UBVRILight Curves of 44 Type Ia Supernovae
Author(s) -
Saurabh W. Jha,
R. Kirshner,
Peter Challis,
P. Garnavich,
T. Matheson,
Alicia Soderberg,
Genevieve J. Graves,
M. Hicken,
J. Alves,
Héctor G. Arce,
Z. Balog,
P. Barmby,
E. J. Barton,
P. Berlind,
Ann Bragg,
César Briceño,
Warren R. Brown,
J. H. Buckley,
Nelson Caldwell,
M. Calkins,
Barbara J. Carter,
Kristi Dendy Concan,
Rich Donnelly,
Kristoffer A. Eriksen,
Daniel G. Fabricant,
E. Falco,
F. Fiore,
M. R. Garcia,
M. Gómez,
Norman A. Grogin,
Ted Groner,
P. Groot,
Karl E. Haisch,
Lee Hartmann,
C. W. Hergenrother,
M. J. Holman,
J. P. Huchra,
Ray Jayawardhana,
D. Jerius,
Sheila J. Kannappan,
Dong-Woo Kim,
Jan Kleyna,
C. S. Kochanek,
Daniel M. Koranyi,
M. Krockenberger,
C. J. Lada,
K. L. Luhman,
Jane Luu,
Lucas M. Macri,
J. Mader,
Andisheh Mahdavi,
M. Marengo,
B. G. Marsden,
B. A. McLeod,
B. R. McNamara,
S. T. Megeath,
Dan Moraru,
Amy E. Mossman,
August Muench,
J. A. Muñoz,
James Muzerolle,
O. Naranjo,
Kristin Nelson-Patel,
M. A. Pahre,
B. M. Patten,
J. Peters,
W. N. Peters,
J. C. Raymond,
Kenneth J. Rines,
Rudolph E. Schild,
Gregory J. Sobczak,
T. B. Spahr,
J. R. Stauffer,
R. P. Stefanik,
Andrew Szentgyorgyi,
E. V. Tollestrup,
P. Väisänen,
A. Vikhlinin,
Zhong Wang,
S. P. Willner,
S. J. Wolk,
Joseph Zajac,
Ping Zhao,
Krzysztof Z. Stanek
Publication year - 2006
Publication title -
the astronomical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.61
H-Index - 271
eISSN - 1538-3881
pISSN - 0004-6256
DOI - 10.1086/497989
Subject(s) - photometry (optics) , astrophysics , physics , supernova , light curve , observatory , astronomy , redshift , galaxy , stars
We present UBVRI photometry of 44 type-Ia supernovae (SN Ia) observed from1997 to 2001 as part of a continuing monitoring campaign at the Fred LawrenceWhipple Observatory of the Harvard-Smithsonian Center for Astrophysics. Thedata set comprises 2190 observations and is the largest homogeneously observedand reduced sample of SN Ia to date, nearly doubling the number ofwell-observed, nearby SN Ia with published multicolor CCD light curves. Thelarge sample of U-band photometry is a unique addition, with importantconnections to SN Ia observed at high redshift. The decline rate of SN IaU-band light curves correlates well with the decline rate in other bands, asdoes the U-B color at maximum light. However, the U-band peak magnitudes showan increased dispersion relative to other bands even after accounting forextinction and decline rate, amounting to an additional ~40% intrinsic scattercompared to B-band.
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