Photometric and spectroscopic properties of Type II-P supernovae

被引：141

作者：

Faran, T. ^{[1
]}

Poznanski, D. ^{[1
]}

Filippenko, A. V. ^{[2
]}

Chornock, R. ^{[3
]}

Foley, R. J. ^{[4
,5
]}

Ganeshalingam, M. ^{[2
,6
]}

Leonard, D. C. ^{[7
]}

Li, W. ^{[2
]}

Modjaz, M. ^{[8
]}

Nakar, E. ^{[1
]}

Serduke, F. J. D. ^{[2
]}

Silverman, J. M. ^{[9
]}

机构：

[1] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

[2] Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA

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

[4] Univ Illinois, Dept Astron, Urbana, IL 61801 USA

[5] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[6] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[7] San Diego State Univ, Dept Astron, San Diego, CA 92182 USA

[8] NYU, CCPP, New York, NY 10003 USA

[9] Univ Texas Austin, Dept Astron, Austin, TX 78712 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2014年 / 442卷 / 01期

基金：

美国国家科学基金会;

关键词：

supernovae:; general; TO-GAS RATIO; LIGHT-CURVES; SN; 2005CS; HOST GALAXY; DISTANCE; MASS; EVOLUTION; 1999EM; MODEL; MULTIWAVELENGTH;

D O I：

10.1093/mnras/stu955

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study a sample of 23 Type II plateau supernovae (SNe II-P), all observed with the same set of instruments. Analysis of their photometric evolution confirms that their typical plateau duration is 100 d with little scatter, showing a tendency to get shorter for more energetic SNe. We examine the claimed correlation between the luminosity and the rise time from explosion to plateau. We analyse their spectra, measuring typical ejecta velocities, and confirm that they follow a well-behaved power-law decline. We find indications of high-velocity material in the spectra of six of our SNe. We test different dust-extinction correction methods by asking the following - does the uniformity of the sample increase after the application of a given method? A reasonably behaved underlying distribution should become tighter after correction. No method we tested made a significant improvement.

引用

页码：844 / 861

页数：18

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