more Quotes
Connect with us

Entertainment news

Farmers intensify summer crop planting – The Herald

Farmers intensify summer crop planting


Precious Manomano-Herald Reporter

Farmers in rural and urban areas where soil moisture is reasonable after recent rains have intensified planting summer crops while other farmers are ready to plant in dryland areas in anticipation of heavy rains that are predicted by the Meteorological Services Department this week.

Some parts of the country such as Rusape and Macheke received heavy downpours last week while other parts received isolated showers.

Farmers are more confident that the summer cropping season will be productive despite rainfall likely to be normal to below normal as is characterised by the El Nino season.

A survey by The Herald indicates that most farmers are currently in fields busy planting while others have finished planting three weeks ago with the first rains.

Agricultural experts are encouraging farmers to work hand in glove with extension workers so that they get informed advice on planting, and especially when enough rain has fallen in their area.

“It depends with places so there is no blanket advice because places differ, so farmers should rely on technical advice. We have two extension workers in the ward so it is good to seek advice from them so that we don’t risk replanting. 

“We are on the ground and we are seeing farmers planting but I urge you to get advice from these experts. Some farmers in Masvingo have planted with the first rains that was received around five weeks ago. The crop condition is not good and there is a probability that the crop will have to be replanted,’’ he said.

Zimbabwe Indigenous Women Farmers’ Association Trust president Mrs Depinah Nkomo said although farmers are planting, the situation is tricky because not all places have received enough rains to plant. It would be wise for farmers to stagger planting.

“Do not plant all your crops at the same time in case of eventualities. Yes, farmers are busy planting but its very hot and some of the areas here in Chegutu did not receive enough rains to plant but its unfortunate that farmers are planting in dryland. If we fail to get rains on time, we will lose the crop. 

“This season farmers were well prepared, that’s why they embarked on planting without getting enough rains. This is a tricky season. Last year around 8 November we planted our early crop so farmers should analyse their areas first and check the amounts of rainfall they get in order to plant,’’ she said.

The onset of the rainfall season is when an area receives an amount of 20 millimetres or more of rainfall in about three days and there is no dry spell for the next 10 days.

Maize requires 22 millimetres and above to germinate, and for soya beans 30mm minimum and 35mm to be on the safe side. 

 Lands, Agriculture, Fisheries, Water and Rural Development Permanent Secretary Professor Obert Jiri said farmers can plant provided they get effective rains that are above 20mm.

Farmers need to take advantage of all the rain they do receive even if this is below normal.

The outlook for October this year to March next year is that for the October to December there will be increased chances of normal-to-below normal rainfall for most parts of the country except the greater part of Matabeleland North, parts of Bulawayo Metropolitan, parts of Midlands and parts of Mashonaland West which have increased chances of below normal-to-normal rainfall.

Continue Reading

Entertainment news

Closing the feedback-feeding loop of the radio galaxy 3C 84 – Nature.com

Abstract

Gas accretion by a galaxy’s central supermassive black hole (SMBH) and the resultant energetic feedback by the accreting active galactic nucleus (AGN) on the gas in and around a galaxy are two tightly intertwined but competing processes that play a crucial role in the evolution of galaxies. Observations of galaxy clusters have shown how the plasma jets emitted by an AGN heat the intracluster medium, preventing cooling of the cluster gas and thereby the infall of this gas onto the central galaxy. On the other hand, outflows of multiphase gas, driven by the jets, can cool as they rise into the intracluster medium, leading to filaments of colder gas. The fate of this cold gas is unclear, but it has been suggested that it plays a role in feeding the central SMBH. We present the results of reprocessed CO(2-1) Atacama Large Millimeter/submillimeter Array observations of the cold molecular gas in the central regions of NGC 1275, the central galaxy of the Perseus cluster and which hosts the radio-loud AGN 3C 84 (Perseus A). These data show in detail how kiloparsec-sized cold gas filaments resulting from the jet-induced cooling of cluster gas are flowing towards the galaxy centre and how they feed the circum-nuclear accretion disk (100 pc diameter) of the SMBH. Thus, cooled gas can, in this way, play a role in feeding the AGN. These results complete our view of the feedback loop of how an AGN can impact its surroundings and how the effects of this impact maintain the AGN activity.

