Results 71 to 80 of about 402,684 (314)
APOGEE Chemical Abundances of the Sagittarius Dwarf Galaxy [PDF]
, 2017 The Apache Point Observatory Galactic Evolution Experiment provides the opportunity of measuring elemental abundances for C, N, O, Na, Mg, Al, Si, P, K, Ca, V, Cr, Mn, Fe, Co, and Ni in vast numbers of stars.
S. Hasselquist +28 more
semanticscholar +1 more source
NIHAO XV: the environmental impact of the host galaxy on galactic satellite and field dwarf galaxies [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We study the impact of the host on dwarf galaxy properties using four new Milky Way-like, ultra high-resolution simulations, ($N_{\rm part} >10^7$) from the NIHAO project. We split our sample in satellite ($R 2.5 R_{\rm 200}$) galaxies.
T. Buck +4 more
semanticscholar +1 more source
From tidal dwarf galaxies to satellite galaxies [PDF]
Astronomy & Astrophysics, 2006 Accepted for publication in A&A. Shortened abstract below, full version in the paper.
Bournaud, Frédéric, Duc, Pierre-Alain
openaire +4 more sources
Discovery of Diffuse Dwarf Galaxy Candidates around M101 [PDF]
, 2017 We have conducted a search of a 9 deg2 region of the Canada–France–Hawaii-Telescope Legacy Survey around the Milky Way analog M101 (D ∼ 7 Mpc), in order to look for previously unknown low-surface-brightness galaxies.
P. Bennet +7 more
semanticscholar +1 more source
R-process enrichment from a single event in an ancient dwarf galaxy [PDF]
Nature, 2015 Elements heavier than zinc are synthesized through the rapid (r) and slow (s) neutron-capture processes. The main site of production of the r-process elements (such as europium) has been debated for nearly 60 years.
A. Ji, A. Frebel, A. Chiti, J. Simon
semanticscholar +1 more source
ANGULAR MOMENTUM OF DWARF GALAXIES [PDF]
The Astrophysical Journal Letters, 2016 ABSTRACT We present measurements of baryonic mass and specific angular momentum (sAM) in 14 rotating dwarf Irregular (dIrr) galaxies from the LITTLE THINGS sample.
Kirsty M. Butler +2 more
openaire +2 more sources
, 2010 Two 5 square degree regions around the NGC 7332/9 galaxy pair and the isolated galaxy NGC 1156 have been mapped in the 21-cm line of neutral hydrogen (HI) with the Arecibo L-band Feed Array out to a redshift of ~0.065$ (~20,000$ km/s) as part of the ...
Aldering +42 more
core +3 more sources
Dust Streamers in the Virgo Galaxy M86 from Ram Pressure Stripping of its Companion VCC 882 [PDF]
, 2000 The giant elliptical galaxy M86 in Virgo has a ~28 kpc long dust trail inside its optical halo that points toward the nucleated dwarf elliptical galaxy, VCC 882. The trail seems to be stripped material from the dwarf. Extinction measurements suggest that
Bender R. +17 more
core +2 more sources
The Herschel Dwarf Galaxy Survey - I. Properties of the low-metallicity ISM from PACS spectroscopy [PDF]
, 2015 Context. The far-infrared (FIR) lines are important tracers of the cooling and physical conditions of the interstellar medium (ISM) and are rapidly becoming workhorse diagnostics for galaxies throughout the universe.
D. Cormier +20 more
semanticscholar +1 more source
An Accreting Supermassive Black Hole Buried in a Faint Dwarf Galaxy
The Astrophysical Journal LettersIn the last decade, there have been several discoveries of active galactic nuclei (AGN) in dwarf galaxies including an AGN in an ultracompact dwarf galaxy with a black hole mass >10 ^6 M _⊙ .
Abhishek Paswan, Mousumi Das, K Rubinur
doaj +1 more source