A Bursting Radio Transient in the Direction of the Galactic Center

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dc.creatorRay, Paul S.
dc.creatorHyman, Scott D.
dc.creatorLazio, T. Joseph
dc.creatorKassim, Namir E.
dc.creatorRoy, Subhashis
dc.creatorKaplan, David L.
dc.creatorChakrabarty, Deepto
dc.date2008-08-13
dc.date.accessioned2026-07-07T09:56:37Z
dc.date.available2026-07-07T09:56:37Z
dc.descriptionThe radio sky is poorly sampled for rapidly varying transients because of the narrow field-of-view of most imaging radio telescopes at cm and shorter wavelengths. The emergence of sensitive long wavelength observations with intrinsically larger fields-of-view are changing this situation, as partly illustrated by our ongoing meter-wavelength monitoring observations and archival studies of the Galactic Center. In this search, we discovered a transient, bursting, radio source in the direction of the Galactic Center, GCRT J1745-3009, with extremely unusual properties. Its flux and rapid variability imply a brightness temperature >10^12 K if it is at a distance >70 pc, implying that it is a coherent emitter. I will discuss the discovery of the source and the subsequent re-detections, as well as searches for counterparts at other wavelengths, and several proposed models.
dc.description11 pages, 2 figures, to appear in proceedings of "Bursts, Pulses and Flickering: Wide-field monitoring of the dynamic radio sky" held in Kerastari, Tripolis, Greece in June 2007, published by Proceedings of Science, PoS(Dynamic2007)008
dc.identifierhttps://arxiv.org/abs/0808.1899
dc.identifierhttp://arxiv.org/abs/0808.1899
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/167040
dc.subjectAstrophysics
dc.titleA Bursting Radio Transient in the Direction of the Galactic Center
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