Results 81 to 90 of about 510,650 (316)
Are Red Tidal Features Unequivocal Signatures of Major Dry Mergers? [PDF]
, 2006 We use a cosmological numerical simulation to study the tidal features produced by a minor merger with an elliptical galaxy. We find that the simulated tidal features are quantitatively similar to the red tidal features, i.e., dry tidal features ...
Brad K. Gibson +7 more
core +2 more sources
On the distribution of galaxy ellipticity in clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 14 pages, 11 figures, Accepted for publication in ...
Rebecca Davies +4 more
openaire +5 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
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
, 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
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
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.
openaire +4 more sources
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
New Arabic Records From Cairo on Supernovae 1181 and 1006
Astronomische Nachrichten, EarlyView.ABSTRACT The remnant of the historical supernova SN 1181 is under discussion: While the previously suggested G130.7+3.1 (3C58) appears too old (3000–5000 year), the unusual star IRAS00500+6713 with a surrounding nebula (Pa‐30) has an expansion age not inconsistent with a SN Iax explosion in ad 1181 under the assumption that neither acceleration nor ...
J. G. Fischer +3 more
wiley +1 more source