Results 51 to 60 of about 24,234 (169)
Astronomy & AstrophysicsContext. Group environments are thought to play a key role in shaping galaxy evolution prior to cluster accretion. However, direct observational evidence linking group–cluster interactions to the transformation of low-mass galaxies remains scarce.
Aguerri J. Alfonso L. +3 more
doaj +1 more source
The Draco Dwarf Spheroidal Galaxy in the First Year of Dark Energy Spectroscopic Instrument Data
The Astrophysical JournalWe investigate the spatial distribution, kinematics, and metallicity of stars in the Draco dwarf spheroidal galaxy using data from the Dark Energy Spectroscopic Instrument (DESI).
J. Ding +42 more
doaj +1 more source
Reionization of the Local Group of galaxies [PDF]
, 2010 This study was supported in part by Swiss National Science Foundation grant 200021-116696/1 and Swedish Research Council grant 60336701. GY acknowledges support of MICINN (Spain) through research grants FPA2009-08958, AYA2009-13875-C03-02 and CONSOLIDER-INGENIO SyEC (CSD2007.0050). YH has been partially supported by the ISF (13/08)
Iliev, I T +5 more
openaire +3 more sources
Satellite galaxies in nearby groups of galaxies
, 2015 We analyse distribution, kinematics and star-formation (SF) properties of satellite galaxies in three different samples of nearby groups. We find that studied groups are generally well approximated by low-concentration NFW model, show a variety of LOS velocity dispersion profiles and signs of SF quenching in outskirts of dwarf satellite galaxies.
Vennik, J., Hopp, U.
openaire +2 more sources
Connecting clustering and the cosmic web
Astronomy & AstrophysicsContext. Cosmological simulations predict significant secondary dependences of halo clustering on a variety of internal halo properties, and on environmental factors.
Rodriguez Facundo +1 more
doaj +1 more source
The Luminosity Function in Groups of Galaxies [PDF]
EAS Publications Series, 2011 4 pages, 4 figures.
openaire +2 more sources
Astronomy & AstrophysicsWe present a spatially resolved multiwavelength study of the compact galaxy group Robert’s Quartet (RQ; SCG0018-4854), aimed at understanding interaction-driven galaxy evolution in dense environments.
Keshri Saili +3 more
doaj +1 more source
Star Formation Histories with Gaia: The Galaxy and Beyond
Open Astronomy, 2003 ESA’s Gaia mission will provide accurate astrometric, photometric and spectroscopic data for millions of stars in the Galaxy and beyond. We discuss the prospects of using this vast amount of astrophysical information for understanding star formation ...
Kučinskas A. +3 more
doaj +1 more source
GALAXY GROUPS: A 2MASS CATALOG [PDF]
The Astronomical Journal, 2015 Accepted for publication in Astronomical Journal. Tables 3-5 will be available with on-line publication of journal. The large Table 5 is available as 2 tables (north and south galactic hemispheres separately) at the Extragalactic Distance Database (http://edd.ifa.hawaii.edu), catalogs 2MRS1175 North/South ...
openaire +2 more sources
A Merger within a Merger: Chandra Pinpoints the Short GRB 230906A in a Peculiar Environment
The Astrophysical Journal LettersWe report the precise X-ray localization of GRB 230906A, a short-duration ( T _90 ∼ 0.9 s) gamma-ray burst (GRB) with no optical or radio counterpart.
S. Dichiara +8 more
doaj +1 more source