SN 1987A in the LMC - UBVRI photometry at Cerro Tololo

Journal Article · Fri Jan 01 00:00:00 EST 1988 · Astron. J.; (United States)

DOI:https://doi.org/10.1086/114613· OSTI ID:5346124

Hamuy, M; Suntzeff, N B; Gonzalez, R; Martin, G

The paper presents UBVRI photometry of the Type II supernova 1987A in the Large Magellanic Cloud for the first 177 days since outburst. This photometry is used to construct the bolometric luminosity and effective-temperature evolution of 1987A. It is found that 1987A decreased in luminosity very rapidly over the first 8 days, slowly increased in luminosity up until day 90, and since day 120 has been declining exponentially at 0.010 mag per day. The general shape of the bolometric light curve is close to the predicted curve based on radioactive decay of CO-56 in the remnant. 1987A was compared with other Type II SNe, and it is found that, although Type II's show a large range in intrinsic luminosity over the first 100 days, their subsequent luminosity evolution is much more uniform. 48 references.

• Research Organization: Observatorio Interamericano de Cerro Tololo, La Serena (Chile)
• OSTI ID: 5346124
• Journal Information: Astron. J.; (United States), Vol. 95
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
MAGELLANIC CLOUDS
SUPERNOVAE
PHOTOMETRY
BOLOMETERS
COMPARATIVE EVALUATIONS
LUMINOSITY
STAR EVOLUTION
ULTRAVIOLET SPECTRA
ERUPTIVE VARIABLE STARS
GALAXIES
MEASURING INSTRUMENTS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SPECTRA
STARS
VARIABLE STARS
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources
640105 - Astrophysics & Cosmology- Galaxies