Optical and infrared photometry of the type Ia supernovae 1991T, 1991bg, 1999ek, 2001bt, 2001cn, 2001cz, and 2002bo

被引：124

作者：

Krisciunas, K ^{[1
]}

Suntzeff, NB

Phillips, MM

Candia, P

Prieto, JL

Antezana, R

Chassagne, R

Chen, HW

Dickinson, M

Eisenhardt, PR

Espinoza, J

Garnavich, PM

González, D

Harrison, TE

Hamuy, M

Ivanov, VD

Krzeminski, W

Kulesa, C

McCarthy, P

Moro-Martín, A

Muena, C

Noriega-Crespo, A

Persson, SE

Pinto, PA

Roth, M

Rubenstein, EP

Stanford, SA

Stringfellow, GS

Zapata, A

Porter, A

Wischnjewsky, M

机构：

[1] Carnegie Observ, Las Campanas Observ, Casilla 601, La Serena, Chile

[2] Natl Opt Astron Observ, Cerro Tololo Interamer Observ, La Serena, Chile

[3] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[4] Univ Chile, Dept Astron, Santiago, Chile

[5] St Clotilde Observ, St Clotilde, Reunion, France

[6] MIT, Ctr Space Res, Cambridge, MA 02139 USA

[7] Natl Opt Astron Observ, Kitt Peak Natl Observ, Tucson, AZ 85719 USA

[8] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[9] New Mexico State Univ, Dept Astron, Las Cruces, NM 88003 USA

[10] European So Observ, Santiago 19, Chile

[11] Univ Arizona, Steward Observ, Tucson, AZ 85721 USA

[12] Univ Arizona, Dept Astron, Tucson, AZ 85721 USA

[13] Observ Carnegie Inst Washington, Pasadena, CA 91101 USA

[14] CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA

[15] Adv Fuel Res Inc, E Hartford, CT 06108 USA

[16] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[17] Univ Colorado, Ctr Astrophys & Space Astron, Boulder, CO 80309 USA

[18] Univ Concepcion, Dept Fis, Astron Grp, Concepcion, Chile

来源：

ASTRONOMICAL JOURNAL | 2004年 / 128卷 / 06期

关键词：

supernovae; individual; (SN; 1991T; SN; 1991bg; 1999ek; 2001bt; 2001cn; 2001cz; 2002bo); techniques : photometric;

D O I：

10.1086/425629

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present optical and/or infrared photometry of the Type Ia supernovae SN 1991T, SN 1991bg, SN 1999ek, SN 2001bt, SN 2001cn, SN 2001cz, and SN 2002bo. All but one of these supernovae have decline rate parameters, Deltam(15)(B), close to the median value of 1.1 for the whole class of Type Ia supernovae. The addition of these supernovae to the relationship between the near-infrared absolute magnitudes and Deltam(15)(B) strengthens the previous relationships we have found in that the maximum light absolute magnitudes are essentially independent of the decline rate parameter. (SN 1991bg, the prototype of the subclass of fast-declining Type Ia supernovae, is a special case.) The dispersion in the Hubble diagram in JHK is only similar to0.15 mag. The near-infrared properties of Type Ia supernovae continue to be excellent measures of the luminosity distances to the supernova host galaxies because of the need for only small corrections from the epoch of observation to maximum light, low dispersion in absolute magnitudes at maximum light, and the minimal reddening effects in the near-infrared.

引用

页码：3034 / 3052

页数：19