Abstract
view Abstract Citations (15) References (16) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Interstellar K I and Na I absorption lines near Rho Ophiuchi. Hobbs, L. M. Abstract Results are reported for photoelectric interferometric scans of the interstellar K I (7699 A) and Na I D1 absorption lines toward rho Oph AB and omicron Sco in the complex of dark clouds near rho Oph. The scans are found to reveal a well-marked line multiplicity toward both stars. It is shown that the resolved components of the line profiles can provide a natural explanation for the difference between the radial velocity of the strongest atomic lines of Na I and Ca II and that of the much weaker molecular lines of CH(+), CH, and CN that was previously observed toward rho Oph. The less saturated 7699-A lines toward both stars yield K I column densities roughly consistent with the calculated interstellar reddening. Publication: The Astrophysical Journal Pub Date: September 1975 DOI: 10.1086/153829 Bibcode: 1975ApJ...200..621H Keywords: Absorption Spectra; Interstellar Extinction; Interstellar Matter; Line Shape; Nebulae; Atomic Spectra; Line Spectra; Potassium; Red Shift; Sodium; Stellar Spectra; Water; Astrophysics full text sources ADS | data products SIMBAD (5)
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