File:800crab-ko.png
Jump to navigation
Jump to search
Size of this preview: 776 × 599 pixels. Other resolutions: 311 × 240 pixels | 622 × 480 pixels | 879 × 679 pixels.
Original file (879 × 679 pixels, file size: 263 KB, MIME type: image/png)
Captions
Captions
Add a one-line explanation of what this file represents
Summary[edit]
| Description |
English: The High Energy Focusing Telescope (HEFT) is a balloon-borne instrument carrying one of the first focusing telescopes for the hard X-ray band (20–70 keV). It makes use of tungsten-silicon multilayer coatings to extend the reflectivity of nested grazing-incidence mirrors beyond 10 keV. HEFT has an angular resolution of 1.5 arcminutes in half-power diameter, and an energy resolution of 1.0 keV full width at half maximum at 60 keV. HEFT was launched for a 25-hour balloon flight on May 2005. The instrument performed within specification, and observed Cyg X-1, the Crab Nebula.
한국어: 이 파일의 영어 버전이 있습니다: File:800crab.png. |
| Date | |
| Source | High Energy Focusing Telescope (HEFT), NASA's Scientific Ballooning Program |
| Author | CM Hubert Chen, Fiona A. Harrison, Principal Investigator, Caltech Charles J. Hailey, Columbia Principal, Columbia, Finn E. Christensen, DSRI Principal, DSRI, William W. Craig, Optics Scientist, LLNL, Stephen M. Schindler, Project Manager, Caltech |
Licensing[edit]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:43, 12 September 2017 | | 879 × 679 (263 KB) | Discobus430 (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
File usage on other wikis
The following other wikis use this file:
- Usage on ko.wikipedia.org
