2011A&A...527L...6P


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.04CEST02:09:00

2011A&A...527L...6P - Astronomy and Astrophysics, volume 527, L6-6 (2011/3-1)

Asymmetries in the type IIn SN 2010jl.

PATAT F., TAUBENBERGER S., BENETTI S., PASTORELLO A. and HARUTYUNYAN A.

Abstract (from CDS):

We study possible signs of asymmetry in the luminous type IIn SN 2010jl, to obtain independent information about its explosion geometry. We performed optical linear spectropolarimetry of SN 2010jl two weeks after the discovery, in the spectral range 3700-8800Å. The object exhibits a continuum polarization at a very significant and almost constant level (1.7-2.0%). Distinctive line depolarization is seen at the positions of the strongest emission features, such as Hα and Hβ. This implies that the line forming region is well above the photosphere. The continuum polarization level (1.7-2.0%) indicates a substantial asphericity, of axial ratio ≤0.7. The almost complete depolarization seen at Hα is indicative of a very low level of interstellar polarization (≤0.3%). This rules out the presence of relevant amounts of dust in the progenitor environment at the time of our observations. From a polarimetric point of view, SN 2010jl appears to be very similar to the two other well-studied type IIn SNe 1997eg and 1998S, establishing a strong link between members of this class of objects.

Abstract Copyright:

Journal keyword(s): supernovae: general - supernovae: individual: SN 2010jl - dust, extinction - techniques: polarimetric

Simbad objects: 9

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Number of rows : 9

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 HD 236928 * 02 02 42.0926399205 +60 15 26.434612498   10.00 9.07     A4Ib 71 0
2 HD 14069 * 02 16 45.1906517044 +07 41 10.686704586   9.21 9.06     A0 38 0
3 UGC 5189 A G 09 42 53.26 +09 29 34.4   13.7       ~ 38 0
4 SN 2010jl SN* 09 42 53.33 +09 29 41.8           SNIIn 188 1
5 SN 1988Z SN* 10 51 50.10 +16 00 00.5   16.8       SNIIn 336 1
6 SN 2007rt SN* 11 02 34.29 +50 34 58.5     16.8     SNIIn 24 1
7 SN 1998S SN* 11 46 06.13 +47 28 55.4     12.2     SNIIn 375 1
8 SN 2007eg SN* 13 09 50.61 +20 44 38.7       19.3   SNIa 8 1
9 SN 1997eg SN* 13 11 36.73 +22 55 29.4     15.6     SNIIn 65 1

    Equat.    Gal    SGal    Ecl

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2020.07.04-02:09:00

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