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Diversity in extinc...
Diversity in extinction laws of Type Ia supernovae measured between 0.2 and 2 μm
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- Amanullah, Rahman (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University
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- Johansson, Joel (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University,Texas A and M University,Niels Bohr Institute,Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA),Universidad del Pais Vasco / Euskal Herriko Unibertsitatea,University of the Basque Country (UPV/EHU)
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- Goobar, Ariel (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University
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- Ferretti, Raphael (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University
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- Papadogiannakis, Seméli (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University
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- Petrushevska, Tanja (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University
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Brown, P. J. (author)
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- Cao, Y. (author)
- California Institute of Technology (Caltech)
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- Contreras, C. (author)
- Las Campanas Observatory
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- Dahle, H. (author)
- Universitetet i Oslo,University of Oslo,Las Cumbres Observatory Global Telescope Network, Inc,University of California
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- Elias-Rosa, N. (author)
- Istituto nazionale di astrofisica (INAF)
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Fynbo, J. P. U. (author)
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Gorosabel, J. (author)
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- Guaita, L. (author)
- Osservatorio Astronomico di Roma,Niels Bohr Institute,Weizmann Institute of Science
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- Hangard, Laura (author)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University
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Howell, D. A. (author)
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- Hsiao, E. Y. (author)
- Las Campanas Observatory,Århus Universitet,Aarhus University
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- Kankare, E. (author)
- Queen's University Belfast
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- Kasliwal, M. (author)
- Carnegie Observatories
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Leloudas, G. (author)
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- Lundqvist, Peter (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University
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- Mattila, S. (author)
- Turun Yliopisto,University of Turku,University of Southampton
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- Nugent, P. (author)
- University of California,Lawrence Berkeley National Laboratory
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- Phillips, M. M. (author)
- California Institute of Technology (Caltech)
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- Sandberg, Andreas (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University
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- Stanishev, V. (author)
- Instituto Superior Tecnico
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Sullivan, M. (author)
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- Taddia, Francesco (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University
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- Östlin, Göran (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University
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- Asadi, Saghar (author)
- Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm University
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- Herrero-Illana, R. (author)
- Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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Jensen, J. J. (author)
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Karhunen, K. (author)
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- Lazarevic, S. (author)
- Univerzitet u Beogradu,University of Belgrade
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- Varenius, Eskil, 1986 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Santos, P. (author)
- Universitetet i Oslo,University of Oslo
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- Sridhar, S. Seethapuram (author)
- Netherlands Institute for Radio Astronomy (ASTRON),Rijksuniversiteit Groningen,University of Groningen
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- Wallström, Sofia, 1988 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Wiegert, Joachim, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2015-09-07
- 2015
- English.
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In: Monthly notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 453:3, s. 3300-3328
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Abstract
Subject headings
Close
- We present ultraviolet (UV) observations of six nearby Type Ia supernovae (SNe Ia) obtained with the Hubble Space Telescope, three of which were also observed in the near-IR (NIR) with Wide-Field Camera 3. UV observations with the Swift satellite, as well as ground-based optical and NIR data provide complementary information. The combined data set covers the wavelength range 0.2-2 mu m. By also including archival data of SN 2014J, we analyse a sample spanning observed colour excesses up to E(B - V) = 1.4 mag. We study the wavelength-dependent extinction of each individual SN and find a diversity of reddening laws when characterized by the total-to-selective extinction R-V. In particular, we note that for the two SNe with E(B - V) greater than or similar to 1 mag, for which the colour excess is dominated by dust extinction, we find R-V = 1.4 +/- 0.1 and R-V = 2.8 +/- 0.1. Adding UV photometry reduces the uncertainty of fitted R-V by similar to 50 per cent allowing us to also measure R-V of individual low-extinction objects which point to a similar diversity, currently not accounted for in the analyses when SNe Ia are used for studying the expansion history of the Universe.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- circumstellar matter
- supernovae: general
- supernovae: individual: SNe 2012cg
- supernovae: individual: 2012cu
- dust
- extinction
- Physics
- fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Amanullah, Rahma ...
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Johansson, Joel
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Goobar, Ariel
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Ferretti, Raphae ...
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Papadogiannakis, ...
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Petrushevska, Ta ...
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show more...
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Brown, P. J.
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Cao, Y.
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Contreras, C.
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Dahle, H.
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Elias-Rosa, N.
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Fynbo, J. P. U.
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Gorosabel, J.
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Guaita, L.
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Hangard, Laura
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Howell, D. A.
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Hsiao, E. Y.
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Kankare, E.
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Kasliwal, M.
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Leloudas, G.
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Lundqvist, Peter
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Mattila, S.
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Nugent, P.
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Phillips, M. M.
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Sandberg, Andrea ...
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Stanishev, V.
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Sullivan, M.
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Taddia, Francesc ...
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Östlin, Göran
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Asadi, Saghar
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Herrero-Illana, ...
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Jensen, J. J.
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Karhunen, K.
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Lazarevic, S.
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Varenius, Eskil, ...
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Santos, P.
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Sridhar, S. Seet ...
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Wallström, Sofia ...
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Wiegert, Joachim ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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Monthly notices ...
- By the university
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Stockholm University
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Chalmers University of Technology