PMO OpenIR  > 星系中的恒星形成研究团组
Identification of new methanol lines toward Sagittarius B2
Pei, CC; Liu, SY; Snyder, LE
2000-02-20
Source PublicationASTROPHYSICAL JOURNAL
Volume530Issue:2Pages:800-805
AbstractThe first astronomical measurements of the J(k) = 18(2)-18(1), 19(2)-19(1), and 20(2)-20(1) E transitions of methanol (CH3OH) are presented. A rotational temperature T-rot = 170(13) K was determined for the Sgr B2N-LMH core by combining the data from the J(k) = 13(2)-13(1) and 17(2)-17(1) E transitions. The total column density of CH3OH is N-T(CH3OH) = 4.2(6) x 10(17) cm(-2), and the fractional abundance of CH3OH is X(CH3OH) approximate to 4 x 10(-8). The H59 alpha recombination line and a new unidentified line were detected.
KeywordGalaxy : Center Ism : Abundances Ism : Individual (Sagittarius B2) Ism : Molecules Line : Identification
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordMILLIMETER-WAVE ; ORION-KL ; MOLECULES ; SPECTRUM ; GHZ
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000086062500019
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/15990
Collection星系中的恒星形成研究团组
Affiliation1.Univ Illinois, Dept Astron, Urbana, IL 61801 USA
2.Chinese Acad Sci, Natl Astron Observ, Purple Mtn Observ, Beijing 100864, Peoples R China
Recommended Citation
GB/T 7714
Pei, CC,Liu, SY,Snyder, LE. Identification of new methanol lines toward Sagittarius B2[J]. ASTROPHYSICAL JOURNAL,2000,530(2):800-805.
APA Pei, CC,Liu, SY,&Snyder, LE.(2000).Identification of new methanol lines toward Sagittarius B2.ASTROPHYSICAL JOURNAL,530(2),800-805.
MLA Pei, CC,et al."Identification of new methanol lines toward Sagittarius B2".ASTROPHYSICAL JOURNAL 530.2(2000):800-805.
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