2018MNRAS.481L.141K

Query : 2018MNRAS.481L.141K

2018MNRAS.481L.141K - Mon. Not. R. Astron. Soc., 481, L141-L145 (2018/November-3)

Helium giant stars as progenitors of rapidly fading Type Ibc supernovae.

KLEISER I., FULLER J. and KASEN D.

Abstract (from CDS):

Type I rapidly fading supernovae (RFSNe) appear to originate from hydrogen-free stars with large radii that produce predominantly shock-cooling light curves, in contrast with more typical 56 Ni-rich SNe Ibc. However, it remains to be determined what types of stars would produce bright shock-cooling light curves without significant contribution from radioactive nickel. Bare helium stars in the mass range ∼2-4 M_☉are known to hydrostatically develop radii as large as 100 R_☉or more due to strong He and C shell burning outside of a core with a sharp density gradient. We produce several such stellar models and demonstrate that, when exploded, these helium giants can naturally produce RFSN light curves. Since many prototypical SNe Ibc should come from large-radius stars in this mass range as well, we predict that these RFSNe may be distinct from SNe Ibc solely due to the absence of substantial 56 Ni.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): binaries: general - supernovae: general - supernovae: individual: SN 2010X

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 SN 2010X SN* 04 48 27.90 +73 28 14.8           SNIc 85 1

Query : 2018MNRAS.481L.141K

Basic data :
SN 2010X -- SuperNova
Other object types: otypes_help 		SN* (SN)
ICRS coord. (ep=J2000) : 		04 48 27.90 +73 28 14.8 [ ] D 2008yCat....1.2024B
FK4 coord. (ep=B1950 eq=1950) : 		04 42 21.49 +73 22 54.5 [ ]
Gal coord. (ep=J2000) : 		137.82350 +17.92090 [ ]
Spectral type: 		SNIc C 2008yCat....1.2024B
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SN 2010X PTF 10bhp

References (85 between 1850 and 2026) (Total 85)
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