THE CARNEGIE SUPERNOVA PROJECT: SECOND PHOTOMETRY DATA RELEASE OF LOW-REDSHIFT TYPE Ia SUPERNOVAE

被引:220
|
作者
Stritzinger, Maximilian D. [1 ,2 ,3 ]
Phillips, M. M. [3 ]
Boldt, Luis N. [4 ]
Burns, Chris [5 ]
Campillay, Abdo [3 ]
Contreras, Carlos [6 ]
Gonzalez, Sergio
Folatelli, Gaston [7 ]
Morrell, Nidia [3 ]
Krzeminski, Wojtek [3 ]
Roth, Miguel [3 ]
Salgado, Francisco [8 ]
DePoy, D. L. [9 ]
Hamuy, Mario [10 ]
Freedman, Wendy L. [5 ]
Madore, Barry F. [5 ,11 ]
Marshall, J. L. [9 ]
Persson, Sven E. [5 ]
Rheault, Jean-Philippe [9 ]
Suntzeff, Nicholas B. [9 ]
Villanueva, Steven [9 ]
Li, Weidong [12 ]
Filippenko, Alexei V. [12 ]
机构
[1] Stockholm Univ, Dept Astron, Oskar Klein Ctr, S-10691 Stockholm, Sweden
[2] Univ Copenhagen, Niels Bohr Inst, Dark Cosmol Ctr, DK-2100 Copenhagen O, Denmark
[3] Las Campanas Observ, Carnegie Observ, La Serena, Chile
[4] Univ Bonn, Argelander Inst Astron, D-53111 Bonn, Germany
[5] Observ Carnegie Inst Sci, Pasadena, CA 91101 USA
[6] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia
[7] Univ Tokyo, IPMU, Chiba 2778583, Japan
[8] Leiden Univ, Leiden Observ, NL-2300 RA Leiden, Netherlands
[9] Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamenta, Dept Phys & Astron, College Stn, TX 77843 USA
[10] Univ Chile, Dept Astron, Santiago, Chile
[11] CALTECH, Jet Prop Lab, Infrared Proc & Anal Ctr, Pasadena, CA 91125 USA
[12] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA
来源
ASTRONOMICAL JOURNAL | 2011年 / 142卷 / 05期
基金
美国国家航空航天局; 美国国家科学基金会; 新加坡国家研究基金会;
关键词
galaxies: distances and redshifts; supernovae: general; ABSOLUTE MAGNITUDES; OPTICAL PHOTOMETRY; LIGHT CURVES; CONSTRAINTS; SN-1991T; DISTANCE; SEARCH;
D O I
10.1088/0004-6256/142/5/156
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The Carnegie Supernova Project (CSP) was a five-year observational survey conducted at Las Campanas Observatory that obtained, among other things, high-quality light curves of similar to 100 low-redshift Type Ia supernovae (SNe Ia). Presented here is the second data release of nearby SN Ia photometry consisting of 50 objects, with a subset of 45 having near-infrared follow-up observations. Thirty-three objects have optical pre-maximum coverage with a subset of 15 beginning at least five days before maximum light. In the near-infrared, 27 objects have coverage beginning before the epoch of B-band maximum, with a subset of 13 beginning at least five days before maximum. In addition, we present results of a photometric calibration program to measure the CSP optical (uBgVri) bandpasses with an accuracy of similar to 1%. Finally, we report the discovery of a second SN Ia, SN 2006ot, similar in its characteristics to the peculiar SN 2006bt.
引用
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页数:14
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