N
Nino Panagia
Researcher at Space Telescope Science Institute
Publications - 483
Citations - 52007
Nino Panagia is an academic researcher from Space Telescope Science Institute. The author has contributed to research in topics: Supernova & Galaxy. The author has an hindex of 89, co-authored 478 publications receiving 48961 citations. Previous affiliations of Nino Panagia include Cornell University & University of Catania.
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Journal ArticleDOI
Radio Supernovae as Distance Indicators
TL;DR: In this paper, the radio emission from supernovae with the Very Large Array (VLA) was studied and the radio light curves evolved in a systematic fashion with a distinct peak flux density at each frequency and a well-defined time from explosion to that peak.
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A Hubble Space Telescope Ultraviolet Spectrum of SN 1993J
David J. Jeffery,Robert P. Kirshner,Peter M. Challis,Chun S. J. Pun,Alexei V. Filippenko,Thomas Matheson,David Branch,Roger A. Chevalier,Claes Fransson,Nino Panagia,Nino Panagia,Robert V. Wagoner,J. Craig Wheeler,A. Clocchiatti +13 more
TL;DR: In this article, the authors obtained a Hubble Space Telescope (HST) ultraviolet spectrum of the Type II supernova SN 1993J in M81 on 1993 April 15, and the approximately 1650-2900 A region is smoother than observed for SN 1987A and SN 1992A and lacks strong P Cygni absorptions caused by iron peak element lines.
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Radio Observations of SN 1980K: Evidence for Rapid Presupernova Evolution
TL;DR: In this article, it is suggested that the decrease in radio emission may be due to the SN shock entering a new region of the circumstellar material which has a lower density than that expected for a constant speed (w), constant mass loss rate (Mdot) wind from the progenitor.
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The destruction of the circumstellar ring of sn 1987a
Claes Fransson,Josefin Larsson,K. Migotto,Dominic W. Pesce,Peter Challis,Roger A. Chevalier,Robert P. Kirshner,Bruno Leibundgut,Peter Lundqvist,Richard McCray,Jason Spyromilio,Francesco Taddia,Anders Jerkstrand,Seppo Mattila,Nathan Smith,Jesper Sollerman,J. Craig Wheeler,Arlin P. S. Crotts,Peter M. Garnavich,Kevin Heng,Stephen S. Lawrence,Nino Panagia,Nino Panagia,Chun S. J. Pun,George Sonneborn,Ben Sugerman +25 more
TL;DR: In this article, the authors presented imaging and spectroscopic observations with HST and VLT of the ring of SN 1987A from 1994 to 2014, which indicated that the interaction with the supernova ejecta is now gradually dissolving the hotspots.
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Subluminous, Radio Emitting Type I Supernovae
TL;DR: SN1984l dans NGC 991 est un supernova de type I sous lumineuse semblable a SN 1983n, representant une sous-classe distincte par la detection d'une emission radio.