The Type Ia supernova 1999aw: A probable 1999aa-like event in a low-luminosity host galaxy

L. G. Strolger; R. C. Smith; N. B. Suntzeff; M. M. Phillips; G. Aldering; P. Nugent; R. Knop; S. Perlmutter; R. A. Schommer; L. C. Ho; M. Hamuy; K. Krisciunas; L. M. Germany; R. Covarrubias; P. Candia; A. Athey; G. Blanc; A. Bonacic; T. Bowers; A. Conley; T. Dahlén; W. Freedman; G. Galaz; E. Gates; G. Goldhaber; A. Goobar; D. Groom; I. M. Hook; R. Marzke; M. Mateo; P. McCarthy; J. Méndez; C. Muena; S. E. Persson; R. Quimby; M. Roth; P. Ruiz-Lapuente; J. Sequel; A. Szentgyorgyi; K. Von Braun; W. M. Wood-Vasey; T. York

doi:10.1086/343058

The Type Ia supernova 1999aw: A probable 1999aa-like event in a low-luminosity host galaxy

L. G. Strolger, R. C. Smith, N. B. Suntzeff, M. M. Phillips, G. Aldering, P. Nugent, R. Knop, S. Perlmutter, R. A. Schommer, L. C. Ho, M. Hamuy, K. Krisciunas, L. M. Germany, R. Covarrubias, P. Candia, A. Athey, G. Blanc, A. Bonacic, T. Bowers, A. ConleyT. Dahlén, W. Freedman, G. Galaz, E. Gates, G. Goldhaber, A. Goobar, D. Groom, I. M. Hook, R. Marzke, M. Mateo, P. McCarthy, J. Méndez, C. Muena, S. E. Persson, R. Quimby, M. Roth, P. Ruiz-Lapuente, J. Sequel, A. Szentgyorgyi, K. Von Braun, W. M. Wood-Vasey, T. York

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

Abstract

SN 1999aw was discovered during the first campaign of the Nearby Galaxies Supernova Search project. This luminous, slow-declining [Δm ₁₅(B) = 0.81 ± 0.03] Type Ia supernova was noteworthy in at least two respects. First, it occurred in an extremely low luminosity host galaxy that was not visible in the template images nor in initial subsequent deep imaging. Second, the photometric and spectral properties of this supernova indicate that it very likely was similar to the subclass of Type Ia supernovae whose prototype is SN 1999aa. This paper presents the BVRI and J _SHK_S light curves of SN 1999aw (through ∼100 days past maximum light), as well as several epochs of optical spectra. From these data, we calculate the bolometric light curve and give estimates of the luminosity at maximum light and the initial ⁵⁶Ni mass. In addition, we present deep BVI images obtained recently with the Baade 6.5 m telescope at Las Campanas Observatory that reveal the remarkably low-luminosity host galaxy.

Original language	English (US)
Pages (from-to)	2905-2919
Number of pages	15
Journal	Astronomical Journal
Volume	124
Issue number	5 1763
DOIs	https://doi.org/10.1086/343058
State	Published - Nov 2002
Externally published	Yes

Keywords

Supernovae: general
Supernovae: individual (SN 1999aw)

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Online availability

10.1086/343058

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Strolger, L. G., Smith, R. C., Suntzeff, N. B., Phillips, M. M., Aldering, G., Nugent, P., Knop, R., Perlmutter, S., Schommer, R. A., Ho, L. C., Hamuy, M., Krisciunas, K., Germany, L. M., Covarrubias, R., Candia, P., Athey, A., Blanc, G., Bonacic, A., Bowers, T., ... York, T. (2002). The Type Ia supernova 1999aw: A probable 1999aa-like event in a low-luminosity host galaxy. Astronomical Journal, 124(5 1763), 2905-2919. https://doi.org/10.1086/343058

Strolger, LG, Smith, RC, Suntzeff, NB, Phillips, MM, Aldering, G, Nugent, P, Knop, R, Perlmutter, S, Schommer, RA, Ho, LC, Hamuy, M, Krisciunas, K, Germany, LM, Covarrubias, R, Candia, P, Athey, A, Blanc, G, Bonacic, A, Bowers, T, Conley, A, Dahlén, T, Freedman, W, Galaz, G, Gates, E, Goldhaber, G, Goobar, A, Groom, D, Hook, IM, Marzke, R, Mateo, M, McCarthy, P, Méndez, J, Muena, C, Persson, SE, Quimby, R, Roth, M, Ruiz-Lapuente, P, Sequel, J, Szentgyorgyi, A, Von Braun, K, Wood-Vasey, WM & York, T 2002, 'The Type Ia supernova 1999aw: A probable 1999aa-like event in a low-luminosity host galaxy', Astronomical Journal, vol. 124, no. 5 1763, pp. 2905-2919. https://doi.org/10.1086/343058

