A short gamma-ray burst apparently associated with an elliptical galaxy at redshift z=0.225

Article Abstract:

The detection of the X-ray afterglow from and the localization of the short burst gamma-ray bursts (GRB) 050509B are reported. Its position at the sky is near a luminous, non-star-forming elliptical galaxy at a redshift of 0.225, which is a location that one would expect if the origin of this GRB were through the merger of neutron-star and black-hole barriers.

Author: Gehrels, N., Mushotzky, R.F., Sakamoto, T., Patel, S., Kobayashi, S., Osborne, J.P., Takahashi, T., Kouveliotou, C., Markwardt, C.B., Hjorth, J., Sarazin, C.L., Hullinger, D., Krimm, H.A., Tueller, J., Fenimore, E.E., Barthelmy, S.D., Cummings, J.R., Hurley, K.C., Goad, M., Rol, E., Cominsky, L.R., Cusumano, G., Pasquale, M. de, Klose, S., Nakazawa, K., Norris, J.P., Roming, P.W.A., Tagliaferri, G., Cannizzo, J., Holland, S.T., Plamer, D.M., Willingale, R., Chincarini, G., Nousek, J.A., Romano, P., O'Brien, P.T., Burrows, D.N., Hurkett, C.P., Page, M., Angelini, L., Chester, M.M., Giommi, P., Moretti, A., Poole, T., Tashiro, M., B. Zhang, Blustin, A., Kennea, J.A., Levan, A., Meszaros, P., Beardmore, A., Campana, S., Gronwall, C., Hinshaw, D., McGowan, K., Page, K., Perri, M., Wijers, R.A.M.J., Barbier, L., Mason, K.O., Boyd, P.T., Breeveld, A., Grupe, D., Hill, J.E., Mangano, V., Marshall, F.E., Parsons, A.M., Wells, A.A., White, N.E.
Discovery and exploration, Gamma ray astronomy, Red shift, Redshift, Elliptical galaxies

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An ultra-relativistic outflow from a neutron star accreting gas from a companion

Article Abstract:

Collimated relativistic outflows or jets are associated with supermassive black holes in distant active galactic nuclei, accreting stellar-mass black holes and neutron stars in binary systems. The discovery of an ultra-relativistic outflow from a neutron star accreting gas within a binary stellar system is reported.

Author: Fender, Rob, Kinwah Wu, Johnston, Helen, Tasso Tzioumis, Jonker, Peter, Spencer, Ralph, van der Kils, Michiel
Black holes (Astronomy), Neutron stars

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Subjects list: Research, United States
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