Mapping the Spiral Structure of the Milky Way Galaxy at 21cm Wavelength Using the SALSA Radio Telescope of Onsala Space Observatory

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.

参考文章(5)
WN Christiansen, JV Hindman, A Preliminary Survey of 1420 Mc/s. Line Emission from Galactic Hydrogen Australian Journal of Chemistry. ,vol. 5, pp. 437- 455 ,(1952) , 10.1071/CH9520437
M. Schmidt, The spiral structure of the outer part of the Galactic System derived from the hydrogen emission at 21 cm wavelength Bulletin of the Astronomical Institutes of the Netherlands. ,vol. 12, pp. 117- ,(1954)
G. Westerhout, C.A. Muller, A catalogue of 21-cm line profiles Bulletin of the Astronomical Institutes of the Netherlands. ,vol. 13, pp. 151- ,(1957)