THE CARNEGIE SUPERNOVA PROJECT: SECOND PHOTOMETRY DATA RELEASE OF LOW-REDSHIFT TYPE Ia SUPERNOVAE
2011 (English)In: Astronomical Journal, ISSN 0004-6256, E-ISSN 1538-3881, Vol. 142, no 5, 156- p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2011. Vol. 142, no 5, 156- p.
galaxies: distances and redshifts, supernovae: general
Astronomy, Astrophysics and Cosmology
IdentifiersURN: urn:nbn:se:su:diva-70909DOI: 10.1088/0004-6256/142/5/156ISI: 000296777000013OAI: oai:DiVA.org:su-70909DiVA: diva2:483282
authorCount :232012-01-252012-01-242012-01-25Bibliographically approved