| Title: | THE PECULIAR EXTINCTION LAW OF SN 2014J MEASURED WITH THE HUBBLE SPACE TELESCOPE |
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| Authors: | ID Amanullah, Rahman, Oskar Klein Centre, Physics Department, Stockholm University, SE-106 91 Stockholm, Sweden (Author)
ID Goobar, Ariel, Oskar Klein Centre, Physics Department, Stockholm University, SE-106 91 Stockholm, Sweden (Author)
ID Johansson, Joel, Oskar Klein Centre, Physics Department, Stockholm University, SE-106 91 Stockholm, Sweden (Author)
ID Banerjee, D.P.K., Physical Research Laboratory, Ahmedabad 380009, India (Author)
ID Venkataraman, V., Physical Research Laboratory, Ahmedabad 380009, India (Author)
ID Joshi, V., Physical Research Laboratory, Ahmedabad 380009, India (Author)
ID Ashok, N.M., Physical Research Laboratory, Ahmedabad 380009, India (Author)
ID Cao, Yi, Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA (Author)
ID Kasliwal, Mansi, Observatories of the Carnegie Institution for Science, 813 Santa Barbara Street, Pasadena, CA 91101, USA (Author)
ID Kulkarni, S.R., Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA (Author)
ID Nugent, P.E., Department of Astronomy, University of California Berkeley, B-20 Hearst Field, Annex # 3411, Berkeley, CA 94720-3411, USA 6 Computational Cosmology Center, Computational Research Division, Lawrence Berkeley National Laboratory, (Author)
ID Petrushevska, Tanja, Oskar Klein Centre, Physics Department, Stockholm University, SE-106 91 Stockholm, Sweden (Author)
ID Stanishev, V., CENTRA—Centro Multidisciplinar de Astrof´ısica, Instituto Superior Tecnico, Av. Rovisco Pais 1, 1049-001 Lisbon, Portugal (Author), et al. |
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| Files: |
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| Language: | English |
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| Work type: | Not categorized |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UNG - University of Nova Gorica
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| 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. |
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| Keywords: | dust, extinction – galaxies: individual (Messier 82) – supernovae: individual SN2014J |
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| Publication version: | Version of Record |
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| Year of publishing: | 2014 |
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| Number of pages: | 6 |
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| Numbering: | 788, L21 |
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| PID: | 20.500.12556/RUNG-3564-53f49ed8-5695-4bb9-6995-d4d36857aba5 |
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| COBISS.SI-ID: | 4996347 |
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| DOI: | 10.1088/2041-8205/788/2/L21 |
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| NUK URN: | URN:SI:UNG:REP:T62J1WRD |
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| Publication date in RUNG: | 22.01.2018 |
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| Views: | 4169 |
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| Downloads: | 0 |
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