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UNUSUAL SHOCK-EXCITED OH MASER EMISSION IN A YOUNG PLANETARY NEBULA
Qiao, Hai-Hua1,2,3,4; Walsh, Andrew J.3; Gomez, Jose F.5; Imai, Hiroshi6; Green, James A.7; Dawson, Joanne R.8,9,10; Shen, Zhi-Qiang1,4; Ellingsen, Simon P.11; Breen, Shari L.10; Jones, Paul A.12; Gibson, Steven J.13; Cunningham, Maria R.12
2016-01-20
Source PublicationASTROPHYSICAL JOURNAL
Volume817Issue:1
AbstractWe report on OH maser emission toward G336.644-0.695 (IRAS 16333-4807), which is a H2O maser-emitting Planetary Nebula (PN). We have detected 1612, 1667, and 1720 MHz OH masers at two epochs using the Australia Telescope Compact Array, hereby confirming it as the seventh known case of an OH-maser-emitting PN. This is only the second known PN showing 1720 MHz OH masers after K 3-35 and the only evolved stellar object with 1720 MHz OH masers as the strongest transition. This PN is one of a group of very young PNe. The 1612 MHz and 1667 MHz masers are at a similar velocity to the 22 GHz H2O masers, whereas the 1720 MHz masers show a variable spectrum, with several components spread over a higher velocity range (up to 36 km s(-1)). We also detect Zeeman splitting in the 1720 MHz transition at two epochs (with field strengths of similar to 2 to similar to 10 mG), which suggests the OH emission at 1720 MHz is formed in a magnetized environment. These 1720 MHz OH masers may trace short-lived equatorial ejections during the formation of the PN.
KeywordMasers Planetary Nebulae: General Planetary Nebulae: Individual (Iras 16333-4807)
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.3847/0004-637X/817/1/37
WOS KeywordASYMPTOTIC-GIANT-BRANCH ; SUPERNOVA-REMNANTS ; MAGNETIC-FIELD ; K 3-35 ; MERLIN POLARIMETRY ; STARS ; HYDROXYL ; AGB ; H2O ; IRAS-17347-3139
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000368872400037
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16140
Collection南极天文中心
Affiliation1.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquanlu, Beijing 100049, Peoples R China
3.Curtin Univ, Int Ctr Radio Astron Res, GPO Box U1987, Perth, WA 6845, Australia
4.Chinese Acad Sci, Key Lab Radio Astron, Shanghai 200030, Peoples R China
5.CSIC, Inst Astrofis Andalucia, Glorieta Astron S-N, E-18008 Granada, Spain
6.Kagoshima Univ, Grad Sch Sci & Engn, Dept Phys & Astron, 1-21-35 Korimoto, Kagoshima 8900065, Japan
7.SKA Org, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England
8.Macquarie Univ, Dept Phys & Astron, Sydney, NSW 2109, Australia
9.Macquarie Univ, MQ Res Ctr Astron Astrophys & Astrophoton, Sydney, NSW 2109, Australia
10.CSIRO Astron & Space Sci, Australia Telescope Natl Facil, POB 76, Epping, NSW 1710, Australia
11.Univ Tasmania, Sch Phys Sci, Private Bag 37, Hobart, Tas 7001, Australia
12.Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia
13.Western Kentucky Univ, Dept Phys & Astron, 1906 Coll Hts Blvd, Bowling Green, KY 42101 USA
Recommended Citation
GB/T 7714
Qiao, Hai-Hua,Walsh, Andrew J.,Gomez, Jose F.,et al. UNUSUAL SHOCK-EXCITED OH MASER EMISSION IN A YOUNG PLANETARY NEBULA[J]. ASTROPHYSICAL JOURNAL,2016,817(1).
APA Qiao, Hai-Hua.,Walsh, Andrew J..,Gomez, Jose F..,Imai, Hiroshi.,Green, James A..,...&Cunningham, Maria R..(2016).UNUSUAL SHOCK-EXCITED OH MASER EMISSION IN A YOUNG PLANETARY NEBULA.ASTROPHYSICAL JOURNAL,817(1).
MLA Qiao, Hai-Hua,et al."UNUSUAL SHOCK-EXCITED OH MASER EMISSION IN A YOUNG PLANETARY NEBULA".ASTROPHYSICAL JOURNAL 817.1(2016).
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