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The Carnegie Supernova Project: First Photometry Data Release of Low-Redshift Type Ia Supernovae
Carlos Contreras, Mario Hamuy, M. M. Phillips +18
The Carnegie Supernova Project (CSP) is a five-year survey being carried out at the Las Campanas Observatory to obtain high-quality light curves of ~100 low-redshift Type Ia supern…
The Carnegie Supernova Project: Analysis of the First Sample of Low-Redshift Type-Ia Supernovae
Gaston Folatelli, M. M. Phillips, Christopher R. Burns +19
We present the analysis of the first set of low-redshift Type Ia supernovae (SNe Ia) by the Carnegie Supernova Project. Well-sampled, high-precision optical (ugriBV) and near-infra…
On the Progenitor of the Type II-Plateau SN 2008cn in NGC 4603
N. Elias-Rosa, S. D. Van Dyk, W. Li +7
Through comparison of pre- and post-explosion images obtained with the Wide Field and Planetary Camera 2 onboard the Hubble Space Telescope, we have isolated a supergiant star prio…
The fast declining Type Ia supernova 2003gs, and evidence for a significant dispersion in near-infrared absolute magnitudes of fast decliners at maximum light
Kevin Krisciunas, G. H. Marion, Nicholas B. Suntzeff +17
We obtained optical photometry of SN 2003gs on 49 nights, from 2 to 494 days after T(B_max). We also obtained near-IR photometry on 21 nights. SN 2003gs was the first fast declinin…
SN 2003bg: The First Type IIb Hypernova
Mario Hamuy, Jinsong Deng, Paolo A. Mazzali +18
Optical and near-infrared photometry and optical spectroscopy are reported for SN 2003bg, starting a few days after explosion and extending for a period of more than 300 days. Our…
Spectroscopic study of the N159/N160 complex in the Large Magellanic Cloud
Cecilia Fariña, Guillermo L. Bosch, Nidia I. Morrell +2
We present a spectroscopic study of the N159/N160 massive-star forming region south of 30 Doradus in the Large Magellanic Cloud, classifying a total of 189 stars in the field of th…
The He-rich core-collapse supernova 2007Y: Observations from X-ray to Radio Wavelengths
Maximilian Stritzinger, Paolo Mazzali, Mark M. Phillips +21
A detailed study spanning approximately a year has been conducted on the Type Ib supernova 2007Y. Imaging was obtained from X-ray to radio wavelengths, and a comprehensive set of m…
A first orbital solution for the very massive 30 Dor main-sequence WN6h+O binary R145
O. Schnurr, A. F. J. Moffat, A. Villar-Sbaffi +2
We report the results of a spectroscopic and polarimetric study of the massive, hydrogen-rich WN6h stars R144 (HD 38282 = BAT99-118 = Brey 89) and R145 (HDE 269928 = BAT99-119 = Br…