A torque reversal to spin-up in 4U 1626-67

Details A torque reversal to spin-up in 4U 1626-67 A torque reversal to spin-up in 4U 1626-67

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atel.2095....1j&link_type=abstract

The Astronomer's Telegram, #2095

Astronomy and Astrophysics

Astronomy

2

X-Ray, Binaries, Neutron Stars, Pulsars

Scientific paper

We report the detection of a recent torque reversal to spin-up in 4U 1626-67. This is an accretion powered X-ray pulsar and shows slow gradual intensity and pulse period variation on a few years of timescale. Recently, a significant increase in the X-ray flux was observed in the long term RXTE-ASM and Swift-BAT light curve (Krimm et al. 2008, ATel #1426, 1, Jain et al. 2009, astro-ph 0906.4169) around MJD 54500.

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