GALEX spectroscopy of SN 2005ay suggests ultraviolet spectral uniformity among Type II-P supernovae

A. Gal-Yam; F. Bufano; T. A. Barlow; E. Baron; S. Benetti; E. Cappellaro; P. J. Challis; R. S. Ellis; A. V. Filippenko; R. J. Foley; D. B. Fox; M. Hicken; R. P. Kirshner; D. C. Leonard; W. Li; D. Maoz; T. Matheson; P. A. Mazzali; M. Modjaz; K. Nomoto; E. O. Ofek; J. D. Simon; T. A. Small; G. P. Smith; M. Turatto; S. D. Van Dyk; L. Zampieri

doi:10.1086/592744

GALEX spectroscopy of SN 2005ay suggests ultraviolet spectral uniformity among Type II-P supernovae

A. Gal-Yam, F. Bufano, T. A. Barlow, E. Baron, S. Benetti, E. Cappellaro, P. J. Challis, R. S. Ellis, A. V. Filippenko, R. J. Foley, D. B. Fox, M. Hicken, R. P. Kirshner, D. C. Leonard, W. Li, D. Maoz, T. Matheson, P. A. Mazzali, M. Modjaz, K. NomotoE. O. Ofek, J. D. Simon, T. A. Small, G. P. Smith, M. Turatto, S. D. Van Dyk, L. Zampieri

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Abstract

We present the initial results from our GALEX program designed to obtain ultraviolet (UV) spectra of nearby core-collapse supernovae (SNe). Our first target, SN 2005ay in the nearby galaxy NGC 3938, is a typical member of the SN II-P subclass. Our spectra show remarkable similarity to those of the prototypical Type II-P SN 1999em, and resemble also Swift observations of the recent Type II-P SN 2005cs. Taken together, the observations of these three events trace the UV spectral evolution of SNe II-P during the first month after explosion, as required in order to interpret optical observations of high-redshift SNe II-P, and to derive cross-filter K-corrections. While still highly preliminary, the apparent UV homogeneity of SNe II-P bodes well for the use of these events as cosmological probes at high redshift.

Original language	English (US)
Pages (from-to)	L117-L120
Journal	Astrophysical Journal
Volume	685
Issue number	2 PART 2
DOIs	https://doi.org/10.1086/592744
State	Published - 2008

Keywords

General
Individual (SN 2005ay)
Supernovae
Ultraviolet

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/592744

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Gal-Yam, A., Bufano, F., Barlow, T. A., Baron, E., Benetti, S., Cappellaro, E., Challis, P. J., Ellis, R. S., Filippenko, A. V., Foley, R. J., Fox, D. B., Hicken, M., Kirshner, R. P., Leonard, D. C., Li, W., Maoz, D., Matheson, T., Mazzali, P. A., Modjaz, M., ... Zampieri, L. (2008). GALEX spectroscopy of SN 2005ay suggests ultraviolet spectral uniformity among Type II-P supernovae. Astrophysical Journal, 685(2 PART 2), L117-L120. https://doi.org/10.1086/592744

Gal-Yam, A, Bufano, F, Barlow, TA, Baron, E, Benetti, S, Cappellaro, E, Challis, PJ, Ellis, RS, Filippenko, AV, Foley, RJ, Fox, DB, Hicken, M, Kirshner, RP, Leonard, DC, Li, W, Maoz, D, Matheson, T, Mazzali, PA, Modjaz, M, Nomoto, K, Ofek, EO, Simon, JD, Small, TA, Smith, GP, Turatto, M, Van Dyk, SD & Zampieri, L 2008, 'GALEX spectroscopy of SN 2005ay suggests ultraviolet spectral uniformity among Type II-P supernovae', Astrophysical Journal, vol. 685, no. 2 PART 2, pp. L117-L120. https://doi.org/10.1086/592744

