Results 31 to 40 of about 1,957 (169)
Odessa Astronomical Publications, 2019 We present a study on the verifica- tion of Machine Learning methods to be applied for binary morphological classification of galaxies. With this aim we used the sample of 60561 galaxies from the SDSSDR9 survey with a redshift of 0 . 02 < z < 0 .
M. Yu. Vasylenko +4 more
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The Astrophysical JournalE+A galaxies represent a class of recently quenched objects, with spectra that show evidence of a previous substantial starburst and strong Balmer absorption lines indicative of A-type stellar populations.
Eric Ludwig +5 more
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The Kinematic Bimodality: Efficient Feedback and Cold Gas Deficiency in Slow-rotating Galaxies
The Astrophysical Journal Letters, 2023 The bimodality in the stellar spin of low-redshift (massive) galaxies, ubiquitously existing at all star formation levels and in diverse environments, suggests that galaxies grow and quench through two diverged evolutionary pathways.
Bitao Wang, Yingjie Peng
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Sensitive Search For HI in E and SO Galaxies [PDF]
Symposium - International Astronomical Union, 1983 Do elliptical and SO galaxies in which type I supernovae (SNI) were detected contain more gas than those without SNI detections? Thirteen E and SO galaxies in the Virgo and Pegasus I clusters, seven with SNI detections and six without, were mapped well beyond the optical image at the 21-cm neutral hydrogen line. No HI was detected.
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Quantitative Morphology and Color Gradients of E+A Galaxies in Distant Galaxy Clusters [PDF]
, 1997 Narrow band multifilter photometry of the galaxy populations of four galaxy clusters at z=0.4-0.5 has provided us with a sample of 73 E+A galaxies which are secure cluster members. For 34 of them HST images are available (WFPC2). We have determined surface brigthness profiles and by means of an exponential or r^1/4 law fit we have classified the ...
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Are Cooling Flows Governing E-Galaxy Evolution? [PDF]
Symposium - International Astronomical Union, 1987 Gas accretion of intra cluster gas into the potential well of giant elliptical or cD galaxies can provide the material for both nuclear non-thermal activity and continuous, probably low mass, star formation (Fabian et al. 1982, Valentijn and Bijleveld 1983).
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The Astrophysical JournalPoststarburst galaxies are believed to be in a rapid transition between major merger starbursts and quiescent ellipticals, where active galactic nucleus (AGN) feedback is suggested as one of the processes responsible for the quenching.
Dalya Baron +4 more
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Equilibrium Figures inside the Dark-Matter Ring and the Shapes of Elliptical Galaxies
Open Astronomy, 2015 We solve the general problem of the theory of equilibrium figures and analyze two classes of liquid rotating gravitating figures residing inside a gravitating ring or torus.
Kondratyev B. P. +2 more
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Low-surface-brightness Galaxies are Missing in the Observed Stellar Mass Function
The Astrophysical Journal, 2023 We investigate the impact of the surface-brightness (SB) limit on the galaxy stellar mass functions (GSMFs) using galaxy catalogs generated from the Horizon Run 5 ( HR5 ) simulation.
Juhan Kim +10 more
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The Astrophysical JournalOutflows and jets launched from the nuclei of galaxies emit radio synchrotron emission that can be used to study the impact of accretion energy on the host galaxy.
K. Decker French +9 more
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