2020ApJ...899...51S

Query : 2020ApJ...899...51S

2020ApJ...899...51S - Astrophys. J., 899, 51-51 (2020/August-2)

Early ultraviolet observations of Type IIn supernovae constrain the asphericity of their circumstellar material.

SOUMAGNAC M.T., OFEK E.O., LIANG J., GAL-YAM A., NUGENT P., YANG Y., CENKO S.B., SOLLERMAN J., PERLEY D.A., ANDREONI I., BARBARINO C., BURDGE K.B., BRUCH R.J., DE K., DUGAS A., FREMLING C., GRAHAM M.L., HANKINS M.J., STROTJOHANN N.L., MORAN S., NEILL J.D., SCHULZE S., SHUPE D.L., SIPOCZ B.M., TAGGART K., TARTAGLIA L., WALTERS R., YAN L., YAO Y., YARON O., BELLM E.C., CANNELLA C., DEKANY R., DUEV D.A., FEENEY M., FREDERICK S., GRAHAM M.J., LAHER R.R., MASCI F.J., KASLIWAL M.M., KOWALSKI M., KUPFER T., MILLER A.A., RIGAULT M. and RUSHOLME B.

Abstract (from CDS):

We present a survey of the early evolution of 12 Type IIn supernovae (SNe IIn) at ultraviolet and visible light wavelengths. We use this survey to constrain the geometry of the circumstellar material (CSM) surrounding SN IIn explosions, which may shed light on their progenitor diversity. In order to distinguish between aspherical and spherical CSM, we estimate the blackbody radius temporal evolution of the SNe IIn of our sample, following the method introduced by Soumagnac et al. We find that higher-luminosity objects tend to show evidence for aspherical CSM. Depending on whether this correlation is due to physical reasons or to some selection bias, we derive a lower limit between 35% and 66% for the fraction of SNe IIn showing evidence for aspherical CSM. This result suggests that asphericity of the CSM surrounding SNe IIn is common-consistent with data from resolved images of stars undergoing considerable mass loss. It should be taken into account for more realistic modeling of these events.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Supernovae

Simbad objects: 28

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Number of rows : 28
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 2005gl SN* 00 49 50.02 +32 16 56.8       17.0   SNIIn 162 2
2 SN 2006qq SN* 05 19 50.30 -20 58 06.4     17.0     SNIIn 25 1
3 SN 2018gwa SN* 07 20 16.734 +41 20 47.94           SNII 3 0
4 SN 2006jd SN* 08 02 07.43 +00 48 31.5   22.5 21.8 20.4 21.3 SNIIn 128 1
5 SN 2005kj SN* 08 40 09.18 -05 36 02.2     16.3     SNIIn 26 1
6 SN 2018kag SN* 08 55 48.48 +03 38 29.5           SNIIn 4 0
7 SN 2005ip SN* 09 32 06.42 +08 26 44.4 18.1 18.7 18.5     SNIIn 230 1
8 SN 2010jl SN* 09 42 53.33 +09 29 41.8           SNIIn 350 1
9 SN 2019ctt SN* 10 00 42.288 +12 02 23.41           SNIIn 3 0
10 SN 2018lnb SN* 10 38 32.75210 +48 16 31.1491           ~ 4 0
11 * eta Car s*b 10 45 03.545808 -59 41 03.95124 6.37 7.03 6.48 6.123 4.41 LBV 2543 0
12 SN 1988Z SN* 10 51 50.10 +16 00 00.5   16.8       SNIIn 385 1
13 SN 1998S SN* 11 46 06.1 +47 28 55     12.2     SNIIn 517 1
14 SN 2012ab SN* 12 22 47.5 +05 36 24           SNII: 28 1
15 SN 2019cac SN* 13 50 43.89666 -02 30 25.0040           SNIIn 4 0
16 SN 2019dde SN* 14 28 12.03866 -01 36 15.0674           SNIIn 3 0
17 SN 2019qt SN* 14 59 10.652 +43 49 11.64           SNIIn 4 0
18 SN 2019cmy SN* 15 08 50.844 +40 42 49.50           ~ 4 0
19 SN 2018bwr SN* 15 28 26.164 +08 48 22.16           SNIIn 6 0
20 PTF 12glz SN* 15 54 53.04 +03 32 07.5           SNIIn 13 0
21 SN 2018fdt SN* 17 04 44.341 +38 14 08.04           SNIIn 4 0
22 SN 2010mc SN* 17 21 30.68 +48 07 47.4           SNIIn 101 1
23 SN 2018lpu SN* 18 55 44.975 +47 26 28.50           ~ 3 0
24 SN 2019dnz SN* 19 48 31.477 +02 54 49.50           ~ 3 0
25 SN 2008fq SN* 20 25 06.19 -24 48 27.6           SNII 47 1
26 SN 2006bo SN* 20 30 41.90 +09 11 40.8     17.6     SNIIn 24 1
27 SN 2005cl SN* 21 02 02.35 -06 17 35.7     18.3     SNIIn 34 1
28 SN 2009ip s*b 22 23 08.26 -28 56 52.4           LBV 406 0

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