MASSIVE GALAXIES ARE LARGER IN DENSE ENVIRONMENTS: ENVIRONMENTAL DEPENDENCE OF MASS–SIZE RELATION OF EARLY-TYPE GALAXIES
نویسندگان
چکیده
منابع مشابه
Evidence of boosted CO/CO ratio in early-type galaxies in dense environments
We present observations of CO(1–0) in 17 Combined Array for Research in Millimeter Astronomy (CARMA) ATLAS early-type galaxies (ETGs), obtained simultaneously with CO(1–0) observations. The CO in six ETGs is sufficiently bright to create images. In these 6 sources, we do not detect any significant radial gradient in the CO/CO ratio between the nucleus and the outlying molecular gas. Using the C...
متن کاملEvidence of boosted 13CO/12CO ratio in early-type galaxies in dense environments
We present observations of 13CO(1–0) in 17 Combined Array for Research in Millimeter Astronomy ATLAS3D early-type galaxies (ETGs), obtained simultaneously with 12CO(1–0) observations. The 13CO in six ETGs is sufficiently bright to create images. In these six sources, we do not detect any significant radial gradient in the 13CO/12CO ratio between the nucleus and the outlying molecular gas. Using...
متن کاملEvolution in the Color–magnitude Relation of Early–type Galaxies in Clusters of Galaxies
We present a study of the color evolution of elliptical and S0 galaxies in six clusters of galaxies inside the redshift range 0.78 < z < 1.27. For each cluster, we used imaging from the Hubble Space Telescope to determine morphological types of the galaxies. These types were determined both by an automated technique and from visual inspection. We performed simulations to determine the accuracy ...
متن کاملAssembly Pathways and the Growth of Massive Early-Type Galaxies
Based on data from the SAGES Legacy Unifying Globulars and GalaxieS (SLUGGS) survey, I present results on the assembly pathways, dark matter content and halo growth of massive early-type galaxies. Using galaxy starlight information we find that such galaxies had an early dissipative phase followed by a second phase of halo growth from largely minor mergers (and in rare cases major mergers). Thu...
متن کاملFormation and Evolution of massive early-type Galaxies Dissertation
Day of oral exam "There is a theory which states that if ever anybody discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened." Summary In this thesis we study the formation and evolution of massive early-type galaxies out of pri...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2017
ISSN: 1538-4357
DOI: 10.3847/1538-4357/834/1/73