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Automated search for supernovae

Description: This thesis describes the design, development, and testing of a search system for supernovae, based on the use of current computer and detector technology. This search uses a computer-controlled telescope and charge coupled device (CCD) detector to collect images of hundreds of galaxies per night of observation, and a dedicated minicomputer to process these images in real time. The system is now collecting test images of up to several hundred fields per night, with a sensitivity corresponding t… more
Date: November 15, 1984
Creator: Kare, J.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ground-to-orbit laser propulsion: Advanced applications

Description: Laser propulsion uses a large fixed laser to supply energy to heat an inert propellant in a rocket thruster. Such a system has two potential advantages: extreme simplicity of the thruster, and potentially high performance -- particularly high exhaust velocity. By taking advantage of the simplicity of the thruster, it should be possible to launch small (10--1000 kg) payloads to orbit using roughly 1 MW of average laser power per kg of payload. The incremental cost of such launches would be of or… more
Date: January 1, 1990
Creator: Kare, J.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Preliminary demonstration of power beaming with non-coherent laser diode arrays

Description: A preliminary demonstration of free-space electric power transmission has been conducted using non-coherent laser diode arrays as the transmitter and standard silicon photovoltaic cell arrays as the receiver. The transmitter assembly used a high-power-density array of infrared laser diode bars, water cooled via integrated microchannel heat sinks and focused by cylindrical microlenses. The diode array composite beam was refocused by a parabolic mirror over a 10 meter path, and received on a {app… more
Date: February 26, 1999
Creator: Kare, J T; Militsky, F & Weisberg, A
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Berkeley automated supernova search

Description: The Berkeley automated supernova search employs a computer controlled 36-inch telescope and charge coupled device (CCD) detector to image 2500 galaxies per night. A dedicated minicomputer compares each galaxy image with stored reference data to identify supernovae in real time. The threshold for detection is m/sub v/ = 18.8. We plan to monitor roughly 500 galaxies in Virgo and closer every night, and an additional 6000 galaxies out to 70 Mpc on a three night cycle. This should yield very early … more
Date: January 1, 1981
Creator: Kare, J. T.; Pennypacker, C. R.; Muller, R. A.; Mast, T. S.; Crawford, F. S. & Burns, M. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Water rocket - Electrolysis propulsion and fuel cell power

Description: Water Rocket is the collective name for an integrated set of technologies that offer new options for spacecraft propulsion, power, energy storage, and structure. Low pressure water stored on the spacecraft is electrolyzed to generate, separate, and pressurize gaseous hydrogen and oxygen. These gases, stored in lightweight pressure tanks, can be burned to generate thrust or recombined to produce electric power. As a rocket propulsion system, Water Rocket provides the highest feasible chemical sp… more
Date: July 24, 1999
Creator: Carter, P. H.; Dittman, M. D.; Kare, J. T.; Militsky, F.; Myers, B. & Weisberg, A. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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