1RXS is an acronym which is the prefix used for the First ROSAT X-ray Survey (1st ROSAT X-ray Survey). This is a catalogue of astronomical objects that were visible in the X-ray spectrum from the ROSAT satellite, in the field of X-ray astronomy.

Examinations of 1RXS has shown that many sources can be identified, such as old neutron stars, while other entries are "intriguing", according to one researcher.[1]

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  1. ^ David L. Kaplan (2004). The Diversity of Neutron Stars: Nearby Thermally Emitting Neutron Stars and the Compact Central Objects in Supernova Remnants. Universal-Publishers. p. 237. ISBN 978-1-58112-234-3.

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