0000000000757467

AUTHOR

Wenxian Lu

showing 2 related works from this author

ERRATUM: “STUDIES OF VARIABILITY IN PROTO-PLANETARY NEBULAE. II. LIGHT AND VELOCITY CURVE ANALYSES OF IRAS 22272+5435 AND 22223+4327” (2013, ApJ, 766…

2013

PhysicsSpace and Planetary ScienceAstronomyAstronomy and AstrophysicsAstrophysicsPlanetary nebulaGalaxy rotation curveThe Astrophysical Journal
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STUDIES OF VARIABILITY IN PROTO-PLANETARY NEBULAE. II. LIGHT AND VELOCITY CURVE ANALYSES OF IRAS 22272+5435 AND 22223+4327

2013

We have carried out a detailed observational study of the light, color, and velocity variations of two bright, carbon-rich proto-planetary nebulae, IRAS 22223+4327 and 22272+5435. The light curves are based upon our observations from 1994 to 2011, together with published data by Arkhipova and collaborators. They each display four significant periods, with primary periods for IRAS 22223+4327 and 22272+5435 being 90 and 132 days, respectively. For each of them, the ratio of secondary to primary period is 0.95, a value much different from that found in Cepheids, but which may be characteristic of post-asymptotic giant branch (AGB) stars. Fewer significant periods are found in the smaller radia…

oscillations [stars]Cepheid variableFOS: Physical sciencesAstrophysics01 natural sciences0103 physical sciencesAstrophysics::Solar and Stellar Astrophysicsgeneral [planetary nebulae]010303 astronomy & astrophysicsSolar and Stellar Astrophysics (astro-ph.SR)Astrophysics::Galaxy AstrophysicsGalaxy rotation curvePhysicsNebula010308 nuclear & particles physicsAstronomy and AstrophysicsLight curveAGB and post-AGB [stars]Planetary nebulaRadial velocityStarsAmplitudeAstrophysics - Solar and Stellar Astrophysicsvariables: general [stars]Space and Planetary Scienceindividual (IRAS 22223+4327 IRAS 22272+5435) [stars]Astrophysics::Earth and Planetary AstrophysicsThe Astrophysical Journal
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