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The 2Mass Color-magnitude Diagram of the Center of the Sagittarius Dwarf Galaxy: Photometric Measurements of a Surprisingly High Mean Metallicity
abundances stellar
2014/12/23
We present the Two Micron All Sky Survey (2MASS) (J−K, K) color-magnitude diagram for the region within 1◦ of the center of the Sagittarius dwarf spheroidal galaxy. Using the slope of the ...
GRB091127/SN2009nz and the VLT/X-shooter spectroscopy of its host galaxy: probing the faint end of the mass-metallicity relation
Gamma-rays bursts: individual: GRB091127 – supernovae: individual: SN2009nz – Galaxies: ISM– Galaxies: evolution
2011/10/12
We perform a detailed study of the gamma-ray burst GRB091127/SN2009nz host galaxy at z=0.490 using the VLT/X-shooter spectrograph in slit and integral-field unit (IFU). From the analysis of the optica...
Spectra of globular clusters in the Sombrero galaxy: evidence for spectroscopic metallicity bimodality
globular clusters: general galaxies: individual: Sombrero (M104: NGC4594) galaxies: star clusters
2011/9/28
We present a large sample of over 200 integrated-light spectra of confirmed globular clusters (GCs) associated with the Sombrero (M104) galaxy taken with the DEIMOS instrument on the Keck telescope. A...
The Metallicity Evolution of Interacting Galaxies
Metallicity Evolution Interacting Galaxies
2011/9/26
Nuclear inflows of metal-poor interstellar gas triggered by galaxy interactions can account for the systematically lower central oxygen abundances observed in local interacting galaxies. Here, we inve...
Metallicity gradient and the hybrid formation scenario for early-type galaxies
Metallicity gradient hybrid formation scenario early-type galaxies
2009/6/26
Metallicity gradient and the hybrid formation scenario for early-type galaxies。
The Effect of Binarity and Metallicity in the Spectra of WC and WO Stars
Binarity Metallicity Spectra of WC WO Stars
2009/6/11
The Effect of Binarity and Metallicity in the Spectra of WC and WO Stars。
A comprehensive study of high-metallicity giant extragalactic H II regions：ionizing populations
high-metallicity giant extragalactic H II regions ionizing populations
2009/6/11
A comprehensive study of high-metallicity giant extragalactic H II regions：ionizing populations。