2018ApJ...863...20J


Query : 2018ApJ...863...20J

2018ApJ...863...20J - Astrophys. J., 863, 20-20 (2018/August-2)

SPIRITS 16tn in NGC 3556: a heavily obscured and low-luminosity supernova at 8.8 Mpc.

JENCSON J.E., KASLIWAL M.M., ADAMS S.M., BOND H.E., LAU R.M., JOHANSSON J., HORESH A., MOOLEY K.P., FENDER R., DE K., O'SULLIVAN D., MASCI F.J., CODY A.M., BLAGORODNOVA N., FOX O.D., GEHRZ R.D., MILNE P.A., PERLEY D.A., SMITH N. and VAN DYK S.D.

Abstract (from CDS):

We present the discovery by the SPitzer InfraRed Intensive Transients Survey (SPIRITS) of a likely supernova (SN) in NGC 3556 (M108) at only 8.8 Mpc that was not detected by optical searches. A luminous infrared (IR) transient at M[4.5] = -16.7 mag (Vega), SPIRITS 16tn is coincident with a dust lane in the inclined, star-forming disk of the host. Using observations in the IR, optical, and radio, we attempt to determine the nature of this event. We estimate AV ≃ 8-9 mag of extinction, placing it among the three most highly obscured IR-discovered SNe. The [4.5] light curve declined at a rate of 0.013 mag day–1, and the [3.6]-[4.5] color increased from 0.7 to >=1.0 mag by 184.7 days post discovery. Optical/IR spectroscopy shows a red continuum but no clearly discernible features, preventing a definitive spectroscopic classification. Radio observations constrain the radio luminosity of SPIRITS 16tn to Lν <= 1024 erg s–1 Hz–1 between 3 and 15 GHz, excluding many varieties of core-collapse SNe. An SN Ia is ruled out by the observed IR color and lack of spectroscopic features from Fe-peak elements. SPIRITS 16tn was fainter at [4.5] than typical stripped-envelope SNe by ≃1 mag. Comparison of the spectral energy distribution to SNe II suggests that SPIRITS 16tn was both highly obscured and intrinsically dim, possibly akin to the low-luminosity SN 2005cs. We infer the presence of an IR dust echo powered by an initial peak luminosity of the transient of 5 x 1040 erg s–1 <= Lpeak <= 4 x 1043 erg s–1, consistent with the observed range for SNe II. This discovery illustrates the power of IR surveys to overcome the compounding effects of visible extinction and optically subluminous events in completing the inventory of nearby SNe.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): dust, extinction - galaxies: individual: NGC 3556 - supernovae: general - supernovae: individual: SPIRITS 16tn - surveys

