Deep Radio, Optical, and Infrared Observations of SGR 1900+14
Deep Radio, Optical, and Infrared Observations of SGR 1900+14
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SGR 1900 的深度射电、光学和红外观测 14
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
M. Kerkwijk
中科院分区：
文献类型：
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作者：
D. Kaplan;S. Kulkarni;D. Frail;M. Kerkwijk
我们给出了软γ射线中继器SGR1900+14周围区域的哈勃太空望远镜/STI、KeckJ波段和Ks波段以及VLA332和1400 MHz的图像。在SGR1900+14位置没有探测到非恒星源，给出了3个σ极限：S332 MHz&ly；6mJy，S1.4 GHz<；1.5mJy，m50CCD29.0mag，J≳22.8mag，Ks≳20.8mag(点源)和S332 MHz<；6.1mJy arcmin-2，S1.4 GHz<；6.2mJy≳-2(扩展发射)。考虑到很高的消光率，STI和J波段的探测不受限制，但Ks波段极限排除了SGR 1900+14的基本吸积盘模型，在深度上几乎与异常X射线脉冲星4U 0142+61的Ks波段探测相当。最后，我们报道了三个新的候选超新星遗迹G043.5+00.6、G042.0-00.1和G041.5+00.4的探测结果。
We present Hubble Space Telescope/STIS, Keck J- and Ks-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 S332 MHz < 6 mJy, S1.4 GHz < 1.5 mJy, m50CCD ≳ 29.0 mag, J ≳ 22.8 mag, Ks ≳ 20.8 mag (point sources), and S332 MHz < 6.1 mJy arcmin-2, S1.4 GHz < 6.2 mJy arcmin-2 (extended emission). Given the very high extinction, the STIS and J-band nondetections are not constraining, but the Ks-band limit rules out basic accretion disk models for SGR 1900+14 and is almost comparable in depth to the Ks-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.