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Related papers: The Stellar Mass Fundamental Plane and Compact Qui…

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We examine the relation between surface brightness, velocity dispersion and size$-$the fundamental plane$-$for quiescent galaxies at intermediate redshifts in the COSMOS field. The COSMOS sample consists of $\sim150$ massive quiescent…

Astrophysics of Galaxies · Physics 2015-03-31 H. Jabran Zahid , Ivana Damjanov , Margaret Geller , Igor Chilingarian

We set out to quantify the number density of quiescent massive compact galaxies at intermediate redshifts. We determine structural parameters based on i-band imaging using the CFHT equatorial SDSS Stripe 82 (CS82) survey (~170 sq. degrees)…

We analyze 40 cosmological re-simulations of individual massive galaxies with present-day stellar masses of $M_{*} > 6.3 \times 10^{10} M_{\odot}$ in order to investigate the physical origin of the observed strong increase in galaxy sizes…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Ludwig Oser , Thorsten Naab , Jeremiah P. Ostriker , Peter H. Johansson

We investigate the evolution of compact galaxy number density over the redshift range $0.2<z<0.8$. Our sample consists of galaxies with secure spectroscopic redshifts observed in the COSMOS field. With the large uncertainties, the compact…

Astrophysics of Galaxies · Physics 2015-05-07 Ivana Damjanov , Margaret J. Geller , H. Jabran Zahid , Ho Seong Hwang

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

Massive quiescent galaxies at high redshift show significantly more compact morphology than their local counterparts. To examine their internal structure across a wide redshift range and investigate potential redshift dependence, we…

We study the history from $z\sim2$ to $z\sim0$ of the stellar mass assembly of quiescent and star-forming galaxies in a spatially resolved fashion. For this purpose we use multi-wavelength imaging data from the Hubble Space Telescope (HST)…

Recent studies have shown that massive quiescent galaxies at high redshift are much more compact than present-day galaxies of the same mass. Here we compare the radial stellar density profiles and the number density of a sample of massive…

Cosmology and Nongalactic Astrophysics · Physics 2010-01-15 Rachel Bezanson , Pieter G. van Dokkum , Tomer Tal , Danilo Marchesini , Mariska Kriek , Marijn Franx , Paolo Coppi

We explore the relations between size, stellar mass and average stellar population age (indicated by D$_n4000$ indices) for a sample of $\sim11000$ intermediate-redshift galaxies from the SHELS spectroscopic survey (Geller et al. 2014)…

Astrophysics of Galaxies · Physics 2019-02-20 Ivana Damjanov , H. Jabran Zahid , Margaret J. Geller , Yousuke Utsumi , Jubee Sohn , Harrison Souchereau

Scaling relations between galaxy structures and dynamics have been studied extensively for early and late-type galaxies, both in the local universe and at high redshifts. The abundant differences between the properties of disky and…

Astrophysics of Galaxies · Physics 2015-06-23 Rachel Bezanson , Marijn Franx , Pieter van Dokkum

We investigate the growth of massive quiescent galaxies at $z<0.6$ based on the Sloan Digital Sky Survey and the Smithsonian Hectospec Lensing Survey---two magnitude limited spectroscopic surveys of high data quality and completeness. Our…

Astrophysics of Galaxies · Physics 2019-08-07 H. Jabran Zahid , Margaret J. Geller , Ivana Damjanov , Jubee Sohn

Massive compact systems at 0.2<z<0.6 are the missing link between the predominantly compact population of massive quiescent galaxies at high redshift and their analogs and relics in the local volume. The evolution in number density of these…

Astrophysics of Galaxies · Physics 2015-06-19 Ivana Damjanov , Ho Seong Hwang , Margaret J. Geller , Igor Chilingarian

We examine the relation between stellar mass and central stellar velocity dispersion-the M-sigma relation-for massive quiescent galaxies at z<0.7. We measure the local relation from the Sloan Digital Sky Survey and the intermediate redshift…

Astrophysics of Galaxies · Physics 2016-12-14 H. Jabran Zahid , Margaret Geller , Daniel Fabricant , Ho Seong Hwang

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 have studied the evolution of high redshift quiescent galaxies over an effective area of ~1.7 deg^2 in the COSMOS field. Galaxies have been divided according to their star-formation activity and the evolution of the different populations…

The size-mass galaxy distribution is a key diagnostic for galaxy evolution. Massive compact galaxies are potential surviving relics of a high-redshift phase of star formation. Some of these could be nearly unresolved in SDSS imaging and…

Astrophysics of Galaxies · Physics 2020-12-08 Ivan K. Baldry , Tricia Sullivan , Raffaele Rani , Sebastian Turner

We examine the relation between stellar mass, velocity dispersion, size, S\'ersic index and $D_n4000$ for ~40,000 quiescent galaxies in the SDSS. At a fixed stellar mass, galaxies with higher $D_n4000$ have larger velocity dispersions and…

Astrophysics of Galaxies · Physics 2017-05-31 H. Jabran Zahid , Margaret J. Geller

We present the stellar mass profiles of 147 isolated quiescent galaxies in very low-density environments (i.e., void regions) in the local Universe ($0.01<z<0.06$) from the Sloan Digital Sky Survey. These galaxies have stellar masses…

Astrophysics of Galaxies · Physics 2018-07-25 Moein Mosleh , Saeed Tavasoli , Sandro Tacchella

We use the stellar-mass-selected catalog from the Spitzer Large Area Survey with Hyper-Suprime-Cam (SPLASH) in the COSMOS field to study the environments of galaxies via galaxy density and clustering analyses up to $z \sim 2.5$. The…

We present stellar rotation curves and velocity dispersion profiles for 104 quiescent galaxies at $z=0.6-1$ from the Large Early Galaxy Astrophysics Census (LEGA-C) spectroscopic survey. Rotation is typically probed across 10-20kpc, or to…

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