Zobrazeno 1 - 10
of 51
pro vyhledávání: '"B. R. McNamara"'
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 1, p 69 (2023)
A strong correlation between atmospheric pressure and molecular gas mass is found in central cluster galaxies and early-type galaxies. This trend and a similar trend with atmospheric gas density would naturally arise if the molecular clouds condensed
Externí odkaz:
https://doaj.org/article/df67876fbb5046a4b553e8e6d0220868
We have recently uncovered Hidden Cooling Flows (HCFs) in the XMM RGS spectra of 3 clusters of galaxies, Centaurus, Perseus and A1835. Here we search for them in a wider sample of objects: the X-ray brightest group NGC5044; 4 moderate X-ray luminosit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66f84279e10038ec7ee3685a2cfcb7b1
http://arxiv.org/abs/2211.13971
http://arxiv.org/abs/2211.13971
Autor:
H R Russell, P E J Nulsen, D Caprioli, U Chadayammuri, A C Fabian, M W Kunz, B R McNamara, J S Sanders, A Richard-Laferrière, M Beleznay, R E A Canning, J Hlavacek-Larrondo, L J King
We present a new 2 Ms Chandra observation of the cluster merger Abell 2146, which hosts two huge M~2 shock fronts each ~500 kpc across. For the first time, we resolve and measure the width of cluster merger shocks. The best-fit width for the bow shoc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1f2462ab4c4030f43973c531a961d430
The radiative cooling time of the hot gas at the centres of cool cores in clusters of galaxies drops down to 10 million years and below. The observed mass cooling rate of such gas is very low, suggesting that AGN feedback is very tightly balanced or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::697a4078aacde87c8e48eb9b41a5c71e
Publikováno v:
The Astrophysical Journal, 2023, Vol.944(1), pp.69 [Peer Reviewed Journal]
A strong correlation between atmospheric pressure and molecular gas mass is found in central cluster galaxies and early-type galaxies. This trend and a similar trend with atmospheric gas density would naturally arise if the molecular clouds condensed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a66ef49a552d65f413ab57b4658f927
http://arxiv.org/abs/2110.15410
http://arxiv.org/abs/2110.15410
Autor:
B. R. McNamara
Publikováno v:
Science. 341:1073-1075
High-resolution radio images reveal how jets of relativistic particles can drive the dynamics of galaxy evolution. [Also see Report by Morganti et al. ]
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ba1adeb7e50de923234a4331935af65
https://doi.org/10.1126/science.1243114
https://doi.org/10.1126/science.1243114
Publikováno v:
The Astrophysical Journal. 502:558-581
We present a catalog of 200 clusters of galaxies serendipitously detected in 647 ROSAT PSPC pointings covering 158 square degrees. This is one of the largest X-ray selected cluster samples, comparable in size only to the ROSAT All-Sky Survey sample o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f564f7d4c99f9148fa6e27d593162a47
https://doi.org/10.1086/305951
https://doi.org/10.1086/305951
Autor:
B R, McNamara
Publikováno v:
Science (New York, N.Y.). 341(6150)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::36056bbe961624082cb92a4c4501a033
https://pubmed.ncbi.nlm.nih.gov/24009387
https://pubmed.ncbi.nlm.nih.gov/24009387
Autor:
L. Bi^rzan, D. A. Rafferty, B. R. McNamara, P. E. J. Nulsen, M. W. Wise, Sebastian Heinz, Eric Wilcots
Chandra X-ray Observatory has revealed X-ray cavities in many nearby cooling flow clusters. The cavities trace feedback from the central active galactic nulceus (AGN) on the intracluster medium (ICM), an important ingredient in stabilizing cooling fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad9d011c160181b73b121f25a94d223a
http://arxiv.org/abs/0909.0397
http://arxiv.org/abs/0909.0397
Publikováno v:
AIP Conference Proceedings.
We investigate the possibility that AGN in brightest cluster galaxies (BCGs) are powered by angular momentum released by spinning, supermassive black holes (SMBH). Spin is poorly constrained by observed jet power alone because most spin models requir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7a5542bf3d973ff312beefc5de118a8
https://doi.org/10.1063/1.3293095
https://doi.org/10.1063/1.3293095