2017A&A...605A...6N


Query : 2017A&A...605A...6N

2017A&A...605A...6N - Astronomy and Astrophysics, volume 605A, 6-6 (2017/9-1)

The bumpy light curve of Type IIn supernova iPTF13z over 3 years.

NYHOLM A., SOLLERMAN J., TADDIA F., FREMLING C., MORIYA T.J., OFEK E.O., GAL-YAM A., DE CIA A., ROY R., KASLIWAL M.M., CAO Y., NUGENT P.E. and MASCI F.J.

Abstract (from CDS):

A core-collapse (CC) supernova (SN) of TypeIIn is dominated by the interaction of SN ejecta with the circumstellar medium (CSM). Some SNeIIn (e.g. SN 2006jd) have episodes of re-brightening ("bumps") in their light curves. We present iPTF13z, a TypeIIn SN discovered on 2013 February 1 by the intermediate Palomar Transient Factory (iPTF). This SN showed at least five bumps in its declining light curve between 130 and 750 days after discovery. We analyse this peculiar behaviour and try to infer the properties of the CSM, of the SN explosion, and the nature of the progenitor star. We obtained multi-band optical photometry for over 1000 days after discovery with the P48 and P60 telescopes at Palomar Observatory. We obtained low-resolution optical spectra during the same period. We did an archival search for progenitor outbursts. We analyse the photometry and the spectra, and compare iPTF13z to other SNeIIn.In particular we derive absolute magnitudes, colours, a pseudo-bolometric light curve, and the velocities of the different components of the spectral lines. A simple analytical model is used to estimate the properties of the CSM. iPTF13z had a light curve peaking at Mr≤-18.3mag. The five bumps during its decline phase had amplitudes ranging from 0.4 to 0.9 mag and durations between 20 and 120 days. The most prominent bumps appeared in all the different optical bands, when covered. The spectra of this SN showed typical SNIIn characteristics, with emission lines of Hα (with broad component FWHM∼103-104km/s and narrow component FWHM∼102km/s) and HeI, but also with FeII, CaII, NaI D and Hβ P Cygni profiles (with velocities of ∼103km/s). A pre-explosion outburst was identified lasting ≥50-days, with Mr~=-15mag around 210 days before discovery. Large, variable progenitor mass-loss rates (≥0.01M/yr) and CSM densities (≥10–16g/cm3) are derived. The SN was hosted by a metal-poor dwarf galaxy at redshift z=0.0328. We suggest that the light curve bumps of iPTF13z arose from SN ejecta interacting with denser regions in the CSM, possibly produced by the eruptions of a luminous blue variable progenitor star.

Abstract Copyright: © ESO, 2017

Journal keyword(s): supernovae: general - supernovae: individual: iPTF13z - galaxies: individual: SDSS J160200.05+211442.3 - galaxies: individual: SDSS J160200.05+211442.3

