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Bα and Ne II line spectroscopy in the vicinity of the Galactic center source IRS 16

Geballe, T. R. and Persson, S. E. and Lacy, J. H. and Neugebauer, G. and Beck, S. C. (1982) Bα and Ne II line spectroscopy in the vicinity of the Galactic center source IRS 16. In: The Galactic Center. AIP Conference Proceedings. No.83. American Institute of Physics , Melville, NY, pp. 60-66. ISBN 0883181827.

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Bα(4.05μm) and (Ne II) (12.81 μm) line spectra at spatial resolutions of ~3" and spectral resolutions of 80 km s^(−1) have been obtained on a grid of positions surrounding IRS 16, which may be at the Galactic center. The Bα 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^(−1). A spectrum of Bα from an 8" beam centered on IRS 16 and covering −7500 to +6500 km s^(−1) with 500 km s^(−1) resolution shows marginal evidence for a broad‐line component. These data imply that no concentration of moderate velocity gas (|v|<300 km s−^(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.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Lacy, J. H.0000-0001-6783-2328
Additional Information:© 1982 AIP Publishing.
Subject Keywords:Galactic nuclei; Astronomical spectroscopy; Spatial resolution
Series Name:AIP Conference Proceedings
Issue or Number:83
Record Number:CaltechAUTHORS:20170228-140110556
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74600
Deposited By: George Porter
Deposited On:28 Feb 2017 22:45
Last Modified:11 Nov 2021 05:28

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