PMO OpenIR  > 南极天文中心
SWIFT ULTRAVIOLET OBSERVATIONS OF SUPERNOVA 2014J IN M82: LARGE EXTINCTION FROM INTERSTELLAR DUST
Brown, Peter J.1; Smitka, Michael T.1; Wang, Lifan1,2; Breeveld, Alice3; de Pasquale, Massimiliano4; Hartmann, Dieter H.5; Krisciunas, Kevin1; Kuin, N. Paul3; Milne, Peter A.6; Page, Mat3; Siegel, Michael7
2015-05-20
Source PublicationASTROPHYSICAL JOURNAL
Volume805Issue:1Pages:74
AbstractWe present optical and ultraviolet (UV) photometry and spectra of the very nearby and highly reddened supernova (SN) 2014J in M82 obtained with the Swift Ultra-Violet/Optical Telescope (UVOT). Comparison of the UVOT grism spectra of SN 2014J with Hubble Space Telescope observations of SN2011fe or UVOT grism spectra of SN 2012fr are consistent with an extinction law with a low value of R-V similar to 1.4. The high reddening causes the detected photon distribution in the broadband UV filters to have a much longer effective wavelength than for an unreddened SN. The light curve evolution is consistent with this shift and does not show a flattening due to photons being scattered back into the line of sight (LOS). The light curve shapes and color evolution are inconsistent with a contribution scattered into the LOS by circumstellar dust. We conclude that most or all of the high reddening must come from interstellar dust. We show that even for a single dust composition, there is not a unique reddening law caused by circumstellar scattering. Rather, when considering scattering from a time-variable source, we confirm earlier studies that the reddening law is a function of the dust geometry, column density, and epoch. We also show how an assumed geometry of dust as a foreground sheet in mixed stellar/dust systems will lead to a higher inferred RV. Rather than assuming the dust around SNe is peculiar, SNe may be useful probes of the interstellar reddening laws in other galaxies.
KeywordDust, Extinction Supernovae: General Supernovae: Individual (Sn2014j, Sn2011fe, Sn2012fr)
Subject Area天文和天体物理
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-637X/805/1/74
WOS KeywordHUBBLE-SPACE-TELESCOPE ; SMALL-MAGELLANIC-CLOUD ; IA LIGHT CURVES ; SN 2014J ; ABSOLUTE MAGNITUDES ; CIRCUMSTELLAR DUST ; DECLINE RATE ; TIME-SERIES ; GALAXY M82 ; MILKY-WAY
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000354991300074
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/14884
Collection南极天文中心
Affiliation1.Texas A&M Univ, Dept Phys & Astron, George P & Cynthia Woods Mitchell Inst Fundamenta, TAMU 4242, College Stn, TX 77843 USA
2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England
4.Inst Astrophys Spatiale & Fis Cosm Palermo, I-90146 Palermo, Italy
5.Clemson Univ, Dept Phys & Astron, Kinard Lab Phys, Clemson, SC 29634 USA
6.Univ Arizona, Steward Observ, Tucson, AZ 85719 USA
7.Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA
Recommended Citation
GB/T 7714
Brown, Peter J.,Smitka, Michael T.,Wang, Lifan,et al. SWIFT ULTRAVIOLET OBSERVATIONS OF SUPERNOVA 2014J IN M82: LARGE EXTINCTION FROM INTERSTELLAR DUST[J]. ASTROPHYSICAL JOURNAL,2015,805(1):74.
APA Brown, Peter J..,Smitka, Michael T..,Wang, Lifan.,Breeveld, Alice.,de Pasquale, Massimiliano.,...&Siegel, Michael.(2015).SWIFT ULTRAVIOLET OBSERVATIONS OF SUPERNOVA 2014J IN M82: LARGE EXTINCTION FROM INTERSTELLAR DUST.ASTROPHYSICAL JOURNAL,805(1),74.
MLA Brown, Peter J.,et al."SWIFT ULTRAVIOLET OBSERVATIONS OF SUPERNOVA 2014J IN M82: LARGE EXTINCTION FROM INTERSTELLAR DUST".ASTROPHYSICAL JOURNAL 805.1(2015):74.
Files in This Item:
File Name/Size DocType Version Access License
2015064.pdf(522KB) 开放获取Apache LicenseView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Brown, Peter J.]'s Articles
[Smitka, Michael T.]'s Articles
[Wang, Lifan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Brown, Peter J.]'s Articles
[Smitka, Michael T.]'s Articles
[Wang, Lifan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Brown, Peter J.]'s Articles
[Smitka, Michael T.]'s Articles
[Wang, Lifan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 2015064.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.