Results 21 to 30 of about 70,641 (273)
Spectroscopy of Blue Compact Galaxies [PDF]
Astronomische Nachrichten, 1997 AbstractBlue Compact Galaxies (BCGs) are gas‐rich systems undergoing very massive starburst events which involve the entire galaxy. We performed a spectroscopic study of 12 BCG in order to determine metallicities and helium content. Some objects show presence of broadened emission lines, probably due to internal motion of the interstellar medium ...
ESPOSITO A. A. M. +2 more
openaire +2 more sources
The Astrophysical Journal, 2023 We study the recent star formation histories (SFHs) of 575 intermediate-mass galaxies (IMGs, 10 ^9 ≤ M / M _⊙ ≤ 10 ^10 ) in COSMOS at 0.3 < z < 0.4 by comparing their H α and UV luminosities.
Shannon G. Patel +4 more
doaj +1 more source
Deep Multi-object Spectroscopy to Enhance Dark Energy Science from LSST [PDF]
, 2019 Community access to deep (i ~ 25), highly-multiplexed optical and near-infrared multi-object spectroscopy (MOS) on 8-40m telescopes would greatly improve measurements of cosmological parameters from LSST.
Blazek, Jonathan +18 more
core +3 more sources
Galaxies Probing Galaxies at High Resolution: Co-Rotating Gas Associated with a Milky Way Analog at z=0.4 [PDF]
, 2015 We present results on gas flows in the halo of a Milky Way-like galaxy at z=0.413 based on high-resolution spectroscopy of a background galaxy. This is the first study of circumgalactic gas at high spectral resolution towards an extended background ...
Coil, Alison L. +7 more
core +3 more sources
Integrated field spectroscopy of E+A (post-starburst) galaxies with the Kyoto3DII [PDF]
, 2008 We have performed a two-dimensional spectroscopy of three nearby E+A (post-starburst) galaxies with the Kyoto3DII integral field spectrograph. In all the cases, Hdelta absorption is stronger at the centre of the galaxies, but significantly extended in a ...
Goto, Tomotsugu +5 more
core +1 more source
Size and Spectroscopic Evolution of HectoMAP Quiescent Galaxies
The Astrophysical Journal, 2023 The HectoMAP survey provides a complete, mass-limited sample of 30,231 quiescent galaxies with i -band Hyper Suprime-Cam Subaru Strategic Program (HSC SSP) imaging that spans the redshift range 0.2 < z < 0.6.
Ivana Damjanov +4 more
doaj +1 more source
The DESI PRObabilistic Value-added Bright Galaxy Survey (PROVABGS) Mock Challenge
The Astrophysical Journal, 2023 The PRObabilistic Value-added Bright Galaxy Survey (PROVABGS) catalog will provide measurements of galaxy properties, such as stellar mass ( M _* ), star formation rate (SFR), stellar metallicity ( Z ), and stellar age ( t _age ), for >10 million ...
ChangHoon Hahn +18 more
doaj +1 more source
3D Spectroscopy of Dwarf Elliptical Galaxies [PDF]
EAS Publications Series, 2011 I present some results of 3D spectroscopy for a small sample of dwarf elliptical galaxies, mostly members of small groups. The galaxies under consideration have a typical absolute magnitude of -18 (B-band), and at the Kormendy's relation they settle within a transition zone between the main cloud of giant ellipticals and the sequence of diffuse ...
openaire +2 more sources
Multiwavelength Observations of the Second Largest Known FR II Radio Galaxy, NVSS 2146+82 [PDF]
, 2000 We present multi-frequency VLA, multicolor CCD imaging, optical spectroscopy, and ROSAT HRI observations of the giant FR II radio galaxy NVSS 2146+82. This galaxy, which was discovered by the NRAO VLA Sky Survey (NVSS), has an angular extent of nearly 20'
Alan H. Bridle +20 more
core +2 more sources
CLASSY. VI. The Density, Structure, and Size of Absorption-line Outflows in Starburst Galaxies
The Astrophysical Journal, 2023 Galaxy formation and evolution are regulated by the feedback from galactic winds. Absorption lines provide the most widely available probe of winds.
Xinfeng Xu +14 more
doaj +1 more source