B. cap alpha. and Ne II line spectroscopy in the vicinity of the Galactic center source IRS 16

Journal Article · Sat May 01 00:00:00 EDT 1982 · AIP Conf. Proc.; (United States)

DOI:https://doi.org/10.1063/1.33495· OSTI ID:5201690

Geballe, T R; Persson, S E; Lacy, J H; Neugebauer, G; Beck, S C

B..cap alpha..(4.05..mu..m) and (Ne II) (12.81 ..mu..m) line spectra at spatial resolutions of approx.3triangle-solid and spectral resolutions of 80 km s/sup -1/ have been obtained on a grid of positions surrounding IRS 16, which may be at the Galactic center. The B..cap alpha.. and (Ne II) line profiles agree within the uncertainties and neither set of spectra shows evidence of ionized gas associated with IRS 16 over a velocity range of-500 to +450 km s/sup -1/. A spectrum of B..cap alpha.. from an triangle-solid beam centered on IRS 16 and covering -7500 to +6500 km s/sup -1/ with 500 km s/sup -1/ resolution shows marginal evidence for a broad-line component. These data imply that no concentration of moderate velocity gas (AmkvVertical Bar<300 km s/sup -1/) is directly associated with IRS 16 and that the ionized gas near IRS 16 is for the most part neither very dense nor of very high velocity.

• Research Organization: Mt. Wilson and Las Campanas Observatories, Carnegie Institution of Washington, Pasadena, CA
• OSTI ID: 5201690
• Journal Information: AIP Conf. Proc.; (United States), Vol. 83:1
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GALAXY NUCLEI
INFRARED SPECTRA
IONIZED GASES
HYDROGEN
RADIAL VELOCITY
MILKY WAY
NEON IONS
FABRY-PEROT INTERFEROMETER
LINE WIDTHS
CHARGED PARTICLES
ELEMENTS
FLUIDS
GALAXIES
GASES
INTERFEROMETERS
IONS
MEASURING INSTRUMENTS
NONMETALS
SPECTRA
VELOCITY
640105* - Astrophysics &amp; Cosmology- Galaxies