Identifying the population of T-Tauri stars in Taurus: UV-optical synergy

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dc.contributor.authorNayak, Prasanta K.
dc.contributor.authorNarang, Mayank
dc.contributor.authorPuravankara, Manoj
dc.contributor.authorTyagi, Himanshu
dc.contributor.authorBanerjee, Bihan
dc.contributor.authorSharma, Saurabh
dc.contributor.authorPandey, Rakesh
dc.contributor.authorSurya, Arun
dc.contributor.authorMathew, Blesson
dc.contributor.authorArun, R.
dc.contributor.authorUjjwal, K.
dc.contributor.authorKartha, Sreeja S.
dc.date.accessioned2025-01-20T17:35:07Z
dc.date.available2025-01-20T17:35:07Z
dc.date.issued2023
dc.description.abstractWith the third data release of the Gaia mission, Gaia DR3 with its precise photometry and astrometry, it is now possible to study the behavior of stars at a scale never seen before. In this paper, we developed new criteria to identify T-Tauri stars (TTS) candidates using UV and optical color-magnitude diagrams (CMDs) by combining the GALEX and Gaia surveys. We found 19 TTS candidates and five of them are newly identified TTS in the Taurus molecular cloud (TMC), not cataloged before as TMC members. For some of the TTS candidates, we also obtained optical spectra from several Indian telescopes. We also present the analysis of distance and proper motion of young stars in the Taurus using data from Gaia DR3. We found that the stars in Taurus show a bimodal distribution with distance, having peaks at 130.17(-1.24)(1.31) pc and 156.25(-5.00)(1.86) pc. The reason for this bimodality, we think, is due to the fact that different clouds in the TMC region are at different distances. We further showed that the two populations have similar ages and proper motion distribution. Using the Gaia DR3 CMD, we showed that the age of Taurus is consistent with 1 Myr.
dc.description.funderCentro de Astrofisica y Tecnologias Afines (CATA) fellowship via grant Agencia Nacional de Investigacion y Desarrollo (ANID), BASAL
dc.fuente.origenWOS
dc.identifier.doi10.1007/s12036-023-09972-6
dc.identifier.eissn0973-7758
dc.identifier.issn0250-6335
dc.identifier.urihttps://doi.org/10.1007/s12036-023-09972-6
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91668
dc.identifier.wosidWOS:001070874000001
dc.issue.numero2
dc.language.isoen
dc.revistaJournal of astrophysics and astronomy
dc.rightsacceso restringido
dc.subjectGaia
dc.subjectstars: pre-main sequence
dc.subjectstars: kinematics and dynamics
dc.subjectstars: Hertzsprung-Russell and C-M diagrams
dc.titleIdentifying the population of T-Tauri stars in Taurus: UV-optical synergy
dc.typeartículo
dc.volumen44
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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