2019ApJ...885...43A

Query : 2019ApJ...885...43A

2019ApJ...885...43A - Astrophys. J., 885, 43-43 (2019/November-1)

SN 2017gmr: an energetic Type II-P supernova with asymmetries.

ANDREWS J.E., SAND D.J., VALENTI S., SMITH N., DASTIDAR R., SAHU D.K., MISRA K., SINGH A., HIRAMATSU D., BROWN P.J., HOSSEINZADEH G., WYATT S., VINKO J., ANUPAMA G.C., ARCAVI I., ASHALL C., BENETTI S., BERTON M., BOSTROEM K.A., BULLA M., BURKE J., CHEN S., CHOMIUK L., CIKOTA A., CONGIU E., CSEH B., DAVIS S., ELIAS-ROSA N., FARAN T., FRASER M., GALBANY L., GALL C., GAL-YAM A., GANGOPADHYAY A., GROMADZKI M., HAISLIP J., HOWELL D.A., HSIAO E.Y., INSERRA C., KANKARE E., KUNCARAYAKTI H., KOUPRIANOV V., KUMAR B., LI X., LIN H., MAGUIRE K., MAZZALI P., McCULLY C., MILNE P., MO J., MORRELL N., NICHOLL M., OCHNER P., OLIVARES F., PASTORELLO A., PATAT F., PHILLIPS M., PIGNATA G., PRENTICE S., REGUITTI A., REICHART D.E., RODRIGUEZ O., RUI L., SANWAL P., SARNECZKY K., SHAHBANDEH M., SINGH M., SMARTT S., STRADER J., STRITZINGER M.D., SZAKATS R., TARTAGLIA L., WANG H., WANG L., WANG X., WHEELER J.C., XIANG D., YARON O., YOUNG D.R. and ZHANG J.

Abstract (from CDS):

We present high-cadence UV, optical, and near-infrared data on the luminous Type II-P supernova SN 2017gmr from hours after discovery through the first 180 days. SN 2017gmr does not show signs of narrow, high-ionization emission lines in the early optical spectra, yet the optical light-curve evolution suggests that an extra energy source from circumstellar medium (CSM) interaction must be present for at least 2 days after explosion. Modeling of the early light curve indicates a ∼500 R☉ progenitor radius, consistent with a rather compact red supergiant, and late-time luminosities indicate that up to 0.130 ± 0.026 M☉ of 56Ni are present, if the light curve is solely powered by radioactive decay, although the 56Ni mass may be lower if CSM interaction contributes to the post-plateau luminosity. Prominent multipeaked emission lines of Hα and [O I] emerge after day 154, as a result of either an asymmetric explosion or asymmetries in the CSM. The lack of narrow lines within the first 2 days of explosion in the likely presence of CSM interaction may be an example of close, dense, asymmetric CSM that is quickly enveloped by the spherical supernova ejecta.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): Type II supernovae - Core-collapse supernovae - Massive stars

VizieR on-line data: <Available at CDS (J/ApJ/885/43): table1.dat>

Simbad objects: 36

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Number of rows : 36
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 iPTF 13iqb SN* 00 34 04.84 -09 42 17.9           SNIIn 65 0
2 SN 2014cx SN* 00 59 47.83 -07 34 18.6           SNIIP 39 1
3 SN 1992am SN* 01 25 02.76 -04 39 00.9   18.5 18.5     SNIIP 56 1
4 SN 2003gd SN* 01 36 42.65 +15 44 19.9     13.2     SNIIP 249 2
5 SN 2013ej SN* 01 36 48.16 +15 45 31.0           SNIIP 200 0
6 NGC 988 Sy1 02 35 27.7649212080 -09 21 21.933984312   11.73   11.01 11.6 ~ 97 0
7 SN 2017gmr SN* 02 35 30.15 -09 21 15.0           SNII 36 0
8 SN 2012ec SN* 02 45 59.89 -07 34 25.0         22.32 SNIIP 73 3
9 NGC 1084 GiG 02 45 59.926 -07 34 43.10 11.22 11.59 10.73 10.55 11.1 ~ 368 2
10 SN 1999em SN* 04 41 27.04 -02 51 45.2   13.79 13.7     SNIIP 674 1
11 SN 1987A SN* 05 35 28.020 -69 16 11.07           SNIIpec 4938 2
12 SN 2010jp SN* 06 16 30.63 -21 24 36.3           SNIIn 38 1
13 2MASS J07371703+6535579 HXB 07 37 17.0432126424 +65 35 57.826001220           SNIIP 279 1
14 SN 2006jd SN* 08 02 07.43 +00 48 31.5   22.5 21.8 20.4 21.3 SNIIn 111 1
15 SN 2006jc SN* 09 17 20.78 +41 54 32.7     13.8     SNIbn 342 1
16 SN 2008if SN* 09 20 23.47 -07 52 33.1           SNII 25 1
17 SN 2005ip SN* 09 32 06.42 +08 26 44.4 18.1 18.7 18.5     SNII 191 1
18 SN 2010jl SN* 09 42 53.33 +09 29 41.8           SNIIn 291 1
19 SN 2016bkv SN* 10 18 19.31 +41 25 39.3           SNII 47 0
20 SN 2012A SN* 10 25 07.39 +17 09 14.6           SNIIP 114 0
21 SN 2014G SN* 10 54 34.13 +54 17 56.9           SNIIL 62 1
22 SN 1998S SN* 11 46 06.1 +47 28 55     12.2     SNIIn 462 1
23 SN 2006bp SN* 11 53 55.74 +52 21 09.4 14.5 15.8 14.7     SNIIP 178 1
24 SN 1983K SN* 12 49 12.23 -08 37 41.5   12.6       SNIIP 84 1
25 SN 2016X SN* 12 55 15.50 +00 05 59.7           SNIIP 43 0
26 SN 2011ja SN* 13 05 11.12 -49 31 27.0           SNIIP 44 0
27 SN 1992H SN* 13 56 22.26 +47 14 27.4     15.0     SNII 105 1
28 SN 2013ab SN* 14 32 44.49 +09 53 12.3           SNIIP 59 1
29 SN 2013cu SN* 14 33 58.97 +40 14 20.7           SNII: 85 1
30 SN 2016esw SN* 18 58 04.090 +43 56 22.60           SNII 13 0
31 SN 2017eaw SN* 20 34 44.238 +60 11 36.00           SNIIP 114 0
32 SN 2004et SN* 20 35 25.33 +60 07 17.7   12.88       SNIIP 489 1
33 SN 2013fs SN* 23 19 44.70 +10 11 05.0           SNIIP 111 1
34 SN 2003jd SN* 23 21 03.38 -04 53 45.5   16.34       SNIc-BL 139 1
35 SN 2007od SN* 23 55 48.68 +18 24 54.8       14.4   SNIIP 130 1
36 NAME Local Group GrG ~ ~           ~ 8391 0

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