IGR J17303-0601 is a new intermediate polar

Details IGR J17303-0601 is a new intermediate polar IGR J17303-0601 is a new intermediate polar

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005atel..463....1g&link_type=abstract

The Astronomer's Telegram, #463

Astronomy and Astrophysics

Astronomy

3

Optical, X-Ray, Binaries, Cataclysmic Variables

Scientific paper

We have identified IGR J17303-0601 (1RXS J173021.5-055933) as an intermediate polar (IP). The optical counterpart is USNOA2.0 0825_10606993 (RA=17h30m21.9s Dec=-05d59m31s). Using optical photometry obtained in 2003 at the JKT and at the OGS we determine the white dwarf spin period to be 120s, which is the second-shortest spin period discovered so far (after AE Aqr, Pspin=33s). The spin folded light curve has a double-pulse structure, suggesting that both accreting poles / accretion curtains contribute to the optical light.

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