Distance determination to 12 type ii supernovae using the expanding photosphere method

M. I. Jones; Mario Hamuy; P. Lira; J. Maza; A. Clocchiatti; M. Phillips; N. Morrell; M. Roth; N. B. Suntzeff; T. Matheson; A. V. Filippenko; R. J. Foley; D. C. Leonard

doi:10.1088/0004-637X/696/2/1176

Distance determination to 12 type ii supernovae using the expanding photosphere method

M. I. Jones, Mario Hamuy, P. Lira, J. Maza, A. Clocchiatti, M. Phillips, N. Morrell, M. Roth, N. B. Suntzeff, T. Matheson, A. V. Filippenko, R. J. Foley, D. C. Leonard

Astronomy

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Abstract

We use early-time photometry and spectroscopy of 12 Type II plateau supernovae (SNe IIP) to derive their distances using the expanding photosphere method (EPM). We perform this study using two sets of Type II supernova (SN II) atmosphere models, three filter subsets ({BV}, {BVI}, and {VI}), and two methods for the host-galaxy extinction, which leads to 12 Hubble diagrams. We find that systematic differences in the atmosphere models lead to ∼50% differences in the EPM distances and to a value of H ₀ between 52 and 101 km s ^-1Mpc^-1. Using the {VI} filter subset we obtain the lowest dispersion in the Hubble diagram, σ_μ = 0.32 mag. We also apply the EPM analysis to the well observed SN IIP 1999em. With the {VI} filter subset we derive a distance ranging from 9.3 ± 0.5 Mpc to 13.9 ± 1.4 Mpc depending on the atmosphere model employed.

Original language	English (US)
Pages (from-to)	1176-1194
Number of pages	19
Journal	Astrophysical Journal
Volume	696
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/696/2/1176
State	Published - May 10 2009

Keywords

distance scale
supernovae: general

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/0004-637X/696/2/1176

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title = "Distance determination to 12 type ii supernovae using the expanding photosphere method",

abstract = "We use early-time photometry and spectroscopy of 12 Type II plateau supernovae (SNe IIP) to derive their distances using the expanding photosphere method (EPM). We perform this study using two sets of Type II supernova (SN II) atmosphere models, three filter subsets ({BV}, {BVI}, and {VI}), and two methods for the host-galaxy extinction, which leads to 12 Hubble diagrams. We find that systematic differences in the atmosphere models lead to ∼50% differences in the EPM distances and to a value of H 0 between 52 and 101 km s -1Mpc-1. Using the {VI} filter subset we obtain the lowest dispersion in the Hubble diagram, σμ = 0.32 mag. We also apply the EPM analysis to the well observed SN IIP 1999em. With the {VI} filter subset we derive a distance ranging from 9.3 ± 0.5 Mpc to 13.9 ± 1.4 Mpc depending on the atmosphere model employed.",

keywords = "distance scale, supernovae: general",

author = "Jones, {M. I.} and Mario Hamuy and P. Lira and J. Maza and A. Clocchiatti and M. Phillips and N. Morrell and M. Roth and Suntzeff, {N. B.} and T. Matheson and Filippenko, {A. V.} and Foley, {R. J.} and Leonard, {D. C.}",

year = "2009",

month = may,

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doi = "10.1088/0004-637X/696/2/1176",

language = "English (US)",

volume = "696",

pages = "1176--1194",

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T1 - Distance determination to 12 type ii supernovae using the expanding photosphere method

AU - Jones, M. I.

AU - Hamuy, Mario

AU - Lira, P.

AU - Maza, J.

AU - Clocchiatti, A.

AU - Phillips, M.

AU - Morrell, N.

AU - Roth, M.

AU - Suntzeff, N. B.

AU - Matheson, T.

AU - Filippenko, A. V.

AU - Foley, R. J.

AU - Leonard, D. C.

PY - 2009/5/10

Y1 - 2009/5/10

N2 - We use early-time photometry and spectroscopy of 12 Type II plateau supernovae (SNe IIP) to derive their distances using the expanding photosphere method (EPM). We perform this study using two sets of Type II supernova (SN II) atmosphere models, three filter subsets ({BV}, {BVI}, and {VI}), and two methods for the host-galaxy extinction, which leads to 12 Hubble diagrams. We find that systematic differences in the atmosphere models lead to ∼50% differences in the EPM distances and to a value of H 0 between 52 and 101 km s -1Mpc-1. Using the {VI} filter subset we obtain the lowest dispersion in the Hubble diagram, σμ = 0.32 mag. We also apply the EPM analysis to the well observed SN IIP 1999em. With the {VI} filter subset we derive a distance ranging from 9.3 ± 0.5 Mpc to 13.9 ± 1.4 Mpc depending on the atmosphere model employed.

AB - We use early-time photometry and spectroscopy of 12 Type II plateau supernovae (SNe IIP) to derive their distances using the expanding photosphere method (EPM). We perform this study using two sets of Type II supernova (SN II) atmosphere models, three filter subsets ({BV}, {BVI}, and {VI}), and two methods for the host-galaxy extinction, which leads to 12 Hubble diagrams. We find that systematic differences in the atmosphere models lead to ∼50% differences in the EPM distances and to a value of H 0 between 52 and 101 km s -1Mpc-1. Using the {VI} filter subset we obtain the lowest dispersion in the Hubble diagram, σμ = 0.32 mag. We also apply the EPM analysis to the well observed SN IIP 1999em. With the {VI} filter subset we derive a distance ranging from 9.3 ± 0.5 Mpc to 13.9 ± 1.4 Mpc depending on the atmosphere model employed.

KW - distance scale

KW - supernovae: general

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JO - Astrophysical Journal

JF - Astrophysical Journal

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Distance determination to 12 type ii supernovae using the expanding photosphere method

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