Near-IR detection of the anomalous X-ray pulsar 1E 1048.1-5937 following a glitch

Details Near-IR detection of the anomalous X-ray pulsar 1E 1048.1-5937 following a glitch Near-IR detection of the anomalous X-ray pulsar 1E 1048.1-5937 following a glitch

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007atel.1044....1w&link_type=abstract

The Astronomer's Telegram, #1044

Astronomy and Astrophysics

Astronomy

3

Infra-Red, Neutron Stars, Pulsars

Scientific paper

We observed the field of AXP 1E 1048.1-5937 on 2007 April 04, UT 00:37, at Ks band, using the near-IR imaging camera PANIC on the Magellan/Baade Telescope at Las Campanas Observatory in Chile. The exposure was 15 min and the seeing 0.6 arcsec. We detected the near-IR counterpart discovered by Wang & Chakrabarty (2002, ApJ, 579, L33), and found its Ks =19.9 +/-0.2 mag (1-sigma uncertainty). This Ks magnitude indicates that the AXP right now is comparably as bright as on 2002 April 8, when the counterpart was discovered, but is 1.3--1.5 mag brighter than in 2003 April/June (Durant & van Kerkwijk 2005, ApJ, 627, 376) and roughly 3 mag brighter than in 2006, during which 4 HST/NICMOS observations of the source were performed (Tam et al.

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