2016MNRAS.461L.117E

Query : 2016MNRAS.461L.117E

2016MNRAS.461L.117E - Mon. Not. R. Astron. Soc., 461, L117-L121 (2016/September-1)

The disappearance of the helium-giant progenitor of the Type Ib supernova iPTF13bvn and constraints on its companion.

ELDRIDGE J.J. and MAUND J.R.

Abstract (from CDS):

We report and discuss post-explosion observations of supernova iPTF13bvn. We find that the brightness of the supernova (SN) at +740 d is below the level of the pre-explosion source and thus confirm that the progenitor has exploded. We estimate that the late-time brightness is still dominated by the SN, which constrains the magnitude and thus mass of a possible companion star to below approximately 10 M_☉. In turn, this implies that the progenitor's initial mass is constrained to a narrow range between 10 and 12 M_☉. The progenitor of iPTF13bvn would have been a helium giant rather than a Wolf-Rayet star. In addition, we suggest that sufficiently deep observations acquired in 2016 would now stand a chance to directly observe the companion star.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): binaries: general - stars: evolution - stars: massive - supernovae: general - supernovae: individual: iPTF13bvn - supernovae: individual: iPTF13bvn

Simbad objects: 4

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Number of rows : 4
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 1994I SN* 13 29 54.072 +47 11 30.50     12.9     SNIc 645 1
2 SN 2011dh SN* 13 30 05.10555 +47 10 10.9227           SNIIb 445 1
3 iPTF 13bvn SN* 15 00 00.152 +01 52 53.17           SNIb 211 0
4 NGC 5806 Sy2 15 00 00.4088018736 +01 53 28.779594792   12.40 11.70 10.94 11.6 ~ 305 1

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