Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Lakhchaura, K."'
The Voit et al. (2020) black hole feedback valve model predicts relationships between stellar velocity dispersion and atmospheric structure among massive early-type galaxies. In this work, we test that model using the Chandra archival sample of 49 ea
Externí odkaz:
http://arxiv.org/abs/2201.01306
Autor:
Juráňová, A., Werner, N., Nulsen, P. E. J., Gaspari, M., Lakhchaura, K., Canning, R. E. A., Donahue, M., Hroch, F., Voit, G. M.
X-ray emitting atmospheres of non-rotating early-type galaxies and their connection to central active galactic nuclei have been thoroughly studied over the years. However, in systems with significant angular momentum, processes of heating and cooling
Externí odkaz:
http://arxiv.org/abs/2008.01161
Autor:
Mernier, F., Werner, N., Lakhchaura, K., de Plaa, J., Gu, L., Kaastra, J. S., Mao, J., Simionescu, A., Urdampilleta, I.
Accurate chemical abundance measurements of X-ray emitting atmospheres pervading massive galaxies, galaxy groups, and clusters provide essential information on the star formation and chemical enrichment histories of these large scale structures. Alth
Externí odkaz:
http://arxiv.org/abs/1911.09684
We present a study of relations between the masses of the central supermassive black holes (SMBHs) and the atmospheric gas temperatures and luminosities measured within a range of radii between $R_{\rm e}$ and 5$R_{\rm e}$, for a sample of 47 early-t
Externí odkaz:
http://arxiv.org/abs/1904.10513
Autor:
Grossová, R., Werner, N., Rajpurohit, K., Mernier, F., Lakhchaura, K., Gabányi, K., Canning, R. E. A., Nulsen, P., Massaro, F., Sun, M., Connor, T., King, A., Allen, S. W., Frisbie, R. L. S., Donahue, M., Fabian, A. C.
We present new Karl G. Jansky Very Large Array (VLA, 1.5 GHz) radio data for the giant elliptical galaxy IC 4296, supported by archival radio, X-ray (Chandra, XMM-Newton) and optical (SOAR, HST) observations. The galaxy hosts powerful radio jets pier
Externí odkaz:
http://arxiv.org/abs/1903.03198
Publikováno v:
A&A 623, A17 (2019)
We present azimuthally averaged metal abundance profiles from a full, comprehensive, and conservative re-analysis of the deep ($\sim$800 ks total net exposure) \textit{Chandra}/ACIS-S observation of the Centaurus cluster core (NGC\,4696). After caref
Externí odkaz:
http://arxiv.org/abs/1812.00121
Autor:
Juráňová, A., Werner, N., Gaspari, M., Lakhchaura, K., Nulsen, P. E. J., Sun, M., Canning, R. E. A., Allen, S. W., Simionescu, A., Oonk, J. B. R., Connor, T., Donahue, M.
The relative importance of the physical processes shaping the thermodynamics of the hot gas permeating rotating, massive early-type galaxies is expected to be different from that in non-rotating systems. Here, we report the results of the analysis of
Externí odkaz:
http://arxiv.org/abs/1808.05761
Autor:
Lakhchaura, K., Werner, N., Sun, M., Canning, R. E. A., Gaspari, M., Allen, S. W., Connor, T., Donahue, M., Sarazin, C.
Publikováno v:
MNRAS 481 (2018) 4472-4504
We present a study of the thermal structure of the hot X-ray emitting atmospheres for a sample of 49 nearby X-ray and optically bright elliptical galaxies using {\it Chandra} X-ray data. We focus on the connection between the properties of the hot X-
Externí odkaz:
http://arxiv.org/abs/1806.00455
We present the results of Chandra X-ray observations of the isolated, massive, compact, relic galaxies MRK 1216 and PGC 032873. Compact massive galaxies observed at z>2, also called red nuggets, formed in quick dissipative events and later grew by dr
Externí odkaz:
http://arxiv.org/abs/1711.09983
Publikováno v:
2013, ApJ 767, 91
We present a detailed study of a close pair of clusters of galaxies, A3532 and A3530, and their environments. The \textit{Chandra} X-ray image of A3532 reveals presence of substructures on scales of $\sim$20$^{\prime\prime}$ in its core. XMM-Newton m
Externí odkaz:
http://arxiv.org/abs/1212.0328