{ "id": "1702.06947", "version": "v1", "published": "2017-02-22T07:31:02.000Z", "updated": "2017-02-22T07:31:02.000Z", "title": "Mass of the compact object in the Be/gamma-ray binaries LSI+61303 and MWC 148", "authors": [ "R. K. Zamanov", "J. Marti", "M. T. Garcia-Hernandez" ], "comment": "4 pages, submitted", "categories": [ "astro-ph.HE", "astro-ph.SR" ], "abstract": "We estimate the mass of the compact object in the gamma-ray binaries LSI+61303 and MWC 148, using the latest data for the inclination, orbital motion and assuming that the orbital plane coincides with the equatorial plane of the Be star. For LSI+61303 we find the mass of the compact object to be most likely in the range 1.3 M_sun < M_2 < 2.0 M_sun, which means that it is probably a neutron star. For MWC 148, we find the mass of the compact object in a higher range, 2.1 M_sum < M_2 < 7.3 M_sun, which increases the chances for this system to host a black hole companion.", "revisions": [ { "version": "v1", "updated": "2017-02-22T07:31:02.000Z" } ], "analyses": { "keywords": [ "compact object", "be/gamma-ray binaries", "black hole companion", "orbital plane coincides", "latest data" ], "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }