Asteroid phase curves from ATLAS dual-band photometry

Asteroid Models from the Pan-STARRS Photometry

We present simulations on the asteroid photometric data that will be provided by the PanSTARRS (Panoramic Survey Telescope and Rapid Response System). The simulations were performed using realistic shape and light-scattering models, random orientation of spin axes, and rotation periods in the range 2–24 h. We show that physical models of asteroids can be reconstructed from this data with some l...

Spectro-photometry of Dynamically Assocaited Asteroid Pairs

Hst Photometry and Surface Mapping of Asteroid

Astronomy, University of Maryland, College Park MD 20742, ([email protected]), Joel Wm. Parker, Eliot F. Young, Dept. of Space Studies, SwRI, Boulder CO 80302, Peter. C. Thomas, Center for Radiophysics and Space Research, Cornell University, Ithaca NY 14853, Christopher T. Russell, IGPP & ESS, UCLA, Los Angeles CA 90095, S. Alan Stern, Dept. of Space Studies, SwRI, Boulder CO 80302, Mark V. Sy...

A New Design of Dual Band Phase Shifter using MEMS Technology

Abstract - This paper presents a new design of microwave microelectromechanical systems (MEMS) phase shifter for dual band wireless local area network (WLAN) applications. A bit is designed which product a constant phase shift of 11.25° by switching between two line that consist of 12 and 6 unitcells in each frequency band. A unitcell is constructed by gold membrane suspended over the coplanar ...

Removing Degeneracy of Microlensing Light Curves Through Narrow-Band Photometry of Giants

The standard light curve of a microlensing event provides only two constraints on the six unknown parameters of the lens. We show that narrow{band photometry during a microlensing event of a giant star can in addition determine the angular radius of the Einstein ring and the proper motion of the lens. This possibility results from the fact that the extended atmospheres of giants emit the cores ...