English

EVN and MERLIN confirmation of the LS5039 jets

Astrophysics 2007-05-23 v1

Abstract

The microquasar nature of LS5039 was revealed by May 1999 VLBA+VLA observations showing a two-sided jet at milliarcsecond scales. Here we present follow-up interferometric observations carried out with the EVN and MERLIN at 5 GHz in March 2000. The obtained maps with both the EVN and MERLIN show a two-sided jet with a similar position angle to the previous VLBA+VLA map. The total length of the jet arms is ~60 mas in the EVN map and ~300 mas in the MERLIN map. A brightness and length asymmetry of the jets, compatible with the earlier observations, is also present in the maps. Overall, these observations confirm the existence of a two-sided jet structure in LS 5039 and seem to indicate their persistent nature.

Keywords

Cite

@article{arxiv.astro-ph/0207188,
  title  = {EVN and MERLIN confirmation of the LS5039 jets},
  author = {J. M. Paredes and M. Ribo and E. Ros and J. Marti and M. Massi},
  journal= {arXiv preprint arXiv:astro-ph/0207188},
  year   = {2007}
}

Comments

Proceedings of the 6th European VLBI Network Symposium, Ros E., Porcas R.W., Lobanov A.P., Zensus J.A. (Eds.), MPIfR, Bonn, Germany (2002), pp. 277-278. 2 pages, 1 figure, needs evn2002.cls