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国家天文台受邀就21cm全天平均谱测量实验进展发表新闻述评(图)
21cm 全天 平均谱测量实验 新闻述评
2023/1/12
GMRT Detection of HI 21cm Associated Absorption towards the z D 1:2 Red Quasar 3C 190
active quasars absorption line galaxies quasars
2009/5/18
We report the GMRT detection of associated HI 21 cm-line
absorption in the z D 1:1946 red quasar 3C 190. Most of the absorption
is blue-shifted with respect to the systemic redshift. The absorption...
A High Galactic Latitude HI 21cm-line Absorption Survey using the GMRT:II. Results and Interpretation
clouds kinematics and dynamics radio lines
2009/5/14
We have carried out a sensitive high-latitude (|b| > 15◦)
HI 21 cm-line absorption survey towards 102 sources using the GMRT.
With a 3σ detection limit in optical depth of ∼0.01, this is...
A High Galactic Latitude HI 21cm-line Absorption Survey using the GMRT:I. Observations and Spectra
clouds kinematics and dynamics radio lines
2009/5/14
We have used the Giant Meterwave Radio Telescope (GMRT)
to measure the Galactic HI 21-cm line absorption towards 102 extragalactic
radio continuum sources, located at high (|b| > 15◦) Galactic...