Hints for a fast precessing relativistic radio jet in LS I+61·303


Autoria(s): Massi, M.; Ribó Gomis, Marc; Paredes i Poy, Josep Maria; Garrington, S. T.; Peracaula i Bosch, Marta; Martí Ribas, Josep
Contribuinte(s)

Universitat de Barcelona

Data(s)

01/08/2013

Resumo

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 struct ure 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 (β=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.

Identificador

http://hdl.handle.net/2445/45340

Idioma(s)

eng

Publicador

Springer Verlag

Direitos

(c) Springer Verlag, 2004

info:eu-repo/semantics/openAccess

Palavras-Chave #Estels #Estels binaris de raigs X #Radioastronomia #Raigs gamma #Astronomia de raigs gamma #Astrofísica #Stars #X-ray binaries #Radio astronomy #Gamma rays #Gamma ray astronomy #Astrophysics
Tipo

info:eu-repo/semantics/article

info:eu-repo/semantics/acceptedVersion