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A Linear Relation between the Color Stretch s <SUB> BV </SUB> and the Rising Color Slope {s}_{0}({*) }(B-V) of Type Ia Supernovae

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cris.lastimport.scopus2024-02-12T20:45:40Z
dc.abstract.enUsing data from the Complete Nearby (redshift z <SUB>host</SUB> < 0.02) sample of Type Ia Supernovae (CNIa0.02), we find a linear relation between two parameters derived from the B - V color curves of Type Ia supernovae: the color stretch s <SUB> BV </SUB> and the rising color slope ${s}_{0}^{* }(B-V)$ after the peak, and this relation applies to the full range of s <SUB> BV </SUB>. The s <SUB> BV </SUB> parameter is known to be tightly correlated with the peak luminosity, especially for fast decliners (dim Type Ia supernovae), and the luminosity correlation with s <SUB> BV </SUB> is markedly better than with the classic light-curve width parameters such as Δm <SUB>15</SUB>(B). Thus, our new linear relation can be used to infer peak luminosity from ${s}_{0}^{* }$ . Unlike s <SUB> BV </SUB> (or Δm <SUB>15</SUB>(B)), the measurement of ${s}_{0}^{* }(B-V)$ does not rely on a well-determined time of light-curve peak or color maximum, making it less demanding on the light-curve coverage than past approaches.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorChen, Ping
dc.contributor.authorDong, Subo
dc.contributor.authorAshall, Chris
dc.contributor.authorBenetti, S.
dc.contributor.authorBersier, D.
dc.contributor.authorBose, S.
dc.contributor.authorBrimacombe, Joseph
dc.contributor.authorBrink, Thomas G.
dc.contributor.authorBuckley, David A. H.
dc.contributor.authorCappellaro, Enrico
dc.contributor.authorChristie, Grant W.
dc.contributor.authorElias-Rosa, N.
dc.contributor.authorFilippenko, Alexei V.
dc.contributor.authorGromadzki, Mariusz
dc.contributor.authorHoloien, Thomas W. -S.
dc.contributor.authorHu, Shaoming
dc.contributor.authorKochanek, C. S.
dc.contributor.authorKoff, Robert
dc.contributor.authorKollmeier, Juna A.
dc.contributor.authorLundqvist, P.
dc.contributor.authorMattila, S.
dc.contributor.authorMilne, Peter A.
dc.contributor.authorMuñoz, J. A.
dc.contributor.authorMutel, Robert
dc.contributor.authorNatusch, Tim
dc.contributor.authorNicolas, Joel
dc.contributor.authorPastorello, A.
dc.contributor.authorPrentice, Simon
dc.contributor.authorPrieto, J. L.
dc.contributor.authorRoth, Tyler
dc.contributor.authorShappee, B. J.
dc.contributor.authorStone, Geoffrey
dc.contributor.authorStanek, K. Z.
dc.contributor.authorStritzinger, M. D.
dc.contributor.authorThompson, Todd A.
dc.contributor.authorTomasella, Lina
dc.contributor.authorVillanueva, Steven
dc.date.accessioned2024-01-24T17:48:55Z
dc.date.available2024-01-24T17:48:55Z
dc.date.copyright2023-04-05
dc.date.issued2023
dc.description.accesstimeAT_PUBLICATION
dc.description.financePublikacja bezkosztowa
dc.description.number2
dc.description.versionFINAL_PUBLISHED
dc.description.volume946
dc.identifier.doi10.3847/1538-4357/ACC404
dc.identifier.issn0004-637X
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/101616
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2023ApJ...946..101C
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofAstrophysical Journal
dc.relation.pages101
dc.rightsCC-BY
dc.sciencecloudnosend
dc.titleA Linear Relation between the Color Stretch s <SUB> BV </SUB> and the Rising Color Slope {s}_{0}({*) }(B-V) of Type Ia Supernovae
dc.typeJournalArticle
dspace.entity.typePublication