A Linear Relation between the Color Stretch sBV and the Rising Color Slope s0*(B−V) of Type Ia Supernovae

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aut.relation.endpage101
aut.relation.issue2
aut.relation.journalThe Astrophysical Journal
aut.relation.startpage101
aut.relation.volume946
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 AH
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, CS
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, JA
dc.contributor.authorMutel, Robert
dc.contributor.authorNatusch, Tim
dc.contributor.authorNicolas, Joel
dc.contributor.authorPastorello, A
dc.contributor.authorPrentice, Simon
dc.contributor.authorPrieto, JL
dc.contributor.authorRoth, Tyler
dc.contributor.authorShappee, BJ
dc.contributor.authorStone, Geoffrey
dc.contributor.authorStanek, KZ
dc.contributor.authorStritzinger, MD
dc.contributor.authorThompson, Todd A
dc.contributor.authorTomasella, Lina
dc.contributor.authorVillanueva, Steven
dc.date.accessioned2023-08-15T22:33:59Z
dc.date.available2023-08-15T22:33:59Z
dc.date.issued2023-04-05
dc.description.abstractUsing data from the Complete Nearby (redshift zhost < 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 sBV and the rising color slope ${s}_{0}^{* }(B-V)$ after the peak, and this relation applies to the full range of sBV. The sBV parameter is known to be tightly correlated with the peak luminosity, especially for fast decliners (dim Type Ia supernovae), and the luminosity correlation with sBV is markedly better than with the classic light-curve width parameters such as Δm15(B). Thus, our new linear relation can be used to infer peak luminosity from ${s}_{0}^{* }$. Unlike sBV (or Δm15(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.identifier.citationThe Astrophysical Journal, ISSN: 0004-637X (Print); 1538-4357 (Online), American Astronomical Society, 946(2), 101-101. doi: 10.3847/1538-4357/acc404
dc.identifier.doi10.3847/1538-4357/acc404
dc.identifier.issn0004-637X
dc.identifier.issn1538-4357
dc.identifier.urihttp://hdl.handle.net/10292/16549
dc.publisherAmerican Astronomical Society
dc.relation.urihttps://iopscience.iop.org/article/10.3847/1538-4357/acc404
dc.rights.accessrightsOpenAccess
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject5101 Astronomical Sciences
dc.subject51 Physical Sciences
dc.subject0201 Astronomical and Space Sciences
dc.subject0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
dc.subject0306 Physical Chemistry (incl. Structural)
dc.subjectAstronomy & Astrophysics
dc.subject5101 Astronomical sciences
dc.subject5107 Particle and high energy physics
dc.subject5109 Space sciences
dc.titleA Linear Relation between the Color Stretch sBV and the Rising Color Slope s0*(B−V) of Type Ia Supernovae
dc.typeJournal Article
pubs.elements-id501979
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