Spectral System of the Urumqi Telescope and Water Maser Studies

	Spectral System of the Urumqi Telescope and Water Maser Studies
	Esimbek, Jarken1,2 ; Wu, Yuefang 1; Zhang, Hongbo2
	2003-02-01
Source Publication	Acta Astronomica Sinica
ISSN	0001-5245
Volume	44 Issue:Suppl.Pages:76-79
Contribution Rank	2
Abstract	For spectral line observations in short centimeter wavelength, a new system was installed in the 25m telescope of Urumqi Station of NAOC. The receiver is a cryogenically cooled HEMT receiving system with a 2 GHz wide band, a 20K working temperature and an average noise temperature of 50 K. The back end is SAW chirp-transform spectrum analyzing system with a total bandwidth of 40 MHz and a frequency resolution of 40 kHz. Many known H2O maser sources were observed. A;new digital correlation spectrometer will be installed at the end of this year. The site and new facilities at Urumqi Astronomical Station provide excellent conditions for the spectral line observations in centimeter wavelength region. A frontier subject in;astrophysics, studying for water masers and star formation was designed.
Keyword	astronomical technique-spectrometer ISM: masers stars: formation
URL	查看原文
Indexed By	其他
Language	英语
Document Type	期刊论文
Identifier	http://ir.xao.ac.cn/handle/45760611-7/3211
Collection	射电天文研究室_恒星形成与演化研究团组
Affiliation	1.Astronomy Dept, CAS-PKU Joint Beijing Astrophysics Center 100871; 2.Urumqi Astronomical Observatory, NAO, CAS, Urumqi 830011
Recommended Citation GB/T 7714	Esimbek, Jarken,Wu, Yuefang,Zhang, Hongbo. Spectral System of the Urumqi Telescope and Water Maser Studies[J]. Acta Astronomica Sinica,2003,44(Suppl.):76-79.
APA	Esimbek, Jarken,Wu, Yuefang,&Zhang, Hongbo.(2003).Spectral System of the Urumqi Telescope and Water Maser Studies.Acta Astronomica Sinica,44(Suppl.),76-79.
MLA	Esimbek, Jarken,et al."Spectral System of the Urumqi Telescope and Water Maser Studies".Acta Astronomica Sinica 44.Suppl.(2003):76-79.

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