The radio morphological variability of LS 5039 and its birth place

Details The radio morphological variability of LS 5039 and its birth place The radio morphological variability of LS 5039 and its birth place

Nov 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011hsa6.conf..493m&link_type=abstract

Highlights of Spanish Astrophysics VI, Proceedings of the IX Scientific Meeting of the Spanish Astronomical Society (SEA), held

Astronomy and Astrophysics

Astrophysics

Scientific paper

LS 5039 is one of the few X-ray binaries detected at VHE, and potentially contains a young non-accreting pulsar. We present VLBA observations of LS 5039 covering an orbital cycle, which show periodic morphological changes, and astrometric variability of the peak of the emission at mas scales. On the other hand, both LS 5039 and the ms pulsar PSR J1826-1446 are close to the supernova remnant SNR G0 16.8-01.1. We present an astrometric project to measure the proper motion of PSR J1826-1446 and LS 5039, and we discuss the possible association of each of these sources with the SNR. The birth place of the compact object in LS 5039 has direct implications on the age of this gamma-ray binary, on the nature of the compact object, and hence on the mechanism that produces the VHE emission.

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