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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

We study the nature of feedback mechanisms in the 11 CLASH brightest cluster galaxies (BCGs) that exhibit extended ultraviolet and nebular line emission features. We estimate star formation rates (SFRs), dust masses, and starburst durations…

Astrophysics of Galaxies · Physics 2017-09-13 Kevin Fogarty , Marc Postman , Rebecca Larson , Megan Donahue , John Moustakas

We present a multi-wavelength study of 90 brightest cluster galaxies (BCGs) in a sample of galaxy clusters selected via the Sunyaev Zel'dovich effect by the South Pole Telescope, utilizing data from various ground- and space-based…

We study the star-formation activity in a sample of $\sim$ 56,000 brightest cluster galaxies (BCGs) at $0.05 < z < 0.42$ using optical and infra-red data from SDSS and WISE. We estimate stellar masses and star-formation rates (SFR) through…

Astrophysics of Galaxies · Physics 2022-02-02 G. Orellana-González , P. Cerulo , G. Covone , C. Cheng , R. Leiton , R. Demarco , Marie-Lou Gendron-Marsolais

We present far-infrared (FIR) analysis of 68 Brightest Cluster Galaxies (BCGs) at 0.08 < z < 1.0. Deriving total infrared luminosities directly from Spitzer and Herschel photometry spanning the peak of the dust component (24-500um), we…

Brightest cluster galaxies (BCGs) are usually quiescent, but many exhibit star formation. Here we exploit the opportunity provided by rest-frame UV imaging of galaxy clusters in the CLASH (Cluster Lensing and Supernovae with Hubble)…

Quillen et al. and O'Dea et al. carried out a Spitzer study of a sample of 62 brightest cluster galaxies (BCGs) from the ROSAT Brightest Cluster Sample chosen based on their elevated H-alpha flux. We present Hubble Space Telescope Advanced…

We set the stage for reassessing how star formation, emission-line nebulae, and active galactic nuclei (AGNs) in brightest cluster galaxies (BCGs) depend on the thermodynamics of the intracluster medium (ICM). Our work is based on the 25…

Astrophysics of Galaxies · Physics 2024-08-06 Arsen Levitskiy , Jeremy Lim , Youichi Ohyama , Juno Li , Megan Donahue

I discuss and review recent studies of the signatures of activity in brightest cluster galaxies. Mid-IR spectra appear to show indications of star formation in a sample of 9 BCGs from de Messieres et al. (2009). Other processes like cosmic…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Megan Donahue

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 used broad-band imaging data for 10 cool-core brightest cluster galaxies (BCGs) and conducted a Bayesian analysis using stellar population synthesis to determine the likely properties of the constituent stellar populations. Determination…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Rupal Mittal , John T. Whelan , Francoise Combes

We present new, deep, narrow- and broad-band Hubble Space Telescope observations of seven of the most star-forming brightest cluster galaxies (BCGs). Continuum-subtracted [O II] maps reveal the detailed, complex structure of warm ($T \sim…

We present UV broadband photometry and optical emission-line measurements for a sample of 32 Brightest Cluster Galaxies (BCGs) in clusters of the Representative XMM-Newton Cluster Structure Survey (REXCESS) with z = 0.06-0.18. The REXCESS…

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

A fraction of brightest cluster galaxies (BCGs) shows bright emission in the UV and the blue part of the optical spectrum, which has been interpreted as evidence of recent star formation. Most of these results are based on the analysis of…

Astrophysics of Galaxies · Physics 2016-01-27 S. I. Loubser , A. Babul , H. Hoekstra , A. Mahdavi , M. Donahue , C. Bildfell , G. M. Voit

We present the results of GALEX observations of 17 cool core (CC) clusters of galaxies. We show that GALEX is easily capable of detecting star formation in brightest cluster galaxies (BCGs) out to $z\ge 0.45$ and 50-100 kpc. In most of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Amalia Hicks , Richard F. Mushotzky , Megan Donahue

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 investigate the dust-obscured star formation properties of the massive, X-ray selected galaxy cluster MACS J1931.8-2634 at $z$=0.352. Using far-infrared (FIR) imaging in the range 100-500$\mu$m obtained with the \textit{Herschel}…

Astrophysics of Galaxies · Physics 2015-12-23 J. S. Santos , I. Balestra , P. Tozzi , B. Altieri , I. Valtchanov , A. Mercurio , M. Nonino , Heng Yu , P. Rosati , C. Grillo , E. Medezinski , A. Biviano

We have assembled a sample of high spatial resolution far-UV (Hubble Space Telescope Advanced Camera for Surveys Solar Blind Channel) and Halpha (Maryland-Magellan Tunable Filter) imaging for 15 cool core galaxy clusters. These data provide…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Michael McDonald , Sylvain Veilleux , David S. N. Rupke , Richard Mushotzky , Christopher Reynolds

Quillen et al.(2007) presented an imaging survey with the {\it Spitzer Space Telescope} of 62 brightest cluster galaxies with optical line emission located in the cores of X-ray luminous clusters. They found that at least half of these…

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