Roger A. Chevalier
University of Virginia
288 Papers
3K Citations
Roger A. Chevalier is an academic researcher from University of Virginia. The author has contributed to research in topics: Supernova & Supernova remnant. The author has an hindex of 87, co-authored 284 publications. Previous affiliations of Roger A. Chevalier include Kitt Peak National Observatory & Advanced Technology Center.
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Papers
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A Wolf in Sheepskin: Extraordinary Supernova 2012au Veiled Behind Ordinary Radio Emission
Atish Kamble,Alicia M. Soderberg,Laura Chomiuk,Raffaella Margutti,Mikhail V. Medvedev,Sayan Chakraborti,Roger A. Chevalier,Nikolai Chugai,Jason A. Dittmann,Maria R. Drout,Claes Fransson,Dan Milisavljevic,Ehud Nakar,Nathan Edward Sanders +13 more
TL;DR: In this paper, the radio and X-ray observations of SN\, 2012au, the energetic radio luminous supernova of type Ib that may be a link between subsets of hydrogen-poor superluminous and normal core-collapse supernovae were presented.
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Type IIB Supernovae with Compact and Extended Progenitors
TL;DR: The classic example of a Type IIb supernova is SN 1993J, which had a cool extended progenitor surrounded by a dense wind as discussed by the authors, and it is known as the Cas A supernova.
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Spectroscopy of the Crab nebula.
TL;DR: In this paper, a detailed inspection of a spectrogram of the Crab nebula covering wavelengths 4450-6100 reveals the presence of faint forbidden lines of iron and nitrogen, most of which have not been observed before in the Crab.
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A Spitzer Survey for Dust in Type IIn Supernovae
Ori D. Fox,Roger A. Chevalier,Michael F. Skrutskie,Alicia M. Soderberg,Alexei V. Filippenko,Mohan Ganeshalingam,Jeffrey M. Silverman,Nathan Smith,Nathan Smith,Thea N. Steele +9 more
TL;DR: In this paper, the authors present results from a warm Spitzer/IRAC survey of the positions of all known SNe IIn within a distance of 250 Mpc between 1999 and 2008 that have remained unobserved by Spitzer more than 100 days post-discovery.
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X-Ray Line Emission from Supernova Remnants and Models for Nonequilibrium Ionization
Craig L. Sarazin,Andrew J. S. Hamilton,Roger A. Chevalier +2 more
- 01 Jan 1983
TL;DR: In this article, an extensive grid of nonequilibrium ionization models for the X-ray spectra of adiabatic supernova remnants (SNRs) is described, and the results of UV observations of a star behind SNR 1006 are mentioned; these observations show that the remnant contains a large amount of rapidly moving cold iron.
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