Simbad objects: 60

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Number of rows : 60
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 NAME NGC 300 OT2008-1 ev 00 54 34.16 -37 38 28.6           ~ 123 1
2 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1498 2
3 SN 2013ej SN* 01 36 48.16 +15 45 31.0           SNIIP 198 0
4 BD+12 237 * 01 49 09.4876255128 +13 33 11.799646344   10.38 10.19     sdA0IVHe1 84 0
5 SN 2005ad SN* 02 28 29.45 -01 08 20.0           SNIIP 28 1
6 SN 2009ig SN* 02 38 11.62 -01 18 45.3           SNIa-norm 149 1
7 SN 2007gr SN* 02 43 27.98 +37 20 44.7       12.77   SNIc 235 1
8 SN 2005gj SN* 03 01 11.96 -00 33 13.9   18.6       SNIapec 196 1
9 NGC 1532 GiP 04 12 04.3612491792 -32 52 26.960041056   10.65   9.34 10.4 ~ 149 0
10 SN 2016ija SN* 04 12 07.640 -32 51 10.57           SNII 19 0
11 SN 2005df SN* 04 17 37.85 -62 46 09.5     13.8     SNIa 76 1
12 SN 1987A SN* 05 35 28.020 -69 16 11.07           SNIIpec 4931 2
13 SPIRITS14buu ev 06 16 27.20 -21 22 29.2           ~ 7 0
14 IC 2163 AG? 06 16 27.9671433048 -21 22 33.133211832   12.55   11.28   ~ 164 2
15 SPIRITS15c ev 06 16 28.49 -21 22 42.2           ~ 8 0
16 V* V838 Mon No* 07 04 04.8221494992 -03 50 50.648894412       15.181 14.51 M10+B3V 426 0
17 2MASS J07371703+6535579 HXB 07 37 17.0432126424 +65 35 57.826001220           SNIIP 279 1
18 SN 2006jc SN* 09 17 20.78 +41 54 32.7     13.8     SNIbn 342 1
19 SN 2010jl SN* 09 42 53.33 +09 29 41.8           SNIIn 288 1
20 SN 2014J SN* 09 55 42.12 +69 40 25.9           SNIa-norm 407 1
21 Feige 34 HS* 10 39 36.7358839104 +43 06 09.212615280 9.613 10.91 11.14 11.319 11.464 sdOp 679 0
22 HD 95126 * 10 59 40.2075414048 +45 47 18.888822276   8.88 8.89     A0V 31 0
23 SPIRITS16tn SN? 11 11 20.40 +55 40 17.3           ~ 9 0
24 SN 1969B SN* 11 11 21 +55 40.2   14.3       SNIIP 31 1
25 M 108 SBG 11 11 30.967 +55 40 26.84   10.70       ~ 471 1
26 SN 2013am SN* 11 18 56.95 +13 03 49.4           SNII 40 1
27 HD 99966 * 11 30 29.8370585520 +48 56 08.557939932   7.33 7.39     A0V 45 0
28 SN 2013dk SN* 12 01 52.72 -18 52 18.3           SNIc 20 1
29 SN 2007sr SN* 12 01 52.80 -18 58 21.7     12.79     SNIa 87 1
30 SN 2014bi SN* 12 06 02.99 +47 29 33.5           SNIIP 13 1
31 SN 2014L SN* 12 18 48.68 +14 24 43.5           SNIc 23 1
32 SN 2006ov SN* 12 21 55.30 +04 29 16.7     14.9     SNIIP 74 1
33 SN 2014dt SN* 12 21 57.6 +04 28 18           SNIax 55 1
34 SN 2006X SN* 12 22 53.93 +15 48 32.0     15.3     SNIa 324 1
35 SN 2013df SN* 12 26 29.33 +31 13 38.3           SNIIb 113 1
36 SN 2012cg SN* 12 27 12.83 +09 25 13.2           SNIa-norm 191 1
37 NGC 4490 GiP 12 30 34.5 +41 38 26 10.03 10.22 9.79     ~ 574 3
38 NAME NGC 4490-OT2011 ev 12 30 41.85 +41 37 49.8           ~ 40 0
39 SN 2006my SN* 12 43 40.74 +16 23 14.1     15.3     SNIIP 57 1
40 SN 1999br SN* 13 00 41.80 +02 29 45.8     17.5     SNIIPp 164 1
41 SN 2005af SN* 13 04 44.06 -49 33 59.8     12.8     SNIIP 63 1
42 SN 2011ja SN* 13 05 11.12 -49 31 27.0           SNIIP 44 0
43 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4325 4
44 SN 2005cs SN* 13 29 53.37 +47 10 28.2   14.5       SNIIP 407 1
45 SN 2011dh SN* 13 30 05.10555 +47 10 10.9227           SNIIb 387 1
46 NAME M101 OT2015-1 SN? 14 02 16.78 +54 26 20.5   19.19 17.57 16.92 16.26 ~ 46 0
47 SN 2011fe SN* 14 03 05.711 +54 16 25.22   10.12 10.06     SNIa-norm 668 1
48 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 2909 2
49 SN 2007af SN* 14 22 21.03 -00 23 37.6     15.4     SNIa 163 1
50 SN 2004A SN* 16 43 01.90 +36 50 12.5     15.7     SNIIP 75 1
51 V* V1309 Sco No* 17 57 32.9368332984 -30 43 09.965039880   16.9   14.8   ~ 258 0
52 SN 1998bw SN* 19 35 03.17 -52 50 46.1   14.09       SNIc 1820 2
53 SN 2008S ev 20 34 45.33 +60 05 58.4   19.89 18.79 17.93   SNIIn? 239 1
54 SN 2004et SN* 20 35 25.33 +60 07 17.7   12.88       SNIIP 487 1
55 LSQ 12dwl SN* 22 12 41.53 +00 30 43.1           SNIc 50 1
56 SN 2009ip s*b 22 23 08.26 -28 56 52.4           LBV 346 0
57 SN 2013bu SN* 22 37 02.17 +34 24 05.2           SNIIP 18 1
58 SN 2014C SN* 22 37 05.60 +34 24 31.9           SNIb 122 1
59 SN 2007oc SN* 22 56 41.77 -36 46 22.3     13.6     SNIIP 22 1
60 SN 2007le SN* 23 38 48.45 -06 31 21.7     15.2     SNIa 124 1

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