UBVRI Light Curves of 44 Type Ia Supernovae

Author(s)

Saurabh Jha, Robert P. Kirshner, Peter Challis, Peter M. Garnavich, Thomas Matheson, Alicia M. Soderberg, Genevieve J. M. Graves, Malcolm Hicken, João F. Alves, Héctor G. Arce, Zoltan Balog, Pauline Barmby, Elizabeth J. Barton, Perry Berlind, Ann E. Bragg, César Briceño, Warren R. Brown, James H. Buckley, Nelson Caldwell, Michael L. Calkins, Barbara J. Carter, Kristi Dendy Concannon, R. Hank Donnelly, Kristoffer A. Eriksen, Daniel G. Fabricant, Emilio E. Falco, Fabrizio Fiore, Michael R. Garcia, Mercedes Gómez, Norman A. Grogin, Ted Groner, Paul J. Groot, Karl E., Jr. Haisch, Lee Hartmann, Carl W. Hergenrother, Matthew J. Holman, John P. Huchra, Ray Jayawardhana, Diab Jerius, Sheila J. Kannappan, Dong-Woo Kim, Jan T. Kleyna, Christopher S. Kochanek, Daniel M. Koranyi, Martin Krockenberger, Charles J. Lada, Kevin L. Luhman, Jane X. Luu, Lucas M. Macri, Jeff A. Mader, Andisheh Mahdavi, Massimo Marengo, Brian G. Marsden, Brian A. McLeod, Brian R. McNamara, S. Thomas Megeath, Dan Moraru, Amy E. Mossman, August A. Muench, Jose A. Muñoz, James Muzerolle, Orlando Naranjo, Kristin Nelson-Patel, Michael A. Pahre, Brian M. Patten, James Peters, Wayne Peters, John C. Raymond, Kenneth Rines, Rudolph E. Schild, Gregory J. Sobczak, Timothy B. Spahr, John R. Stauffer, Robert P. Stefanik, Andrew H. Szentgyorgyi, Eric V. Tollestrup, Petri Väisänen, Alexey Vikhlinin, Zhong Wang, S. P. Willner, Scott J. Wolk, Joseph M. Zajac, Ping Zhao, Krzysztof Z. Stanek

Abstract

We present UBVRI photometry of 44 Type Ia supernovae (SNe Ia) observed

from 1997 to 2001 as part of a continuing monitoring campaign at the

Fred Lawrence Whipple Observatory of the Harvard-Smithsonian Center for

Astrophysics. The data set comprises 2190 observations and is the

largest homogeneously observed and reduced sample of SNe Ia to date,

nearly doubling the number of well-observed, nearby SNe Ia with

published multicolor CCD light curves. The large sample of U-band

photometry is a unique addition, with important connections to SNe Ia

observed at high redshift. The decline rate of SN Ia U-band light curves

correlates well with the decline rate in other bands, as does the U-B

color at maximum light. However, the U-band peak magnitudes show an

increased dispersion relative to other bands even after accounting for

extinction and decline rate, amounting to an additional ~40% intrinsic

scatter compared to the B band.

Organisation(s)

External organisation(s)

Harvard-Smithsonian Center for Astrophysics

Journal

The Astronomical Journal

Volume

131

Pages

527-554

ISSN

0004-6256

DOI

https://doi.org/10.1086/497989

Publication date

01-2006

Peer reviewed

Yes

Austrian Fields of Science 2012

103004 Astrophysics

Keywords

Portal url

https://ucrisportal.univie.ac.at/en/publications/a3c2cb37-859d-493e-9c9c-48e54095bd62