138 citations · 640 across the 11 of their papers we have counts for
11 papers
Mapping the Interstellar Reddening and Extinction towards Baade's Window Using Minimum Light Colors of ab-type RR Lyrae Stars. Revelations from the De-reddened Color-Magnitude Diagrams
Abhijit Saha, A. Katherina Vivas, Edward W. Olszewski +21
We have obtained repeated images of 6 fields towards the Galactic bulge in 5 passbands (u, g, r, i, z) with the DECam imager on the Blanco 4m telescope at CTIO. From over 1.6 billi…
An Imaging and Spectroscopic Study of Four Strong MgII Absorbers Revealed By GRB060418
L. K. Pollack, H. -W. Chen, J. X. Prochaska +1
We present results from an imaging and spectroscopic study of four strong MgII absorbers of W(2796) >~ 1 Ang revealed by the afterglow of GRB060418 at z_GRB=1.491. These absorbers,…
High-Redshift Starbursting Dwarf Galaxies Revealed by GRB Afterglows
Hsiao-Wen Chen, Daniel A. Perley, Lindsey K. Pollack +7
We present a study of 15 long-duration gamma-ray burst (GRB) host galaxies at z>2. The GRBs are selected with available early-time afterglow spectra in order to compare interstella…
A photometric redshift of for the \agile GRB 080514B
A. Rossi, A. de Ugarte Postigo, P. Ferrero +26
Aims: The AGILE gamma-ray burst GRB 080514B is the first burst with detected emission above 30 MeV and an optical afterglow. However, no spectroscopic redshift for this burst is kn…
On the absence of Wind Signatures in GRB Afterglow Spectra: Constraints on the Wolf-Rayet Winds of GRB Progenitors
Hsiao-Wen Chen, Jason X. Prochaska, Enrico Ramirez-Ruiz +3
We investigate available constraints on the circumstellar medium (CSM) around long-duration gamma-ray burst (GRB) progenitors from afterglow spectra. We first establish a statistic…
The Unique Type Ib Supernova 2005bf: A WN Star Explosion Model for Peculiar Light Curves and Spectra
N. Tominaga, M. Tanaka, K. Nomoto +22
Observations and modeling for the light curve (LC) and spectra of supernova (SN) 2005bf are reported. This SN showed unique features: the LC had two maxima, and declined rapidly af…