This is a preview of subscription content, access via your institution

Access options

/* style specs start */
style{display:none!important}.LiveAreaSection-193358632 *{align-content:stretch;align-items:stretch;align-self:auto;animation-delay:0s;animation-direction:normal;animation-duration:0s;animation-fill-mode:none;animation-iteration-count:1;animation-name:none;animation-play-state:running;animation-timing-function:ease;azimuth:center;backface-visibility:visible;background-attachment:scroll;background-blend-mode:normal;background-clip:borderBox;background-color:transparent;background-image:none;background-origin:paddingBox;background-position:0 0;background-repeat:repeat;background-size:auto auto;block-size:auto;border-block-end-color:currentcolor;border-block-end-style:none;border-block-end-width:medium;border-block-start-color:currentcolor;border-block-start-style:none;border-block-start-width:medium;border-bottom-color:currentcolor;border-bottom-left-radius:0;border-bottom-right-radius:0;border-bottom-style:none;border-bottom-width:medium;border-collapse:separate;border-image-outset:0s;border-image-repeat:stretch;border-image-slice:100%;border-image-source:none;border-image-width:1;border-inline-end-color:currentcolor;border-inline-end-style:none;border-inline-end-width:medium;border-inline-start-color:currentcolor;border-inline-start-style:none;border-inline-start-width:medium;border-left-color:currentcolor;border-left-style:none;border-left-width:medium;border-right-color:currentcolor;border-right-style:none;border-right-width:medium;border-spacing:0;border-top-color:currentcolor;border-top-left-radius:0;border-top-right-radius:0;border-top-style:none;border-top-width:medium;bottom:auto;box-decoration-break:slice;box-shadow:none;box-sizing:border-box;break-after:auto;break-before:auto;break-inside:auto;caption-side:top;caret-color:auto;clear:none;clip:auto;clip-path:none;color:initial;column-count:auto;column-fill:balance;column-gap:normal;column-rule-color:currentcolor;column-rule-style:none;column-rule-width:medium;column-span:none;column-width:auto;content:normal;counter-increment:none;counter-reset:none;cursor:auto;display:inline;empty-cells:show;filter:none;flex-basis:auto;flex-direction:row;flex-grow:0;flex-shrink:1;flex-wrap:nowrap;float:none;font-family:initial;font-feature-settings:normal;font-kerning:auto;font-language-override:normal;font-size:medium;font-size-adjust:none;font-stretch:normal;font-style:normal;font-synthesis:weight style;font-variant:normal;font-variant-alternates:normal;font-variant-caps:normal;font-variant-east-asian:normal;font-variant-ligatures:normal;font-variant-numeric:normal;font-variant-position:normal;font-weight:400;grid-auto-columns:auto;grid-auto-flow:row;grid-auto-rows:auto;grid-column-end:auto;grid-column-gap:0;grid-column-start:auto;grid-row-end:auto;grid-row-gap:0;grid-row-start:auto;grid-template-areas:none;grid-template-columns:none;grid-template-rows:none;height:auto;hyphens:manual;image-orientation:0deg;image-rendering:auto;image-resolution:1dppx;ime-mode:auto;inline-size:auto;isolation:auto;justify-content:flexStart;left:auto;letter-spacing:normal;line-break:auto;line-height:normal;list-style-image:none;list-style-position:outside;list-style-type:disc;margin-block-end:0;margin-block-start:0;margin-bottom:0;margin-inline-end:0;margin-inline-start:0;margin-left:0;margin-right:0;margin-top:0;mask-clip:borderBox;mask-composite:add;mask-image:none;mask-mode:matchSource;mask-origin:borderBox;mask-position:0 0;mask-repeat:repeat;mask-size:auto;mask-type:luminance;max-height:none;max-width:none;min-block-size:0;min-height:0;min-inline-size:0;min-width:0;mix-blend-mode:normal;object-fit:fill;object-position:50% 