@article{10272/22234, year = {2023}, month = {2}, url = {https://hdl.handle.net/10272/22234}, abstract = {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.}, organization = {Funding for open access publishing: Universidad de Jaén/ CBUA. This work was mainly supported by grant PID2019-105510GBC32/ AEI/10.13039/501100011033 from State Agency for Research of the Spanish Ministry of Science and Innovation entitled High energy sources with outflows at different scales: observation of galactic sources. We also acknowledge support by Consejería de Economía, Innovación, Ciencia y Empleo of Junta de Andalucía as research group FQM-322, as well as FEDER funds. JMP acknowledges financial support from the State Agency for Research of the Spanish Ministry of Science and Innovation under grant PID2019-105510GB-C31 and through the Unit of Excellence María de Maeztu 2020-2023 award to the Institute of Cosmos Sciences (CEX2019-000918-M), and by the Catalan DEC grant 2017 SGR 643.}, publisher = {Springer}, title = {Hints of the photometric period in radial velocity data of the X-ray binary HD 3191 with the Joan Oró telescope}, doi = {10.1007/s10509-023-04164-8}, author = {Martí, Josep and Luque Escamilla, Pedro L. and Sánchez Ayaso, Estrella and Paredes, Josep M. and Vázquez Ramos, Alicia}, }