2008MNRAS.391L...5C

Query : 2008MNRAS.391L...5C

2008MNRAS.391L...5C - Mon. Not. R. Astron. Soc., 391, L5-L9 (2008/November-3)

The type IIb SN 2008ax: the nature of the progenitor.

CROCKETT R.M., ELDRIDGE J.J., SMARTT S.J., PASTORELLO A., GAL-YAM A., FOX D.B., LEONARD D.C., KASLIWAL M.M., MATTILA S., MAUND J.R., STEPHENS A.W. and DANZIGER I.J.

Abstract (from CDS):

A source coincident with the position of the type IIb supernova (SN) 2008ax is identified in pre-explosion Hubble Space Telescope (HST) Wide Field Planetary Camera 2 observations in three optical filters. We identify and constrain two possible progenitor systems: (i) a single massive star that lost most of its hydrogen envelope through radiatively driven mass-loss processes, prior to exploding as a helium-rich Wolf-Rayet star with a residual hydrogen envelope, and (ii) an interacting binary in a low-mass cluster producing a stripped progenitor. Late time, high-resolution observations along with detailed modelling of the SN will be required to reveal the true nature of this progenitor star.

Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): supernovae: individual: SN 2008ax - galaxies: individual: NGC 4490

Simbad objects: 12

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Number of rows : 12
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 SN 2003gd SN* 01 36 42.65 +15 44 19.9     13.2     SNIIP 267 2
3 SN 2007gr SN* 02 43 27.98 +37 20 44.7       12.77   SNIc 265 1
4 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
5 2MASS J07371703+6535579 HXB 07 37 17.0432126424 +65 35 57.826001220           SNIIP 317 1
6 SN 1993J SN* 09 55 24.77476 +69 01 13.7026   10.8 12.0     SNIIb 1507 1
7 SN 2003dh SN* 10 44 50.030 +21 31 18.15     16.2     SNIcpec 1261 1
8 NGC 4490 GiG 12 30 34.5 +41 38 26 10.03 10.22 9.79     ~ 616 3
9 SN 2008ax SN* 12 30 40.80 +41 38 16.1   23.6 23.5 14.1 22.6 SNIIb 295 1
10 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
11 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
12 SN 2001ig SN* 22 57 30.69 -41 02 25.9     14.5     SNIIb 190 1

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