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17 papers · 2 filters
GALEX UV Color-Magnitude Relations and Evidence for Recent Star Formation in Early-type Galaxies
S Yi, SJ Yoon, S Kaviraj +32
We have used the GALEX UV photometric data to construct a first near-ultraviolet (NUV) color-magnitude relation (CMR) for the galaxies pre-classified as early-type by SDSS studies.…
GALEX Ultraviolet Photometry of Globular Clusters in M31
S. -C. Rey, R. M. Rich, Y. -W. Lee +27
We present ultraviolet photometry for globular clusters (GCs) in M31 from 15 square deg of imaging using the Galaxy Evolution Explorer (GALEX). We detect 200 and 94 GCs with certai…
The Look-back Time Evolution of Far-UV Flux from Elliptical Galaxies: The Fornax Cluster and Abell 2670
Y. -W. Lee, C. H. Ree, R. M. Rich +30
In order to investigate the origin of the far-UV (FUV) flux from the early-type galaxies, Galaxy Evolution Explorer (GALEX) is collecting the UV data for the elliptical-rich cluste…
Infrared Photometry of NGC 6791
Bruce W. Carney, Jae-Woo Lee, Benjamin Dodson
We present deep JHK photometry of the old and metal-rich open cluster NGC 6791. The photometry reaches below the main sequence turn-off to K = 16.5 mag. We combine our photometry w…
About the chemical composition of delta Scuti - the prototype of the class of pulsating variables
A. Yushchenko, V. Gopka, C. Kim +2
We present chemical abundances in the photosphere of Scuti -- the prototype of the class of pulsating variables -- determined from the analysis of a spectrum obtained at Tersko…
Lithium and its isotopic ratio 6Li/7Li in the atmospheres of some sharp-lined roAp star
A. Shavrina, N. Polosukhina, S. Khan +10
The lines of lithium at 6708 A, and 6103 A, are analyzed in high resolution spectra of some sharp-lined and slowly rotating roAp stars. Three spectral synthesis codes - STARSP, ZEE…