50%;offset-block-end:auto;offset-block-start:auto;offset-inline-end:auto;offset-inline-start:auto;opacity:1;order:0;orphans:2;outline-color:initial;outline-offset:0;outline-style:none;outline-width:medium;overflow:visible;overflow-wrap:normal;overflow-x:visible;overflow-y:visible;padding-block-end:0;padding-block-start:0;padding-bottom:0;padding-inline-end:0;padding-inline-start:0;padding-left:0;padding-right:0;padding-top:0;page-break-after:auto;page-break-before:auto;page-break-inside:auto;perspective:none;perspective-origin:50% 50%;pointer-events:auto;position:static;quotes:initial;resize:none;right:auto;ruby-align:spaceAround;ruby-merge:separate;ruby-position:over;scroll-behavior:auto;scroll-snap-coordinate:none;scroll-snap-destination:0 0;scroll-snap-points-x:none;scroll-snap-points-y:none;scroll-snap-type:none;shape-image-threshold:0;shape-margin:0;shape-outside:none;tab-size:8;table-layout:auto;text-align:initial;text-align-last:auto;text-combine-upright:none;text-decoration-color:currentcolor;text-decoration-line:none;text-decoration-style:solid;text-emphasis-color:currentcolor;text-emphasis-position:over right;text-emphasis-style:none;text-indent:0;text-justify:auto;text-orientation:mixed;text-overflow:clip;text-rendering:auto;text-shadow:none;text-transform:none;text-underline-position:auto;top:auto;touch-action:auto;transform:none;transform-box:borderBox;transform-origin:50% 50%0;transform-style:flat;transition-delay:0s;transition-duration:0s;transition-property:all;transition-timing-function:ease;vertical-align:baseline;visibility:visible;white-space:normal;widows:2;width:auto;will-change:auto;word-break:normal;word-spacing:normal;word-wrap:normal;writing-mode:horizontalTb;z-index:auto;-webkit-appearance:none;-moz-appearance:none;-ms-appearance:none;appearance:none;margin:0}.LiveAreaSection-193358632{width:100%}.LiveAreaSection-193358632 .login-option-buybox{display:block;width:100%;font-size:17px;line-height:30px;color:#222;padding-top:30px;font-family:Harding,Palatino,serif}.LiveAreaSection-193358632 .additional-access-options{display:block;font-weight:700;font-size:17px;line-height:30px;color:#222;font-family:Harding,Palatino,serif}.LiveAreaSection-193358632 .additional-login>li:not(:first-child)::before{transform:translateY(-50%);content:””;height:1rem;position:absolute;top:50%;left:0;border-left:2px solid #999}.LiveAreaSection-193358632 .additional-login>li:not(:first-child){padding-left:10px}.LiveAreaSection-193358632 .additional-login>li{display:inline-block;position:relative;vertical-align:middle;padding-right:10px}.BuyBoxSection-683559780{display:flex;flex-wrap:wrap;flex:1;flex-direction:row-reverse;margin:-30px -15px 0}.BuyBoxSection-683559780 .box-inner{width:100%;height:100%}.BuyBoxSection-683559780 .readcube-buybox{background-color:#f3f3f3;flex-shrink:1;flex-grow:1;flex-basis:255px;background-clip:content-box;padding:0 15px;margin-top:30px}.BuyBoxSection-683559780 .subscribe-buybox{background-color:#f3f3f3;flex-shrink:1;flex-grow:4;flex-basis:300px;background-clip:content-box;padding:0 15px;margin-top:30px}.BuyBoxSection-683559780 .subscribe-buybox-nature-plus{background-color:#f3f3f3;flex-shrink:1;flex-grow:4;flex-basis:100%;background-clip:content-box;padding:0 15px;margin-top:30px}.BuyBoxSection-683559780 .title-readcube,.BuyBoxSection-683559780 .title-buybox{display:block;margin:0;margin-right:10%;margin-left:10%;font-size:24px;line-height:32px;color:#222;padding-top:30px;text-align:center;font-family:Harding,Palatino,serif}.BuyBoxSection-683559780 .title-asia-buybox{display:block;margin:0;margin-right:5%;margin-left:5%;font-size:24px;line-height:32px;color:#222;padding-top:30px;text-align:center;font-family:Harding,Palatino,serif}.BuyBoxSection-683559780 .asia-link{color:#069;cursor:pointer;text-decoration:none;font-size:1.05em;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif;line-height:1.05em6}.BuyBoxSection-683559780 .access-readcube{display:block;margin:0;margin-right:10%;margin-left:10%;font-size:14px;color:#222;padding-top:10px;text-align:center;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif;line-height:20px}.BuyBoxSection-683559780 .access-asia-buybox{display:block;margin:0;margin-right:5%;margin-left:5%;font-size:14px;color:#222;padding-top:10px;text-align:center;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif;line-height:20px}.BuyBoxSection-683559780 .access-buybox{display:block;margin:0;margin-right:10%;margin-left:10%;font-size:14px;color:#222;opacity:.8px;padding-top:10px;text-align:center;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif;line-height:20px}.BuyBoxSection-683559780 .price-buybox{display:block;font-size:30px;color:#222;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif;padding-top:30px;text-align:center}.BuyBoxSection-683559780 .price-buybox-to{display:block;font-size:30px;color:#222;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif;text-align:center}.BuyBoxSection-683559780 .price-info-text{font-size:16px;padding-right:10px;color:#222;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif}.BuyBoxSection-683559780 .price-value{font-size:30px;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif}.BuyBoxSection-683559780 .price-per-period{font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif}.BuyBoxSection-683559780 .price-from{font-size:14px;padding-right:10px;color:#222;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif;line-height:20px}.BuyBoxSection-683559780 .issue-buybox{display:block;font-size:13px;text-align:center;color:#222;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif;line-height:19px}.BuyBoxSection-683559780 .no-price-buybox{display:block;font-size:13px;line-height:18px;text-align:center;padding-right:10%;padding-left:10%;padding-bottom:20px;padding-top:30px;color:#222;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif}.BuyBoxSection-683559780 .vat-buybox{display:block;margin-top:5px;margin-right:20%;margin-left:20%;font-size:11px;color:#222;padding-top:10px;padding-bottom:15px;text-align:center;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif;line-height:17px}.BuyBoxSection-683559780 .tax-buybox{display:block;width:100%;color:#222;padding:20px 16px;text-align:center;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif;line-height:NaNpx}.BuyBoxSection-683559780 .button-container{display:flex;padding-right:20px;padding-left:20px;justify-content:center}.BuyBoxSection-683559780 .button-container>*{flex:1px}.BuyBoxSection-683559780 .button-container>a:hover,.Button-505204839:hover,.Button-1078489254:hover,.Button-2496381730:hover{text-decoration:none}.BuyBoxSection-683559780 .readcube-button{background:#fff;margin-top:30px}.BuyBoxSection-683559780 .button-asia{background:#069;border:1px solid #069;border-radius:0;cursor:pointer;display:block;padding:9px;outline:0;text-align:center;text-decoration:none;min-width:80px;margin-top:75px}.BuyBoxSection-683559780 .button-label-asia,.ButtonLabel-3869432492,.ButtonLabel-3296148077,.ButtonLabel-1651148777{display:block;color:#fff;font-size:17px;line-height:20px;font-family:-apple-system,BlinkMacSystemFont,”Segoe UI”,Roboto,Oxygen-Sans,Ubuntu,Cantarell,”Helvetica Neue”,sans-serif;text-align:center;text-decoration:none;cursor:pointer}.Button-505204839,.Button-1078489254,.Button-2496381730{background:#069;border:1px solid #069;border-radius:0;cursor:pointer;display:block;padding:9px;outline:0;text-align:center;text-decoration:none;min-width:80px;max-width:320px;margin-top:10px}.Button-505204839 .readcube-label,.Button-1078489254 .readcube-label,.Button-2496381730 .readcube-label{color:#069}
/* style specs end */

