Ultraviolet, optical, and X-ray observations of the Type la supernova 2005am with Swift

P. J. Brown, S. T. Holland, C. James, P. Milne, P. W.A. Roming, K. O. Mason, K. L. Page, A. P. Beardmore, D. Burrows, A. Morgan, C. Gronwall, A. J. Blustin, P. Boyd, M. Still, A. Breeveld, M. De Pasquale, S. Hunsberger, M. Ivanushkina, W. Landsman, K. McGowanT. Poole, S. Rosen, P. Schady, N. Gehrels

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Abstract

We present ultraviolet and optical light curves in six broadband filters and grism spectra obtained by Swift's Ultraviolet/Optical Telescope for the Type la supernova SN 2005am. The data were collected beginning about 4 days before the B-band maximum, with excellent coverage of the rapid decline phase and later observations extending out to 69 days after the peak. The optical and near-UV light curve match well those of SN 1992A. The other UV observations constitute the first set of light curves shorter than 2500 Å and allow us to compare the light curve evolution in three UV bands. One interesting feature is that the decay in the intermediate UVM2 band is shallower than in the filters on either side and may result from the bump in the interstellar extinction curve. The UV behavior of this and other low-redshift supernovae can be used to constrain theories of progenitor evolution or to interpret optical light curves of high-redshift supernovae. Using Swift's X-Ray Telescope, we also report the upper limit to SN 2005am's X-ray luminosity to be 6 × 1039 ergs s-1 in the 0.3-10 keV. This result is derived from 58 ks of exposure time spread out over 7 weeks beginning 4 days before the B-band maximum.

Original languageEnglish (US)
Pages (from-to)1192-1196
Number of pages5
JournalAstrophysical Journal
Volume635
Issue number2 I
DOIs
StatePublished - Dec 20 2005

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light curve
supernovae
x rays
telescopes
filter
filters
interstellar extinction
ultraviolet radiation
erg
extinction
luminosity
broadband
decay
curves

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Brown, P. J., Holland, S. T., James, C., Milne, P., Roming, P. W. A., Mason, K. O., ... Gehrels, N. (2005). Ultraviolet, optical, and X-ray observations of the Type la supernova 2005am with Swift. Astrophysical Journal, 635(2 I), 1192-1196. https://doi.org/10.1086/497437
Brown, P. J. ; Holland, S. T. ; James, C. ; Milne, P. ; Roming, P. W.A. ; Mason, K. O. ; Page, K. L. ; Beardmore, A. P. ; Burrows, D. ; Morgan, A. ; Gronwall, C. ; Blustin, A. J. ; Boyd, P. ; Still, M. ; Breeveld, A. ; De Pasquale, M. ; Hunsberger, S. ; Ivanushkina, M. ; Landsman, W. ; McGowan, K. ; Poole, T. ; Rosen, S. ; Schady, P. ; Gehrels, N. / Ultraviolet, optical, and X-ray observations of the Type la supernova 2005am with Swift. In: Astrophysical Journal. 2005 ; Vol. 635, No. 2 I. pp. 1192-1196.
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Brown, PJ, Holland, ST, James, C, Milne, P, Roming, PWA, Mason, KO, Page, KL, Beardmore, AP, Burrows, D, Morgan, A, Gronwall, C, Blustin, AJ, Boyd, P, Still, M, Breeveld, A, De Pasquale, M, Hunsberger, S, Ivanushkina, M, Landsman, W, McGowan, K, Poole, T, Rosen, S, Schady, P & Gehrels, N 2005, 'Ultraviolet, optical, and X-ray observations of the Type la supernova 2005am with Swift', Astrophysical Journal, vol. 635, no. 2 I, pp. 1192-1196. https://doi.org/10.1086/497437

Ultraviolet, optical, and X-ray observations of the Type la supernova 2005am with Swift. / Brown, P. J.; Holland, S. T.; James, C.; Milne, P.; Roming, P. W.A.; Mason, K. O.; Page, K. L.; Beardmore, A. P.; Burrows, D.; Morgan, A.; Gronwall, C.; Blustin, A. J.; Boyd, P.; Still, M.; Breeveld, A.; De Pasquale, M.; Hunsberger, S.; Ivanushkina, M.; Landsman, W.; McGowan, K.; Poole, T.; Rosen, S.; Schady, P.; Gehrels, N.

In: Astrophysical Journal, Vol. 635, No. 2 I, 20.12.2005, p. 1192-1196.

Research output: Contribution to journalArticle

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T1 - Ultraviolet, optical, and X-ray observations of the Type la supernova 2005am with Swift

AU - Brown, P. J.

AU - Holland, S. T.

AU - James, C.

AU - Milne, P.

AU - Roming, P. W.A.

AU - Mason, K. O.

AU - Page, K. L.

AU - Beardmore, A. P.

AU - Burrows, D.

AU - Morgan, A.

AU - Gronwall, C.

AU - Blustin, A. J.

AU - Boyd, P.

AU - Still, M.

AU - Breeveld, A.

AU - De Pasquale, M.

AU - Hunsberger, S.

AU - Ivanushkina, M.

AU - Landsman, W.

AU - McGowan, K.

AU - Poole, T.

AU - Rosen, S.

AU - Schady, P.

AU - Gehrels, N.

PY - 2005/12/20

Y1 - 2005/12/20

N2 - We present ultraviolet and optical light curves in six broadband filters and grism spectra obtained by Swift's Ultraviolet/Optical Telescope for the Type la supernova SN 2005am. The data were collected beginning about 4 days before the B-band maximum, with excellent coverage of the rapid decline phase and later observations extending out to 69 days after the peak. The optical and near-UV light curve match well those of SN 1992A. The other UV observations constitute the first set of light curves shorter than 2500 Å and allow us to compare the light curve evolution in three UV bands. One interesting feature is that the decay in the intermediate UVM2 band is shallower than in the filters on either side and may result from the bump in the interstellar extinction curve. The UV behavior of this and other low-redshift supernovae can be used to constrain theories of progenitor evolution or to interpret optical light curves of high-redshift supernovae. Using Swift's X-Ray Telescope, we also report the upper limit to SN 2005am's X-ray luminosity to be 6 × 1039 ergs s-1 in the 0.3-10 keV. This result is derived from 58 ks of exposure time spread out over 7 weeks beginning 4 days before the B-band maximum.

AB - We present ultraviolet and optical light curves in six broadband filters and grism spectra obtained by Swift's Ultraviolet/Optical Telescope for the Type la supernova SN 2005am. The data were collected beginning about 4 days before the B-band maximum, with excellent coverage of the rapid decline phase and later observations extending out to 69 days after the peak. The optical and near-UV light curve match well those of SN 1992A. The other UV observations constitute the first set of light curves shorter than 2500 Å and allow us to compare the light curve evolution in three UV bands. One interesting feature is that the decay in the intermediate UVM2 band is shallower than in the filters on either side and may result from the bump in the interstellar extinction curve. The UV behavior of this and other low-redshift supernovae can be used to constrain theories of progenitor evolution or to interpret optical light curves of high-redshift supernovae. Using Swift's X-Ray Telescope, we also report the upper limit to SN 2005am's X-ray luminosity to be 6 × 1039 ergs s-1 in the 0.3-10 keV. This result is derived from 58 ks of exposure time spread out over 7 weeks beginning 4 days before the B-band maximum.

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Brown PJ, Holland ST, James C, Milne P, Roming PWA, Mason KO et al. Ultraviolet, optical, and X-ray observations of the Type la supernova 2005am with Swift. Astrophysical Journal. 2005 Dec 20;635(2 I):1192-1196. https://doi.org/10.1086/497437