IR Observations of SGR 1900+14
ATel #26; B. R. Oppenheimer, J. S. Bloom, S. S. Eikenberry, and K. Matthews (Caltech)
on 5 Jun 1998; 00:43 UT
Credential Certification: R. E. Rutledge (rutledge@astron.berkeley.edu)
Subjects: Infra-Red, Soft Gamma-ray Repeater
We have obtained narrowband 2.2 micron images of the proposed infrared
counterpart to SGR 1900+14 (Vrba et al. 1996, Ap.J. 468, 225) at June
3.486 UT, 4.1 days after the recent bursting activity reported by
Hurley et al. and Kouveliotou et al. (ATEL #23, #24; IAUC # 6929 ).
Differential photometry of stars "A" and "B" (the double M -stars) and
star "C" of Vrba et al. show A-B=0.4 +-0.1 mag and A-C=4.5+-0.2 mag,
consistent with the measurements of Vrba et al. Over the course of 10
minutes (ten separate frames) no variability was detected in the
double M-stars to a limit of 0.1 mag.
