Work

The corotation gap in the Galactic H i distribution

Year: 2009

Type: article

Abstract: We used the H i data from the LAB Survey to map the ring-shaped gap in H i density that lies slightly outside the solar circle. Adopting R0= 7.5 kpc, we find an average gap radius of 8.3 kpc and an average gap width of 0.8 kpc. The characteristics of the H i gap correspond closely to the expected ones, as predicted by theory and by numerical simulations of the gas flow near the corotation resonance.

Source: Monthly Notices of the Royal Astronomical Society

DOI: 10.1111/j.1365-2966.2009.15611.x

Authors: E. B. AmÃ´res, J. R. D. LÃ©pine, Yu. N. Mishurov

Institutions: University of Lisbon, Universidade de São Paulo, Russian Academy of Sciences, Southern Federal University, Special Astrophysical Observatory

Language: English

Topic: Galaxies: Formation, Evolution, Phenomena

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2163130227

FWCI: 1.182

Cites: 58

Cited by: 30

Related to: 10