2026-04-13T15:12:51Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/35652024-05-22T09:47:53Zcom_2072_452955com_2072_2054col_2072_452957

Hints for a fast precessing relativistic radio jet in LS I + 61° 303 Massi, Maria Ribó i Panosa, Marc Paredes i Poy, Josep Maria Garrington, Simon T. Peracaula i Bosch, Marta Martí Ribas, Josep Estels Estels binaris de raigs X Stars X-rays double stars Here we discuss two consecutive MERLIN observations of the X-ray binary LS I +61° 303 . The first observation shows a double-sided jet extending up to about 200 AU on both sides of a central source. The jet shows a bent S-shaped structure similar to the one displayed by the well-known precessing jet of SS 433 . The precession suggested in the first MERLIN image becomes evident in the second one, showing a one-sided bent jet significantly rotated with respect to the jet of the day before. We conclude that the derived precession of the relativistic (beta=0.6) jet explains puzzling previous VLBI results. Moreover, the fact that the precession is fast could be the explanation of the never understood short term (days) variability of the associated gamma-ray source 2CG 135+01 / 3EG J0241+6103 2004 info:eu-repo/semantics/article Massi, M., Ribó, M., Paredes, J.M., Garrington, S.T., Peracaula, M. i Martí, J. (2004). Hints for a fast precessing relativistic radio jet in LS I + 61° 303. Astronomy & Astrophysics, 414 (1), L1 - L4. Recuperat 15 setembre de 2011, a http://dx.doi.org/10.1051/0004-6361:20031760 http://hdl.handle.net/10256/3565 http://hdl.handle.net/10256/3565 eng info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361:20031760 info:eu-repo/semantics/altIdentifier/issn/0004-6361 info:eu-repo/semantics/altIdentifier/eissn/1432-0746 Tots els drets reservats info:eu-repo/semantics/openAccess application/pdf EDP Sciences © Astronomy & Astrophysics, 2004, vol.414, núm.1, p.L1 - L4 Articles publicats (D-ATC)