Evolutionary Status of Selected Post-AGB Stars Based on Gaia DR3

dc.contributor.author	Parthasarathy, M
dc.contributor.author	Kounkel, M
dc.contributor.author	Stassun, Keivan G
dc.date.accessioned	2013-12-23T11:59:22Z
dc.date.available	2013-12-23T11:59:22Z
dc.date.issued	2022-10
dc.identifier.citation	Research Notes of the AAS, Vol. 6, No. 10, 210	en
dc.identifier.issn	2515-5172
dc.identifier.uri	http://hdl.handle.net/2248/6489
dc.description	Open Access	en
dc.description.abstract	The evolutionary status of 24 post-AGB stars is presented based on Gaia DR3 data. All 24 stars have parallaxes accurate to better than 3σ and have RUWE values <1.4. Based on the Gaia DR3 distances the absolute luminosities are derived. For 14 of the stars, the luminosities confirm their post-AGB evolutionary stage. However, V1027 Cyg, which was previously classified as a post-AGB star, is found to have a higher luminosity than would be expected if it was truly a post-AGB star; thus it may be an evolved, massive, pulsating semi-regular variable star of type G7Ia. For 9 of the stars, the luminosities are lower than 1000 L⊙, indicating that some are post-HB stars and some are post-RGB stars.
dc.language.iso	en	en
dc.publisher	American Astronomical Society	en
dc.relation.uri	https://iopscience.iop.org/article/10.3847/2515-5172/ac99dd	en
dc.rights	© American Astronomical Society	en
dc.title	Evolutionary Status of Selected Post-AGB Stars Based on Gaia DR3	en
dc.type	Article	en