Identification of the Periodic Hard X-Ray Transient GRO J1849-03 with the X-Ray Pulsar GS 1843-02 = X1845-024 - a New Be/X-Ray Binary

Abstract

We identify the periodic transient hard X-ray source GRO J1849-03 with the transient x-ray pulsar GS 1843-02 = X1845-024 based on the detection of x-ray outbursts from X1845-024 coincident with hard x-ray outbursts of GRO J1849--03. Based on its spin period of 94.8 s and its orbital period of 241 days, we classify the system as a Be/X-ray binary.

arXiv comment5 pages, 3 figures, accepted for publication in the Astrophysical Journal Letters

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• Hard Spectra of X-Ray Pulsars from INTEGRAL Data
• The Outbursts and Orbit of the Accreting Pulsar GS 1843-02 = 2S 1845-024
• The Burst and Transient Source Experiment (BATSE) Earth Occultation Catalog of Low-Energy Gamma-Ray Sources
• RXTE Observations of the X-ray Pulsar XTE J1855-026 - a Possible New Supergiant System
• INTEGRAL, XMM-Newton and ESO/NTT identification of AX J1749.1-2733: an obscured and probably distant Be/X-ray binary