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Strongly Lensed Supernova Refsdal: Refining Time Delays Based on the Supernova Explosion Models

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dc.contributor.authorBaklanov, P.
dc.contributor.authorLyskova, N.
dc.contributor.authorBlinnikov, S.
dc.contributor.authorNomoto, K.
dc.contributor.authorБакланов, Петр Валерьевич
dc.date.accessioned2024-11-29T11:38:46Z
dc.date.available2024-11-29T11:38:46Z
dc.date.issued2021
dc.description.abstractWe explore the properties of supernova (SN) "Refsdal"-the first discovered gravitationally lensed SN with multiple images. A large magnification provided by the galactic-scale lens, augmented by the cluster lens, gave us a unique opportunity to perform a detailed modeling of a distant SN at z similar or equal to 1.5. We present results of radiation hydrodynamics modeling of SN Refsdal. According to our calculations, the SN Refsdal progenitor is likely to be a more massive and energetic version of SN 1987A, i.e., a blue supergiant star with the following parameters: the progenitor radius R-0 = (50 +/- 1)R-circle dot, the total mass M-tot = (25 +/- 2)M-circle dot, the radioactive Ni-56 mass M-56Ni = (0.26 +/- 0.05) M-circle dot, and the total energy release E-burst = (4.7 +/- 0.8) x 10(51) erg. Reconstruction of SN light curves allowed us to obtain time delays and magnifications for the images S2-S4 relative to S1 with higher accuracy than previous template-based estimates of Rodney et al. (2016). The measured time delays are Delta t(S2-S1) = 9.5(-2.7)(+2.6) days, Delta t(S3-S1) = 4.2(-2.3)(+2.3) days, Delta t(S4-S1) = 30-(-7.8)(8.2) days. The obtained magnification ratios are mu(S2/S1) = 1.14 +/- 0.02, mu(S3/S1) = 1.01 +/- 0.02, and mu(S4/S1) = 0.35 +/- 0.02. We estimate the Hubble constant H-0 = 68.6(-9.7+)(13.6) km s(-1) Mpc(-1) via rescaling the time delays predicted by different lens models to match the values obtained in this work. With more photometric data on the fifth image SX, we will be able to further refine the time delay and magnification estimates for SX and obtain competitive constraints on H-0.
dc.identifier.citationStrongly Lensed Supernova Refsdal: Refining Time Delays Based on the Supernova Explosion Models / Baklanov, P [et al.] // Astrophysical Journal. - 2021. - 907. - № 1. - 10.3847/1538-4357/abcd98
dc.identifier.doi10.3847/1538-4357/abcd98
dc.identifier.urihttps://www.doi.org/10.3847/1538-4357/abcd98
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85100858981&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000611897500001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/23663
dc.relation.ispartofAstrophysical Journal
dc.titleStrongly Lensed Supernova Refsdal: Refining Time Delays Based on the Supernova Explosion Models
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue1
oaire.citation.volume907
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