324 citations · 335 across the 5 of their papers we have counts for
4 papers · 1 filter
The Photometric Variability of HH 30
Alan M. Watson, María Carolina Durán-Rojas, Karl R. Stapelfeldt
HH 30 is an edge-on disk around a young stellar object. Previous imaging with the Hubble Space Telescope has show morphological variability that is possibly related to the rotation…
Photometry of Polar-Ring Galaxies
Arturo Godínez-Martínez, Alan M. Watson, Lynn D. Matthews +1
We have obtained photometry in B and R for seven confirmed or probable polar-ring galaxies from the Polar-Ring Catalog of Whitmore et al. (1990). The rings show a range of colors f…
A Lossy Method for Compressing Raw CCD Images
Alan M. Watson
This paper describes a lossy method for compressing raw images produced by CCDs or similar devices. The method is very simple: lossy quantization followed by lossless compression u…
An Efficient Monte Carlo Algorithm for a Restricted Class of Scattering Problems in Radiation Transfer
Alan M. Watson, William J. Henney
We describe an efficient Monte Carlo algorithm for a restricted class of scattering problems in radiation transfer. This class includes many astrophysically interesting problems, i…