SN 1987A - A linear polarimetric study

Details SN 1987A - A linear polarimetric study SN 1987A - A linear polarimetric study

Nov 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...334..295m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 334, Nov. 1, 1988, p. 295-307. Research supported by the Comision de Invest

Astronomy and Astrophysics

Astrophysics

46

Linear Polarization, Polarimetry, Supernova 1987A, Astronomical Models, Photosphere

Scientific paper

Multicolor linear polarimetric observations of SN 1987A obtained from 1987 February 28 until 1987 April 29 are presented. A correction for foreground interstellar polarization is performed, and an intrinsic polarization (IP) is obtained. The IP was decreasing at a constant position angle of 27° during the first month after the explosion. The wavelength dependence suggests that this polarization was due to Thomson scattering. However, 30 days after the explosion the polarization began to grow in the V, R, and I filters, at a different position angle, changing the wavelength dependence. A model describing the time evolution of the IP is presented.

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