Journal ArticleDOI
MG and Fe absorption features in elliptical galaxies
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In this paper, Fe and Mg indices from two homogenous collections of nuclear elliptical galaxy spectra are compared with model indices. And the average giant elliptical, the [Mg/Fe] ratio exceeds that of the most metal-rich stars in the solar neighborhood by ∼ 0.2-0.3 dex.Abstract:
Fe and Mg indices from two homogenous collections of nuclear elliptical galaxy spectra are compared with model indices. In the average giant elliptical, the [Mg/Fe] ratio exceeds that of the most metal-rich stars in the solar neighborhood by ∼0.2-0.3 dex, with a large spread about this mean. This result implies a variable «enrichment effectiveness» of Type II supernovae (SNs) compared with Type Ia SNs in the evolution of ellipticals, caused perhaps by differences in star formation time scales, the initial mass function, or the amount of Fe versus Mg ejected in galactic windsread more
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The LEGA-C and SAMI galaxy surveys: quiescent stellar populations and the mass–size plane across 6 Gyr
TL;DR: In this article , the authors investigated the change in mean stellar population age and metallicity scaling relations for quiescent galaxies from intermediate redshift to low redshift using the SAMI Galaxy Survey.
Journal ArticleDOI
Dynamics of Galaxy Merging and the Origin of the Color-Magnitude Relation of Elliptical Galaxies
Kenji Bekki,Yasuhiro Shioya +1 more
TL;DR: In this article, the origin of the color-magnitude (C-M) relation of elliptical galaxies was investigated and the dependence of the mean stellar metallicity of merger remnants on the rapidity of gas consumption by star formation during merging was investigated.
Journal ArticleDOI
A Synthesis of Data from Fundamental Plane and Surface Brightness Fluctuation Surveys
TL;DR: In this article, a series of comparisons between distance-independent photometric and spectroscopic properties used in the surface brightness fluctuations (SBF) and fundamental plane (FP) methods of early-type galaxy distance estimation are performed.
Dissertation
Spectral analysis of galaxies in the ultraviolet
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Journal ArticleDOI
Chemically distinct nuclei and circumnuclear rings in lenticular galaxies NGC 4429 and NGC 7013
TL;DR: In this paper, the central regions of the regular lenticular galaxies NGC 4429 and NGC 7013 have been studied with the Multi-Pupil Field (Fiber) Spectrograph (MPFS) of the 6 m telescope of the Special Astrophysical Observatory RAS (Nizhnij Arkhyz, Russia) in two spectral ranges, the blue one including the strong absorption lines Mg I and Fe I and the red one including emission lines H and (N II)6583.