English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We report on 5.4 yr of phase-coherent timing, using the Rossi X-ray TimingExplorer, of the X-ray pulsar 1RXS 1708-4009, a member of the class known as``anomalous X-ray pulsars.'' This object exhibited a rotational glitch in 1999.Here we report a second much larger rotational glitch which occured ~1.5 yrafter the first. We show that the recoveries from the two glitches aredifferent, with the first showing only a possible slow, approximately linearrecovery, while the second showed a nearly complete recovery on a time scale of\~50 days. The approximately exponential recovery time scale of the secondglitch is similar to that seen recently in 1E 2259+586 at the time of a majoroutburst. This suggests 1RXS 1708-4009 undergoes similar bursting behavior,although with our sparse observations we have detected no other evidence forbursts from this source.Comment: 13 pages, 2 figures. Revised manuscript and Fig 1 following  refereeing. Accepted for publication in ApJL Aug 1

A Second Glitch from the "Anomalous" X-Ray Pulsar 1RXS J170849.0-4000910