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The Peculiar SN 2005hk: Do Some Type Ia Supernovae Explode as Deflagrations?
Open accessAbstract
We present extensive u ' g ' r ' i ' BVRIYJHK s photometry and optical spectroscopy of the Type Ia supernova (SN) 2005hk. These data reveal that SN 2005hk was nearly identical in its observed properties to SN 2002cx, which has been called "the most peculiar known Type Ia supernova." Both supernovae exhibited high‐ionization SN 1991T–like premaximum spectra, yet low peak luminosities like that of SN 1991bg. The spectra reveal that SN 2005hk, like SN 2002cx, exhibited expansion velocities that were roughly half those of typical Type Ia supernovae. The R and I light curves of both supernovae were also peculiar in not displaying the secondary maximum observed for normal Type Ia supernovae. Our YJH photometry of SN 2005hk reveals the same peculiarity in the near‐infrared. By combining our optical and near‐infrared photometry of SN 2005hk with published ultraviolet light curves obtained with the Swift satellite, we are able to construct a bolometric light curve from ∼15 days before to ∼60 days after B maximum. The shape and unusually low peak luminosity of this light curve, plus the low expansion velocities and absence of a secondary maximum at red and near‐infrared wavelengths, are all in reasonable agreement with model calculations of a three‐dimensional deflagration that produces ∼0.2 M ⊙ of 56 Ni.
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Self-citationMeasurements of Ω and Λ from 42 High‐Redshift Supernovae
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Self-citationThe Sloan Digital Sky Survey Photometric Camera
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Blondin, S., & Tonry, J. L. (2007) · The Astrophysical Journal · doi:10.1086/520494 · Cited by 507
THE SLOAN DIGITAL SKY SURVEY-II SUPERNOVA SURVEY: TECHNICAL SUMMARY
Frieman, J. A., Bassett, B., Becker, A., Choi, C., Cinabro, D., DeJongh, F., Depoy, D. L., Dilday, B., Doi, M., Garnavich, P. M., et al. (2008) · The Astronomical Journal · doi:10.1088/0004-6256/135/1/338 · Cited by 462
Self-citationTYPE Iax SUPERNOVAE: A NEW CLASS OF STELLAR EXPLOSION
Foley, R. J., Challis, P. J., Chornock, R., Ganeshalingam, M., Li, W., Marion, G. H., Morrell, N. I., Pignata, G., Stritzinger, M. D., Silverman, J. M., et al. (2013) · The Astrophysical Journal · doi:10.1088/0004-637x/767/1/57 · Cited by 391
Self-citationTHE CARNEGIE SUPERNOVA PROJECT: SECOND PHOTOMETRY DATA RELEASE OF LOW-REDSHIFT TYPE Ia SUPERNOVAE
Stritzinger, M. D., Phillips, M. M., Boldt, L. N., Burns, C., Campillay, A., Contreras, C., Gonzalez, S., Folatelli, G., Morrell, N., Krzeminski, W., et al. (2011) · The Astronomical Journal · doi:10.1088/0004-6256/142/5/156 · Cited by 286
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Metadata
- Authors
- Phillips, M. M., Li, W., Frieman, J. A., Blinnikov, S. I., DePoy, D., Prieto, J. L., Milne, P., Contreras, C., Folatelli, G., Morrell, N., Hamuy, M., Suntzeff, N. B., Roth, M., González, S., Krzeminski, W., Filippenko, A. V., Freedman, W. L., Chornock, R., Jha, S., Madore, B. F., Persson, S. E., Burns, C. R., Wyatt, P., Murphy, D., Foley, R. J., Ganeshalingam, M., Serduke, F. J. D., Krisciunas, K., Bassett, B., Becker, A., Dilday, B., Eastman, J., Garnavich, P. M., Holtzman, J., Kessler, R., Lampeitl, H., Marriner, J., Frank, S., Marshall, J. L., Miknaitis, G., Sako, M., Schneider, D. P., van der Heyden, K., & Yasuda, N.
- Venue
- Publications of the Astronomical Society of the Pacific
- Publisher
- IOP Publishing
- Published
- 2007-04
- Volume
- 119
- Issue
- 854
- Pages
- 360-387
- ISSN
- 0004-6280 (ISSN-L)
- 1538-3873
- OpenAlex
- W2262142531
- Cited by
- 219
- References
- 5
- FWCI
- 9.26
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Phillips, M. M., Li, W., Frieman, J. A., Blinnikov, S. I., DePoy, D., Prieto, J. L., Milne, P., Contreras, C., Folatelli, G., Morrell, N., Hamuy, M., Suntzeff, N. B., Roth, M., González, S., Krzeminski, W., Filippenko, A. V., Freedman, W. L., Chornock, R., Jha, S., . . . Yasuda, N. (2007). The Peculiar SN 2005hk: Do Some Type Ia Supernovae Explode as Deflagrations? Publications of the Astronomical Society of the Pacific. https://doi.org/10.1086/518372
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