Radio and X-ray Observations of the Possible New Gamma-ray binary HESS J0632+057

J. L. Skilton , J. A. Hinton , J. Brucker , M. Pandey-Pommier , C. C. Cheung , F. A. Aharonian , G. Dubus (1) , A. Fiasson (2, 3) , S. Funk , Y. Gallant (3) , A. Marcowith (3) , O. Reimer

1 LAOG - Laboratoire d'Astrophysique de Grenoble
2 LAPP - Laboratoire d'Annecy de Physique des Particules
3 LPTA - Laboratoire de Physique Théorique et Astroparticules

HESS J0632+057 is one of the only point-like, unidentified TeV sources in our galaxy. The association of this source with the massive B0pe star MWC 148 has led to the suggestion that HESS J0632+057 could be a new gamma-ray binary system. Our recent X-ray observations with XMM-Newton have revealed a non-thermal, point-like source coincident with this star, further strengthening the identification of HESS J0632+057 as a high mass X-ray binary system. Here we present new Very Large Array (VLA) and Giant Metre-wave Radio Telescope (GMRT) observations towards HESS J0632+057 which reveal point-like variable emission at the location of MWC 148.

Domaines: Physique des Hautes Energies - Expérience [hep-ex]; Phénomènes cosmiques de haute energie [astro-ph.HE]; Phénomènes cosmiques de haute energie [astro-ph.HE]

J. L. Skilton, J. A. Hinton, J. Brucker, M. Pandey-Pommier, C. C. Cheung, et al.. Radio and X-ray Observations of the Possible New Gamma-ray binary HESS J0632+057. High Energy Phenomena in Massive Stars Conference, Feb 2009, Jaén, Spain. pp.128-134. ⟨in2p3-00910837⟩