A survey for OH (1720 MHz) maser emission toward supernova remnants

被引:231
|
作者
Frail, DA
Goss, WM
Reynoso, EM
Giacani, EB
Green, AJ
Otrupcek, R
机构
[1] INST ASTRON & FIS ESPACIO,RA-1428 BUENOS AIRES,DF,ARGENTINA
[2] UNIV SYDNEY,SCH PHYS,SYDNEY,NSW 2006,AUSTRALIA
[3] AUSTRALIA TELESCOPE NATL FACIL,EPPING,NSW 2121,AUSTRALIA
来源
ASTRONOMICAL JOURNAL | 1996年 / 111卷 / 04期
关键词
D O I
10.1086/117904
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The satellite line of the hydroxyl radical (OH) at 1720.5 MHz has been searched for in the direction of 66 supemova remnants in our Galaxy with the Green Bank 43-m and Parkes 64-m telescopes. We detect OH emission toward 20 supemova remnants. Follow-up observations with the VLA and ATCA resulted in the detection of compact emission from 8 supernova remnants. We argue that these features are masers and that they are physically associated with the supemova remnants. A model in which the masers are collisionally excited by the passage of the supernova remnant shock through a molecular cloud best describes the data. Thus, in addition to the stellar masers and the masers found in star forming regions, there is now a new and growing class of masers found in supernova remnants. The OH(1720 MHz) line provides a powerful new diagnostic for finding and studying the interaction of supernova remnants with molecular clouds. (C) 1996 American Astronomical Society.
引用
收藏
页码:1651 / 1659
页数:9
相关论文
共 50 条
  • [1] Continuation of a survey of OH (1720 MHz) maser emission towards supernova remnants
    Green, AJ
    Frail, DA
    Goss, WM
    Otrupcek, R
    [J]. ASTRONOMICAL JOURNAL, 1997, 114 (05): : 2058 - 2067
  • [2] A survey of hydroxyl toward supernova remnants: Evidence for extended 1720 MHz maser emission
    Hewitt, J. W.
    Yusef-Zadeh, F.
    Wardle, M.
    [J]. ASTROPHYSICAL JOURNAL, 2008, 683 (01): : 189 - 206
  • [3] Supernova remnants and OH (1720 MHz) masers
    Green, AJ
    [J]. COSMIC MASERS: FROM PROTOSTARS TO BLACKHOLES, 2002, (206): : 204 - 211
  • [4] CO observations toward supernova remnants with associated OH 1720 MHz masers
    Reynoso, EM
    Mangum, JG
    [J]. ASTROPHYSICAL JOURNAL, 2000, 545 (02): : 874 - 884
  • [5] OH (1720 MHz) masers associated with supernova remnants
    Brogan, CL
    [J]. Future Directions in High Resolution Astronomy: The 10th Anniversary of the VLBA, 2005, 340 : 334 - 341
  • [6] OH (1720 MHz) masers and mixed-morphology supernova remnants
    Yusef-Zadeh, F
    Wardle, M
    Rho, J
    Sakano, M
    [J]. ASTROPHYSICAL JOURNAL, 2003, 585 (01): : 319 - 323
  • [7] Magnetic fields in supernova remnants from OH (1720 MHz) masers
    Brogan, C
    Claussen, MJ
    Goss, WM
    [J]. COSMIC MASERS: FROM PROTOSTARS TO BLACKHOLES, 2002, (206): : 217 - 220
  • [8] OH (1720 MHz) maser search toward the Large Magellanic Cloud
    Brogan, CL
    Goss, WM
    Lazendic, JS
    Green, AJ
    [J]. ASTRONOMICAL JOURNAL, 2004, 128 (02): : 700 - 708
  • [9] A search for OH 6 GHz maser emission towards supernova remnants
    McDonnell, Korinne E.
    Wardle, Mark
    Vaughan, Alan E.
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2008, 390 (01) : 49 - 58
  • [10] Thermal OH (1667/1665 MHz) absorption and nonthermal OH (1720 MHz) emission toward the W28 supernova remnant
    Yusef-Zadeh, F
    Wardle, M
    Roberts, DA
    [J]. ASTROPHYSICAL JOURNAL, 2003, 583 (01): : 267 - 271