Rent or buy this article

Prices vary by article type

from$1.95

to$39.95

Prices may be subject to local taxes which are calculated during checkout

Fig. 1: Position–velocity plots illustrating the improvement of the data after reprocessing.
Fig. 2: Total intensity image and velocity field of the CO(2-1) in the central regions of NGC 1275.
Fig. 3: Zoom-in of the CO emission and velocity field in the central regions of NGC 1275.
Fig. 4: Position–velocity plots taken along CO(2-1) filaments accreting onto the CND.
Fig. 5: Position–velocity plot of the CO(2-1) emission after integrating the data cube in declination.
Fig. 6: Position–velocity plot along filament B showing local anomalous velocities.

Data availability

The calibrated data cube is available from https://astrodrive.astro.rug.nl/index.php/s/g1y6QlCeGFd5XiG, or from the corresponding author on reasonable request.

Code availability

The data were reduced using the publicly available software MIRIAD (ref. 34) and Sofia-2 (ref. 35).

References

  1. Russell, H. R. et al. Driving massive molecular gas flows in central cluster galaxies with AGN feedback. Mon. Not. R. Astron. Soc. 490, 3025–3045 (2019).

    Article 
    ADS 

    Google Scholar
     

  2. Fabian, A. C. et al. A wide Chandra view of the core of the Perseus cluster. Mon. Not. R. Astron. Soc. 418, 2154–2164 (2011).

    Article 
    ADS 

    Google Scholar
     

  3. Pedlar, A. et al. The radio structure of NGC 1275. Mon. Not. R. Astron. Soc. 246, 477 (1990).

    ADS 

    Google Scholar
     

  4. Minkowski, R. Optical investigations of radio sources (introductory lecture). In Proc. Symposium of the International Astronomical Union, Vol. 4 (ed. van de Hulst, H. C.) 107–122 (Cambridge Univ. Press, 1957).

  5. Conselice, C. J., Gallagher, I., John, S. & Wyse, R. F. G. On the nature of the NGC 1275 system. Astron. J. 122, 2281–2300 (2001).

    Article 
    ADS 

    Google Scholar
     

  6. Fabian, A. C. et al. Magnetic support of the optical emission line filaments in NGC 1275. Nature 454, 968–970 (2008).

    Article 
    ADS 

    Google Scholar
     

  7. Gendron-Marsolais, M. et al. Revealing the velocity structure of the filamentary nebula in NGC 1275 in its entirety. Mon. Not. R. Astron. Soc. 479, L28–L33 (2018).

    ADS 

    Google Scholar
     

  8. Hatch, N. A., Crawford, C. S., Fabian, A. C. & Johnstone, R. M. Detections of molecular hydrogen in the outer filaments of NGC1275. Mon. Not. R. Astron. Soc. 358, 765–773 (2005).

    Article 
    ADS 

    Google Scholar
     

  9. Lim, J., Ohyama, Y., Yan, C.-H., Ding-V-Trung, & Wang, S.-Y. A molecular hydrogen nebula in the central cD galaxy of the Perseus cluster. Astrophys. J. 744, 112 (2012).

    Article 
    ADS 

    Google Scholar
     

  10. Salomé, P. et al. Cold molecular gas in the Perseus cluster core. Association with X-ray cavity, Hα filaments and cooling flow. Astron. Astrophys. 454, 437–445 (2006).

    Article 
    ADS 

    Google Scholar
     

  11. Lim, J., Ao, Y. & Ding-V-Trung, Radially inflowing molecular gas in NGC 1275 deposited by an X-ray cooling flow in the Perseus cluster. Astrophys. J. 672, 252–265 (2008).

