UBVRI light curves of 44 type Ia supernovae

被引：302

作者：

Jha, S ^{[1
]}

Kirshner, RP ^{[1
]}

Challis, P ^{[1
]}

Garnavich, PM ^{[1
]}

Matheson, T ^{[1
]}

Soderberg, AM ^{[1
]}

Graves, GJM ^{[1
]}

Hicken, M ^{[1
]}

Alves, JF ^{[1
]}

Arce, HG ^{[1
]}

Balog, Z ^{[1
]}

Barmby, P ^{[1
]}

Barton, EJ ^{[1
]}

Berlind, P ^{[1
]}

Bragg, AE ^{[1
]}

Briceño, C ^{[1
]}

Brown, WR ^{[1
]}

Buckley, JH ^{[1
]}

Caldwell, N ^{[1
]}

Calkins, ML ^{[1
]}

Carter, BJ ^{[1
]}

Concannon, KD ^{[1
]}

Donnelly, RH ^{[1
]}

Eriksen, KA ^{[1
]}

Fabricant, DG ^{[1
]}

Falco, EE ^{[1
]}

Fiore, F ^{[1
]}

Garcia, MR ^{[1
]}

Gómez, M ^{[1
]}

Grogin, NA ^{[1
]}

Groner, T ^{[1
]}

Groot, PJ ^{[1
]}

Haisch, KE ^{[1
]}

Hartmann, L ^{[1
]}

Hergenrother, CW ^{[1
]}

Holman, MJ ^{[1
]}

Huchra, JP ^{[1
]}

Jayawardhana, R ^{[1
]}

Jerius, D ^{[1
]}

Kannappan, SJ ^{[1
]}

Kim, DW ^{[1
]}

Kleyna, JT ^{[1
]}

Kochanek, CS ^{[1
]}

Koranyi, DM ^{[1
]}

Krockenberger, M ^{[1
]}

Lada, CJ ^{[1
]}

Luhman, KL ^{[1
]}

Luu, JX ^{[1
]}

Macri, LM ^{[1
]}

Mader, JA ^{[1
]}

机构：

[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

来源：

ASTRONOMICAL JOURNAL | 2006年 / 131卷 / 01期

关键词：

supernovae : general; techniques : photometric;

D O I：

10.1086/497989

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 similar to 40% intrinsic scatter compared to the B band.

引用

页码：527 / 554

页数：28

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