Dissecting the size evolution of elliptical galaxies since z∼ 1: puffing-up versus minor-merging scenarios [PDF]
Monthly Notices of the Royal Astronomical Society, 2011 At a fixed stellar mass, the size of low-redshift early-type galaxies is found to be a factor of 2 larger than that of their counterparts at z∼ 1, a result with important implications for galaxy formation models.
Ignacio Trujillo +2 more
exaly +2 more sources
STRUCTURE AND FORMATION OF ELLIPTICAL AND SPHEROIDAL GALAXIES [PDF]
The Astrophysical Journal Supplement Series, 2008 New surface photometry of all known elliptical galaxies in the Virgo cluster is combined with published data to derive composite profiles of brightness, ellipticity, position angle, isophote shape, and color over large radius ranges. These provide enough
J. Kormendy +3 more
semanticscholar +5 more sources
Sizes and Mass Profiles of Candidate Massive Galaxies Discovered by JWST at 7 < z < 9: Evidence for Very Early Formation of the Central ∼100 pc of Present-day Ellipticals [PDF]
Astrophysical Journal Letters, 2023 The first JWST data revealed an unexpected population of red galaxies that appear to have redshifts of z ∼ 7–9 and high masses of M * ≳ 1010 M ☉. Here we fit Sérsic profiles to the F200W NIRCam images of the 13 massive galaxy candidates of Labbé et al ...
Josephine F. W. Baggen +10 more
semanticscholar +1 more source
Constraining theories of gravity by fundamental plane of elliptical galaxies [PDF]
, 2020 We show that fundamental plane of elliptical galaxies can be used to obtain observational constraints on metric theories of gravity. Being it connected to global properties of ellipticals, it can fix parameters of modified gravity.
S. Capozziello +3 more
semanticscholar +1 more source
The Relationship between Slope and Luminosity [PDF]
Kirkuk Journal of Science, 2010 In this study, a sample of galaxies has been adopted. It consists of 112 elliptical galaxies, among them were 56 dwarf elliptical galaxies, which belong to virgo cluster, 37 normal galaxies and 19 bright galaxies. Also, surface brightness profiles fitted
Mohsen H. Ali AL-Khafajy
doaj +1 more source
Deviations of the Surface Brightness Distribution in Isolated Elliptical Galaxies [PDF]
مجلة التربية والعلم, 2012 In this paper, we present the surface brightness profiles of 48 isolated elliptical galaxies. we have adopted the r1/n – law to the observed surface brightness profiles of the adopted sample of isolated elliptical galaxies for the intermediate radial ...
Omar Salih
doaj +1 more source
AGN feedback and multiphase gas in giant elliptical galaxies [PDF]
Monthly notices of the Royal Astronomical Society, 2018 Recent observations have found extended multi-phase gas in a significant fraction of massive elliptical galaxies. We perform high-resolution three-dimensional hydrodynamical simulations of two idealized elliptical galaxies -- one representing a typical ...
Chaoran Wang, Yuan Li, M. Ruszkowski
semanticscholar +1 more source
The colours of elliptical galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 13 pages, 8 figures, accepted by ...
Chang, R. +6 more
openaire +3 more sources
The Astrophysical Journal, 2023 The mechanism by which galaxies stop forming stars and get rid of their interstellar medium (ISM) remains elusive. Here, we study a sample of more than 2000 elliptical galaxies in which dust emission has been detected.
Aleksandra Leśniewska +6 more
doaj +1 more source
Why there are no elliptical galaxies more flattened than E7: Thirty years later [PDF]
Serbian Astronomical Journal, 2006 Elliptical galaxies are modeled as homeoidally striated Jacobi ellipsoids (Caimmi and Marmo 2005) where the peculiar velocity distribution is anisotropic, or equivalently as their adjoint configurations i.e.
Caimmi R.
doaj +1 more source