UV spectroscopy confirms SU Lyn to be a symbiotic star

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dc.contributor.author Kumar, Vipin
dc.contributor.author Srivastava, Mudit K
dc.contributor.author Banerjee, Dipankar P. K.
dc.contributor.author Joshi, Vishal
dc.coverage.spatial United Kingdom
dc.date.accessioned 2020-12-17T09:06:01Z
dc.date.available 2020-12-17T09:06:01Z
dc.date.issued 2021-01
dc.identifier.citation Kumar, Vipin; Srivastava, Mudit K; Banerjee, Dipankar P. K. and Joshi, Vishal, "UV spectroscopy confirms SU Lyn to be a symbiotic star", Monthly Notices of the Royal Astronomical Society: Letters, DOI: 10.1093/mnrasl/slaa159, vol. 500, no. 1, pp. L12-L16, Jan. 2021. en_US
dc.identifier.issn 1745-3933
dc.identifier.uri https://doi.org/10.1093/mnrasl/slaa159
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/6132
dc.description.abstract SU Lyn, a star that ostensibly appears to be an unremarkable late M type giant, has recently been proposed to be a symbiotic star largely based on its hard X-ray properties. The star does not display, in low-resolution optical spectra, the high excitation lines typically seen in the spectra of symbiotic stars. In this work, ultraviolet (UV), optical, and near-infrared observations are presented, aimed at exploring and strengthening the proposed symbiotic classification for this star. Our far-UV 1300�1800 � spectrum of SU Lyn, obtained with the ASTROSAT mission�s UVIT payload, shows emission lines of Si?IV, C?IV, O?III, and N?III in a spectrum typical of symbiotic stars. The UV spectrum robustly confirms SU Lyn�s symbiotic nature. The detection of high excitation lines in a high-resolution optical spectrum further consolidates its symbiotic nature. As is being recognized, the potential existence of other similar symbiotic systems could significantly impact the census of symbiotic stars in the Galaxy.
dc.description.statementofresponsibility by Vipin Kumar, Mudit K Srivastava, Dipankar P K Banerjee and Vishal Joshi
dc.format.extent vol. 500, no. 1, pp. L12-L16
dc.language.iso en_US en_US
dc.publisher Oxford University Press en_US
dc.subject Methods: observational en_US
dc.subject Techniques: spectroscopic en_US
dc.subject White dwarfs en_US
dc.subject Ultraviolet: general en_US
dc.subject Ultraviolet: stars en_US
dc.title UV spectroscopy confirms SU Lyn to be a symbiotic star en_US
dc.type Article en_US
dc.relation.journal Monthly Notices of the Royal Astronomical Society: Letters

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