J/A+A/642/A108 PN G283.7-05.1 BVRI and RV curves (Jones+, 2020)
The post-common-envelope binary central star of the planetary nebula.
PN G283.7-05.1. A possible post-red-giant-branch planetary nebula central star.
Jones D., Boffin M.M.J., Hibbert J., Steinmetz T., Wesson R., Hillwig T.C.,
Sowicka P., Corradi R.L.M., Garcia-Rojas J., Rodriguez-Gil P., Munday J.
<Astron. Astrophys. 642, A108 (2020)>
=2020A&A...642A.108J 2020A&A...642A.108J (SIMBAD/NED BibCode)
ADC_Keywords: Planetary nebulae ; Binaries, eclipsing ;
Binaries, spectroscopic ; Photometry, UBVRI ; Radial velocities
Keywords: binaries: spectroscopic - binaries: eclipsing - binaries: close -
planetary nebulae: individual: PN G283.7-05.1 - stars:AGB and post-AGB
Abstract:
We present the discovery and characterisation of the
post-common-envelope central star system in the planetary nebula PN
G283.7-05.1. Deep images taken as part of the POPIPlaN survey indicate
that the nebula may possess a bipolar morphology similar to other
post-common-envelope planetary nebulae. Simultaneous light and radial
velocity curve modelling reveals the newly discovered binary system to
comprise a highly-irradiated, M-type main-sequence star in a 5.9 hour
orbit with a hot pre-white-dwarf. The nebular progenitor is found to
have a particularly low mass of around 0.4M☉, making PN
G283.7-05.1 one of only a handful of candidate planetary nebulae to be
the product of a common-envelope event while still on the red giant
branch. Beyond its low mass, the model temperature, surface gravity
and luminosity are all found to be consistent with the observed
stellar and nebular spectra through comparison with model atmospheres
and photoionisation modelling. However, the high temperature
(Teff∼95kK) and high luminosity of the central star of the nebula are
not consistent with post-RGB evolutionary tracks.
Description:
NTT-EFOSC2 photometry of the central star of PN G283.7-05.1 in B, V, R
and i-bands. VLT-FORS2 Heliocentric radial velocity measurements of
the hot and cool components of the central binary star system of PN
G283.7-05.1
Objects:
----------------------------------------------------------------------
RA (2000) DE Designation(s) (Per)
----------------------------------------------------------------------
09 58 32.3 -61 26 40 PN G283.7-05.1 = PHR J0958-6126 (0.245845)
----------------------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
bband.dat 33 179 B-band photometry of the central star
of PN G283.7-05.1
vband.dat 33 21 V-band photometry of the central star
of PN G283.7-05.1
rband.dat 33 96 R-band photometry of the central star
of PN G283.7-05.1
iband.dat 33 21 i-band photometry of the central star
of PN G283.7-05.1
rvcool.dat 25 5 Radial velocity measurements of the cool component
of the central star of PN G283.7-05.1
rvhot.dat 25 14 Radial velocity measurements of the hot component
of the central star of PN G283.7-05.1
--------------------------------------------------------------------------------
Byte-by-byte Description of file: bband.dat iband.dat rband.dat vband.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1 A1 --- Band [BVRi] Observed band
4- 16 F13.5 d HJD Heliocentric Julian date
20- 25 F6.3 mag mag Apparent magnitude in Band
29- 33 F5.3 mag e_mag Uncertainty on apparent magnitude
--------------------------------------------------------------------------------
Byte-by-byte Description of file: rvcool.dat rvhot.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 13 F13.5 d HJD Heliocentric Julian date
15- 20 F6.1 km/s RV Radial velocity
22- 25 F4.1 km/s e_RV Uncertainty on radial velocity measurement
--------------------------------------------------------------------------------
Acknowledgements:
David Jones, djones(at)iac.es
(End) Patricia Vannier [CDS] 03-Aug-2020