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A multiwavelength view of a classical T Tauri star CV Cha

Show simple item record Pandey, Jeewan Chandra Karmakar, Subhajeet Joshi, Arti Sharma, Saurabh Pandey, Shashi Bhushan Pandey, Anil Kumar 2023-03-29T10:45:02Z 2023-03-29T10:45:02Z 2019-01
dc.identifier.uri http://localhost:8080/xmlui/handle/123456789/1361
dc.description.abstract Using long-term optical, ultraviolet (UV) and X-ray data, we present a study of a classical T Tauri star CV Cha. The V -band light curve obtained from the All Sky Automated Survey (ASAS) shows short as well as long-term variability. The short-term variability could be due to rotational modulation of CV Cha. We derive the rotational period of 3.714 ± 0.001 d for CV Cha. UV light curves obtained from Swift also show the variations. X-ray light curves from XMM-Newton and Swift do not show any significant short as well as long-term variability. However, the light curve from Chandra appears to be variable, which could be due to the emergence of flaring activities. X-ray spectra from all observations are explained well by the single temperature plasma of 0.95 keV with X-ray luminosity of 1030.4 erg s−1 in the 0.5–7.5 keV energy band. It appears that variability in optical and UV bands could be due to the presence of both hot and cool spots on the surface, while X-ray emission is dominated by magnetic processes. en_US
dc.language.iso en en_US
dc.publisher Research in Astronomy and Astrophysics en_US
dc.relation.ispartofseries 1464;raa19-7
dc.subject stars: activity en_US
dc.subject stars: individual (CV Cha) en_US
dc.subject stars: pre-main sequence en_US
dc.subject stars: variable: T Tauri en_US
dc.subject X-ray: stars en_US
dc.title A multiwavelength view of a classical T Tauri star CV Cha en_US
dc.type Article en_US

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