BD+33 2642 and HD 112313 radial velocities : J/A+A/563/L10

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Authors : Van Winckel H. orcid , Jorissen A., Exter K. (hide) , Jorissen A., Exter K. et..al

VizieR DOI : 10.26093/cds/vizier.35639010
Bibcode : 2014A&A...563L..10V (ADS) (Simbad) (Objects)
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CDS Keywords : Binaries, orbits; Binaries, spectroscopic; Planetary nebulae; Spectroscopy
UAT : Orbits, Spectroscopic binary stars, Planetary nebulae, Spectroscopy

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Inserted into VizieR : 21-Mar-2014
Last modification : 27-Jun-2017

Binary central stars of planetary nebulae with long orbits the radial velocity orbit of BD+33 2642 (PN G052.7+50.7) and the orbital motion of HD 112313 (PN LoTr5). (2014)

Keywords : binaries spectroscopic - stars: chemically peculiar - planetary nebulae: individual: BD+33 2642 - planetary nebulae: individual: LoTr5 - techniques: radial velocities

Abstract:We study the impact of binary interaction processes on the evolution of low- and intermediate-mass stars using long-term monitoring of their radial velocity. Here we report on our results on the central stars of two planetary nebulae (PNe): the well-studied spectrophotometric standard BD+33 2642 (central star of PNG 052.7+50.7) and HD 112313 (central star of PN LoTr5), the optical light of which is dominated by a rapidly rotating G star. ...(more)
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Astronomy and Astrophysics policies
We used the HERMES spectrograph mounted on the 1.2m Flemish Mercator telescope to monitor central stars of Planetary Nebulae. Here we report on the detection of the orbit of BD+33.2642 (central star of PN G052.7+50.7) and the detection of orbital motion of HD 112313 (central star of PN LoTr5). For BD+33.2642 we sampled 1.5 cycles of the 1105+/-24 day orbital period. For HD 112313 a full period is not yet covered, despite our 1807 days of monitoring. To our knowledge these are the first detections of orbits in PNe that are in a range from several weeks to a few years. In the tables we give the individual radial velocity measurements and list the Julian Date of the measurement, the obtained radial velocity expressed in km/s with respect to the barycentre of the solar system and 1-sigma error on the radial velocity determination.
Hans Van Winckel, Hans.VanWinckel(at)ster.kuleuven.be

                


                

                    

                


                

                    

                


                

                    
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