4 papers
Space Studies of the Black-Drop Effect at a Mercury Transit
G. Schneider, J. M. Pasachoff, L. Golub
Transits of Mercury and Venus across the face of the Sun are rare. The 20th century had 15 transits of Mercury and the 21st century will have 14, the two most recent occuring on 15…
Keck adaptive optics observations of TW Hydrae Association members
Bruce Macintosh, Claire Max, Ben Zuckerman +7
Adaptive optics (AO) on 8-10 m telescopes is an enormously powerful tool for studying young nearby stars. It is especially useful for searching for companions. Using AO on the 10-m…
Finding Brown Dwarf Companions with HST/NICMOS
P. J. Lowrance, E. E. Becklin, G. Schneider +2
We present the results of a HST/NICMOS coronagraphic survey for the direct detection of substellar companions within the young TW Hydrae and Tucana Associations. At the distance of…
NICMOS Observations of the Hubble Deep Field: Observations, Data Reduction, and Galaxy Photometry
Rodger I. Thompson, Lisa J. Storrie-Lombardi, Ray J. Weymann +4
This paper contains a catlog of sources observed in a portion of the Hubble Deep Field by the NICMOS instrument. Methods of observation and data analysis are discussed. The catalog…