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Dust Extinction toward SN 2014J in M82

Part of: IAU Issue 315 - From Interstellar Clouds...

Published online by Cambridge University Press:  12 September 2016

Jian Gao ,
B. W. Jiang  and
Aigen Li
Jian Gao
Affiliation:
Department of Astronomy, Beijing Normal University, Beijing 100875, China email: jiangao@bnu.edu.cn, bjiang@bnu.edu.cn
B. W. Jiang
Affiliation:
Department of Astronomy, Beijing Normal University, Beijing 100875, China email: jiangao@bnu.edu.cn, bjiang@bnu.edu.cn Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA email: lia@missouri.edu
Aigen Li
Affiliation:
Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA email: lia@missouri.edu
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Abstract

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We derive the extinction toward SN 2014J, a Type Ia supernova in M82, as a function of wavelength from the far ultraviolet to the near infrared by modeling the observed color excesses in terms of a mixture of silicate and graphite. With Av ≈ 1.9 mag and RV ≈ 1.7-1.8, the derived extinction law differs substantially from those of the Galaxy and the Magellanic clouds.

Keywords

dustextinction—galaxies: ISM—supernovae: individual (SN 2014J)
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes? , August 2015 , E25
Copyright
Copyright © International Astronomical Union 2016 

References

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