6 papers · 1 filter
Finding Extrasolar Planets in the Stellar Graveyard with the Hubble Space Telescope
John H. Debes, Steinn Sigurdsson, Bruce E. Woodgate
In order to directly image an extrasolar planet, the large contrast between a star and a companion planet must be overcome. White Dwarfs (WDs) are the remnants of stars > 1 M_sun a…
FUSE Observations of the Active Cool Star AB Doradus
T. B. Ake, A. K. Dupree, P. R. Young +5
Far ultraviolet spectra were obtained of the active cool star AB Doradus (HD 36705) during the calibration and checkout period of the FUSE satellite. Observations in this early pha…
Redshift estimation from low-resolution prism SEDs with an NGST MOS
Harry I. Teplitz, Eliot Malumuth, Bruce E. Woodgate +8
We discuss the utility of a low resolution prism as a component of a Multi-Object Spectrometer for NASA's proposed Next Generation Space Telescope (NGST). Low resolution prism spec…
FUSE Observations of the Low-Redshift Lyman-beta Forest
J. M. Shull, M. L. Giroux, S. V. Penton +10
We describe a moderate-resolution (20-25 km/s) FUSE study of the low-redshift intergalactic medium. We report on studies of 7 extragalactic sightlines and 12 Ly-beta absorbers that…
Emission-Line Properties of the LMC Bubble N70
Brooke P. Skelton, William H. Waller, Richard F. Gelderman +4
We present a spectrophotometric imaging study of the emission bubble N70 (DEM 301) in the Large Magellanic Cloud. N70 is approximately 100 pc in size with a nearly circular shell-l…
Galaxy Clusters and Large Scale Structure at High Redshifts
Paul J. Francis, Bruce E. Woodgate, Anthony C. Danks
We present a detailed study of a rich galaxy cluster at z=2.38. We demonstrate that this cluster contains large overdensities of damped Ly-alpha absorption lines, of Ly-alpha emitt…