The properties of V838 Monocerotis in 2002 November

Ya V. Pavlenko; J. Th Van Loon; A. Evans; M. T. Rushton; B. M. Kaminsky; A. V. Filippenko; R. J. Foley; W. Li; B. Smalley; L. A. Yakovina

doi:10.1051/0004-6361:20065503

The properties of V838 Monocerotis in 2002 November

Ya V. Pavlenko
, J. Th Van Loon
, A. Evans
, M. T. Rushton
, B. M. Kaminsky
, A. V. Filippenko
, R. J. Foley
, W. Li
, B. Smalley
, L. A. Yakovina

Astronomy

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

Abstract

We present the results of modelling the 0.45-1 μm spectral energy distribution of V838 Mon for 2002 November. Synthetic spectra were calculated using the NextGen model atmospheres of Hauschildt et al. (1999, ApJ, 512, 377), which incorporate line lists for H₂O, TiO, CrH, FeH, CO, and MgH, as well as the VALD atomic line list. Fits to the observed spectra show that, in 2002 November, the effective temperature of V838 Mon was approximately 2000 ± 100 K. Our theoretical spectra show a comparatively weak dependence on log g. Preliminary analysis of the hot star observed together with V838 Mon shows it to be a normal B3V dwarf.

Original language	English (US)
Pages (from-to)	245-250
Number of pages	6
Journal	Astronomy and Astrophysics
Volume	460
Issue number	1
DOIs	https://doi.org/10.1051/0004-6361:20065503
State	Published - Dec 2006

Keywords

Stars: atmospheres
Stars: evolution
Stars: individual: V838 Mon

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Online availability

10.1051/0004-6361:20065503

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title = "The properties of V838 Monocerotis in 2002 November",

abstract = "We present the results of modelling the 0.45-1 μm spectral energy distribution of V838 Mon for 2002 November. Synthetic spectra were calculated using the NextGen model atmospheres of Hauschildt et al. (1999, ApJ, 512, 377), which incorporate line lists for H2O, TiO, CrH, FeH, CO, and MgH, as well as the VALD atomic line list. Fits to the observed spectra show that, in 2002 November, the effective temperature of V838 Mon was approximately 2000 ± 100 K. Our theoretical spectra show a comparatively weak dependence on log g. Preliminary analysis of the hot star observed together with V838 Mon shows it to be a normal B3V dwarf.",

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doi = "10.1051/0004-6361:20065503",

language = "English (US)",

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T1 - The properties of V838 Monocerotis in 2002 November

AU - Pavlenko, Ya V.

AU - Van Loon, J. Th

AU - Evans, A.

AU - Rushton, M. T.

AU - Kaminsky, B. M.

AU - Filippenko, A. V.

AU - Foley, R. J.

AU - Li, W.

AU - Smalley, B.

AU - Yakovina, L. A.

PY - 2006/12

Y1 - 2006/12

N2 - We present the results of modelling the 0.45-1 μm spectral energy distribution of V838 Mon for 2002 November. Synthetic spectra were calculated using the NextGen model atmospheres of Hauschildt et al. (1999, ApJ, 512, 377), which incorporate line lists for H2O, TiO, CrH, FeH, CO, and MgH, as well as the VALD atomic line list. Fits to the observed spectra show that, in 2002 November, the effective temperature of V838 Mon was approximately 2000 ± 100 K. Our theoretical spectra show a comparatively weak dependence on log g. Preliminary analysis of the hot star observed together with V838 Mon shows it to be a normal B3V dwarf.

AB - We present the results of modelling the 0.45-1 μm spectral energy distribution of V838 Mon for 2002 November. Synthetic spectra were calculated using the NextGen model atmospheres of Hauschildt et al. (1999, ApJ, 512, 377), which incorporate line lists for H2O, TiO, CrH, FeH, CO, and MgH, as well as the VALD atomic line list. Fits to the observed spectra show that, in 2002 November, the effective temperature of V838 Mon was approximately 2000 ± 100 K. Our theoretical spectra show a comparatively weak dependence on log g. Preliminary analysis of the hot star observed together with V838 Mon shows it to be a normal B3V dwarf.

KW - Stars: atmospheres

KW - Stars: evolution

KW - Stars: individual: V838 Mon

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JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 1

ER -

The properties of V838 Monocerotis in 2002 November

Abstract

Keywords

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