369 citations · 2.2k across the 18 of their papers we have counts for
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Observational Results of a Multi-Telescope Campaign in Search of Interstellar Urea [(NH)CO]
Anthony J. Remijan, Lewis E. Snyder, Brett A. McGuire +10
In this paper, we present the results of an observational search for gas phase urea [(NH)CO] observed towards the Sgr B2(N-LMH) region. We show data covering urea transitio…
Investigating the Cosmic-Ray Ionization Rate in the Galactic Diffuse Interstellar Medium through Observations of H3+
Nick Indriolo, Benjamin J. McCall
Observations of H3+ in the Galactic diffuse interstellar medium (ISM) have led to various surprising results, including the conclusion that the cosmic-ray ionization rate (zeta_2)…
On the Ortho:Para Ratio of H3+ in Diffuse Molecular Clouds
Kyle N. Crabtree, Nick Indriolo, Holger Kreckel +2
The excitation temperature T_01 derived from the relative intensities of the J = 0 (para) and J = 1 (ortho) rotational levels of H2 has been assumed to be an accurate measure of th…
Studies of Diffuse Interstellar Bands. V. Pairwise Correlations of Eight Strong DIBs and Neutral Hydrogen, Molecular Hydrogen, and Color Excess
Scott D. Friedman, Donald G. York, Benjamin J. McCall +7
We establish correlations between equivalent widths of eight diffuse interstellar bands (DIBs), and examine their correlations with atomic hydrogen, molecular hydrogen, and EB-V .…
Constraining the Environment of CH+ Formation with CH3+ Observations
Nick Indriolo, Takeshi Oka, T. R. Geballe +1
The formation of CH+ in the interstellar medium has long been an outstanding problem in chemical models. In order to probe the physical conditions of the ISM in which CH+ forms, we…
Studies of the Diffuse Interstellar Bands. III. HD 183143
L. M. Hobbs, D. G. York, J. A. Thorburn +8
Echelle spectra of HD 183143 [B7Iae, E(B-V) = 1.27] were obtained on three nights, at a resolving power R = 38,000 and with a signal-to-noise ratio ~1000 at 6400 A in the final, co…