    Article 
    ADS 

    Google Scholar
     

  12. Ho, I. T., Lim, J. & Ding-V-Trung, Multiple radial cool molecular filaments in NGC 1275. Astrophys. J. 698, 1191–1206 (2009).

    Article 
    ADS 

    Google Scholar
     

  13. Fabian, A. C. et al. The energy source of the filaments around the giant galaxy NGC 1275. Mon. Not. R. Astron. Soc. 417, 172–177 (2011).

    Article 
    ADS 

    Google Scholar
     

  14. Wilman, R. J., Edge, A. C. & Johnstone, R. M. The nature of the molecular gas system in the core of NGC 1275. Mon. Not. R. Astron. Soc. 359, 755–764 (2005).

    Article 
    ADS 

    Google Scholar
     

  15. Scharwächter, J., McGregor, P. J., Dopita, M. A. & Beck, T. L. Kinematics and excitation of the molecular hydrogen accretion disc in NGC 1275. Mon. Not. R. Astron. Soc. 429, 2315–2332 (2013).

    Article 
    ADS 

    Google Scholar
     

  16. Nagai, H. et al. The ALMA discovery of the rotating disk and fast outflow of cold molecular gas in NGC 1275. Astrophys. J. 883, 193 (2019).

    Article 
    ADS 

    Google Scholar
     

  17. Salomé, P. et al. Observations of CO in the eastern filaments of NGC 1275. Astron. Astrophys. 483, 793–799 (2008).

    Article 
    ADS 

    Google Scholar
     

  18. Salomé, P. et al. A very extended molecular web around NGC 1275. Astron. Astrophys. 531, A85 (2011).

    Article 

    Google Scholar
     

  19. Fabian, A. C. et al. Do sound waves transport the AGN energy in the Perseus cluster? Mon. Not. R. Astron. Soc. 464, L1–L5 (2017).

    Article 
    ADS 

    Google Scholar
     

  20. Churazov, E., Sunyaev, R., Forman, W. & Böhringer, H. Cooling flows as a calorimeter of active galactic nucleus mechanical power. Mon. Not. R. Astron. Soc. 332, 729–734 (2002).

    Article 
    ADS 

    Google Scholar
     

  21. Hatch, N. A., Crawford, C. S., Johnstone, R. M. & Fabian, A. C. On the origin and excitation of the extended nebula surrounding NGC1275. Mon. Not. R. Astron. Soc. 367, 433–448 (2006).

    Article 
    ADS 

    Google Scholar
     

  22. Qiu, Y., Bogdanović, T., Li, Y., McDonald, M. & McNamara, B. R. The formation of dusty cold gas filaments from galaxy cluster simulations. Nat. Astron. 4, 900–906 (2020).

    Article 
    ADS 

    Google Scholar
     

  23. Gaspari, M., Temi, P. & Brighenti, F. Raining on black holes and massive galaxies: the top-down multiphase condensation model. Mon. Not. R. Astron. Soc. 466, 677–704 (2017).

    Article 
    ADS 

    Google Scholar
     

  24. Bolatto, A. D., Wolfire, M. & Leroy, A. K. The CO-to-H2 conversion factor. Ann. Rev. Astron. Astrophys. 51, 207–268 (2013).

    Article 
    ADS 

    Google Scholar
     

  25. Bregman, J. N., Fabian, A. C., Miller, E. D. & Irwin, J. A. On VI observations of galaxy clusters: evidence for modest cooling flows. Astrophys. J. 642, 746–751 (2006).

    Article 
    ADS 

    Google Scholar
     

  26. Holtzman, J. A. et al. Planetary camera observations of NGC 1275: discovery of a central population of compact massive blue star clusters. Astron. J. 103, 691 (1992).

    Article 
    ADS 

    Google Scholar
     

  27. Lim, J., Wong, E., Ohyama, Y. & Yeung, M. C. H. Recent formation of a spiral disk hosting progenitor globular clusters at the center of the Perseus brightest cluster galaxy. II. Progenitor globular clusters. Astrophys. J. 927, 138 (2022).

