Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...368..569v&link_type=abstract
Astronomy and Astrophysics, v.368, p.569-571 (2001)
Astronomy and Astrophysics
Astrophysics
2
Pulsars: Individual: 1E 2259+58.6, 4U 0142+61, Stars: Neutron, X-Rays: Stars
Scientific paper
Optical spectra show that two proposed counterparts for X-ray sources detected near 1E 2259+58.6 are late G stars, and a proposed counterpart for a source near 4U 0142+61 is a dMe star. The X-ray luminosities are as expected for such stars. We thus confirm the optical identification of the three X-ray objects, and thereby the correctness of the accurate positions for 1E 2259+58.6 and 4U 0142+61 based on them. Based on observations made with the William Herschel Telescope operated on the island of La Palma by the Isaac Newton Group in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias.
van den Berg Maureen
Verbunt Frank
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