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- Herzberg Institute of AstrophysicsCA876 papers
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41 papers · 1 filter
A search for gravitational lensing in 38 X-ray selected clusters of galaxies
G. A. Luppino, I. M. Gioia, F. Hammer +2
We present the results of a CCD imaging survey for gravitational lensing in a sample of 38 X-ray-selected clusters of galaxies. Our sample consists of the most X-ray luminous (Lx>=…
Magellanic Cloud X-ray Sources: III. Completion of a ROSAT Survey
P. C. Schmidtke, A. P. Cowley, J. D. Crane +4
This paper concludes a series of three papers presenting ROSAT High-Resolution Imager (HRI) observations of unidentified Einstein and serendipitous ROSAT X-ray sources in the direc…
Radio polarimetric imaging of the interstellar medium: magnetic field and diffuse ionized gas structure near the W3/W4/W5/HB3 complex
A. D. Gray, T. L. Landecker, P. E. Dewdney +3
We have used polarimetric imaging to study the magneto-ionic medium of the Galaxy, obtaining 1420 MHz images with an angular resolution of 1' over more than 40 square-degrees of sk…
QSO hosts and environments at z=0.9 to 4.2: JHK images with adaptive optics
J. B. Hutchings, D. Crampton, S. L. Morris +2
We have observed nine QSOs with redshifts 0.85 to 4.16 at near-IR wavelengths with the adaptive optics bonnette of the Canada-France-Hawaii telescope. Exposure times ranged from 15…
High Angular Resolution JHK Imaging of the Centers of the Metal-Poor Globular Clusters NGC5272 (M3), NGC6205 (M13), NGC6287, and NGC6341 (M92)
T. J. Davidge, S. Courteau
The Canada-France-Hawaii Telescope (CFHT) Adaptive Optics Bonnette (AOB) has been used to obtain high angular resolution JHK images of the centers of the metal-poor globular cluste…
Deep Galaxy survey at 6.75 micron with the ISO satellite
H. Flores, F. Hammer, F. X. Désert +8
Deep 6.75um mid-IR ISOCAM observations were obtained of the Canada-France Redshift Survey (CFRS) 1415+52 field with the Infrared Space Observatory. The identification of the source…