{
  "bibcode": "2002GCN..1438....1K",
  "body": "V. M. Kaspi (McGill University/Massachusetts Institute of\nTechnology), J. Jensen (Gemini), F. Rigaut (Gemini), A. Hatakeyama\n(Gemini), P. M. Woods (USRA/NSSTC) report Gemini North 8-m near-IR\nobservations of the anomalous X-ray pulsar 1E 2259+586 field.  K_s band\ndata were obtained on June 21, 2002 at 14:44 UT using the NIRI\ninstrument and a 30-min exposure with seeing 0.7\".  The reported\npossible IR counterpart to the pulsar (Hulleman et al. 2000, A&A, 358,\n605) was detected with preliminary magnitude 20.36 +/- 0.15, 1.34 mag\nbrighter than the quiescent value, indicating the source was 3.4 times\nbrighter (5.4 sigma c.l.) 3 days following the SGR-like X-ray bursts\ndetected with RXTE/PCA (IAUC 7924).  This confirms the IR\nidentification.  Further IR/optical monitoring is advised.\n\nA preliminary Gemini/NIRI image can be found at\nhttp://www.physics.mcgill.ca/~vkaspi/1E2259+586/Gemini.html Note that\nthe relative brightnesses of the pulsar counterpart and star 3 in the\nHulleman et al. K_s Keck image are reversed in the Gemini image,\ndemonstrating that the pulsar brightened.",
  "circularId": 1438,
  "createdOn": 1024793100000,
  "email": "vkaspi@physics.mcgill.ca",
  "subject": "Gemini IR Detection of AXP 1E 2259+586 Post-Burst",
  "submitter": "Victoria M. Kaspi at McGill U/Physics  <vkaspi@physics.mcgill.ca>"
}