2002/10/01 by J. M. Paredes, M. Ribo, M. Ribó +4 · 14 citations
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #Astrophysics and Star Formation Studies #astro-ph
paper · pdf · doi:10.1051/0004-6361:20021256
published as Astron.Astrophys. 393 (2002) L99-L102 · 5 pages, 2 figures, LaTeX, uses aa.cls. Published in A&A (see http://www.edpsciences.org/articles/aa/abs/2002/39/aaeh052/aaeh052.html)
openalex publication_date 2002/10/01 · arxiv created 2002/10/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
We present here new observations conducted with the EVN and MERLIN of the persistent microquasar LS 5039 discovered by Paredes et al. ([CITE]) with the VLBA. The new observations confirm the presence of an asymmetric two-sided jet reaching up to ~1000 AU on the longest jet arm. The results suggest a bending of the jets with increasing distance from the core and/or precession. The origin and location of the high-energy gamma-ray emission associated with the system is discussed and an estimate of the magnetic field at the base of the jet given. Our results suggest a well collimated radio jet. We also comment on new observing strategies to be used with satellites and forthcoming detectors, since this persistent source appears to be a rather good laboratory to explore the accretion/ejection processes taking place near compact objects.