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Related papers: Galaxy populations in massive z=0.2-0.9 clusters: …

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We use surveys covering the redshift range $0.05 < z < 3.8$ to explore quiescent galaxy scaling relations and the redshift evolution of the velocity dispersion, size, and dynamical mass at fixed stellar mass. For redshift $z < 0.6$ we…

Astrophysics of Galaxies · Physics 2022-04-20 Ivana Damjanov , Jubee Sohn , Yousuke Utsumi , Margaret J. Geller , Ian Dell'Antonio

We present the stellar population and velocity dispersion gradients for a sample of 24 brightest cluster galaxies (BCGs) in the nearby Universe for which we have obtained high quality long-slit spectra at the Gemini telescopes. With the aim…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 S. I. Loubser , P. Sanchez-Blazquez

We investigate mass-dependent galaxy evolution based on a large sample of (more than 50,000) K-band selected galaxies in a multi-wavelength catalog of the Subaru/XMM-Newton Deep Survey (SXDS) and the UKIRT Infrared Deep Sky Survey…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 Junko Furusawa , Kazuhiro Sekiguchi , Tadafumi Takata , Hisanori Furusawa , Kazuhiro Shimasaku , Chris Simpson , Masayuki Akiyama

We investigate the stellar population properties of a sample of 24 massive quenched galaxies at $1.25<z_\mathrm{spec}<2.09$ identified in the COSMOS field with our Subaru/MOIRCS near-IR spectroscopic observations. Tracing the stellar…

Astrophysics of Galaxies · Physics 2015-07-01 M. Onodera , C. M. Carollo , A. Renzini , M. Cappellari , C. Mancini , N. Arimoto , E. Daddi , R. Gobat , V. Strazzullo , S. Tacchella , Y. Yamada

We study the stellar mass distribution for galaxies in 160 X-ray detected groups of 10^13<Log(M_200/M_sun)<2x10^14 and compare it with that of galaxies in the field, to investigate the action of environment on the build up of the stellar…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 S. Giodini , A. Finoguenov , D. Pierini , G. Zamorani , O. Ilbert , S. Lilly , Y. Peng , N. Scoville , M. Tanaka

Investigating the assembly history of the most massive and passive galaxies will enhance our understanding of why galaxies exhibit such a remarkable diversity in structure and morphology. In this paper, we simultaneously investigate the…

Astrophysics of Galaxies · Physics 2025-01-22 D. Stoppacher , A. D. Montero-Dorta , M. C. Artale , A. Knebe , N. Padilla , A. J. Benson , C. Behrens

We present a photometric and spectroscopic study of stellar populations in the X-ray-luminous cluster of galaxies RXJ0142.0+2131 at z=0.280. This paper analyses the results of high signal-to-noise spectroscopy, as well as g'-, r'-, and…

Astrophysics · Physics 2008-11-26 Jordi Barr , Roger Davies , Inger Jorgensen , Marcel Bergmann , David Crampton

We present Keck LRIS spectroscopy for a sample of 103 massive galaxies with redshifts 0.9 < z < 1.6. Of these, 56 are quiescent with high signal-to-noise absorption line spectra, enabling us to determine robust stellar velocity dispersions…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Sirio Belli , Andrew B. Newman , Richard S. Ellis

We analyse publicly available, individual spectra of four, massive ($M>10^{11}M_{\odot}$) early-type galaxies with redshifts in the range 1.4 < z < 2 to determine their stellar content, extending our previous work up to z~2. The wide…

Astrophysics of Galaxies · Physics 2020-01-15 I. Lonoce , C. Maraston , D. Thomas , M. Longhetti , T. Parikh , P. Guarnieri , J. Comparat

We investigate structural properties of massive galaxy populations in the central regions of five very massive galaxy clusters at z~1.4-1.7 from the South Pole Telescope Sunyaev Zel'dovich effect survey. We probe the connection between…

We present observations of a very massive galaxy at z=1.82 which show that its morphology, size, velocity dispersion and stellar population properties that are fully consistent with those expected for passively evolving progenitors of…

The evolution of galaxies in groups may have important implications for the evolution of the star formation history of the universe, since many processes which operate in groups may suppress star formation and the fraction of galaxies in…

We compare the number density of compact (small size) massive galaxies at low and high redshift using our Padova Millennium Galaxy and Group Catalogue (PM2GC) at z=0.03-0.11 and the CANDELS results from Barro et al. (2013) at z=1-2. The…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 B. M. Poggianti , A. Moretti , R. Calvi , M. D'Onofrio , T. Valentinuzzi , J. Fritz , A. Renzini

The aim of this paper is to set constraints of the epochs of early-type galaxy formation through the 'archaeology' of the stellar populations in local galaxies. Using our models of absorption line indices that account for variable abundance…

Astrophysics · Physics 2009-07-09 D. Thomas , C. Maraston , R. Bender , C. Mendes de Oliveira

We present some preliminary results from an on-going study of the evolution of stellar populations in rich clusters of galaxies. This sample contains core line-strength measurements from 183 galaxies with b_J <= 19.5 from four clusters with…

Astrophysics · Physics 2009-11-10 Craig Harrison , Matthew Colless , Warrick J. Couch , B. A. Peterson

Using the MOSFIRE near-infrared multi-slit spectrograph on the Keck 1 Telescope, we have secured high signal-to-noise ratio absorption line spectra for six massive galaxies with redshift 2 < z < 2.5. Five of these galaxies lie on the red…

Astrophysics of Galaxies · Physics 2015-06-19 Sirio Belli , Andrew B. Newman , Richard S. Ellis , Nick P. Konidaris

We report the results of a comprehensive study of the relationship between galaxy size, stellar mass and specific star-formation rate (sSFR) at redshifts 1.3<z<1.5. Based on a mass complete (M_star >= 6x10^10 Msun), spectroscopic sample…

Spectral line indices for a sample of 290 nearby E and S0 galaxies are used to investigate the stellar populations of these galaxies. Relations are established between the line indices (Mg2, <Fe>, Hbeta) and the velocity dispersions, the…

Astrophysics · Physics 2015-06-24 Inger Jorgensen

We search for massive and compact galaxies (superdense galaxies, hereafter SDGs) at z=0.03-0.11 in the Padova-Millennium Galaxy and Group Catalogue, a spectroscopically complete sample representative of the local Universe general field…

We present galaxy spectroscopic data on a pencil beam of $10.75' \times7.5'$ centered on the X-ray cluster RXJ0054.0-2823 at $z = 0.29$. We study the spectral evolution of galaxies from $z=1$ down to the cluster redshift in a…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 E. Giraud , Q. -S. Gu , J. Melnick , H. Quintana , F. Selman , I. Toledo , P. Zelaya