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Absorption Line Survey of H3+ toward the Galactic Center Sources II. Eight Infrared Sources within 30 pc of the Galactic Center
Miwa Goto, T. Usuda, T. Nagata +7
Infrared absorption lines of H3+, including the metastable R(3,3)l line, have been observed toward eight bright infrared sources associated with hot and massive stars located in an…
A Catalog of Diffuse Interstellar Bands in the Spectrum of HD 204827
L. M. Hobbs, D. G. York, T. P. Snow +8
Echelle spectra of the double-lined spectroscopic binary HD 204827 were obtained on five nights, at a resolving power R = 38,000 and with a S/N ratio = 750 near 6000 A in the final…
A search for ortho-benzyne (o-C6H4) in CRL 618
Susanna L. Widicus Weaver, Anthony J. Remijan, Robert J. McMahon +1
Polycyclic aromatic hydrocarbons (PAHs) have been proposed as potential carriers of the unidentified infrared bands (UIRs) and the diffuse interstellar bands (DIBs). PAHs are not l…
The Interstellar Medium of IRAS 08572+3915 NW: H3+ and Warm High Velocity CO
T. R. Geballe, M. Goto, T. Usuda +2
We confirm the first detection of the molecular ion H3+ in an extragalactic object, the highly obscured ultraluminous galaxy IRAS 08572+3915 NW. We also have detected absorption li…
Hot and Diffuse Clouds near the Galactic Center Probed by Metastable H3+
Takeshi Oka, T. R. Geballe, Miwa Goto +2
Using an absorption line from the metastable (J, K) = (3, 3) level of H3+ together with other lines of H3+ and CO observed along several sightlines, we have discovered a vast amoun…
Search for H3+ in HD141569A
M. Goto, T. R. Geballe, B. J. McCall +5
A search for H3+ line emission, reported to have been detected toward the young star HD 141569A and possibly originating in a clump of planet-forming gas orbiting the star, has yie…