Determination of the distance of the sun from the center of the galaxy deduced from the rotation curve

Journal Article · Sat Mar 01 04:00:00 EST 1986 · Astrophysics (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF01007378· OSTI ID:5265657

Yurevich, L V

This paper determines the distance R/sub 0/ to the rotation center of the field of circular velocities of OH clouds in the plane of the Galaxy. The radial velocities of the clouds are the data of the surveys at the frequencies 1665 and 1667 MHz. The distances of the clouds from the Sun are determined from the way that the parameters of the hydroxyl radio absorption lines depend on the helicentric distance. From comparison of the behavior of the circular velocities of the clouds in the central regions of the Galaxy with the results of numerical simulation of the rotation curve the value R/sub 0/ = 8.2 + or - /sup 0.9//sub 0.7/ kpc is obtained. Rotation curves for the Galaxy for two galactocentric quadrents are given and they agree well with results obtained by a different method using neutral hydrogen.

• Research Organization: Principal Astronomical Observatory, Ukrainian Academy of Sciences
• OSTI ID: 5265657
• Journal Information: Astrophysics (Engl. Transl.); (United States), Journal Name: Astrophysics (Engl. Transl.); (United States) Vol. 23:2; ISSN ATPYA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTRA
CLOUDS
COSMIC GASES
DIAGRAMS
DISTANCE
ELECTROMAGNETIC RADIATION
FLUIDS
FUNCTIONS
GALAXIES
GASES
HYDROXYL RADICALS
INTERPLANETARY SPACE
MAIN SEQUENCE STARS
MATHEMATICAL MODELS
MILKY WAY
MOTION
POLYNOMIALS
RADIAL VELOCITY
RADIATIONS
RADICALS
RADIOWAVE RADIATION
ROTATION
SPACE
SPECTRA
STARS
SUN
TURBULENCE
VELOCITY