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title = "The Type Ia supernova 1999aw: A probable 1999aa-like event in a low-luminosity host galaxy",

abstract = "SN 1999aw was discovered during the first campaign of the Nearby Galaxies Supernova Search project. This luminous, slow-declining [Δm 15(B) = 0.81 ± 0.03] Type Ia supernova was noteworthy in at least two respects. First, it occurred in an extremely low luminosity host galaxy that was not visible in the template images nor in initial subsequent deep imaging. Second, the photometric and spectral properties of this supernova indicate that it very likely was similar to the subclass of Type Ia supernovae whose prototype is SN 1999aa. This paper presents the BVRI and J SHKS light curves of SN 1999aw (through ∼100 days past maximum light), as well as several epochs of optical spectra. From these data, we calculate the bolometric light curve and give estimates of the luminosity at maximum light and the initial 56Ni mass. In addition, we present deep BVI images obtained recently with the Baade 6.5 m telescope at Las Campanas Observatory that reveal the remarkably low-luminosity host galaxy.",

keywords = "Supernovae: general, Supernovae: individual (SN 1999aw)",

author = "Strolger, {L. G.} and Smith, {R. C.} and Suntzeff, {N. B.} and Phillips, {M. M.} and G. Aldering and P. Nugent and R. Knop and S. Perlmutter and Schommer, {R. A.} and Ho, {L. C.} and M. Hamuy and K. Krisciunas and Germany, {L. M.} and R. Covarrubias and P. Candia and A. Athey and G. Blanc and A. Bonacic and T. Bowers and A. Conley and T. Dahl{\'e}n and W. Freedman and G. Galaz and E. Gates and G. Goldhaber and A. Goobar and D. Groom and Hook, {I. M.} and R. Marzke and M. Mateo and P. McCarthy and J. M{\'e}ndez and C. Muena and Persson, {S. E.} and R. Quimby and M. Roth and P. Ruiz-Lapuente and J. Sequel and A. Szentgyorgyi and {Von Braun}, K. and Wood-Vasey, {W. M.} and T. York",

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TY - JOUR

T1 - The Type Ia supernova 1999aw

T2 - A probable 1999aa-like event in a low-luminosity host galaxy

AU - Strolger, L. G.

AU - Smith, R. C.

AU - Suntzeff, N. B.

AU - Phillips, M. M.

AU - Aldering, G.

AU - Nugent, P.

AU - Knop, R.

AU - Perlmutter, S.

AU - Schommer, R. A.

AU - Ho, L. C.

AU - Hamuy, M.

AU - Krisciunas, K.

AU - Germany, L. M.

AU - Covarrubias, R.

AU - Candia, P.

AU - Athey, A.

AU - Blanc, G.

AU - Bonacic, A.

AU - Bowers, T.

AU - Conley, A.

AU - Dahlén, T.

AU - Freedman, W.

AU - Galaz, G.

AU - Gates, E.

AU - Goldhaber, G.

AU - Goobar, A.

AU - Groom, D.

AU - Hook, I. M.

AU - Marzke, R.

AU - Mateo, M.

AU - McCarthy, P.

AU - Méndez, J.

AU - Muena, C.

AU - Persson, S. E.

AU - Quimby, R.

AU - Roth, M.

AU - Ruiz-Lapuente, P.

AU - Sequel, J.

AU - Szentgyorgyi, A.

AU - Von Braun, K.

AU - Wood-Vasey, W. M.

AU - York, T.

PY - 2002/11

Y1 - 2002/11

N2 - SN 1999aw was discovered during the first campaign of the Nearby Galaxies Supernova Search project. This luminous, slow-declining [Δm 15(B) = 0.81 ± 0.03] Type Ia supernova was noteworthy in at least two respects. First, it occurred in an extremely low luminosity host galaxy that was not visible in the template images nor in initial subsequent deep imaging. Second, the photometric and spectral properties of this supernova indicate that it very likely was similar to the subclass of Type Ia supernovae whose prototype is SN 1999aa. This paper presents the BVRI and J SHKS light curves of SN 1999aw (through ∼100 days past maximum light), as well as several epochs of optical spectra. From these data, we calculate the bolometric light curve and give estimates of the luminosity at maximum light and the initial 56Ni mass. In addition, we present deep BVI images obtained recently with the Baade 6.5 m telescope at Las Campanas Observatory that reveal the remarkably low-luminosity host galaxy.

AB - SN 1999aw was discovered during the first campaign of the Nearby Galaxies Supernova Search project. This luminous, slow-declining [Δm 15(B) = 0.81 ± 0.03] Type Ia supernova was noteworthy in at least two respects. First, it occurred in an extremely low luminosity host galaxy that was not visible in the template images nor in initial subsequent deep imaging. Second, the photometric and spectral properties of this supernova indicate that it very likely was similar to the subclass of Type Ia supernovae whose prototype is SN 1999aa. This paper presents the BVRI and J SHKS light curves of SN 1999aw (through ∼100 days past maximum light), as well as several epochs of optical spectra. From these data, we calculate the bolometric light curve and give estimates of the luminosity at maximum light and the initial 56Ni mass. In addition, we present deep BVI images obtained recently with the Baade 6.5 m telescope at Las Campanas Observatory that reveal the remarkably low-luminosity host galaxy.

KW - Supernovae: general

KW - Supernovae: individual (SN 1999aw)

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U2 - 10.1086/343058

DO - 10.1086/343058

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AN - SCOPUS:0037940788

SN - 0004-6256

VL - 124

SP - 2905

EP - 2919

JO - Astronomical Journal

JF - Astronomical Journal

IS - 5 1763

ER -

The Type Ia supernova 1999aw: A probable 1999aa-like event in a low-luminosity host galaxy

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