SwePub
Sök i LIBRIS databas

  Extended search

onr:"swepub:oai:DiVA.org:su-203958"
 

Search: onr:"swepub:oai:DiVA.org:su-203958" > Constraining Type I...

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist
LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003542naa a2200517 4500
001oai:DiVA.org:su-203958
003SwePub
008220420s2022 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-2039582 URI
0247 a https://doi.org/10.1093/mnras/stac5582 DOI
040 a (SwePub)su
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Deckers, M.4 aut
2451 0a Constraining Type Ia supernova explosions and early flux excesses with the Zwicky Transient Factory
264 c 2022-03-03
264 1b Oxford University Press (OUP),c 2022
338 a print2 rdacarrier
520 a In the new era of time-domain surveys, Type Ia supernovae are being caught sooner after explosion, which has exposed significant variation in their early light curves. Two driving factors for early-time evolution are the distribution of 56Ni in the ejecta and the presence of flux excesses of various causes. We perform an analysis of the largest young SN Ia sample to date. We compare 115 SN Ia light curves from the Zwicky Transient Facility to the TURTLS model grid containing light curves of Chandrasekhar mass explosions with a range of 56Ni masses, 56Ni distributions, and explosion energies. We find that the majority of our observed light curves are well reproduced by Chandrasekhar mass explosion models with a preference for highly extended 56Ni distributions. We identify six SNe Ia with an early-time flux excess in our gr-band data (four ‘blue’ and two ‘red’ flux excesses). We find an intrinsic rate of 18 ± 11 per cent of early flux excesses in SNe Ia at z < 0.07, based on three detected flux excesses out of 30 (10 per cent) observed SNe Ia with a simulated efficiency of 57 per cent. This is comparable to rates of flux excesses in the literature but also accounts for detection efficiencies. Two of these events are mostly consistent with circumstellar material interaction, while the other four have longer lifetimes in agreement with companion interaction and 56Ni-clump models. We find a higher frequency of flux excesses in 91T/99aa-like events (44 ± 13 per cent).
650 7a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng
653 a surveys
653 a supernovae: general
7001 a Maguire, K.4 aut
7001 a Magee, M. R.4 aut
7001 a Dimitriadis, G.4 aut
7001 a Smith, M.4 aut
7001 a Sainz de Murieta, A.4 aut
7001 a Miller, A. A.4 aut
7001 a Goobar, Arielu Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)ariel
7001 a Nordin, J.4 aut
7001 a Rigault, M.4 aut
7001 a Bellm, E. C.4 aut
7001 a Coughlin, M.4 aut
7001 a Laher, R. R.4 aut
7001 a Shupe, D. L.4 aut
7001 a Graham, M.4 aut
7001 a Kasliwal, M.4 aut
7001 a Walters, R.4 aut
7102 a Stockholms universitetb Fysikum4 org
7730 t Monthly notices of the Royal Astronomical Societyd : Oxford University Press (OUP)g 512:1, s. 1317-1340q 512:1<1317-1340x 0035-8711x 1365-2966
8564 u https://arxiv.org/abs/2202.12914y arXiv:2202.12914
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-203958
8564 8u https://doi.org/10.1093/mnras/stac558

Find in a library

To the university's database

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view