SN 1992K: A twin to the subluminous type Ia SN 1991bg

Mario Hamuy; M. M. Phillips; José Maza; Nicholas B. Suntzeff; Massimo Della Valle; J. Danziger; R. Antezana; M. Wischnjwesky; Roberto Avilés; Robert A. Schommer; Y. C. Kim; Lisa A. Wells; María Teresa Ruiz; Charles F. Prosser; W. Krzeminski; Charles D. Baylin; Patrick Hartigan; Joanne Hughes

doi:10.1086/117235

SN 1992K: A twin to the subluminous type Ia SN 1991bg

Mario Hamuy, M. M. Phillips, José Maza, Nicholas B. Suntzeff, Massimo Della Valle, J. Danziger, R. Antezana, M. Wischnjwesky, Roberto Avilés, Robert A. Schommer, Y. C. Kim, Lisa A. Wells, María Teresa Ruiz, Charles F. Prosser, W. Krzeminski, Charles D. Baylin, Patrick Hartigan, Joanne Hughes

Department of Astronomy

Research output: Contribution to journal › Article › peer-review

57 Citations (Scopus)

Abstract

We present spectroscopic and photometric data for SN 1992K, a Type Ia event found in the course of the Calán/Tololo supernova survey. These data show an impressive similarity with the spectra and light curves of the atypical Type Ia SN 1991bg. In particular, the remarkably red color and low luminosity of SN 1991bg are closely mimicked by SN 1992K. The discovery of SN 1992K confirms that the family of Type Ia supernovae covers a range of a factor of 5 or more in peak bolometric luminosity. Given their fast-declining light curves and considerably lower luminosity, SN 1991bg-like events are very likely selected against in traditional flux-limited supernova searches; nevertheless these objects could be quite common in a volume-limited sample.

Original language	English
Pages (from-to)	2226-2232
Number of pages	7
Journal	Astronomical Journal
Volume	108
Issue number	6
DOIs	https://doi.org/10.1086/117235
Publication status	Published - 1994 Dec

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1086/117235

Cite this

Hamuy, M., Phillips, M. M., Maza, J., Suntzeff, N. B., Della Valle, M., Danziger, J., Antezana, R., Wischnjwesky, M., Avilés, R., Schommer, R. A., Kim, Y. C., Wells, L. A., Ruiz, M. T., Prosser, C. F., Krzeminski, W., Baylin, C. D., Hartigan, P., & Hughes, J. (1994). SN 1992K: A twin to the subluminous type Ia SN 1991bg. Astronomical Journal, 108(6), 2226-2232. https://doi.org/10.1086/117235

@article{5eede157613e41bbab681100108c3c86,

title = "SN 1992K: A twin to the subluminous type Ia SN 1991bg",

abstract = "We present spectroscopic and photometric data for SN 1992K, a Type Ia event found in the course of the Cal{\'a}n/Tololo supernova survey. These data show an impressive similarity with the spectra and light curves of the atypical Type Ia SN 1991bg. In particular, the remarkably red color and low luminosity of SN 1991bg are closely mimicked by SN 1992K. The discovery of SN 1992K confirms that the family of Type Ia supernovae covers a range of a factor of 5 or more in peak bolometric luminosity. Given their fast-declining light curves and considerably lower luminosity, SN 1991bg-like events are very likely selected against in traditional flux-limited supernova searches; nevertheless these objects could be quite common in a volume-limited sample.",

author = "Mario Hamuy and Phillips, {M. M.} and Jos{\'e} Maza and Suntzeff, {Nicholas B.} and {Della Valle}, Massimo and J. Danziger and R. Antezana and M. Wischnjwesky and Roberto Avil{\'e}s and Schommer, {Robert A.} and Kim, {Y. C.} and Wells, {Lisa A.} and Ruiz, {Mar{\'i}a Teresa} and Prosser, {Charles F.} and W. Krzeminski and Baylin, {Charles D.} and Patrick Hartigan and Joanne Hughes",

year = "1994",

month = dec,

doi = "10.1086/117235",

language = "English",

volume = "108",

pages = "2226--2232",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing Ltd.",

number = "6",

}

Hamuy, M, Phillips, MM, Maza, J, Suntzeff, NB, Della Valle, M, Danziger, J, Antezana, R, Wischnjwesky, M, Avilés, R, Schommer, RA, Kim, YC, Wells, LA, Ruiz, MT, Prosser, CF, Krzeminski, W, Baylin, CD, Hartigan, P & Hughes, J 1994, 'SN 1992K: A twin to the subluminous type Ia SN 1991bg', Astronomical Journal, vol. 108, no. 6, pp. 2226-2232. https://doi.org/10.1086/117235

TY - JOUR

T1 - SN 1992K

T2 - A twin to the subluminous type Ia SN 1991bg

AU - Hamuy, Mario

AU - Phillips, M. M.

AU - Maza, José

AU - Suntzeff, Nicholas B.

AU - Della Valle, Massimo

AU - Danziger, J.

AU - Antezana, R.

AU - Wischnjwesky, M.

AU - Avilés, Roberto

AU - Schommer, Robert A.

AU - Kim, Y. C.

AU - Wells, Lisa A.

AU - Ruiz, María Teresa

AU - Prosser, Charles F.

AU - Krzeminski, W.

AU - Baylin, Charles D.

AU - Hartigan, Patrick

AU - Hughes, Joanne

PY - 1994/12

Y1 - 1994/12

N2 - We present spectroscopic and photometric data for SN 1992K, a Type Ia event found in the course of the Calán/Tololo supernova survey. These data show an impressive similarity with the spectra and light curves of the atypical Type Ia SN 1991bg. In particular, the remarkably red color and low luminosity of SN 1991bg are closely mimicked by SN 1992K. The discovery of SN 1992K confirms that the family of Type Ia supernovae covers a range of a factor of 5 or more in peak bolometric luminosity. Given their fast-declining light curves and considerably lower luminosity, SN 1991bg-like events are very likely selected against in traditional flux-limited supernova searches; nevertheless these objects could be quite common in a volume-limited sample.

AB - We present spectroscopic and photometric data for SN 1992K, a Type Ia event found in the course of the Calán/Tololo supernova survey. These data show an impressive similarity with the spectra and light curves of the atypical Type Ia SN 1991bg. In particular, the remarkably red color and low luminosity of SN 1991bg are closely mimicked by SN 1992K. The discovery of SN 1992K confirms that the family of Type Ia supernovae covers a range of a factor of 5 or more in peak bolometric luminosity. Given their fast-declining light curves and considerably lower luminosity, SN 1991bg-like events are very likely selected against in traditional flux-limited supernova searches; nevertheless these objects could be quite common in a volume-limited sample.

UR - http://www.scopus.com/inward/record.url?scp=0001195210&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001195210&partnerID=8YFLogxK

U2 - 10.1086/117235

DO - 10.1086/117235

M3 - Article

AN - SCOPUS:0001195210

SN - 0004-6256

VL - 108

SP - 2226

EP - 2232

JO - Astronomical Journal

JF - Astronomical Journal

IS - 6

ER -

SN 1992K: A twin to the subluminous type Ia SN 1991bg

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this