English
Related papers

Related papers: Molecular gas in cool-core brightest cluster galax…

200 papers

Recent efforts to characterise the molecular gas content of brightest cluster galaxies (BCGs) at intermediate redshift have revealed a sub-population of gas-rich systems, whose star formation activity is likely influenced by environmental…

Brightest cluster galaxies (BCGs) are among the most massive galaxies in the Universe. Their star formation (SF) history and stellar mass assembly are debated. Recent studies suggest the presence of an emerging population of…

Brightest Cluster Galaxies (BCGs) are typically massive ellipticals at the centers of clusters. They are believed to experience strong environmental processing, and their mass assembly and star formation history are still debated. We have…

Astrophysics of Galaxies · Physics 2022-11-16 G. Castignani , M. Radovich , F. Combes , P. Salomé , M. Maturi , L. Moscardini , S. Bardelli , C. Giocoli , G. Lesci , F. Marulli , E. Puddu , M. Sereno

Today, the brightest cluster galaxies (BCGs) are passive and very massive galaxies at the center of their clusters, and they still accrete mass through swallowing companions and gas from cooling flows. However their formation history is not…

Astrophysics of Galaxies · Physics 2020-03-18 G. Castignani , F. Combes , P. Salomé

The stellar mass assembly of brightest cluster galaxies (BCGs) is still debated. We have observed in CO with the IRAM-30m two star forming BCGs belonging to SpARCS clusters, 3C 244.1 ($z=0.4$) and SDSS J161112.65+550823.5 ($z=0.9$), and…

Astrophysics of Galaxies · Physics 2020-03-11 G. Castignani , F. Combes , P. Salomé , J. Freundlich

We present ALMA CO (2-1) detections of 24 star-forming Brightest Cluster Galaxies (BCGs) over $0.2<z<1.2$, constituting the largest and most distant sample of molecular gas measurements in BCGs to date. The BCGs are selected from the…

Brightest cluster galaxies (BCGs) are excellent laboratories to study galaxy evolution in dense Mpc-scale environments. We have observed in CO(1-0), CO(2-1), CO(3-2), or CO(4-3), with the IRAM-30m, 18 BCGs at $z\sim0.2-0.9$ that are drawn…

Astrophysics of Galaxies · Physics 2020-08-19 G. Castignani , M. Pandey-Pommier , S. L. Hamer , F. Combes , P. Salomé , J. Freundlich , P. Jablonka

We investigate the relationship between brightest cluster galaxies (BCGs) and their host clusters using a sample of nearby galaxy clusters from the Representative XMM Cluster Structure Survey (REXCESS). The sample was imaged with the…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-11 D. B. Haarsma , L. Leisman , M. Donahue , S. Bruch , H. Boehringer , J. H. Croston , G. W. Pratt , G. M. Voit , M. Arnaud , D. Pierini

We present multi-wavelength observations of the centre of RXCJ1504.1-0248 - the galaxy cluster with the most luminous and relatively nearby cool core at z~0.2. Although there are several galaxies within 100 kpc of the cluster core, only the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 G. A. Ogrean , N. A. Hatch , A. Simionescu , H. Böhringer , M. Brüggen , A. C. Fabian , N. Werner

Brightest Cluster Galaxies (BCGs) are believed to have assembled most of their stars early in time and, therefore, should be passively evolving at low redshifts and appear "red-and-dead." However, there have been reports that a minority of…

Astrophysics of Galaxies · Physics 2018-02-07 James Runge , Haojing Yan

We present new ALMA observations of the molecular gas and far-infrared continuum around the brightest cluster galaxy (BCG) in the cool-core cluster MACS 1931.8-2635. Our observations reveal $1.9 \pm 0.3 \times 10^{10}$ M$_{\odot}$ of…

Recent molecular line observations with ALMA and NOEMA in several Brightest Cluster Galaxies (BCG) have revealed the large-scale filamentary structure at the center of cool core clusters. These filaments extend over 20-100kpc, they are…

Astrophysics of Galaxies · Physics 2020-04-08 Francoise Combes

The central dominant galaxies in galaxy clusters constitute the most massive and luminous galaxies in the Universe. Despite this, the formation of these brightest cluster galaxies (BCGs) and the impact of this on the surrounding cluster…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Jesper Rasmussen , John S. Mulchaey , Lei Bai , Trevor J. Ponman , Somak Raychaudhury , Ali Dariush

We reveal the importance of ongoing in-situ star formation in the Brightest Cluster Galaxy in the massive cool-core CLASH cluster MACS 1931.8-2635 at z=0.35. Using a multi-wavelength approach, we assess the stellar and warm ionized medium…

Astrophysics of Galaxies · Physics 2021-05-05 B. I. Ciocan , B. L. Ziegler , M. Verdugo , P. Papaderos , K. Fogarty , M. Donahue , M. Postman

To advance our understanding of the fuelling and feedback processes which power the Universe's most massive black holes, we require a significant increase in our knowledge of the molecular gas which exists in their immediate surroundings.…

We investigate the relationship between X-ray cooling and star formation in brightest cluster galaxies (BCGs). We present an X-ray spectral analysis of the inner regions, 10-40 kpc, of six nearby cool core clusters (z<0.35) observed with…

Astrophysics of Galaxies · Physics 2016-11-23 S. Molendi , P. Tozzi , M. Gaspari , S. De Grandi , F. Gastaldello , S. Ghizzardi , M. C. Rossetti

We present a multi-wavelength photometric and spectroscopic study of 42 Brightest Cluster Galaxies (BCGs) in two samples of galaxy clusters chosen for a gravitational lensing study. The study's initial sample combines 25 BCGs from the…

We consider a situation in which a brightest cluster galaxy (BCG) moves in ambient hot gas in the central region of a cool core cluster of galaxies, following the study by Inoue (2014, PASJ, 66, 60). In the rest frame of the BCG, the hot…

High Energy Astrophysical Phenomena · Physics 2021-12-22 Hajime Inoue

We identify a total of 120 early-type Brightest Cluster Galaxies (BCGs) at 0.1<z<0.4 in two recent large cluster catalogues selected from the Sloan Digital Sky Survey (SDSS). They are selected with strong emission lines in their optical…

Astrophysics of Galaxies · Physics 2015-06-04 F. S. Liu , Shude Mao , X. M. Meng

The brightest cluster galaxy (BCG) in the majority of relaxed, cool core galaxy clusters is radio loud, showing non-thermal radio jets and lobes ejected by the central active galactic nucleus (AGN). Such relativistic plasma has been…

Cosmology and Nongalactic Astrophysics · Physics 2016-02-29 Myriam Gitti
‹ Prev 1 2 3 10 Next ›