258 citations · 1k across the 13 of their papers we have counts for
13 papers
The Apache Point Observatory Catalog of Optical Diffuse Interstellar Bands
Haoyu Fan, L. M. Hobbs, Julie A. Dahlstrom +7
Aiming for a new and more comprehensive DIB catalog between 4,000 and 9,000Å, we revisited the Atlas Catalog based on the observations of HD 183143 and HD 204827 (Hobbs et al. 2008…
The Behavior of Selected Diffuse Interstellar Bands with Molecular Fraction in Diffuse Atomic and Molecular Clouds
Haoyu Fan, Daniel E. Welty, Donald G. York +10
We study the behavior of eight diffuse interstellar bands (DIBs) in different interstellar environments, as characterized by the fraction of hydrogen in molecular form [(H)]…
Geometry and velocity structure of HD 44179's bipolar jet
Joshua D. Thomas, Adolf N. Witt, Jason P. Aufdenberg +4
In this paper we analyse a set of 33 optical spectra, which were acquired with the ARCES echelle spectrograph (R = 38,000) on the 3.5-m telescope at the Apache Point Observatory. W…
The nature of the Na I D-lines in the Red Rectangle
Joshua D. Thomas, Adolf N. Witt, Jason P. Aufdenberg +6
In this paper we examine the profiles of the complex Na I D-lines in the Red Rectangle. The spectra were acquired with the ARCES échelle spectrograph R = 38,000 on the 3.5-m telesc…
Li I and K I Scatter in Cool Pleiades Dwarfs
J. R. King, S. C. Schuler, L. M. Hobbs +1
We utilize high-resolution (R~60,000), high S/N (~100) spectroscopy of 17 cool Pleiades dwarfs to examine the confounding star-to-star scatter in the 6707 Li I line strengths in th…
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…