AAS Meeting #193 - Austin, Texas, January 1999
Session 41. Pulsars
Display, Thursday, January 7, 1999, 9:20am-6:30pm, Exhibits Hall 1

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[41.04] EGRET Observations of Two Young, Energetic Radio Pulsars

V. M. Kaspi, J. R. Lackey (MIT), J. Mattox (Boston University), R. N. Manchester (ATNF), M. Bailes (Swinburne University), R. Pace (ATNF)

We present a summary of results of Compton Gamma-Ray Observatory EGRET observations of the unidentified high-energy gamma-ray sources 2EG J1049-5847 and 2EG J1103-6106. These sources are spatially coincident with the young, energetic radio pulsars PSRs B1046-58 and J1105-6107, respectively. We find evidence for an association between PSR B1046-58 and 2EG J1049-5847. The folded gamma-ray light curve for energies above 400 MeV shows a double-peaked structure whose H statistic implies probability of 0.00012 of being due to chance. Archival ASCA X-ray data, presented by Pivovaroff et al. in a companion presentation, reveal only one source within the gamma-ray 95 circle. This X-ray source is coincident with the pulsar position, lending additional support to the identification of PSR B1046-58 with the gamma-ray source. We find no evidence for gamma-ray pulsations from PSR J1105-6107.


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