VizieR on-line data: <Available at CDS (J/A+A/605/A6): table2.dat table3.dat>

Simbad objects: 63

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Number of rows : 63
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 SN 2005gl SN* 00 49 50.02 +32 16 56.8       17.0   SNIIn 133 2
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 10315 1
3 SN 2010jj SN* 02 06 52.23 +44 34 17.5           SNIIn 7 1
4 SN 1961V SN* 02 43 36.42 +37 20 43.6   12.7 12.5     SNIIpec? 200 2
5 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 6373 1
6 PTF 12ksy SN* 04 11 46.1 -12 28 01           ~ 3 0
7 SN 1995G SN* 04 43 44.2 -05 18 53     15.5     SNIIn 72 1
8 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16155 1
9 SN 2006jd SN* 08 02 07.43 +00 48 31.5   22.5 21.8 20.4 21.3 SNIIn 95 1
10 SN 2005kj SN* 08 40 09.18 -05 36 02.2     16.3     SNIIn 17 1
11 SN 2015bh SN* 09 09 34.96 +33 07 20.4           SNIIn 48 1
12 SN 2005ip SN* 09 32 06.42 +08 26 44.4 18.1 18.7 18.5     SNII 158 1
13 PSN J10081059+5150570 s*b 10 08 10.58 +51 50 57.1           LBV 92 0
14 iPTF 13ajw SN* 10 26 54.55 +19 52 55.2           SNIIn 19 0
15 SN 1988Z SN* 10 51 50.10 +16 00 00.5   16.8       SNIIn 356 1
16 SN 1996L SN* 11 38 37.80 -43 25 13.8   18.5       SNIIn 41 1
17 SN 1998S SN* 11 46 06.1 +47 28 55     12.2     SNIIn 426 1
18 SN 1994W SN* 12 02 10.92 +62 08 32.7     13.3     SNIInP 176 1
19 SN 1979C SN* 12 22 58.58 +15 47 52.7   11.6       SNIIL 562 1
20 PTF 10bjb SN* 12 49 41.920 -10 48 00.57           SNIIn? 4 0
21 SN 2005la SN* 12 52 15.68 +27 31 52.5     17.6     SNIbn/IIbn 59 1
22 iPTF 13agz ev 14 34 32.1 +25 09 44           ~ 3 0
23 SN 1995N SN* 14 49 28.29 -10 10 14.0     17.5     SNIIn 145 1
24 SDSS J160147.79+211241.4 * 16 01 47.7920297040 +21 12 41.463935784           ~ 1 0
25 SDSS J160148.39+211542.7 * 16 01 48.3988830504 +21 15 42.807439620           ~ 1 0
26 SDSS J160148.46+211423.3 PM* 16 01 48.4680962520 +21 14 23.582128056           ~ 1 0
27 SDSS J160152.08+211638.9 * 16 01 52.0834998192 +21 16 38.975098944           ~ 1 0
28 SDSS J160152.66+211713.6 * 16 01 52.6684602408 +21 17 13.655538528           ~ 1 0
29 SDSS J160152.74+211516.1 * 16 01 52.7415542520 +21 15 16.272048852           ~ 1 0
30 SDSS J160153.87+211607.8 * 16 01 53.8775006712 +21 16 07.888245960           ~ 1 0
31 SDSS J160154.84+211600.3 * 16 01 54.8494188552 +21 16 00.361497432           ~ 1 0
32 SDSS J160156.41+211722.8 * 16 01 56.4148923696 +21 17 22.789312584           ~ 1 0
33 SDSS J160157.02+211318.8 * 16 01 57.0300048576 +21 13 18.867923472           ~ 1 0
34 SDSS J160157.84+211719.5 * 16 01 57.8484384216 +21 17 19.596683724           ~ 1 0
35 SDSS J160158.28+211301.7 * 16 01 58.2828610152 +21 13 01.787952828           ~ 1 0
36 SDSS J160200.05+211442.3 ? 16 02 00.054 +21 14 42.36           ~ 1 0
37 SDSSCGB 53789.4 G 16 02 00.055 +21 14 42.40           ~ 2 0
38 iPTF 13z SN* 16 02 00.12 +21 14 41.4           SNIIn 16 0
39 SDSS J160200.58+211153.8 * 16 02 00.5867319336 +21 11 53.822193000           ~ 1 0
40 SDSS J160202.05+211246.5 * 16 02 02.0530001904 +21 12 46.533693960           ~ 1 0
41 SDSS J160202.24+211432.7 * 16 02 02.2452529320 +21 14 32.778403476           ~ 1 0
42 SDSS J160202.57+211311.2 * 16 02 02.5773496464 +21 13 11.241894720           ~ 1 0
43 SDSS J160203.04+211601.2 * 16 02 03.0501439272 +21 16 01.215016500           ~ 1 0
44 SDSS J160203.21+211304.6 * 16 02 03.2051857248 +21 13 04.705563144           ~ 1 0
45 SDSS J160205.22+211547.3 * 16 02 05.2204555872 +21 15 47.392603380           ~ 1 0
46 SDSS J160205.77+211317.8 * 16 02 05.7748462152 +21 13 17.809884516           ~ 1 0
47 SDSS J160206.00+211525.2 * 16 02 06.0041227320 +21 15 25.252963524           ~ 1 0
48 SDSS J160206.20+211229.8 * 16 02 06.2094404472 +21 12 29.895574860           ~ 1 0
49 SDSS J160207.60+211431.3 * 16 02 07.6059760296 +21 14 31.450495740           ~ 1 0
50 SDSS J160208.31+211413.2 * 16 02 08.3145292560 +21 14 13.207733484           ~ 1 0
51 SDSS J160210.67+211502.8 * 16 02 10.6763142024 +21 15 02.919688380           ~ 1 0
52 SDSS J160211.26+211531.0 * 16 02 11.2635161208 +21 15 31.075496244           ~ 1 0
53 SDSS J160211.66+211417.0 * 16 02 11.6694653064 +21 14 17.069255124           ~ 1 0
54 SDSS J160212.32+211325.9 * 16 02 12.3226959048 +21 13 26.003676144           ~ 1 0
55 SDSS J160212.52+211625.2 PM* 16 02 12.5285469528 +21 16 25.503169152           ~ 1 0
56 SN 2008iy SN* 16 08 37.23 +04 16 26.7           SNIIn 46 1
57 PTF 10tyd SN* 17 09 19.41 +27 49 08.6           ~ 4 0
58 SN 2010mc SN* 17 21 30.68 +48 07 47.4           SNIIn 71 1
59 SN 2005cl SN* 21 02 02.35 -06 17 35.7     18.3     SNIIn 28 1
60 SN 2006oz SN* 22 08 53.56 +00 53 50.4           SLSNIc 76 1
61 SN 2009ip s*b 22 23 08.26 -28 56 52.4           LBV 310 0
62 SN 2014C SN* 22 37 05.60 +34 24 31.9           SNIb 89 1
63 SN 2001ig SN* 22 57 30.69 -41 02 25.9     14.5     SNIIb 158 1

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2022.08.10-19:57:00

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