The very short supersoft X-ray state of the classical nova M31N 2007-11a

M. Henze; W. Pietsch; G. Sala; M. Della Valle; M. Hernanz; J. Greiner; V. Burwitz; M. J. Freyberg; F. Haberl; D. H. Hartmann; P. Milne; G. G. Williams

doi:10.1051/0004-6361/200811581

The very short supersoft X-ray state of the classical nova M31N 2007-11a

M. Henze
, W. Pietsch
, G. Sala
, M. Della Valle
, M. Hernanz
, J. Greiner
, V. Burwitz
, M. J. Freyberg
, F. Haberl
, D. H. Hartmann
, P. Milne
, G. G. Williams

Steward Observatory

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

9 Scopus citations

Abstract

Context. Short supersoft X-ray source (SSS) states (durations ≤100 days) of classical novae (CNe) indicate massive white dwarfs that are candidate progenitors of supernovae type Ia.Aims. We carry out a dedicated optical and X-ray monitoring program of CNe in the bulge of M 31.Methods. We discovered M31N 2007-11a and determined its optical and X-ray light curve. We used the robotic Super-LOTIS telescope to obtain the optical data and XMM-Newton and Chandra observations to discover an X-ray counterpart to that nova.Results. Nova M31N 2007-11a is a very fast CN, exhibiting a very short SSS state with an appearance time of 6-16 days after outburst and a turn-off time of 45-58 days after outburst.Conclusions. The optical and X-ray light curves of M31N 2007-11a suggest a binary containing a white dwarf with M_WD > 1.0 M _⊙.

Original language	English (US)
Pages (from-to)	L13-L16
Journal	Astronomy and Astrophysics
Volume	498
Issue number	2
DOIs	https://doi.org/10.1051/0004-6361/200811581
State	Published - May 2009

Keywords

Galaxies: individual: M31
Novae, cataclysmic variables
Stars: individual: nova M31N 2007-11a-X-rays: galaxies

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1051/0004-6361/200811581

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title = "The very short supersoft X-ray state of the classical nova M31N 2007-11a",

abstract = "Context. Short supersoft X-ray source (SSS) states (durations ≤100 days) of classical novae (CNe) indicate massive white dwarfs that are candidate progenitors of supernovae type Ia.Aims. We carry out a dedicated optical and X-ray monitoring program of CNe in the bulge of M 31.Methods. We discovered M31N 2007-11a and determined its optical and X-ray light curve. We used the robotic Super-LOTIS telescope to obtain the optical data and XMM-Newton and Chandra observations to discover an X-ray counterpart to that nova.Results. Nova M31N 2007-11a is a very fast CN, exhibiting a very short SSS state with an appearance time of 6-16 days after outburst and a turn-off time of 45-58 days after outburst.Conclusions. The optical and X-ray light curves of M31N 2007-11a suggest a binary containing a white dwarf with MWD > 1.0 M ⊙.",

keywords = "Galaxies: individual: M31, Novae, cataclysmic variables, Stars: individual: nova M31N 2007-11a-X-rays: galaxies",

author = "M. Henze and W. Pietsch and G. Sala and \{Della Valle\}, M. and M. Hernanz and J. Greiner and V. Burwitz and Freyberg, \{M. J.\} and F. Haberl and Hartmann, \{D. H.\} and P. Milne and Williams, \{G. G.\}",

year = "2009",

month = may,

doi = "10.1051/0004-6361/200811581",

language = "English (US)",

volume = "498",

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journal = "Astronomy and Astrophysics",

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T1 - The very short supersoft X-ray state of the classical nova M31N 2007-11a

AU - Henze, M.

AU - Pietsch, W.

AU - Sala, G.

AU - Della Valle, M.

AU - Hernanz, M.

AU - Greiner, J.

AU - Burwitz, V.

AU - Freyberg, M. J.

AU - Haberl, F.

AU - Hartmann, D. H.

AU - Milne, P.

AU - Williams, G. G.

PY - 2009/5

Y1 - 2009/5

N2 - Context. Short supersoft X-ray source (SSS) states (durations ≤100 days) of classical novae (CNe) indicate massive white dwarfs that are candidate progenitors of supernovae type Ia.Aims. We carry out a dedicated optical and X-ray monitoring program of CNe in the bulge of M 31.Methods. We discovered M31N 2007-11a and determined its optical and X-ray light curve. We used the robotic Super-LOTIS telescope to obtain the optical data and XMM-Newton and Chandra observations to discover an X-ray counterpart to that nova.Results. Nova M31N 2007-11a is a very fast CN, exhibiting a very short SSS state with an appearance time of 6-16 days after outburst and a turn-off time of 45-58 days after outburst.Conclusions. The optical and X-ray light curves of M31N 2007-11a suggest a binary containing a white dwarf with MWD > 1.0 M ⊙.

AB - Context. Short supersoft X-ray source (SSS) states (durations ≤100 days) of classical novae (CNe) indicate massive white dwarfs that are candidate progenitors of supernovae type Ia.Aims. We carry out a dedicated optical and X-ray monitoring program of CNe in the bulge of M 31.Methods. We discovered M31N 2007-11a and determined its optical and X-ray light curve. We used the robotic Super-LOTIS telescope to obtain the optical data and XMM-Newton and Chandra observations to discover an X-ray counterpart to that nova.Results. Nova M31N 2007-11a is a very fast CN, exhibiting a very short SSS state with an appearance time of 6-16 days after outburst and a turn-off time of 45-58 days after outburst.Conclusions. The optical and X-ray light curves of M31N 2007-11a suggest a binary containing a white dwarf with MWD > 1.0 M ⊙.

KW - Galaxies: individual: M31

KW - Novae, cataclysmic variables

KW - Stars: individual: nova M31N 2007-11a-X-rays: galaxies

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The very short supersoft X-ray state of the classical nova M31N 2007-11a

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