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Título: | Hints of the photometric period in radial velocity data of the X-ray binary HD 3191 with the Joan Oró telescope |
Autor: | Martí, Josep; Luque-Escamilla, Pedro L.; Sánchez-Ayaso, Estrella; Paredes, Josep M.; Vázquez-Ramos, Alicia | Fecha de publicación: | 2023 | Editor: | Springer Nature | Citación: | Astrophysics and Space Science 368: 7 (2023) | Resumen: | We focus our attention on the newly proposed X-ray binary system HD 3191 whose nature still lacks dynamical confirmation and accurate orbital parameters. The positional agreement of this object with a flaring gamma-ray source was the original motivation of this work, although the present chances of association are reduced. A long-term spectroscopic monitoring of HD3191 was conducted using the 1-m class, robotic, Joan Oró telescope at the Observatori Astronòmic del Montsec facilities, located in the pre-Pyrenees mountains 140 km away from Barcelona. The Doppler measurements suggest an agreement with the previously reported 16.09 d photometric period, as expected. We also present a very preliminary radial velocity curve based on a circular orbit solution that hints to a low velocity amplitude. Nevertheless, the instrumental limitations of our data render necessary to carry out improved spectroscopic observations to better discriminate among the nature of the compact companion. | Versión del editor: | https://doi.org/10.1007/s10509-023-04164-8 | URI: | http://hdl.handle.net/10261/336726 | DOI: | 10.1007/s10509-023-04164-8 | E-ISSN: | 1572-946X |
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hintstelescop.pdf | 933,37 kB | Adobe PDF | Visualizar/Abrir |
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