2012MNRAS.422.1122I

Query : 2012MNRAS.422.1122I

2012MNRAS.422.1122I - Mon. Not. R. Astron. Soc., 422, 1122-1139 (2012/May-2)

The bright type IIP SN 2009bw, showing signs of interaction.

INSERRA C., TURATTO M., PASTORELLO A., PUMO M.L., BARON E., BENETTI S., CAPPELLARO E., TAUBENBERGER S., BUFANO F., ELIAS-ROSA N., ZAMPIERI L., HARUTYUNYAN A., MOSKVITIN A.S., NISSINEN M., STANISHEV V., TSVETKOV D.Y., HENTUNEN V.P., KOMAROVA V.N., PAVLYUK N.N., SOKOLOV V.V. and SOKOLOVA T.N.

Abstract (from CDS):

We present photometry and spectroscopy of the Type IIP supernova (SN IIP) 2009bw in UGC 2890 from a few days after the outburst to 241 d. The light curve of SN 2009bw during the photospheric phase is similar to that of normal SNe IIP but with a brighter peak and plateau ({img} mag, {img} mag). The luminosity drop from the photospheric to the nebular phase is one of the fastest ever observed, ∼ 2.2 mag in about 13 d. The radioactive tail of the bolometric light curve indicates that the amount of ejected 56Ni is ≈ 0.022 M☉. The photospheric spectra reveal high-velocity lines of Hα and Hβ until about 105 d after the shock breakout, suggesting a possible early interaction between the SN ejecta and pre-existent circumstellar material, and the presence of CNO elements. By modelling the bolometric light curve, ejecta expansion velocity and photospheric temperature, we estimate a total ejected mass of ∼ 8-12 M☉, a kinetic energy of ∼ 0.3 foe and an initial radius of ∼ 3.6-7 {x} 1013 cm.

Abstract Copyright: 2012 The Authors Monthly Notices of the Royal Astronomical Society2012 RAS

Journal keyword(s): supernovae: general - supernovae: individual: SN 2009bw - galaxies: individual: UGC 2890

CDS comments: T.1 + fig.1, stars 1-18 are 2MASS, except numbers 11, 13, 14, and 15 which have the ID USNO-B1.0

Simbad objects: 42

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Number of rows : 42
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 SN 1990E SN* 02 39 29.1 -08 08 14     15.2     SNIIP 94 1
2 SN 1995V SN* 02 46 26.77 -00 29 55.6     15     SNII 50 1
3 2MASS J03554476+7253270 * 03 55 44.7689400816 +72 53 27.119445036           ~ 1 0
4 USNO-B1.0 1629-00050962 * 03 55 51.4979378880 +72 56 00.041046504   18.6   18.1   ~ 1 0
5 2MASS J03555401+7253566 * 03 55 53.9946301800 +72 53 56.712848316           ~ 1 0
6 2MASS J03560265+7256209 * 03 56 02.6558288712 +72 56 20.899718232 16.60 15.64 14.47 13.83 13.23 ~ 1 0
7 UGC 2890 AG? 03 56 04.12 +72 55 16.9   14.7       ~ 38 0
8 SN 2009bw SN* 03 56 06.92 +72 55 40.9           SNII 64 1
9 USNO-B1.0 1629-00051109 * 03 56 14.4479358216 +72 55 18.650407944   18.3   17.6   ~ 1 0
10 2MASS J03561532+7256083 * 03 56 15.3101539824 +72 56 08.460572712           ~ 1 0
11 2MASS J03561708+7257074 * 03 56 17.0847916248 +72 57 07.373462256 14.48 14.41 13.73 13.36 12.97 ~ 1 0
12 2MASS J03562502+7256173 NIR 03 56 25.0138458816 +72 56 17.319547176           ~ 1 0
13 USNO-B1.0 1629-00051136 * 03 56 25.5156418008 +72 54 51.261128136   19.7   19.0   ~ 1 0
14 USNO-B1.0 1629-00051140 * 03 56 26.5954703016 +72 55 05.308228956   18.2   17.6   ~ 1 0
15 2MASS J03562879+7257134 * 03 56 28.8254808744 +72 57 12.629831328           ~ 1 0
16 2MASS J03563400+7254349 * 03 56 34.0076502384 +72 54 35.000021448           ~ 1 0
17 2MASS J03563431+7257414 * 03 56 34.3061735976 +72 57 41.471757612           ~ 1 0
18 2MASS J03563668+7255136 * 03 56 36.7056737952 +72 55 13.660287348           ~ 1 0
19 2MASS J03563794+7257322 * 03 56 37.7679975696 +72 57 32.524734744           ~ 1 0
20 2MASS J03564111+7255127 * 03 56 41.1159244536 +72 55 12.716761692           ~ 1 0
21 2MASS J03564303+7255408 * 03 56 43.0173643296 +72 55 40.841308848           ~ 1 0
22 2MASS J03564587+7256532 * 03 56 45.8949989880 +72 56 53.107321920           ~ 1 0
23 SN 1986L SN* 04 17 29.4 -62 47 04     13.3     SNIIP 54 1
24 SN 1999em SN* 04 41 27.04 -02 51 45.2   13.79 13.7     SNIIP 674 1
25 NGC 1637 Sy2 04 41 28.1926876152 -02 51 28.667815488   11.4   11.0 11.3 ~ 418 0
26 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17437 0
27 SN 1987A SN* 05 35 28.020 -69 16 11.07           SNIIpec 4939 2
28 2MASS J07371703+6535579 HXB 07 37 17.0432126424 +65 35 57.826001220           SNIIP 280 1
29 SN 1998S SN* 11 46 06.1 +47 28 55     12.2     SNIIn 462 1
30 NGC 3877 GiG 11 46 07.782 +47 29 40.20   11.8       ~ 324 0
31 NGC 3953 GiG 11 53 49.0086582552 +52 19 36.475395312   11.08   9.71   ~ 359 0
32 SN 2006bp SN* 11 53 55.74 +52 21 09.4 14.5 15.8 14.7     SNIIP 178 1
33 SN 1994W SN* 12 02 10.92 +62 08 32.7     13.3     SNIInP 183 1
34 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4330 4
35 SN 2005cs SN* 13 29 53.37 +47 10 28.2   14.5       SNIIP 408 1
36 NGC 5377 AGN 13 56 16.6722507720 +47 14 08.568249072   12.39 11.46 10.87 10.25 ~ 230 1
37 SN 1992H SN* 13 56 22.26 +47 14 27.4     15.0     SNII 105 1
38 SN 2009kf SN* 16 12 54.00 +55 38 13.8           SNIIP 47 1
39 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2529 2
40 SN 2004et SN* 20 35 25.33 +60 07 17.7   12.88       SNIIP 489 1
41 UGC 12846 AG? 23 55 46.025 +18 25 33.60   17       ~ 61 0
42 SN 2007od SN* 23 55 48.68 +18 24 54.8       14.4   SNIIP 130 1

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