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A Linear Relation b...
A Linear Relation between the Color Stretch sBV and the Rising Color Slope s0*(B – V) of Type Ia Supernovae
- Article/chapterEnglish2023
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LIBRIS-ID:oai:DiVA.org:su-220248
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-220248URI
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https://doi.org/10.3847/1538-4357/acc404DOI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
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Using 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 s0*(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 s0*. Unlike sBV (or Δm15(B)), the measurement of s0*(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.
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Dong, Subo
(author)
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Ashall, Chris
(author)
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Benetti, S.
(author)
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Bersier, D.
(author)
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Bose, S.
(author)
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Brimacombe, Joseph
(author)
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Brink, Thomas G.
(author)
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Buckley, David A. H.
(author)
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Cappellaro, Enrico
(author)
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Christie, Grant W.
(author)
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Elias-Rosa, N.
(author)
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Filippenko, Alexei V.
(author)
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Gromadzki, Mariusz
(author)
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Holoien, Thomas W. -S.
(author)
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Hu, Shaoming
(author)
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Kochanek, C. S.
(author)
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Koff, Robert
(author)
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Kollmeier, Juna A.
(author)
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Lundqvist, Peter,1957-Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)lundq
(author)
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Mattila, S.
(author)
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Milne, Peter A.
(author)
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Muñoz, J. A.
(author)
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Mutel, Robert
(author)
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Natusch, Tim
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Nicolas, Joel
(author)
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Pastorello, A.
(author)
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Prentice, Simon
(author)
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Prieto, J. L.
(author)
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Roth, Tyler
(author)
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Shappee, B. J.
(author)
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Stone, Geoffrey
(author)
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Stanek, K. Z.
(author)
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Stritzinger, M. D.
(author)
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Thompson, Todd A.
(author)
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Tomasella, Lina
(author)
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Villanueva, Steven
(author)
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Stockholms universitetInstitutionen för astronomi
(creator_code:org_t)
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In:Astrophysical Journal946:20004-637X1538-4357
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Chen, Ping
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Dong, Subo
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Ashall, Chris
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Benetti, S.
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Bersier, D.
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Bose, S.
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Brimacombe, Jose ...
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Brink, Thomas G.
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Buckley, David A ...
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Cappellaro, Enri ...
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Christie, Grant ...
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Elias-Rosa, N.
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Filippenko, Alex ...
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Gromadzki, Mariu ...
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Holoien, Thomas ...
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Hu, Shaoming
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Kochanek, C. S.
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Koff, Robert
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Kollmeier, Juna ...
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Lundqvist, Peter ...
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Mattila, S.
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Milne, Peter A.
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Muñoz, J. A.
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Mutel, Robert
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Natusch, Tim
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Nicolas, Joel
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Pastorello, A.
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Prentice, Simon
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Prieto, J. L.
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Roth, Tyler
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Shappee, B. J.
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Stone, Geoffrey
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Stanek, K. Z.
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Stritzinger, M. ...
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Thompson, Todd A ...
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Tomasella, Lina
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Villanueva, Stev ...
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Stockholm University