    Article 
    ADS 

    Google Scholar
     

  28. Nagai, H. et al. VLBI Monitoring of 3C 84 (NGC 1275) in early phase of the 2005 outburst. Publ. Astron. Soc. Jpn 62, L11 (2010).

    Article 
    ADS 

    Google Scholar
     

  29. Kino, M. et al. Morphological transition of the compact radio lobe in 3C 84 via the strong jet–cloud collision. Astrophys. J. Lett. 920, L24 (2021).

    Article 
    ADS 

    Google Scholar
     

  30. Hogan, M. T. et al. A comprehensive study of the radio properties of brightest cluster galaxies. Mon. Not. R. Astron. Soc. 453, 1201–1222 (2015).

    Article 
    ADS 

    Google Scholar
     

  31. O’Dea, C. P., Dent, W. A. & Balonek, T. J. The 20 year spectral evolution of the radio nucleus of NGC 1275. Astrophys. J. 278, 89–95 (1984).

    Article 
    ADS 

    Google Scholar
     

  32. Dutson, K. L. et al. A non-thermal study of the brightest cluster galaxy NGC 1275 – the gamma-radio connection over four decades. Mon. Not. R. Astron. Soc. 442, 2048–2057 (2014).

    Article 
    ADS 

    Google Scholar
     

  33. Paraschos, G. F. et al. A multi-band study and exploration of the radio wave-γ-ray connection in 3C 84. Astron. Astrophys. 669, A32 (2023).

    Article 

    Google Scholar
     

  34. Sault, R. J., Teuben, P. J. & Wright, M. C. H. A retrospective view of MIRIAD. ASP Conf. Ser. 77, 433–436.

  35. Westmeier, T. et al. SOFIA 2 – an automated, parallel H i source finding pipeline for the WALLABY survey. Mon. Not. R. Astron. Soc. 506, 3962–3976 (2021).

    Article 
    ADS 

    Google Scholar
     

  36. Lim, J., Dinh-V-Trung, Vrtilek, J., David, L. P. & Forman, W. The role of electron excitation and nature of molecular gas in cluster central elliptical galaxies. Astrophys. J. 850, 31 (2017).

    Article 
    ADS 

    Google Scholar
     

Download references

Acknowledgements

This work is based on reprocessing of the ALMA observations carried out under project number 2017.0.01257.S and which were published in original form by Nagai et al.16.

Author information

Authors and Affiliations

Authors

Contributions

T.O. and R.M. conceived the project. T.O. reduced the data. T.O., R.M. and S.M. carried out the analysis and wrote the manuscript. All authors discussed the results and commented on the manuscript.

Corresponding author

Correspondence to
Tom Oosterloo.

Ethics declarations

Competing interests

The authors declare no competing interests.

Peer review

Peer review information

Nature Astronomy thanks Alastair Edge and Jeremy Lim for their contribution to the peer review of this work.

Additional information

Publisher’s note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and Permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Oosterloo, T., Morganti, R. & Murthy, S. Closing the feedback-feeding loop of the radio galaxy 3C 84.
Nat Astron (2023). https://doi.org/10.1038/s41550-023-02138-y

Download citation

  • Received: 31 March 2023

  • Accepted: 19 October 2023

  • Published: 30 November 2023

  • DOI: https://doi.org/10.1038/s41550-023-02138-y

Continue Reading

Entertainment news

Disney Speedstorm – Season 5 Trailer “Let It Go” – Nintendo Switch – Nintendo of America

Continue Reading

Entertainment news

Oil prices fall amid skepticism on OPEC+ supply cuts – Reuters

  • OPEC+ producers agree to nearly 2 million bpd of voluntary cuts
  • Saudi Arabia will extend a voluntary cut of 1 million bpd
  • Oil prices fell sharply on output cut compliance skepticism

Nov 30 (Reuters) – Oil prices fell on Thursday after rising by more than 1% earlier in the session after OPEC+ oil producers agreed to voluntary output cuts approaching 2 million barrels per day (bpd) for early next year, with each country announcing separately its voluntary cut.

