The corotation gap in the Galactic HI distribution
Astrophysics of Galaxies
2015-05-13 v1 Solar and Stellar Astrophysics
Abstract
We used the HI data from the LAB survey to map the ring-shaped gap in HI density which lies slightly outside the solar circle. Adopting = 7.5 kpc, we find and average radius of 8.3 kpc and an average gap width of 0.8 kpc. The characteristics of the HI gap correspond closely to the expected ones, as predicted by theory and by numerical simulations of the gas flow near the corotation resonance.
Keywords
Cite
@article{arxiv.0907.4822,
title = {The corotation gap in the Galactic HI distribution},
author = {Eduardo B. Amôres and Jacques R. D. Lépine and Yu. N. Mishurov},
journal= {arXiv preprint arXiv:0907.4822},
year = {2015}
}
Comments
To be published in MNRAS