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Alternative Data Reduction Procedures for UVES: Wavelength Calibration and Spectrum Addition
Rodger I. Thompson, Jill Bechtold, John H. Black +1
This paper addresses alternative procedures to the ESO supplied pipeline procedures for the reduction of UVES spectra of two quasar spectra to determine the value of the fundamenta…
Discovery of superthermal hydroxyl (OH) in the HH211 outflow
A. Tappe, C. J. Lada, J. H. Black +1
We present a 5-37 micron infrared spectrum obtained with the Spitzer Space Telescope toward the southeastern lobe of the young protostellar outflow HH211. The spectrum shows an ext…
A computer program for fast non-LTE analysis of interstellar line spectra
Floris van der Tak, John Black, Fredrik Schoeier +2
The large quantity and high quality of modern radio and infrared line observations require efficient modeling techniques to infer physical and chemical parameters such as temperatu…
Molecular oxygen in the rho Ophiuchi cloud
B. Larsson, R. Liseau, L. Pagani +56
Molecular oxygen, O2 has been expected historically to be an abundant component of the chemical species in molecular clouds and, as such, an important coolant of the dense interste…
A PDR-Code Comparison Study
M. Roellig, N. P. Abel, T. Bell +21
We present a comparison between independent computer codes, modeling the physics and chemistry of interstellar photon dominated regions (PDRs). Our goal was to understand the mutua…
Discovery of Interstellar CF+
D. A. Neufeld, P. Schilke, K. M. Menten +7
We discuss the first astronomical detection of the CF+ (fluoromethylidynium) ion, obtained by observations of the J=1-0 (102.6 GHz), J=2-1 (205.2 GHz) and J=3-2 (307.7 GHz) rotatio…