D
Daniel Kasen
Researcher at Lawrence Berkeley National Laboratory
Publications - 15
Citations - 986
Daniel Kasen is an academic researcher from Lawrence Berkeley National Laboratory. The author has contributed to research in topics: Supernova & Ejecta. The author has an hindex of 12, co-authored 15 publications receiving 919 citations. Previous affiliations of Daniel Kasen include University of California, Berkeley & University of Oklahoma.
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Journal ArticleDOI
Spectropolarimetry of SN 2001el in NGC 1448: Asphericity of a normal type Ia supernova
Lifan Wang,Dietrich Baade,Peter Höflich,Alexei Khokhlov,J. Craig Wheeler,Daniel Kasen,Peter Nugent,Saul Perlmutter,Claes Fransson,Peter Lundqvist +9 more
TL;DR: In this article, a double-troughed absorption feature seen around 800 nm (FWHM about 22 nm) was identified for Type Ia supernova (SN Ia) 2001el with the ESO Very Large Telescope Melipal +FORS1 at five epochs.
Journal ArticleDOI
Analysis of the Flux and Polarization Spectra of the Type Ia Supernova SN 2001el: Exploring the Geometry of the High-Velocity Ejecta
Daniel Kasen,Peter Nugent,Lifan Wang,Dale Andrew Howell,J. Craig Wheeler,Peter Höflich,Dietrich Baade,E. Baron,Peter H. Hauschildt +8 more
TL;DR: In this article, the authors used a three-dimensional synthetic polarization spectra to constrain the ejecta geometry and generate polarization profiles for several parameterized configurations of the supernova ejecta.
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Spectroscopic observations and analysis of the peculiar SN 1999aa
G. Garavini,Gastón Folatelli,Ariel Goobar,S. Nobili,Greg Aldering,Greg Aldering,Alexis Amadon,Rahman Amanullah,Pierre Astier,Christophe Balland,Christophe Balland,G. Blanc,G. Blanc,M. S. Burns,A. Conley,A. Conley,A. Conley,Tomas Dahlen,Susana E. Deustua,Susana E. Deustua,Richard S. Ellis,Sebastien Fabbro,Xiaohui Fan,Brenda Frye,E. L. Gates,R. Gibbons,Gerson Goldhaber,Gerson Goldhaber,Bertrand Goldman,Donald E. Groom,J. Haissinski,D. Hardin,I. M. Hook,Dale Andrew Howell,Daniel Kasen,Steve Kent,Alex G. Kim,R. A. Knop,Brian C. Lee,Christopher Lidman,Javier Méndez,G. J. Miller,G. J. Miller,M. Moniez,A. Mourao,Heidi Jo Newberg,Peter Nugent,Reynald Pain,O. Perdereau,Saul Perlmutter,V. Prasad,Robert Quimby,J. Raux,N. Regnault,Jeffrey A. Rich,Gordon T. Richards,Pilar Ruiz-Lapuente,G. Sainton,Bradley E. Schaefer,K. Schahmaneche,E. Smith,A. L. Spadafora,Vallery Stanishev,Nicholas A. Walton,L. Wang,W. M. Wood-Vasey,W. M. Wood-Vasey +66 more
TL;DR: In this paper, an extensive time series of spectroscopic data of the peculiar SN 1999aa in NGC 2595 is presented, including 25 optical spectra between -11 and +58 days with respect to B-band maximum light, providing an unusually complete time history.
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Reading the Spectra of the Most Peculiar Type Ia Supernova 2002cx
TL;DR: In this article, the authors used the supernova synthetic-spectrum code SYNOW to study line identifications in SN 2002cx and found that the maximum-light spectra appeared to contain weak features of Si ii, S ii, Si iii, and Ca ii, which strengthened the connection with SN 1991T-like events.
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Could there be a hole in type Ia supernovae
TL;DR: In this article, the authors use multi-dimensional Monte Carlo radiative transfer calculations to explore the observable consequences of an ejecta-hole asymmetry in Type Ia supernovae, and calculate the variation of the spectrum, luminosity and polarization with viewing angle for the aspherical supernova near maximum light.