67 citations · 189 across the 7 of their papers we have counts for
7 papers
Accurate fundamental parameters and distance to a massive early-type eclipsing binary in the Danks 2 cluster
M. Kourniotis, A. Z. Bonanos, S. J. Williams +3
We present a study of the properties of the O-type, massive eclipsing binary 2MASS J13130841-6239275 located in the outskirts of the Danks 2 cluster in the G305 star-forming comple…
The Infrared Massive Stellar Content of M83
S. J. Williams, A. Z. Bonanos, B. C. Whitmore +2
We present an analysis of archival Spitzer images and new ground-based and Hubble Space Telescope (HST) near-infrared (IR) and optical images of the field of M83 with the goal of i…
Super-Chandrasekhar SNe Ia Strongly Prefer Metal-Poor Environments
Rubab Khan, K. Z. Stanek, R. Stoll +1
We discuss the emerging trend that super-Chandrasekhar Type Ia Supernovae (SCSNe) with progenitor mass estimates significantly exceeding 1.4 M_sun tend to explode in metal-poor env…
Pre-discovery and Follow-up Observations of the Nearby SN 2009nr: Implications for Prompt Type Ia SNe
Rubab Khan, J. L. Prieto, G. Pojmanski +8
We present photometric and spectroscopic observations of the Type Ia supernova SN 2009nr in UGC 8255 (z=0.0122). Following the discovery announcement at what turned out to be ten d…
Variability of Luminous Stars in the Large Magellanic Cloud Using 10 Years of ASAS Data
D. M. Szczygiel, K. Z. Stanek, A. Z. Bonanos +3
Motivated by the detection of a recent outburst of the massive luminous blue variable LMC-R71, which reached an absolute magnitude M_V = -9.3 mag, we undertook a systematic study o…
Discovery of the Extremely Energetic Supernova 2008fz
A. J. Drake, S. G. Djorgovski, J. L. Prieto +7
We report on the discovery and initial observations of the energetic type IIn supernova (SN), 2008fz. The optical energy emitted by SN 2008fz (based on the light curve over a 88 da…
Go Long, Go Deep: Finding Optical Jet Breaks for Swift-Era GRBs with the LBT
X. Dai, P. M. Garnavich, J. L. Prieto +20
Using the 8.4m Large Binocular Telescope, we observed six GRB afterglows from 2.8 hours to 30.8 days after the burst triggers to systematically probe the late time behaviors of aft…