Results 71 to 80 of about 514,316 (314)
The Origin of Star Formation in Early-type Galaxies Inferred from Spatially Resolved Spectroscopy
The Astrophysical Journal, 2023 We investigate the origin of star formation activity in early-type galaxies with current star formation using spatially resolved spectroscopic data from the Mapping Nearby Galaxies at Apache Point Observatory in the Sloan Digital Sky Survey (SDSS).
Yun Hee Lee +4 more
doaj +1 more source
Elliptical Galaxies with Emission Lines from the Sloan Digital Sky Survey
, 2005 We present the results of 11 elliptical galaxies with strong nebular emission lines during our study of star formation history along the Hubble sequence. After removing the dilution from the underlying old stellar populations by use of stellar population
Barger A J +34 more
core +1 more source
Stable models of elliptical galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 26 ...
Gerhard Rein, Yan Guo
openaire +4 more sources
The Astrophysical Journal Supplement Series, 2023 We investigate the roles of major and minor mergers during brightest cluster galaxy (BCG) assembly using surface brightness profiles, line indices, and fundamental plane relations.
Matthias Kluge, Ralf Bender
doaj +1 more source
Galaxies, 2023 In April 2019, the Event Horizon Telescope (EHT) Collaboration successfully imaged a supermassive black hole (SMBH) for the first time, revealing the apparent “shadow” cast by the dark compact object M87* in the center of the elliptical galaxy Virgo A [..
Michael D. Johnson +3 more
doaj +1 more source
Giant Halos in Dwarf Irregular Galaxies vs. Dwarf Elliptical Galaxies
, 2005 We present a discovery of a giant stellar halo in NGC 6822, a dwarf irregular galaxy in the Local Group. This halo is mostly made of old red giants, showing striking features: 1) it is several times larger than the main body of the galaxy seen in the ...
Hwang, Narae, Lee, Myung Gyoon
core +1 more source
Weak homology of elliptical galaxies [PDF]
Astronomy & Astrophysics, 2002 We start by studying a small set of objects characterized by photometric profiles that have been pointed out to deviate significantly from the standard R^{1/4} law. For these objects we confirm that a generic R^{1/n} law, with n a free parameter, can provide superior fits (the best-fit value of n can be lower than 2.5 or higher than 10), better than ...
Bertin, G., Ciotti, L., Del Principe, M.
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High-Resolution Observations of the Elliptical Galaxy NGC 4636 with the Reflection Grating Spectrometer on Board XMM-Newton [PDF]
, 2001 We present the first high spectral resolution X-ray observation of the giant elliptical galaxy NGC 4636, obtained with the reflection grating spectrometer on board the XMM-Newton Observatory.
H. Xu +8 more
semanticscholar +1 more source
, 2003 The Nuker law was designed to match the inner few (~3-10) arcseconds of predominantly nearby (< 30 Mpc) early-type galaxy light-profiles; it was never intended to describe an entire profile.
A. Asensio Ramos +15 more
core +1 more source
The habitability of large elliptical galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Based on numbers of stars, supernova rates, and metallicity, a prior study concluded that large elliptical galaxies contain up to 10 000 times more habitable planets than the Milky Way and are thus the ‘cradles of life’. Using the results of their model and taking into account galactic number distributions and supernova rates, I
openaire +3 more sources