Volume 378, Number 1, October IV 2001
|Page(s)||L5 - L9|
|Published online||15 October 2001|
1RXS J214303.7+065419/RBS 1774: A new Isolated Neutron Star candidate*
Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, 35122 Padova, Italy
2 Università di Padova, Dipartimento di Fisica, Via Marzolo 8, 35131 Padova, Italy
3 Osservatorio Astronomico di Brera, Via Bianchi 46, 23807 Merate, Italy
4 Università dell'Insubria, Dipartimento di Scienze, Via Valleggio 11, 22100 Como, Italy
Corresponding author: L. Zampieri email@example.com
Accepted: 14 August 2001
We report on the identification of a new possible Isolated Neutron Star candidate in archival ROSAT observations. The source 1RXS J214303.7+065419, listed in the ROSAT Bright Source Catalogue as RBS 1774, is very soft, exhibits a thermal spectrum well fitted by a blackbody at eV and has a low column density, . Catalogue searches revealed no known sources in other energy bands close to the X-ray position of RBS 1774. Follow-up optical observations with NTT showed no peculiar object within the X-ray error circle. The absence of any plausible optical counterpart down to results in an X-ray to optical flux ratio in excess of 1000.
Key words: stars: individual: 1RXS J214303.7+065419/RBS 1774 / stars: neutron / X-rays: stars
© ESO, 2001
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