UBVRI light curves of 44 type Ia supernovae Academic Article uri icon


  • We present UBVRI photometry of 44 Type la supernovae (SNe la) 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 la to date, nearly doubling the number of well-observed, nearby SNe la with published multicolor CCD light curves. The large sample of [U-band photometry is a unique addition, with important connections to SNe la observed at high redshift. The decline rate of SN la 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. 2006. The American Astronomical Society, All rights reserved.

published proceedings


author list (cited authors)

  • Jha, S., Kirshner, R. P., Challis, P., Garnavich, P. M., Matheson, T., Soderberg, A. M., ... Stanek, K. Z.

citation count

  • 295

complete list of authors

  • Jha, Saurabh||Kirshner, Robert P||Challis, Peter||Garnavich, Peter M||Matheson, Thomas||Soderberg, Alicia M||Graves, Genevieve JM||Hicken, Malcolm||Alves, João F||Arce, Héctor G||Balog, Zoltan||Barmby, Pauline||Barton, Elizabeth J||Berlind, Perry||Bragg, Ann E||Briceño, César||Brown, Warren R||Buckley, James H||Caldwell, Nelson||Calkins, Michael L||Carter, Barbara J||Concannon, Kristi Dendy||Donnelly, R Hank||Eriksen, Kristoffer A||Fabricant, Daniel G||Falco, Emilio E||Fiore, Fabrizio||Garcia, Michael R||Gómez, Mercedes||Grogin, Norman A||Groner, Ted||Groot, Paul J||Haisch, Jr., Karl E||Hartmann, Lee||Hergenrother, Carl W||Holman, Matthew J||Huchra, John P||Jayawardhana, Ray||Jerius, Diab||Kannappan, Sheila J||Kim, Dong-Woo||Kleyna, Jan T||Kochanek, Christopher S||Koranyi, Daniel M||Krockenberger, Martin||Lada, Charles J||Luhman, Kevin L||Luu, Jane X||Macri, Lucas M||Mader, Jeff A||Mahdavi, Andisheh||Marengo, Massimo||Marsden, Brian G||McLeod, Brian A||McNamara, Brian R||Megeath, S Thomas||Moraru, Dan||M

publication date

  • January 2006