Deep Radio, Optical, and Infrared Observations of SGR 1900+14

Abstract

We present Hubble Space Telescope/STIS, Keck J- and K_s-band, and VLA 332 and 1400 MHz images of the region around the soft γ-ray Repeater SGR 1900+14. No nonstellar sources were detected at the position of SGR 1900+14, giving 3 σ limits of S_332MHz<6 mJy, S_1.4GHz<1.5 mJy, m_50CCD>~29.0 mag, J>~22.8 mag, K_s>~20.8 mag (point sources), and S_332MHz<6.1 mJy arcmin^-2, S_1.4GHz<6.2 mJy arcmin^-2 (extended emission). Given the very high extinction, the STIS and J-band nondetections are not constraining, but the K_s-band limit rules out basic accretion disk models for SGR 1900+14 and is almost comparable in depth to the K_s-band detection for the anomalous X-ray pulsar 4U 0142+61. Finally, we report the detection in this field of three new candidate supernova remnants, SNRs G043.5+00.6, G042.0-00.1, and G041.5+00.4.