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A critical analysis of three near-infrared photometric methods of estimating distances to cataclysmic variables
Stars: novae cataclysmic variables Stars:distances parallaxes Stars:statistics
2011/10/13
A critical analysis of three methods of estimating distances to cataclysmic variables (CVs) is performed. These methods, by Ak et al., Beuermann, and Knigge, all use near-infrared (JHK or Ks) magnitud...
Estimating the parameters of the Sgr A* black hole
Black Holes Galactic Center Gravitational Lensing Strong
2010/11/11
The measurement of relativistic effects around the galactic center may allow in the near future to strongly constrain the parameters of the supermassive black hole likely present at the galactic cente...
Extracting scientific results from robotic arm support operations：A technique for estimating the density and composition of rocks on Mars
rock pushing activities Mars density
2009/6/1
This contribution presents the unique technique of using rock pushing activities to estimate the densities of rocks remotely.