Supernova OH (1720 MHz) masers in Sgr A east, W28 and G359.1-0.5

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作者
Yusef-Zadeh, F [1 ]
Roberts, DA
Bower, G
Wardle, M
Goss, WM
机构
[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA
[2] Univ Calif Berkeley, Berkeley, CA 94720 USA
[3] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia
[4] Natl Radio Astron Observ, Socorro, NM 87801 USA
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P1 [天文学];
学科分类号
0704 ;
摘要
A new class of OH (1720 MHz) masers unaccompanied by main-line transitions have recently been discovered (Frail, Goss and Slysh 1994). These masers lie at the interface between supernova remnants (SNRs) interacting with molecular clouds. We discuss three new aspects of SN masers found in the direction toward the Galactic center: (i) the detection of a new -130 kms(-1) OH (1720 MHz) maser in the southern lobe of the molecular ring at the Galactic center, (ii) the detection of extended OH (1720 MHz) maser emission from W28 accompanying the compact maser sources and (iii) the detection of linear polarization of the brightest OH (1720 MHz) maser in SNR G359.1-0.5.
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页码:212 / 216
页数:5
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