X-Ray Pulsar XTE J1858+034: Discovery of the Cyclotron Line and the Revised Optical Identification
نویسندگان
چکیده
Abstract We present the results of a detailed investigation poorly studied X-ray pulsar (XRP) XTE J1858+034 based on data obtained with NuSTAR observatory during outburst source in 2019. The spectral analysis resulted discovery cyclotron absorption feature spectrum at ∼48 keV both pulse phase-averaged and resolved spectra. Accurate localization using Chandra observatories allowed us to accurately determine position identify optical companion pulsar. counterpart properties suggested that system is likely symbiotic binary hosting an XRP late-type star K-M classes rather than Be as previously suggested.
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2021
ISSN: ['2041-8213', '2041-8205']
DOI: https://doi.org/10.3847/1538-4357/abddbd