Evolutionary Status of Selected Post-AGB Single and Binary Stars in Gaia DR3

Parthasarathy, M; Kounkel, Marina; Stassun, Keivan G

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dc.contributor.author	Parthasarathy, M
dc.contributor.author	Kounkel, Marina
dc.contributor.author	Stassun, Keivan G
dc.date.accessioned	2022-11-18T06:57:06Z
dc.date.available	2022-11-18T06:57:06Z
dc.date.issued	2022-08
dc.identifier.citation	Research Notes of the AAS, Vol. 6, No. 8, 171	en_US
dc.identifier.issn	2515-5172
dc.identifier.uri	http://hdl.handle.net/2248/8086
dc.description	Open Access	en_US
dc.description	Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
dc.description.abstract	Gaia data is helping to further understand the evolutionary status of post-AGB and related stars. In this paper we present an analysis of Gaia DR3 data of post-AGB stars and post-AGB binaries with accurate parallaxes. Gaia DR3 data of 44 post-AGB candidates are analyzed, including 16 post-AGB binary candidates. Of these, 19 stars have RUWE values >1.4. For several stars, the calculated absolute luminosities confirm that they are indeed in post-AGB evolutionary stage. We find that 12 stars have relatively lower luminosities; some of them may be post-RGB stars and some may be post-HB stars. We find that IRAS 01427+4633 (BD+46 442), IRAS 16230–3410, and IRAS 19199+3950 (HP Lyr) are evolved high velocity stars.	en_US
dc.language.iso	en	en_US
dc.publisher	IOP Publishing	en_US
dc.relation.uri	https://doi.org/10.3847/2515-5172/ac8c46
dc.rights	© The Author(s) 2022.
dc.title	Evolutionary Status of Selected Post-AGB Single and Binary Stars in Gaia DR3	en_US
dc.type	Article	en_US