Intermediate Element Abundances in Galaxy Clusters [PDF]
The Astrophysical Journal, 2003 We present the average abundances of the intermediate elements obtained by performing a stacked analysis of all the galaxy clusters in the archive of the X-ray telescope ASCA.
Arnaud M. +15 more
core +4 more sources
Extending Ultra-Diffuse Galaxy Abundances to Milky Way Analogs [PDF]
Monthly notices of the Royal Astronomical Society, 2022 We extend the Ultra-Diffuse Galaxy (UDG) abundance relation, NUDG − M200, to lower halo mass hosts (M200 ∼ 1011.6 − 12.2M⊙). We select UDG satellites from published catalogs of dwarf satellite galaxies around Milky Way analogs, namely the Exploration ...
Ananthan Karunakaran, Dennis Zaritsky
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VLT/FLAMES high-resolution chemical abundances in Sculptor: a textbook dwarf spheroidal galaxy [PDF]
Astronomy & Astrophysics, 2019 We present detailed chemical abundances for 99 red-giant branch stars in the centre of the Sculptor dwarf spheroidal galaxy, which have been obtained from high-resolution VLT/FLAMES spectroscopy.
V. Hill +14 more
openalex +3 more sources
APOGEE Chemical Abundances of the Sagittarius Dwarf Galaxy [PDF]
, 2017 The Apache Point Observatory Galactic Evolution Experiment (APOGEE) provides the opportunity to measure 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.
Almeida, Andres +25 more
core +2 more sources
Complete element abundances of nine stars in the r-process galaxy Reticulum II [PDF]
, 2016 We present chemical abundances derived from high-resolution Magellan/MIKE spectra of the nine brightest known red giant members of the ultra-faint dwarf galaxy Reticulum II.
Chiti, Anirudh +3 more
core +4 more sources
Abundance Distributions in Barred Galaxies [PDF]
International Astronomical Union Colloquium, 1996 AbstractI review the evidence for global abundance gradients in barred galaxies to be flatter when compared with those of normal galaxies. The finding that the abundance gradient becomes flatter as the strength of the bar increases, illustrates the effectiveness of radial flows induced by bars at transporting large amount of gas across galaxy disks.
Jean-René Roy
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Chemical behavior of the Dwarf Irregular Galaxy NGC 6822. Its PN and HII region abundances [PDF]
, 2009 We aim to derive the chemical behavior of a significant sample of PNe and HII regions in the irregular galaxy NGC 6822 The selected objects are distributed in different zones of the galaxy.
Allen +56 more
core +2 more sources
VLT/UVES Abundances in Four Nearby Dwarf Spheroidal Galaxies. II. Implications for Understanding Galaxy Evolution [PDF]
, 2003 We have used the Ultraviolet Visual-Echelle Spectrograph (UVES) on Kueyen (UT2) of the Very Large Telescope to take spectra of 15 individual red giant stars in the centers of four nearby dwarf spheroidal galaxies (dSph's): Sculptor, Fornax, Carina, and ...
Eline Tolstoy +6 more
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Non‐LTE Abundances and Consequences for the Evolution of the α‐Elements in the Galaxy [PDF]
, 2000 Abundances of α-elements such as Ca and Mg in disk and halo stars are usually derived from equivalent width lines measured on high-resolution spectra and assuming local thermodynamic equilibrium (LTE).
T. E. P. Idiart, Mathieu Thévenin
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Dust Formation in a Galaxy with Primitive Abundances [PDF]
Science, 2009 Interstellar dust plays a crucial role in the evolution of galaxies. It governs the chemistry and physics of the interstellar medium. In the local universe, dust forms primarily in the ejecta from stars, but its composition and origin in galaxies at very early times remain controversial.
G. Sloan +8 more
semanticscholar +5 more sources