Interstellar magnesium absorption in the direction of four unreddened stars

Journal Article · Mon Dec 01 04:00:00 EST 1975 · Astrophys. J., Lett., v. 202, no. 2, pp. L91-L95

DOI:https://doi.org/10.1086/181988· OSTI ID:4056967

Boksenberg, A; Kirkham, B; Pettini, M; Bates, B; Carson, P P.D.; Dufton, P L; McKeith, C D

Spectral observations of the interstellar lines of Mg$sup +$ at 2795 and 2802 A and Mg$sup 0$ at 2852 A have been made with a resolution of 0.1 A, toward several stars, with an objective grating spectrograph mounted on a balloon-borne, star-stabilized platform. The analysis of the spectra of four, nearby, unreddened stars is discussed, and values for the interstellar Mg abundance and electron density for the gas in these directions are derived. (AIP)

• Research Organization: University Coll., London
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-024117
• OSTI ID: 4056967
• Journal Information: Astrophys. J., Lett., v. 202, no. 2, pp. L91-L95, Journal Name: Astrophys. J., Lett., v. 202, no. 2, pp. L91-L95; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

*INTERSTELLAR SPACE-- CHEMICAL COMPOSITION
640105* --Physics Research--Astrophysics & Cosmology-- Galaxies
ABSORPTION
COSMIC GASES
COSMOCHEMISTRY
ELECTRON DENSITY
MAGNESIUM
N56200 --Physics (Astrophysics & Cosmology)--Stars
N56500* --Physics (Astrophysics & Cosmology)--Galaxies
ULTRAVIOLET SPECTRA