Radio observations of OH toward zeta Ophiuchi: evidence for an interstellar shock

Journal Article · Wed Aug 01 04:00:00 EDT 1979 · Astrophys. J., Lett.; (United States)

DOI:https://doi.org/10.1086/183023· OSTI ID:5881259

Crutcher, R M

The 1667 MHz line of OH has been observed toward zeta Ophiuchi and toward several dusty patches seen projected on the H II region. The column density of OH from radio and that from optical data agree. The OH is in two velocity components, at about : 0.5 km s/sup -1/ and 5 km s/sup -1/. The more negative velocity is that of the strongest atomic and molecular lines observed both at optical and radio wavelengths toward zeta Ophiuchi, with the notable exception of CH/sup +/. The more positive velocity is that of the dust seen in projection. The OH data, together with information about the distance of the material from the star, provide strong support for the theory of Elitzur and Watson that CH/sup +/ is formed by a shock produced by zeta Ophiuchil.

• Research Organization: Astronomy Department, University of Illinois
• OSTI ID: 5881259
• Journal Information: Astrophys. J., Lett.; (United States), Journal Name: Astrophys. J., Lett.; (United States) Vol. 231:3; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHEMICAL COMPOSITION
CHEMISTRY
COSMIC RADIO SOURCES
COSMOCHEMISTRY
ELECTROMAGNETIC RADIATION
ENERGY SPECTRA
H2 REGIONS
HYDROXYL RADICALS
INTERSTELLAR SPACE
MOLECULES
RADIATIONS
RADICALS
RADIOWAVE RADIATION
SHOCK WAVES
SPACE
SPECTRA