LOW RV FROM CIRCUMSTELLAR DUST AROUND SUPERNOVAE

被引：125

作者：

Goobar, Ariel ^{[1
]}

机构：

[1] Stockholm Univ, Dept Phys, AlbaNova Univ Ctr, SE-10691 Stockholm, Sweden

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2008年 / 686卷 / 02期

关键词：

dust; extinction; supernovae: general;

D O I：

10.1086/593060

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The effective extinction law for supernovae surrounded by circumstellar dust is examined with Monte Carlo simulations. Grains with light scattering properties as for interstellar dust in the Milky Way (MW) or the Large Magellanic Clouds (LMC), but surrounding the explosion site, would cause a semidiffusive propagation of light up to the edge of the dust shell. Multiple scattering of photons predominantly attenuates photons with shorter wavelengths, thus steepening the effective extinction law as compared to the case of single scattering in the interstellar medium. Our simulations yield typical values for the total-to-selective extinction ratio, R-V similar to 1.5-2.5 as seen in recent studies of Type Ia supernova colors, with a steepening differential extinction toward shorter wavelengths.

引用

页码：L103 / L106

页数：4

共 21 条

[1] Optical properties of deep ice at the South Pole: Absorption
Askebjer, P
Barwick, SW
Bergstrom, L
Bouchta, A
Carius, S
Dalberg, E
Engel, K
Erlandsson, B
Goobar, A
Gray, L
Hallgren, A
Halzen, F
Heukenkamp, H
Hulth, PO
Hundertmark, S
Jacobsen, J
Karle, A
Kandhadai, V
Liubarsky, I
Lowder, D
Miller, T
Mock, P
Morse, RM
Porrata, R
Price, PB
Richards, A
Rubinstein, H
Schneider, E
Spiering, C
Streicher, O
Sun, Q
Thon, T
Tilav, S
Wischnewski, R
Walck, C
Yodh, GB
[J]. APPLIED OPTICS, 1997, 36 (18) : 4168 - 4180
[2] The Supernova Legacy Survey:: measurement of ΩM, ΩΛ and w from the first year data set
Astier, P
Guy, J
Regnault, N
Pain, R
Aubourg, E
Balam, D
Basa, S
Carlberg, RG
Fabbro, S
Fouchez, D
Hook, IM
Howell, DA
Lafoux, H
Neill, JD
Palanque-Delabrouille, N
Perrett, K
Pritchet, CJ
Rich, J
Sullivan, M
Taillet, R
Aldering, G
Antilogus, P
Arsenijevic, V
Balland, C
Baumont, S
Bronder, J
Courtois, H
Ellis, RS
Filiol, M
Gonçalves, AC
Goobar, A
Guide, D
Hardin, D
Lusset, V
Lidman, C
McMahon, R
Mouchet, M
Mourao, A
Perlmutter, S
Ripoche, P
Tao, C
Walton, N
[J]. ASTRONOMY & ASTROPHYSICS, 2006, 447 (01) : 31 - U31
[3] THE RELATIONSHIP BETWEEN INFRARED, OPTICAL, AND ULTRAVIOLET EXTINCTION
CARDELLI, JA
CLAYTON, GC
MATHIS, JS
[J]. ASTROPHYSICAL JOURNAL, 1989, 345 (01) : 245 - 256
[4] Stochastic problems in physics and astronomy
Chandrasekhar, S
[J]. REVIEWS OF MODERN PHYSICS, 1943, 15 (01) : 0001 - 0089
[5] Scattering by interstellar dust grains. I. Optical and ultraviolet
Draine, BT
[J]. ASTROPHYSICAL JOURNAL, 2003, 598 (02) : 1017 - 1025
[6] SN 2002cv: a heavily obscured Type Ia supernova
Elias-Rosa, N.
Benetti, S.
Turatto, M.
Cappellaro, E.
Valenti, S.
Arkharov, A. A.
Beckman, J. E.
Di Paola, A.
Dolci, M.
Filippenko, A. V.
Foley, R. J.
Krisciunas, K.
Larionov, V. M.
Li, W.
Meikle, W. P. S.
Pastorello, A.
Valentini, G.
Hillebrandt, W.
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2008, 384 (01) : 107 - 122
[7] Anomalous extinction behaviour towards the type Ia SN 2003cg
Elias-Rosa, N.
Benetti, S.
Cappellaro, E.
Turatto, M.
Mazzali, P. A.
Patat, F.
Meikle, W. P. S.
Stehle, M.
Pastorello, A.
Pignata, G.
Kotak, R.
Harutyunyan, A.
Altavilla, G.
Navasardyan, H.
Qiu, Y.
Salvo, M.
Hillebrandt, W.
[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 369 (04) : 1880 - 1900
[8] SALT: a spectral adaptive light curve template for type la supernovae
Guy, J
Astier, P
Nobili, S
Regnault, N
Pain, R
[J]. ASTRONOMY & ASTROPHYSICS, 2005, 443 (03) : 781 - 791
[9] Diffuse radiation in the galaxy
Henyey, LG
Greenstein, JL
[J]. ASTROPHYSICAL JOURNAL, 1941, 93 (01) : 70 - 83
[10] KOWALSKI M, 2008, APJ IN PRESS

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