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Supernova light curves pow ered by young m agnetars
D aniel K asen,Lars Bildsten +1 more
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TLDR
In this article, the authors show that energy injected into an expanding supernova by a highly magnetic (B � 5 � 10 14 G)neutron starspinning at an initial period of Pi 2 20 m scan substantially brightens the lightcurve.Abstract:
W e show thatenergy deposited into an expanding supernova rem nantby a highly m agnetic (B � 5 � 10 14 G)neutron starspinning atan initialperiod of Pi � 2 20 m scan substantially brighten the lightcurve. Form agnetarswith param etersin thisrange,the rotationalenergy isreleased on a tim escaleofdaysto weeks,which iscom parableto theeectivediusion tim ethrough thesupernova rem nant.Thelatetim eenergyinjectioncanthenberadiatedwithoutsueringoverwhelm ingadiabatic expansion losses. The m agnetar input also produces a centralbubble which sweeps ejecta into an internaldense shell,resulting in a prolonged period ofnearly constantphotospheric velocity in the observed spectra.W ederiveanalyticexpressionsforthelightcurverisetim eand peak lum inosity as a function of B, Pi and the propertiesofthe supernova ejecta thatallow fordirectinferencesabout the underlying m agnetar in bright supernovae. W e perform num ericalradiation hydrodynam ical calculations ofa few specic instances and com pare the resulting light curves to observed events. M agnetaractivity is likely to im pact m ore than a few percentofallcore collapse supernovae,and m ay naturally explain som e ofthe brightest events ever seen (e.g.,SN 2005ap and SN 2008es) at L & 10 44 ergss 1 . Subjectheadings: radiativetransfer{ stars:neutron { supernovae:general{ supernovae:individual (SN 2005ap,SN 2008es,SN 2007bi)read more
Citations
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Journal ArticleDOI
Explosion Mechanisms of Core-Collapse Supernovae
TL;DR: The neutrino-heating mechanism, aided by nonradial flows, drives explosions, albeit low-energy ones, of O-Ne-Mg-core and some Fe-core progenitors as mentioned in this paper.
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The Dark Energy Survey: more than dark energy - an overview
T. M. C. Abbott,F. B. Abdalla,Jelena Aleksić,S. Allam,Adam Amara,David Bacon,Eduardo Balbinot,Manda Banerji,Keith Bechtol,A. Benoit-Lévy,A. Benoit-Lévy,Gary Bernstein,E. Bertin,Jonathan Blazek,C. Bonnett,Sarah Bridle,David Brooks,Robert J. Brunner,Robert J. Brunner,E. Buckley-Geer,D. L. Burke,D. L. Burke,G. B. Caminha,Diego Capozzi,J. Carlsen,A. Carnero-Rosell,Marcella Carollo,M. Carrasco-Kind,M. Carrasco-Kind,J. Carretero,J. Carretero,Francisco J. Castander,L. Clerkin,Thomas E. Collett,Christopher J. Conselice,Martin Crocce,Carlos E. Cunha,C. B. D'Andrea,L. N. da Costa,Tamara M. Davis,Shantanu Desai,H. T. Diehl,J. P. Dietrich,Scott Dodelson,Scott Dodelson,Peter Doel,Alex Drlica-Wagner,Juan Estrada,J. Etherington,August E. Evrard,J. Fabbri,D. A. Finley,B. Flaugher,Ryan J. Foley,Pablo Fosalba,Joshua A. Frieman,Joshua A. Frieman,Juan Garcia-Bellido,Enrique Gaztanaga,D. W. Gerdes,Tommaso Giannantonio,Daniel A. Goldstein,Daniel A. Goldstein,Daniel Gruen,Daniel Gruen,Robert A. Gruendl,Robert A. Gruendl,P. Guarnieri,G. Gutierrez,William G. Hartley,K. Honscheid,Bhuvnesh Jain,David J. James,Tesla E. Jeltema,Stephanie Jouvel,Richard Kessler,A. L. King,Donnacha Kirk,Richard G. Kron,Kyler Kuehn,Nikolay Kuropatkin,Ofer Lahav,Tianjun Li,Marcos Lima,Huan Lin,Marcio A. G. Maia,Martin Makler,Marc Manera,Claudia Maraston,Jennifer L. Marshall,Paul Martini,Richard G. McMahon,Peter Melchior,Alex Merson,Christopher J. Miller,Ramon Miquel,Ramon Miquel,Joseph J. Mohr,Xan Morice-Atkinson,Krishna Naidoo,Eric H. Neilsen,Robert C. Nichol,Brian Nord,Ricardo L. C. Ogando,F. Ostrovski,Antonella Palmese,A. Papadopoulos,A. Papadopoulos,Hiranya V. Peiris,John Peoples,Will J. Percival,A. A. Plazas,S. L. Reed,Alexandre Refregier,A. K. Romer,A. Roodman,A. Roodman,Ashley J. Ross,Eduardo Rozo,Eli S. Rykoff,Eli S. Rykoff,I. Sadeh,M. Sako,C. Sánchez,E. J. Sanchez,Basilio X. Santiago,V. Scarpine,Michael Schubnell,I. Sevilla-Noarbe,Erin Sheldon,Mathew Smith,Robert Connon Smith,Marcelle Soares-Santos,Flavia Sobreira,Maayane T. Soumagnac,E. Suchyta,Mark Sullivan,M. E. C. Swanson,G. Tarle,Jon J Thaler,Daniel Thomas,Daniel Thomas,R. C. Thomas,Douglas L. Tucker,Joaquin Vieira,Joaquin Vieira,Vinu Vikram,Alistair R. Walker,Risa H. Wechsler,Risa H. Wechsler,Jochen Weller,W. C. Wester,L. Whiteway,H. Wilcox,Brian Yanny,Yanming Zhang,Joe Zuntz +156 more
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Hydrogen-poor superluminous stellar explosions
R. M. Quimby,Shrinivas R. Kulkarni,Mansi M. Kasliwal,Avishay Gal-Yam,Iair Arcavi,Mark Sullivan,Peter Nugent,R. C. Thomas,D. A. Howell,D. A. Howell,Ehud Nakar,Lars Bildsten,Lars Bildsten,Christopher A. Theissen,Nicholas M. Law,Nicholas M. Law,Richard Dekany,Gustavo Rahmer,David Hale,Roger Smith,Eran O. Ofek,Jeffry Zolkower,Viswa Velur,Robert J. Walters,John Henning,K. Bui,D. McKenna,Dovi Poznanski,Dovi Poznanski,S. B. Cenko,David Levitan +30 more
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References
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Journal ArticleDOI
Supernova 2007bi as a pair-instability explosion.
Avishay Gal-Yam,Paolo A. Mazzali,Eran O. Ofek,Peter Nugent,Shrinivas R. Kulkarni,Mansi M. Kasliwal,R. M. Quimby,Alexei V. Filippenko,S. B. Cenko,Ryan Chornock,Roni Waldman,Daniel Kasen,Mark Sullivan,E. C. Beshore,Andrew J. Drake,R. C. Thomas,Joshua S. Bloom,Dovi Poznanski,Adam A. Miller,Ryan J. Foley,J. M. Silverman,Iair Arcavi,Richard S. Ellis,J. Deng +23 more
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