This is a rather bright X-ray source (3 c s-1 with ROSAT PSPC), firstly discovered in the EINSTEIN slew survey and rediscovered serendipitously in a ROSAT PSPC observation of the R CrA molecular cloud. The spectral fit provides a black body temperature of ~60 eV and a column density of 1.4 1020 cm -2, giving in turn a luminosity of 5 1031 erg s-1 at a distance of 100 pc (the R CrA cloud lies at about 120 pc).
(Adapted from Treves et al. 1996, Lipari proceedings).
Click on the first author to retreive the paper.
Walter F.W., Wolk S.J. & Neuhauser R., Discovery of a nearby isolated neutron star, 1996, Nat 379 233
Pavlov G.G., Zavlin V.E., Trumper J. & Neuhauser R., Multiwavelength observations of isolated neutron stars as a tool to probe the properties of their surfaces, 1996, ApJ 472 L33
Neuhauser R., Thomas H.-C., Danner R., Peschke S. & Walter F.W., On the X-ray position and deep optical imaging of the neutron star candidate RXJ1856.5-3754, 1997, A&A 318 L43
Campana S., Mereghetti S. & Sidoli L., Is RX J1856.5-3754 an old neutron star?, 1997, A&A 320 783
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Edited by SC 12/12/1996 (here is a disclaimer).