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Related papers: Early-type galaxy density profiles from IllustrisT…

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We use stellar masses, photometry, lensing, and velocity dispersions to investigate empirical correlations for the final sample of 73 early-type lens galaxies (ETGs) from the SLACS survey. The traditional correlations (Fundamental Plane…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 M. W. Auger , T. Treu , A. S. Bolton , R. Gavazzi , L. V. E. Koopmans , P. J. Marshall , L. A. Moustakas , S. Burles

We apply the Jeans Anisotropic MGE (JAM) dynamical modelling method to SAGES Legacy Unifying Globulars and GalaxieS (SLUGGS) survey data of early-type galaxies in the stellar mass range $10^{10}<M_*/{\rm M}_{\odot}<10^{11.6}$ that cover a…

This paper aims at understanding if the normalization of the stellar initial mass function (IMF) of massive early-type galaxies (ETGs) varies with cosmic time and/or with mean stellar mass density Sigma (M*/2\pi Re^2). For this purpose we…

Astrophysics of Galaxies · Physics 2015-01-14 A. Gargiulo , P. Saracco , M. Longhetti , S. Tamburri , I. Lonoce , F. Ciocca

The characteristic size of early-type galaxies (ETGs) of given stellar mass is observed to increase significantly with cosmic time, from redshift z>2 to the present. A popular explanation for this size evolution is that ETGs grow through…

Astrophysics of Galaxies · Physics 2019-08-14 C. Nipoti , T. Treu , M. W. Auger , A. S. Bolton

We present a 1.4 GHz Karl G. Jansky Very Large Array (VLA) study of a sample of early-type galaxies (ETGs) from the volume- and magnitude-limited ATLAS-3D survey. The radio morphologies of these ETGs at a resolution of 5" are diverse and…

(abridged) Context. Gravitational fields at the outskirts of early-type galaxies (ETGs) are difficult to constrain observationally. It thus remains poorly explored how well the LCDM and MOND hypotheses agree with ETGs. Aims. This led us to…

Astrophysics of Galaxies · Physics 2019-05-08 Michal Bílek , Srdjan Samurović , Florent Renaud

We provide a census of the apparent stellar angular momentum within 1 Re of a volume-limited sample of 260 early-type galaxies (ETGs) in the nearby Universe, using integral-field spectroscopy obtained in the course of the ATLAS3D project.…

The Fundamental Plane relates the structural properties of early-type galaxies such as its surface brightness and effective radius with its dynamics. The study of its evolution has therefore important implications for models of galaxy…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 M. Fernández Lorenzo , J. Cepa , A. Bongiovanni , A. M. Pérez García , A. Ederoclite , M. A. Lara-López , M. Pović , M. Sánchez-Portal

The goal of this work is to probe the total mass distribution of early-type galaxies with globular clusters (GCs) as kinematic tracers, by constraining the parameters of the profile with a flexible modelling approach. To that end, we…

Astrophysics of Galaxies · Physics 2024-01-10 Tadeja Veršič , Sabine Thater , Glenn van de Ven , Laura L. Watkins , Prashin Jethwa , Ryan Leaman , Alice Zocchi

We perform spatially resolved stellar population analysis for a sample of 69 early-type galaxies (ETGs) from the CALIFA integral field spectroscopic survey, including 48 ellipticals and 21 S0's. We generate and quantitatively characterize…

We analyse the extended, ionized-gas emission of 24 early-type galaxies (ETGs) at $0<z<1$ from the ESO Distant Cluster Survey (EDisCS). We discuss different possible sources of ionization and favour star-formation as the main cause of the…

The origin of diverse kinematic morphologies observed in low-mass galaxies is unclear. In this study, we investigate the kinematic morphologies of central galaxies with stellar mass $10^{8.5-9.0} M_\odot$ at $z=0$ in the TNG50-1…

Astrophysics of Galaxies · Physics 2024-07-04 Guangquan Zeng , Lan Wang , Liang Gao , Hang Yang

In order to explore how the early internal rotational properties of star clusters are affected by the external potential of their host galaxies, we have run a suite of $N$-body simulations following the early dynamical evolution and violent…

Astrophysics of Galaxies · Physics 2022-03-30 Maria Tiongco , Enrico Vesperini , Anna Lisa Varri

The hypothesis of a universal initial mass function (IMF) -- motivated by observations in nearby stellar systems -- has been recently challenged by the discovery of a systematic variation of the IMF with the central velocity dispersion,…

Observed and simulated galaxies exhibit a significant variation in their velocity dispersion profiles. We examine the inner and outer slopes of stellar velocity dispersion profiles using integral field spectroscopy data from two surveys,…

By exploting the data of three large surveys (WINGS, NFPS and SDSS), we present here a comparative analysis of the Fundamental Plane (FP hereafter) of the early-type galaxies (ETGs) belonging to 59 galaxy clusters in the redshift range…

To enhance our understanding of the impact of galaxy mergers on the kinematics of early-type galaxies (ETGs), we examine differences in specific stellar angular momentum within the half-light radius ($\lambda_{R_e}$) among ETGs with…

Astrophysics of Galaxies · Physics 2024-04-05 Yongmin Yoon , Jongwan Ko , Haeun Chung , Woowon Byun , Kyungwon Chun

[Abridged]We present the morphological analysis based on HST-NICMOS observations in the F160W filter of a sample of 32 early-type galaxies (ETGs) at 1<z<2 with spectroscopic confirmation of their redshift and spectral type. We find that…

Astrophysics · Physics 2009-11-13 P. Saracco , M. Longhetti , S. Andreon

We introduce our project that investigates the kinematic properties of early-type galaxies in 6 distant poor clusters at z~0.25. This study represents a continuation of our efforts to understand galaxy evolution in low-density environments.…

Astrophysics · Physics 2009-11-10 Alexander Fritz , Bodo L. Ziegler

We study the X-ray properties of 393 optically selected early-type galaxies (ETGs) over the redshift range of z~0.0-1.2 in the Chandra Deep Fields. To measure the average X-ray properties of the ETG population, we use X-ray stacking…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 A. L. R. Danielson , B. D. Lehmer , D. M. Alexander , W. N. Brandt , B. Luo , N. Miller , Y. Q. Xue , J. P. Stott
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