1088 A feature toward reddened stars

Journal Article · Wed Oct 01 00:00:00 EDT 1986 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/164601· OSTI ID:6836606

Federman, S R

An analysis of the interstellar feature near 1088 A in spectra obtained with the Copernicus satellite suggests that neutral chlorine is the absorber. The mean wavelength, as determined from 15 lines of sight, of 1088.052 + or - 0.023 A compares favorably with the chlorine line at 1088.062 A. A strong correlation with Cl I 1347 A indicates an oscillator strength for 1088 A of 0.04. Above a threshold at N(H2) of roughly 10 to the 19th/sq cm, the equivalent width of 1088 A varies approximately with N(H2). The variation with H2 is similar to the variation of Na I and C I with H2. 18 references.

• Research Organization: Jet Propulsion Lab., Pasadena, CA
• OSTI ID: 6836606
• Journal Information: Astrophys. J.; (United States), Vol. 309
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
INTERSTELLAR SPACE
CHEMICAL COMPOSITION
ABSORPTION
CHLORINE
OSCILLATOR STRENGTHS
ULTRAVIOLET SPECTRA
ELEMENTS
HALOGENS
NONMETALS
SPACE
SPECTRA
640105* - Astrophysics & Cosmology- Galaxies