Do the photometric colors of Type II-P Supernovae allow accurate determination of host galaxy extinction?.
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2009-01Metadata
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Krisciunas, Kevin
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Do the photometric colors of Type II-P Supernovae allow accurate determination of host galaxy extinction?.
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Abstract
We present infrared photometry of supernova (SN) 1999em, plus optical photometry, infrared photometry,
and optical spectroscopy of SN 2003hn. Both objects were Type II-P SNe. The V − [RIJHK] color curves
of these SNe evolved in a very similar fashion until the end of the plateau phase. This allows us to
determine how much more extinction the light of SN 2003hn suffered compared to SN 1999em. Since
we have an estimate of the total extinction suffered by SN 1999em from model fits of ground-based and
space-based spectra as well as photometry of SN 1999em, we can estimate the total extinction and absolute
magnitudes of SN 2003hn with reasonable accuracy. Since the host galaxy of SN 2003hn also produced the
Type Ia SN 2001el, we can directly compare the absolute magnitudes of these two SNe of different types.
General note
Arítulo de publicación ISI.
Patrocinador
NASA through Hubble
Fellowship grant HST-HF-01139.01-A, by Fondecyt through
grant 1060808, Centro de Astrof´ısica FONDAP 15010003,
the Millennium Center for Supernova Science through grant
P06-045-F funded by “Programa Bicentenario de Ciencia y
Tecnolog´ıa de CONICYT” and “Programa Iniciativa Cient´ıfica
Milenio de MIDEPLAN.”
Identifier
URI: https://repositorio.uchile.cl/handle/2250/126189
DOI: doi:10.1088/0004-6256/137/1/34
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The Astronomical Journal, 137:34–41, 2009 January
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