2017A&A...603A.136P


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET10:51:00

2017A&A...603A.136P - Astronomy and Astrophysics, volume 603A, 136-136 (2017/7-1)

Testing for redshift evolution of Type Ia supernovae using the strongly lensed PS1-10afx at z = 1.4.

PETRUSHEVSKA T., AMANULLAH R., BULLA M., KROMER M., FERRETTI R., GOOBAR A. and PAPADOGIANNAKIS S.

Abstract (from CDS):

Context. The light from distant supernovae (SNe ) can be magnified through gravitational lensing when a foreground galaxy is located along the line of sight. This line-up allows for detailed studies of SNe at high redshift that otherwise would not be possible. Spectroscopic observations of lensed high-redshift Type Ia supernovae (SNe Ia) are of particular interest since they can be used to test for evolution of their intrinsic properties. The use of SNe Ia for probing the cosmic expansion history has proven to be an extremely powerful method for measuring cosmological parameters. However, if systematic redshift-dependent properties are found, their usefulness for future surveys could be challenged.
Aims. We investigate whether the spectroscopic properties of the strongly lensed and very distant SN Ia PS1-10afx at z=1.4, deviates from the well-studied populations of normal SNe Ia at nearby or intermediate distance.
Methods. We created median spectra from nearby and intermediate-redshift spectroscopically normal SNe Ia from the literature at -5 and +1 days from light-curve maximum. We then compared these median spectra to those of PS1-10afx.
Results. We do not find signs of spectral evolution in PS1-10afx. The observed deviation between PS1-10afx and the median templates are within what is found for SNe at low and intermediate redshift. There is a noticeable broad feature centred at λ∼3500Å, which is present only to a lesser extent in individual low- and intermediate-redshift SN Ia spectra. From a comparison with a recently developed explosion model, we find this feature to be dominated by iron peak elements, in particular, singly ionized cobalt and chromium.

Abstract Copyright: © ESO, 2017

Journal keyword(s): supernovae: individual: PS1-10afx - gravitational lensing: strong - supernovae: general - supernovae: general

Simbad objects: 15

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Number of rows : 15

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HFF 14Tom SN* 00 14 17.87 -30 23 59.7           SNIa 14 0
2 SN 2009ig SN* 02 38 11.62 -01 18 45.3           SNIa 120 1
3 SN 1992A SN* 03 36 27.41 -34 57 31.4   12.56 12.50     SNIa 383 1
4 SN 2005df SN* 04 17 37.85 -62 46 09.5     13.8     SNIa 57 1
5 SN 2014J SN* 09 55 42.12 +69 40 25.9           SNIa 321 1
6 SN 2001ba SN* 11 38 01.76 -32 19 51.0   16.44       SNIa 59 1
7 SN 2011by SN* 11 55 45.56 +55 19 33.8   12.97 12.95     SNIa 67 1
8 SN 2012cg SN* 12 27 12.83 +09 25 13.2           SNIa 135 1
9 SN 1981B SN* 12 34 29.57 +02 11 59.3   11.74       SNIa 386 1
10 ASASSN -14lp SN* 12 45 09.10 -00 27 32.4           SNIa 46 0
11 SN 2011fe SN* 14 03 05.711 +54 16 25.22   10.12 10.06     SNIa 524 1
12 SN 2005cf SN* 15 21 33.12 -07 26 57.1   13.54       SNIa 241 1
13 SN 2016geu SN* 21 04 15.86 -06 20 24.5           SNIa 30 0
14 PS1-10afx SN* 22 11 24.162 +00 09 43.49           SNIa 34 0
15 SN 2013dy SN* 22 18 17.60 +40 34 09.6           SNIa 77 0

    Equat.    Gal    SGal    Ecl

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2020.11.25-10:51:00

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