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Axtar: mission design concept
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Miernik, Janie H. Levine, Alan M. Strohmayer, Tod E. Hopkins, Randall C. Wilson-Hodge, Colleen A. DeGeronimo, Gianluigi Philips, Bernard F. Wolff, Michael T. Remillard, Ronald A. Chakrabarty, Deepto Johnson Sr., Les Wood, Kent S. Capizzo, Peter Gwon, Chul S. Thomas, Dan Maples, C. Dauphne Fabisinski, Leo Ray, Paul S. Briggs, Michael S. Hornsby, Linda S. |
| Copyright Year | 2010 |
| Description | The Advanced X-ray Timing Array (AXTAR) is a mission concept for X-ray timing of compact objects that combines very large collecting area, broadband spectral coverage, high time resolution, highly flexible scheduling, and an ability to respond promptly to time-critical targets of opportunity. It is optimized for sub-millisecond timing of bright Galactic X-ray sources in order to study phenomena at the natural time scales of neutron star surfaces and black hole event horizons, thus probing the physics of ultra-dense matter, strongly curved spacetimes, and intense magnetic fields. AXTAR s main instrument, the Large Area Timing Array (LATA) is a collimated instrument with 2 50 keV coverage and over 3 square meters effective area. The LATA is made up of an array of super-modules that house 2-mm thick silicon pixel detectors. AXTAR will provide a significant improvement in effective area (a factor of 7 at 4 keV and a factor of 36 at 30 keV) over the RXTE PCA. AXTAR will also carry a sensitive Sky Monitor (SM) that acts as a trigger for pointed observations of X-ray transients in addition to providing high duty cycle monitoring of the X-ray sky. We review the science goals and technical concept for AXTAR and present results from a preliminary mission design study |
| File Size | 1664772 |
| Page Count | 19 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20100033106 |
| Archival Resource Key | ark:/13960/t43r5v915 |
| Language | English |
| Publisher Date | 2010-06-28 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Time Dependence Neutron Stars Broadband Spectral Resolution Modules Mission Planning Targets X Ray Timing Explorer Magnetic Fields X Ray Sources Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
