397 citations · 397 across the 1 of their papers we have counts for
6 papers
Stellar Tidal Streams in Spiral Galaxies of the Local Volume: A Pilot Survey with Modest Aperture Telescopes
David Martinez-Delgado, R. Jay Gabany, Ken Crawford +12
[Abridged] Within the hierarchical framework for galaxy formation, minor merging and tidal interactions are expected to shape all large galaxies to the present day. As a consequenc…
Towards an understanding of the Of?p star HD 191612: optical spectroscopy
Ian D. Howarth, Nolan R. Walborn, Danny J. Lennon +17
We present extensive optical spectroscopy of the early-type magnetic star HD 191612 (O6.5f?pe-O8fp). The Balmer and HeI lines show strongly variable emission which is highly reprod…
A Study of Pi Aquarii During a Quasi-normal Star Phase: Refined Fundamental Parameters and Evidence for Binarity
Karen S. Bjorkman, Anatoly S. Miroshnichenko, David McDavid +1
We present the results of recent multicolor photometric and high-resolution spectroscopic observations of the bright Be star Pi Aquarii. Observational data collected from the liter…
A Useful Approximation for Computing the Continuum Polarization of Be Stars
David McDavid
This paper describes a practical model for the polarization of Be stars which can be used to estimate roughly the physical parameters for optically thin circumstellar envelopes fro…
A Search for Intrinsic Polarization in O Stars with Variable Winds
David McDavid
New observations of 9 of the brightest northern O stars have been made with the Breger polarimeter on the 0.9~m telescope at McDonald Observatory and the AnyPol polarimeter on the…
Multicolor Polarimetry of Selected Be Stars: 1995-98
David McDavid
A new polarimeter called AnyPol has been used at Limber Observatory for four years to annually monitor the broadband linear polarization of a sample of bright northern Be stars. Th…