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title = "GALEX spectroscopy of SN 2005ay suggests ultraviolet spectral uniformity among Type II-P supernovae",

abstract = "We present the initial results from our GALEX program designed to obtain ultraviolet (UV) spectra of nearby core-collapse supernovae (SNe). Our first target, SN 2005ay in the nearby galaxy NGC 3938, is a typical member of the SN II-P subclass. Our spectra show remarkable similarity to those of the prototypical Type II-P SN 1999em, and resemble also Swift observations of the recent Type II-P SN 2005cs. Taken together, the observations of these three events trace the UV spectral evolution of SNe II-P during the first month after explosion, as required in order to interpret optical observations of high-redshift SNe II-P, and to derive cross-filter K-corrections. While still highly preliminary, the apparent UV homogeneity of SNe II-P bodes well for the use of these events as cosmological probes at high redshift.",

keywords = "General, Individual (SN 2005ay), Supernovae, Ultraviolet",

author = "A. Gal-Yam and F. Bufano and Barlow, {T. A.} and E. Baron and S. Benetti and E. Cappellaro and Challis, {P. J.} and Ellis, {R. S.} and Filippenko, {A. V.} and Foley, {R. J.} and Fox, {D. B.} and M. Hicken and Kirshner, {R. P.} and Leonard, {D. C.} and W. Li and D. Maoz and T. Matheson and Mazzali, {P. A.} and M. Modjaz and K. Nomoto and Ofek, {E. O.} and Simon, {J. D.} and Small, {T. A.} and Smith, {G. P.} and M. Turatto and {Van Dyk}, {S. D.} and L. Zampieri",

year = "2008",

doi = "10.1086/592744",

language = "English (US)",

volume = "685",

pages = "L117--L120",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "American Astronomical Society",

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TY - JOUR

T1 - GALEX spectroscopy of SN 2005ay suggests ultraviolet spectral uniformity among Type II-P supernovae

AU - Gal-Yam, A.

AU - Bufano, F.

AU - Barlow, T. A.

AU - Baron, E.

AU - Benetti, S.

AU - Cappellaro, E.

AU - Challis, P. J.

AU - Ellis, R. S.

AU - Filippenko, A. V.

AU - Foley, R. J.

AU - Fox, D. B.

AU - Hicken, M.

AU - Kirshner, R. P.

AU - Leonard, D. C.

AU - Li, W.

AU - Maoz, D.

AU - Matheson, T.

AU - Mazzali, P. A.

AU - Modjaz, M.

AU - Nomoto, K.

AU - Ofek, E. O.

AU - Simon, J. D.

AU - Small, T. A.

AU - Smith, G. P.

AU - Turatto, M.

AU - Van Dyk, S. D.

AU - Zampieri, L.

PY - 2008

Y1 - 2008

N2 - We present the initial results from our GALEX program designed to obtain ultraviolet (UV) spectra of nearby core-collapse supernovae (SNe). Our first target, SN 2005ay in the nearby galaxy NGC 3938, is a typical member of the SN II-P subclass. Our spectra show remarkable similarity to those of the prototypical Type II-P SN 1999em, and resemble also Swift observations of the recent Type II-P SN 2005cs. Taken together, the observations of these three events trace the UV spectral evolution of SNe II-P during the first month after explosion, as required in order to interpret optical observations of high-redshift SNe II-P, and to derive cross-filter K-corrections. While still highly preliminary, the apparent UV homogeneity of SNe II-P bodes well for the use of these events as cosmological probes at high redshift.

AB - We present the initial results from our GALEX program designed to obtain ultraviolet (UV) spectra of nearby core-collapse supernovae (SNe). Our first target, SN 2005ay in the nearby galaxy NGC 3938, is a typical member of the SN II-P subclass. Our spectra show remarkable similarity to those of the prototypical Type II-P SN 1999em, and resemble also Swift observations of the recent Type II-P SN 2005cs. Taken together, the observations of these three events trace the UV spectral evolution of SNe II-P during the first month after explosion, as required in order to interpret optical observations of high-redshift SNe II-P, and to derive cross-filter K-corrections. While still highly preliminary, the apparent UV homogeneity of SNe II-P bodes well for the use of these events as cosmological probes at high redshift.

KW - General

KW - Individual (SN 2005ay)

KW - Supernovae

KW - Ultraviolet

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U2 - 10.1086/592744

DO - 10.1086/592744

M3 - Article

AN - SCOPUS:65649148502

SN - 0004-637X

VL - 685

SP - L117-L120

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2 PART 2

ER -

GALEX spectroscopy of SN 2005ay suggests ultraviolet spectral uniformity among Type II-P supernovae

Abstract

Keywords

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