CfA3: 185 TYPE Ia SUPERNOVA LIGHT CURVES FROM THE CfA
M. HickenHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAP. ChallisHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USASaurabh W. JhaDepartment of Physics and Astronomy, Rutgers, the State University of New Jersey, Piscataway, NJ 08854, USAR. KirshnerHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USATom MathesonM. ModjazAstronomy Department, UC Berkeley, Campbell Hall, Berkeley, CA 94720, USAA. RestDepartment of Physics, Harvard University, Cambridge, MA 02138, USAW. M. Wood‐VaseyDepartment of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, USAG. Á. BakosHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAE. J. BartonDepartment of Physics and Astronomy, University of California, 2158 Frederick Reines Hall, Irvine, CA 92697, USAZ. BenkhaldounHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAAnn BraggPhysics Department, Marietta College, 215 Firth Street, Marietta, OH 45750, USACésar BriceñoWarren R. BrownHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USANelson CaldwellHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAM. CalkinsHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USARichard ChoHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAL. CiupikAdler Planetarium & Astronomy Museum, 1300 S. Lake Shore Drive, Chicago, IL 60605, USAM. E. ContrerasHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAKristi-Concannon DendyDepartment of Physics and Astronomy, University of North Carolina at Chapel Hill, NC 27599-3255, USAAnil DosajHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USANick DurhamHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAKris EriksenThe University of Arizona, Tucson, AZ 85721, USAG. EsquerdoPlanetary Science Institute, 1700 E. Fort Lowell Road, Tucson, AZ 85719, USAMark E. EverettPlanetary Science Institute, 1700 E. Fort Lowell Road, Tucson, AZ 85719, USAE. FalcoHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAJ. M. FernándezHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAAlejandro E. GabaDepartment of Physics and Astronomy, University of North Carolina at Chapel Hill, NC 27599-3255, USAP. GarnavichUniversity of Notre Dame, 25 Nieuwland Science Hall, Notre Dame, IN 46556-5670, USAGenevieve J. GravesUniversity of California, Astronomy & Astrophysics, 201 Interdisciplinary Sciences Building (ISB), Santa Cruz, CA 95064, USAPaul GreenHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USATed GronerHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAC. W. HergenrotherThe University of Arizona, Tucson, AZ 85721, USAMatthew J. HolmanHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAV. HradeckyHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAJ. P. HuchraHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USABob HutchisonHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAD. JeriusHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAAndrés JordánHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAR. E. KilgardHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAMiriam I. KraussMassachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139-4307, USAK. L. LuhmanDepartment of Astronomy and Astrophysics, 525 Davey Lab, The Pennsylvania State University, University Park, PA 16802, USALucas M. MacriTexas A&M UniversityDaniel P. MarroneHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAJonathan McDowellHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USADaniel H. McIntoshDepartment of Astronomy, University of Massachusetts, Amherst, MA 01003, USAB. R. McNamaraDepartment of Physics & Astronomy, University of Waterloo, 200 University Avenue, West Waterloo, Ontario N2L 3G1, CanadaS. T. MegeathHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAB. J. MochejskaCopernicus Astronomical Center in Warsaw, Poland Bartycka 18, 00-716 Warszawa, PolandDiego J. MuñozHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAJames MuzerolleThe University of Arizona, Tucson, AZ 85721, USAO. NaranjoHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAGautham NarayanHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAM. A. PahreHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAW. N. PetersHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USADawn E. PetersonHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAK. RinesHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USABen RipmanHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAAnna RoussanovaMassachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139-4307, USARudolph E. SchildHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAA. Sicilia‐AguilarHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAJ. L. SokoloskiHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAK. SmalleyHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAAndy SmithHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAT. SpahrHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAK. Z. StanekOSU Department of Astronomy, McPherson Laboratory 140 W 18th Avenue, Columbus, OH 43210, USAP. BarmbyDepartment of Physics & Astronomy, University of Western Ontario, London, ON N6A 3K7, CanadaS. BlondinEuropean Southern Observatory, D-85748 Garching, GermanyC. W. StubbsDepartment of Physics, Harvard University, Cambridge, MA 02138, USAAndrew SzentgyorgyiHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAM. A. P. TorresHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAA. VazMassachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139-4307, USAA. VikhlininHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAZhong WangHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAM. WestoverHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USADeborah Freedman WoodsHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USAPing ZhaoHarvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA
2009en
ABI
Аннотация
We present multiband photometry of 185 type-Ia supernovae (SNe Ia), with over 11,500 observations. These were acquired between 2001 and 2008 at the F. L. Whipple Observatory of the Harvard-Smithsonian Center for Astrophysics (CfA). This sample contains the largest number of homogeneously observed and reduced nearby SNe Ia (z [< over ~] 0.08) published to date. It more than doubles the nearby sample, bringing SN Ia cosmology to the point where systematic uncertainties dominate. Our natural system photometry has a precision of [< over ~]0.02 mag in BVRIr'i' and [< over ~]0.04 mag in U for points brighter than 17.5 mag. We also estimate a systematic uncertainty of 0.03 mag in our SN Ia standard system BVRIr'i' photometry and 0.07 mag for U. Comparisons of our standard system photometry with published SN Ia light curves and comparison stars, where available for the same SN, reveal agreement at the level of a few hundredths mag in most cases. We find that 1991bg-like SNe Ia are sufficiently distinct from other SNe Ia in their color and light-curve-shape/luminosity relation that they should be treated separately in light-curve/distance fitter training samples. The CfA3 sample will contribute to the development of better light-curve/distance fitters, particularly in the few dozen cases where near-infrared photometry has been obtained and, together, can help disentangle host-galaxy reddening from intrinsic supernova color, reducing the systematic uncertainty in SN Ia distances due to dust.
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