Brent crude futures for January fell by 50 cents, or 0.6%, to $82.60 a barrel by 11:30 a.m. EDT (1630 GMT). The front-month Brent contract, down about 6% on the month, expires later on Thursday.

The more liquid February contract was down $2.54, or 3.1%, at $80.34.

U.S. West Texas Intermediate crude futures fell by $2.63, or 3.4%, to $75.24, and is down about 9% on the month.

Brent’s premium to U.S. WTI futures hit its highest since January in the session.

Saudi Arabia, Russia and other members of OPEC+, who pump more than 40% of the world’s oil, held a virtual meeting on Thursday to discuss 2024 output amid concerns the market faces a potential surplus.

OPEC+ said the latest agreement would involve cuts approaching 2 million bpd, including Saudi Arabia extending a voluntary cut of 1 million bpd it has had in place since July.

Their output of some 43 million bpd already reflects cuts of about 5 million bpd aimed at supporting prices and stabilising the market.

The additional OPEC+ cuts for the first quarter of 2024 are set to be voluntary, a delegate said. Each country will announce separately its voluntary cut, according to a source familiar with the matter.

But there is a large degree of skepticism on how individual OPEC members will reach those cuts, according to Bob Yawger, director of energy futures at Mizuho.

“This is a very sketchy report – there is a huge question of their credibility in how these cuts will happen,” Yawger said, adding that the UAE is supposed to be increasing production by 200,000 bpd by 2024.

Nigeria has been given a 2024 output quota of 1.5 million barrels per day (bpd), Angola 1.11 million bpd and Congo 0.277 million bpd, a draft statement from OPEC+ seen by Reuters showed.

Russia will cut 500,000 bpd and others will also contribute cuts, one source said.

Algeria’s energy minister told Reuters his country had agreed to curb its output by 50,000 bpd.

OPEC+ oil-producing countries meeting on Thursday to discuss 2024 output levels will convene again next June on 2024 output levels, according to a source familiar with the matter.

The meeting, being held on the same day as global leaders gather in Dubai for the U.N. climate conference, was originally scheduled for last week but was deferred because of disagreements over output quotas for African producers.

The OPEC+ Joint Ministerial Monitoring Committee (JMMC) ended its meeting on Thursday without making a recommendation regarding 2024 output levels, three delegates told Reuters.

The committee met ahead of the wider meeting of ministers from the OPEC+ group of oil-producing nations.

Implementing additional cuts will send prices higher in the immediate future, but the long-term impact is harder to predict, said Tamas Varga of oil broker PVM.

Compliance will be an issue and the global oil balance is probably much less tight than OPEC estimates, he said, citing the latest commercial inventory data out of the United States and the effect on demand from stubbornly high interest rates in many major economies.

Reporting by Laura Sanicola in Washington, Robert Harvey and Natalie Grover in London and Jeslyn Lerh in Singapore
Additional reporting by Laura Sanicola in Washington
Editing by David Goodman, Kirsten Donovan and Lisa Shumaker

Our Standards: The Thomson Reuters Trust Principles.

Acquire Licensing Rights, opens new tab

Thomson Reuters

Reports on oil and energy, including refineries, markets and renewable fuels. Previously worked at Euromoney Institutional Investor and CNN.

Continue Reading

Trending

Copyright © 2021 ZimFocus.

www.1africafocus.com

www.zimfocus.co.zw

www.classifieds.com/

One Zimbabwe Classifieds | ZimMarket

www.classifiedszim.com

www.1zimbabweclassifieds.co.zw

www.1southafricaclassifieds.com

www.1africaclassifieds.com

www.1usaclassifieds.com

www.computertraining.co.zw/

www.1itonlinetraining.com/

www.bbs-bitsbytesandstem.com/

Zimbabwe Market Classifieds | ZimMarket

1 Zimbabwe Market Classifieds | ZimMarket

www.1zimlegends.com

Linking Buyers To Sellers Is Our Business Tradition