Results 191 to 200 of about 954,000 (309)

Stellar Populations with MaNGA: Iron Kink and Nitrogen Fuzz

The Astrophysical Journal
Recent analysis of 2968 MaNGA early-type galaxies has yielded two notable trends with velocity dispersion ( σ ) not previously discussed in the literature. First, Fe abundance rises with σ but only until σ  ≈ 100 km s ^−1 , after which it falls.
Guy Worthey, Tathagata Pal
doaj   +1 more source

VLT/UVES Abundances in Four Nearby Dwarf Spheroidal Galaxies. II. Implications for Understanding Galaxy Evolution [PDF]

, 2003
Eline Tolstoy, Kim A. Venn, Matthew Shetrone, Francesca Primas, Vanessa Hill, Andreas Kaufer, Thomas Szeifert   +6 more
openalex   +1 more source

Investigating the Lower Limit of Metallicity for the Galactic Thin Disk

The Astrophysical Journal
We explore the metal-poor regime of the Galactic disk on the distribution of stars in the [ α /M]– V _ϕ plane, to identify the most metal-poor thin disk (MPTnD) stars belonging to the low- α sequence.
Guozhen Hu, Zhengyi Shao, Erbil Gügercinoǧlu, Wenyuan Cui   +3 more
doaj   +1 more source

Exploring the Relationship between Stellar Mass, Metallicity, and Star Formation Rate at z ∼ 2.3 in KBSS-MOSFIRE

The Astrophysical Journal
The metal enrichment of a galaxy is determined by the cycle of baryons in outflows, inflows, and star formation. The relative contribution and timescale of each process sets the relationship between stellar mass, metallicity, and the star formation rate (
Nathalie A. Korhonen Cuestas, Allison L. Strom, Tim B. Miller, Charles C. Steidel, Ryan F. Trainor, Gwen C. Rudie, Evan Haze Nuñez   +6 more
doaj   +1 more source

Chemical feature of Eu abundance in the Draco dwarf spheroidal galaxy [PDF]

, 2015
Takuji Tsujimoto, Miho N. Ishigaki, Toshikazu Shigeyama, Wako Aoki   +3 more
openalex   +1 more source

Iron Abundance Profiles of 12 Clusters of Galaxies Observed withBeppoSAX [PDF]

, 2001
Jimmy A. Irwin, Joel N. Bregman
openalex   +1 more source

Blue Supergiants in the Pinwheel Galaxy M101: Comparison with H II Region Chemical Abundances, Spectroscopic Distance, and an Independent Determination of the Hubble Constant

The Astrophysical Journal
We present a quantitative spectroscopic study of 13 blue supergiant stars in the Pinwheel Galaxy M101, based on data obtained with the Low Resolution Imaging Spectrometer available at the Keck I telescope.
Fabio Bresolin, Rolf-Peter Kudritzki, Miguel A. Urbaneja, Eva Sextl, Adam G. Riess   +4 more
doaj   +1 more source

Effects of dust abundance on the far-infrared colours of blue compact dwarf galaxies [PDF]

, 2009
Hiroyuki Hirashita, Tomohiro T. Ichikawa
openalex   +1 more source

Phosphorus-bearing molecules PO and PN at the edge of the Galaxy. [PDF]

Nature, 2023
Koelemay LA, Gold KR, Ziurys LM.
europepmc   +1 more source

The ages, metallicities and element abundance ratios of massive quenched galaxies at z~1.6 [PDF]

, 2014
Masato Onodera, C. M. Carollo, A. Renzini, Michele Cappellari, C. Mancini, N. Arimoto, E. Daddi, R. Gobat, V. Strazzullo, Sandro Tacchella, Y. Yamada   +10 more
openalex   +1 more source