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
Ambient Interaction Models for γ-Ray Burst Afterglows
Zhi-Yun Li,Roger A. Chevalier +1 more
- 01 Jan 2003
TL;DR: In this paper, the authors review ambient interaction models for γ-ray burst afterglows, with an eye on constraining the nature of the progenitors and the geometry of the explosion.
A Panchromatic View of the Restless SN 2009ip Reveals the Explosive Ejection of a Massive Star Envelope
Raffaella Margutti,Dan Milisavljevic,Alicia M. Soderberg,Ryan Chornock,B. A. Zauderer,Kohta Murase,C. Guidorzi,Nathan Edward Sanders,Paul Kuin,Claes Fransson,Emily M. Levesque,Poonam Chandra,Edo Berger,Federica B. Bianco,Peter J. Brown,Peter Challis,Emmanouil Chatzopoulos,C. C. Cheung,Changsu Choi,Laura Chomiuk,Laura Chomiuk,N. N. Chugai,Carlos Contreras,Maria R. Drout,Robert A. Fesen,Ryan J. Foley,Wen-fai Fong,Andrew S. Friedman,Andrew S. Friedman,C. Gall,C. Gall,N. Gehrels,Jens Hjorth,Eric Hsiao,Robert P. Kirshner,Myungshin Im,Giorgos Leloudas,Giorgos Leloudas,Ragnhild Lunnan,G. H. Marion,John Martin,Nidia Morrell,Kathryn F. Neugent,Nicola Omodei,Mark M. Phillips,Armin Rest,Jeffrey M. Silverman,Jay Strader,Maximilian Stritzinger,Tamás Szalai,N. B. Utterback,Jozsef Vinko,Jozsef Vinko,John C Wheeler,David Arnett,Sergio Campana,Roger A. Chevalier,Adam Ginsburg,Atish Kamble,P. W. A. Roming,P. W. A. Roming,T. A. Pritchard,Guy S. Stringfellow +62 more
TL;DR: The double explosion of SN 2009ip in 2012 raises questions about our understanding of the late stages of massive star evolution as discussed by the authors, which can be connected with documented mass-loss episodes in the previous years.
X-Ray Observations of Type Ia Supernovae with Swift: Evidence of Circumstellar Interaction for SN 2005ke
Stefan Immler,Stefan Immler,Peter J. Brown,Peter Milne,Robert Petre,N. Gehrels,David N. Burrows,J. A. Nousek,Christopher L. Williams,Elena Pian,P. A. Mazzali,K. Nomoto,Roger A. Chevalier,V. Mangano,Stephen T. Holland,Stephen T. Holland,P. W. A. Roming,Jochen Greiner,D. Pooley +18 more
TL;DR: In this article, the early X-ray and UV properties of eight Type Ia supernovae (SNe Ia) have been extensively observed with the X-Ray Telescope and UV/Optical Telescope (UVOT) on board Swift, ranging from 5 to 132 days after the outburst.
Type I supernovae and galactic production of iron
TL;DR: In this paper, it was shown that Fe may have a different source from other heavy elements in type I supernovae which result from the deaths of moderately long-lived stars.
A novel explosive process is required for the γ-ray burst GRB 060614
Avishay Gal-Yam,D. B. Fox,P. A. Price,Eran O. Ofek,M. R. Davis,Douglas C. Leonard,Alicia M. Soderberg,Brian P. Schmidt,Karen Michelle Lewis,Bruce A. Peterson,Shrinivas R. Kulkarni,Edo Berger,Edo Berger,Stephen Bradley Cenko,Re'em Sari,Keren Sharon,Dale A. Frail,D.-S. Moon,Peter J. Brown,Antonino Cucchiara,Fiona A. Harrison,Tsvi Piran,S E Persson,S E Persson,Patrick J McCarthy,Patrick J McCarthy,Bryan E. Penprase,Roger A. Chevalier,Andrew MacFadyen +28 more
TL;DR: In this paper, the authors report optical observations of GRB 060614 (duration ~100 s) that rule out the presence of an associated supernova, and also show that the properties of the host galaxy (redshift z = 0.125) distinguish it from other long-duration GRB hosts and suggest that an entirely new type of long-lived GRB progenitor may be required.