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- Herzberg Institute of AstrophysicsCA20 papers
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5 papers · 1 filter
Adaptation of the Modified Adiabatic Approximation to Strong Field Ionization
Denys I. Bondar, Wing-Ki Liu, Gennady L. Yudin
Savichev's modified adiabatic approximation [Sov. Phys. JETP 73, 803 (1991)] is used to obtain a general form of a quantum-mechanical amplitude of ionization by a low-frequency las…
The ACS Nearby Galaxy Survey Treasury
Julianne J. Dalcanton, Benjamin F. Williams, Anil C. Seth +24
The ACS Nearby Galaxy Survey Treasury (ANGST) is a systematic survey to establish a legacy of uniform multi-color photometry of resolved stars for a volume-limited sample of nearby…
Frequency and properties of bars in cluster and field galaxies at intermediate redshifts
Fabio D. Barazza, Pascale Jablonka, Vandana Desai +15
We present a study of large-scale bars in field and cluster environments out to redshifts of ~0.8 using a final sample of 945 moderately inclined disk galaxies drawn from the EDisC…
HST/NICMOS detection of HR 8799 b in 1998
David Lafrenière, Christian Marois, René Doyon +1
Three planets have been directly imaged around the young star HR 8799. The planets are 5-13 Mjup and orbit the star at projected separations of 24-68 AU. While the initial detectio…
Laser cooling with a modified optical shaker
Louis Marmet
Some practical improvements are proposed for the "optical-shaker" laser-cooling technique [I.S. Averbukh and Y. Prior, Phys. Rev. Lett. 94, 153002 (2005)]. The improved technique r…