The spiral structure and rotation of the neutral hydrogen subsystem in the galaxy
- 1 February 1992
- journal article
- research article
- Published by Taylor & Francis in Astronomical & Astrophysical Transactions
- Vol. 1 (3) , 221-229
- https://doi.org/10.1080/10556799208260469
Abstract
The rotation curve of the Galaxy is found using the whole 21-cm line profile of neutral hydrogen. The distribution of the neutral hydrogen has a ring structure for the region 0.4R 0 ≤ R < 0.66R 0, the four-armed logarithmic spiral is found in the region 0.66R 0 ≤ R < R 0. The pitch angle of the spiral is found to be 18°, the Sun laying between the arms.Keywords
This publication has 3 references indexed in Scilit:
- Galactic Rotation Outside the Solar CirclePublished by Springer Nature ,1985
- Milky Way Spiral Structure: A New LookPublished by Springer Nature ,1983
- The rotation curve of the Galaxy to R = 16 kiloparsecsThe Astrophysical Journal, 1979