Sign on

SAO/NASA ADS Astronomy Abstract Service


· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· arXiv e-print (arXiv:0803.0871)
· On-line Data
· References in the article
· Citations to the Article (12) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (9)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Properties of the ultraviolet flux of Type Ia supernovae: an analysis with synthetic spectra of SN 2001ep and SN 2001eh
Authors:
Sauer, D. N.; Mazzali, P. A.; Blondin, S.; Stehle, M.; Benetti, S.; Challis, P.; Filippenko, A. V.; Kirshner, R. P.; Li, W.; Matheson, T.
Affiliation:
AA(Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Str. 1, 85748 Garching, Germany; Kavli Institute for Theoretical Physics, University of California, Santa Barbara, CA 93106-4030, USA), AB(Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Str. 1, 85748 Garching, Germany; Istituto Nazionale di Astrofisica-OAPd, vicolo dell'Osservatorio 5, 35122 Padova, Italy; Kavli Institute for Theoretical Physics, University of California, Santa Barbara, CA 93106-4030, USA), AC(European Southern Observatory, Karl-Schwarzschild-Str. 2, 85748 Garching, Germany; Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA; Kavli Institute for Theoretical Physics, University of California, Santa Barbara, CA 93106-4030, USA), AD(Max-Planck-Institut für Astrophysik, Karl-Schwarzschild-Str. 1, 85748 Garching, Germany), AE(Istituto Nazionale di Astrofisica-OAPd, vicolo dell'Osservatorio 5, 35122 Padova, Italy), AF(Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA), AG(Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA), AH(Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA; Kavli Institute for Theoretical Physics, University of California, Santa Barbara, CA 93106-4030, USA), AI(Department of Astronomy, University of California, Berkeley, CA 94720-3411, USA), AJ(National Optical Astronomy Observatory, 950 N. Cherry Avenue, Tucson, AZ 85719-4933, USA)
Publication:
Monthly Notices of the Royal Astronomical Society, Volume 391, Issue 4, pp. 1605-1618. (MNRAS Homepage)
Publication Date:
12/2008
Origin:
MNRAS
MNRAS Keywords:
radiative transfer , supernovae: general , supernovae: individual: SN2001ep , supernovae: individual: SN 2001eh , cosmology: observations
DOI:
10.1111/j.1365-2966.2008.14018.x
Bibliographic Code:
2008MNRAS.391.1605S

Abstract

The spectral properties of Type Ia supernovae in the ultraviolet (UV) are investigated using the early-time spectra of SN 2001ep and SN 2001eh obtained using the Hubble Space Telescope. A series of spectral models is computed with a Monte Carlo spectral synthesis code, and the dependence of the UV flux on the elemental abundances and the density gradient in the outer layers of the ejecta is tested. A large fraction of the UV flux is formed by reverse-fluorescence scattering of photons from red to blue wavelengths. This process, combined with ionization shifts due to enhanced line blocking, can lead to a stronger UV flux as the iron-group abundance in the outer layers is increased, contrary to previous claims.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints