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Atmospheric regimes and trends on exoplanets and brown dwarfs

Zhang, Xi

A planetary atmosphere is the outer gas layer of a planet. Besides its scientific significance among the first and most accessible planetary layers observed from space, it is closely connected with planetary formation and evolution, surface and interior processes, and habitability of planets. Current theories of planetary atmospheres were primaril…

Local galaxies with compact cores as the possible descendants of massive compact quiescent galaxies at high redshift

Fan, Lu-Lu; Gao, Ying

In order to test a possible evolutionary scenario of high-z compact quiescent galaxies (cQGs) that they can survive as local compact cores embedded in local massive galaxies with different morphology classes, we explore the star formation histories of local compact cores according to their spectral analysis. We build a sample of 182 massive galaxi…

Co-evolution of nuclear rings, bars and the central intensity ratio of their host galaxies

Ravikumar, C. D.; Aswathy, S.

Using a sample of 13 early-type spiral galaxies hosting nuclear rings, we report remarkable correlations between the properties of the nuclear rings and the central intensity ratio (CIR) of their host galaxies. The CIR, a function of intensity of light within the central 1.5 and 3 arcsec region, is found to be a vital parameter in galaxy evolution…

Conditions for galaxy quenching at 0.5 < z < 2.5 from CANDELS: compact cores and environment

Gu, Qiu-Sheng; Gu, Yi-Zhou; Ge, Xue +2 more

We investigate two classes of conditions for galaxy quenching at 0.5 < z < 2.5 based on the structural scaling relations of galaxies in the five Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS) fields: the formation of a compact core and the environment. We confirm that in the entire redshift range, massive quiescent …