Chandra smells a RRAT |
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| Authors: | Bryan M. Gaensler Maura McLaughlin Stephen Reynolds Kazik Borkowski Nanda Rea Andrea Possenti Gianluca Israel Marta Burgay Fernando Camilo Shami Chatterjee Michael Kramer Andrew Lyne Ingrid Stairs |
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| Affiliation: | (1) Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, USA;(2) Present address: The University of Sydney, Sydney, NSW, Australia;(3) University of West Virginia, Morgantown, WV, USA;(4) North Carolina State University, Raleigh, NC, USA;(5) SRON Netherlands Institute for Space Research, Utrecht, Netherlands;(6) Osservatorio Astronomico di Cagliari, Cagliari, Italy;(7) Osservatorio Astronomico di Roma, Roma, Italy;(8) Columbia University, New York, NY, USA;(9) Jodrell Bank Observatory, Macclesfield, UK;(10) University of British Columbia, Vancouver, BC, Canada |
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| Abstract: | “Rotating RAdio Transients” (RRATs) are a newly discovered astronomical phenomenon, characterised by occasional brief radio bursts, with average intervals between bursts ranging from minutes to hours. The burst spacings allow identification of periodicities, which fall in the range 0.4 to 7 seconds. The RRATs thus seem to be rotating neutron stars, albeit with properties very different from the rest of the population. We here present the serendipitous detection with the Chandra X-ray Observatory of a bright point-like X-ray source coincident with one of the RRATs. We discuss the temporal and spectral properties of this X-ray emission, consider counterparts in other wavebands, and interpret these results in the context of possible explanations for the RRAT population. B.M.G. acknowledges the support of NASA through LTSA grant NAG5-13023 and of an Alfred P. Sloan Fellowship. |
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| Keywords: | Pulsars: individual (J1819-1458) Stars: flare, neutron X-rays: stars |
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