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Title:THE PECULIAR EXTINCTION LAW OF SN 2014J MEASURED WITH THE HUBBLE SPACE TELESCOPE
Authors:Amanullah, Rahman (Author)
Goobar, Ariel (Author)
Johansson, Joel (Author)
Banerjee, D.P.K. (Author)
Venkataraman, V. (Author)
Joshi, V. (Author)
Ashok, N.M. (Author)
Cao, Yi (Author)
Kasliwal, Mansi (Author)
Kulkarni, S.R. (Author)
Nugent, P.E. (Author)
Petrushevska, Tanja (Author)
Stanishev, V. (Author)
et al.
Files:This document has no files. This document may have a phisical copy in the library of the organization, check the status via COBISS. Link is opened in a new window
Language:English
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:The wavelength dependence of the extinction of Type Ia SN 2014J in the nearby galaxy M82 has been measured using UV to near-IR photometry obtained with the Hubble Space Telescope, the Nordic Optical Telescope, and the Mount Abu Infrared Telescope. This is the first time that the reddening of an SN Ia is characterized over the full wavelength range of 0.2–2μm. A total-to-selective extinction, RV 3.1, is ruled out with high significance. The best fit at maximum using a Galactic type extinction law yields RV = 1.4 ± 0.1. The observed reddening of SN 2014J is also compatible with a power-law extinction, Aλ/AV = (λ/λV ) p as expected from multiple scattering of light, with p = −2.1 ± 0.1. After correcting for differences in reddening, SN 2014J appears to be very similar to SN 2011fe over the 14 broadband filter light curves used in our study.
Keywords:dust, extinction – galaxies: individual (Messier 82) – supernovae: individual SN2014J
Year of publishing:2014
Number of pages:6
Numbering:L21, 788
COBISS_ID:4996347  Link is opened in a new window
URN:URN:SI:UNG:REP:T62J1WRD
DOI:10.1088/2041-8205/788/2/L21 Link is opened in a new window
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Record is a part of a journal

Title:Astrophysical Journal Letters
Shortened title:APJL
Publisher:American Astronomical Society
ISSN:2041-8205
Year of publishing:2014

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