J/MNRAS/482/L75 The short period binary CSPN of M 3-1 (Jones+, 2019)
The short orbital period binary star at the heart of the planetary nebula M 3-1.
Jones D., Boffin H.M.J., Sowicka P., Miszalski B., Rodriguez-Gil P.,
Santander-Garcia M., Corradi R.L.M.
<Mon. Not. R. Astron. Soc. 482, L75-79 (2019)>
=2019MNRAS.482L..75J 2019MNRAS.482L..75J (SIMBAD/NED BibCode)
ADC_Keywords: Planetary nebulae ; Radial velocities ; Photometry
Keywords: stars: AGB and post-AGB - binaries: eclipsing -
binaries: spectroscopic -
planetary nebulae: individual: PN G242.6-11.6 -
planetary nebulae: individual: M 3-1 - binaries: close
Abstract:
We present the discovery of a 3h5m orbital-period binary star at the
heart of the planetary nebula M 3-1 - the shortest period
photometrically variable central star known and second only to
V458 Vul, in general. Combined modelling of light and radial velocity
curves reveals both components to be close to Roche lobe filling,
strongly indicating that the central star will rapidly evolve to
become a cataclysmic variable, perhaps experiencing a similar
evolution to V458 Vul resulting in a nova eruption before the
planetary nebula has fully dissipated. While the short orbital period
and near Roche lobe filling natures of both components make the
central binary of M 3-1 an important test case with which to constrain
the formation processes of cataclysmic variables, novae, and perhaps
even supernovae type Ia.
Description:
Time resolved photometric and radial velocity observations of the
binary central star system of the planetary nebula M3-1
Objects:
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RA (2000) DE Designation(s) (Per)
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07 02 49.90 -31 35 29.2 PN M3-1 = PN G242.6-11.6 (0.1270971)
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 30 171 H-beta continuum photometry of the central star
of M3-1
table2.dat 30 12 Radial velocity measurements of the central star
of M3-1
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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3- 15 F13.5 d JD Heliocentric Julian Date
19- 23 F5.2 mag mag Apparent magnitude in Hβ continuum
27- 30 F4.2 mag e_mag Uncertainty of magnitude
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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3- 15 F13.5 d JD Heliocentric Julian Date
19- 23 F5.1 km/s RV Radial velocity
27- 30 F4.1 km/s e_RV Uncertainty of radial velocity measurement
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Acknowledgements:
David Jones, djones(at)iac.es
(End) David Jones [IAC], Patricia Vannier [CDS] 27-Jul-2018