2014ApJ...796...87I


Query : 2014ApJ...796...87I

2014ApJ...796...87I - Astrophys. J., 796, 87 (2014/December-1)

Superluminous supernovae as standardizable candles and high-redshift distance probes.

INSERRA C. and SMARTT S.J.

Abstract (from CDS):

We investigate the use of type Ic superluminous supernovae (SLSN Ic) as standardizable candles and distance indicators. Their appeal as cosmological probes stems from their remarkable peak luminosities, hot blackbody temperatures, and bright rest-frame ultraviolet emission. We present a sample of 16 published SLSN, from redshifts 0.1 to 1.2, and calculate accurate K corrections to determine uniform magnitudes in 2 synthetic rest-frame filter bandpasses with central wavelengths at 400 nm and 520 nm. At 400 nm, we find an encouragingly low scatter in their uncorrected, raw mean magnitudes with M(400) = -21.86±0.35 mag for the full sample of 16 objects. We investigate the correlation between their decline rates and peak magnitude and find that the brighter events appear to decline more slowly. In a manner similar to the Phillips relation for type Ia SNe (SNe Ia), we define a ΔM20 decline relation. This correlates peak magnitude and decline over 20 days and can reduce the scatter in standardized peak magnitudes to ±0.22 mag. We further show that M(400) appears to have a strong color dependence. Redder objects are fainter and also become redder faster. Using this peak magnitudecolor evolution relation, a surprisingly low scatter of between ±0.08 mag and ±0.13 mag can be found in peak magnitudes, depending on sample selection. However, we caution that only 8 to 10 objects currently have enough data to test this peak magnitudecolor evolution relation. We conclude that SLSN Ic are promising distance indicators in the high-redshift universe in regimes beyond those possible with SNe Ia. Although the empirical relationships are encouraging, the unknown progenitor systems, how they may evolve with redshift, and the uncertain explosion physics are of some concern. The two major measurement uncertainties are the limited numbers of low-redshift, well-studied objects available to test these relationships and internal dust extinction in the host galaxies.

Abstract Copyright:

Journal keyword(s): distance scale - supernovae: general

Errata: erratum vol. 807, art. 112 (2015)

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 - 2022
#notes
1 CRTS CSS121015 J004244+132827 SN* 00 42 44.380 +13 28 26.20           SNII/IIB 29 0
2 SN 2011kg SN* 01 39 45.51 +29 55 27.0           SLSNIc 62 1
3 LSQ 12dlf SN* 01 50 29.80 -21 48 45.4           SNIc 45 0
4 SN 2007gr SN* 02 43 27.98 +37 20 44.7       12.77   SNIc 211 1
5 SN 2007Y SN* 03 02 35.92 -22 53 50.1     17.5     SNIb 102 1
6 PS1-10bzj SN* 03 31 39.826 -27 47 42.17           SNIc 49 0
7 PS1-11bam SN* 08 41 14.192 +44 01 56.95           SLSNIc 25 0
8 SN 2012il SN* 09 46 12.91 +19 50 28.7           SLSNIc 60 1
9 PS1-11ap SN* 10 48 27.73 +57 09 09.2           SLSNIc 50 0
10 SN 2010gx SN* 11 25 46.71 -08 49 41.4           SNIc 147 1
11 PS1-10pm SN* 12 12 42.200 +46 59 29.48           SNIc 21 0
12 SN 2008ax SN* 12 30 40.80 +41 38 16.1   23.6 23.5 14.1 22.6 SNIIb 235 1
13 SN 2005ap SN* 13 01 14.84 +27 43 31.4       18.20   SLSNIc 131 1
14 SN 2013dg SN* 13 18 41.35 -07 04 43.0           SLSNIc 36 1
15 SN 2007bi SN* 13 19 20.19 +08 55 44.3       18.3   SNIcpec 200 1
16 SN 2011ke SN* 13 50 57.77 +26 16 42.8     18.6     SLSNIc 79 1
17 PTF 12dam SN* 14 24 46.20 +46 13 48.3           SLSNIc 136 0
18 [DAB2006b] J143227.42+333225.1 SN* 14 32 27.395 +33 32 24.83           SNIc 105 0
19 SN 2011kf SN* 14 36 57.53 +16 30 56.6           SLSNIc 38 1
20 SN 2009jh SN* 14 49 10.09 +29 25 10.4           SNII: 49 1
21 PTF 09cnd SN* 16 12 08.94 +51 29 16.1           SLSNIc 105 0
22 PTF 09atu SN* 16 30 24.55 +23 38 25.0           SNIc? 53 0
23 SN 2010md SN* 16 37 47.00 +06 12 32.3           SNIc 79 1
24 SN 2006oz SN* 22 08 53.56 +00 53 50.4           SLSNIc 76 1
25 PS1-10afx SN* 22 11 24.162 +00 09 43.49           SNIa 36 0
26 PS1-10ky SN* 22 13 37.851 +01 14 23.57           SNIc 43 0
27 PS1-10awh SN* 22 14 29.831 -00 04 03.62           SNIc 42 0
28 CRTS SSS120810 J231802-560926 SN* 23 18 01.80 -56 09 25.6           SNI 29 0

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2022.08.10-07:16:54

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