PROPERTIES OF TYPE II PLATEAU SUPERNOVA SNLS-04D2dc: MULTICOLOR LIGHT CURVES OF SHOCK BREAKOUT AND PLATEAU

Journal Article · Sun Nov 01 00:00:00 EDT 2009 · Astrophysical Journal (Online)

DOI:https://doi.org/10.1088/0004-637X/705/1/L10· OSTI ID:21378425

Tominaga, N ^[1]; Blinnikov, S; Nomoto, K ^[2]; Baklanov, P ^[3]; Morokuma, T ^[4]; Suzuki, T ^[5]

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1. Department of Physics, Faculty of Science and Engineering, Konan University, 8-9-1 Okamoto, Kobe, Hyogo 658-8501 (Japan)
2. Institute for the Physics and Mathematics of the Universe, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8569 (Japan)
3. Institute for Theoretical and Experimental Physics (ITEP), Moscow 117218 (Russian Federation)
4. Optical and Infrared Astronomy Division, National Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan)
5. Department of Astronomy, School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033 (Japan)

Shock breakout is the brightest radiative phenomenon in a Type II supernova (SN). Although it was predicted to be bright, direct observation is difficult due to the short duration and X-ray/ultraviolet-peaked spectra. First entire observations of the shock breakouts of Type II Plateau SNe (SNe IIP) were reported in 2008 by ultraviolet and optical observations by the Galaxy Evolution Explorer satellite and supernova legacy survey (SNLS), named SNLS-04D2dc and SNLS-06D1jd. We present multicolor light curves of an SN IIP, including the shock breakout and plateau, calculated with a multigroup radiation hydrodynamical code STELLA and an evolutionary progenitor model. The synthetic multicolor light curves reproduce well the observations of SNLS-04D2dc. This is the first study to reproduce the ultraviolet light curve of the shock breakout and the optical light curve of the plateau consistently. We conclude that SNLS-04D2dc is the explosion with a canonical explosion energy 1.2 x 10{sup 51} erg and that its progenitor is a star with a zero-age main-sequence mass 20 M{sub sun} and a presupernova radius 800 R{sub sun}. The model demonstrates that the peak apparent B-band magnitude of the shock breakout would be m {sub B} approx 26.4 mag if an SN identical to SNLS-04D2dc occurs at a redshift z = 1, which can be reached by 8m-class telescopes. The result evidences that the shock breakout has a great potential to detect SNe IIP at z approx> 1.

• OSTI ID: 21378425
• Journal Information: Astrophysical Journal (Online), Vol. 705, Issue 1; Other Information: DOI: 10.1088/0004-637X/705/1/L10; ISSN 1538-4357
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
EXPLORER SATELLITES
EXPLOSIONS
GALAXIES
RADIANT HEAT TRANSFER
RED SHIFT
SHOCK WAVES
STAR EVOLUTION
SUPERNOVAE
TELESCOPES
ULTRAVIOLET RADIATION
VISIBLE RADIATION
BINARY STARS
ELECTROMAGNETIC RADIATION
ENERGY TRANSFER
ERUPTIVE VARIABLE STARS
EVOLUTION
HEAT TRANSFER
RADIATIONS
SATELLITES
STARS
VARIABLE STARS