A. M. KoekemoerH. AusselMancini C., Daddi E., Renzini A. et al, (2010), High-redshift elliptical galaxies: are they (all) really compact?, MNRAS Vol. 401 Number 2, pp 993-940(8), arXiv:0909.3088v1, DOI:10.1111/j.1365- 2966.2009.15728.x...
Because star-forming activity in many giant ellipticalgalaxieshas shut down to very low levels, these galaxies mostly house long-livedstarswith low masses and red optical colors. Astronomers have therefore called these galaxies "red and dead." Previously it was thought that these red and dead gala...
We report the discovery of actively star-forming elliptical galaxies in a morphologically classified sample of bright galaxies at a low redshift obtained from the Sloan Digital Sky Survey. The emission lines of these galaxies do not show the characteristics of active galactic nuclei, and thus their...
TO APPEAR IN THE ASTROPHYSICAL JOURNAL LETTERS Preprint typeset using L ATEX style emulateapj v. 14/09/00 HYPER EXTREMELY RED OBJECTS IN THE SUBARU DEEP FIELD: EVIDENCE FOR PRIMORDIAL ELLIPTICAL GALAXIES IN THE DUSTY STARBURST PHASE ∗
which can be a few percent of the mean surface brightness for the nearest galaxies like M31 and M32, arise from Poisson statistical fluctuations in the number of stars per seeing disk. Historically, this effect was known as “incipient resolution.” In the modern context, they are calle...
[Abridged] We study the spectral properties of intermediate mass galaxies as a function of colour and morphology. We use Galaxy Zoo to define three morphological classes of galaxies, namely early-types (ellipticals), late-type (disk-dominated) face-on sp
Elliptical Galaxy Gallery: Black Holes Stir Up GalaxiesEducation
-redshift galaxies, and the observed properties of galaxies in the redshift range z between 0 and 1, suggests either that ellipticals form at moderate redshifts, where a large initial burst of star formation is shrouded by dust, or that they form through the merging of smaller galaxies....
Presents research which suggests either that elliptical galaxies form at moderate redshifts, or that they form through the merging of smaller galaxies. Predictions about number of elliptical galaxies as a function of redshift; Traditional views of formation of elliptical galaxies; Use of deep optical...
The correlation between the Mg absorption index and the velocity dispersion (σ) of local elliptical galaxies is very tight. Because the Mg absorption depends on both metallicity and age of the underlying stellar population the observed Mg—σ relation constrains the possible variation in metallicity ...