作者: Tarif Rashid Santo , Syed Ashraf Uddin
DOI:
关键词:
摘要: The spiral arms of M ilky Way can be observed at a rest wavelength 21cm emission that is produced by the hyperfine transition electrons in atomic hydrogen. An observation was carried out from galactic longitude 0° to 225° plane. Using velocity components hydrogen clouds locating different longitudes, as function distance center galaxy, were plotted. whole frequency switching mode using remotely operated SA LSA-Onsala 2.3m Radio Telescope located Onsala Space Observatory, Sweden.