| 释义 |
- Sources
- External links
{{Infobox telescope}}The Sardinia Radio Telescope (SRT) is a large, fully steerable radio telescope completed in 2011, near San Basilio, province of Cagliari in Sardinia, Italy. It is a collaboration among the Istituto di Radioastronomia di Bologna, the Cagliari Observatory (Cagliari) and the Arcetri Astrophysical Observatory (Florence). The main technical points are: - A 64-meter primary mirror with a 7.9 meter secondary;
- A Gregorian configuration with shaped surfaces
- An active surface: Primary mirror adjustable with 1116 actuators;
- 0.3–115 GHz continuous frequency coverage
- Three main focal points: Primary, Gregorian, and Beam Wave Guide
- Primary surface accuracy: ≈150 μm RMS
- Maximum antenna efficiency: ≈60 %
- Pointing accuracy (RMS): 2–5 arcsec
Sources- {{cite journal |url=http://link.aip.org/link/?PSISDG/5489/773/1 |title=Sardinia Radio Telescope: the new Italian project |display-authors=4 |author=Gavril Grueff |author2=Giovanni Alvito |author3=Roberto Ambrosini |author4=Pietro Bolli |author5=Andrea Maccaferri |author6=Giuseppe Maccaferri |author7=Marco Morsiani |last-author-amp=yes |journal=Proceedings of the SPIE |volume=5489 |issue=773 |date=2004-10-11 |publisher=SPIE |doi=10.1117/12.550332 |pages=773 }}{{dead link|date=January 2018 |bot=InternetArchiveBot |fix-attempted=yes }}
- {{cite conference |title=The 64 m Sardinia radio telescope optics design
|author=Cortes-Medellin, G.
|booktitle=Antennas and Propagation Society International Symposium, 2002. IEEE
|volume=4
|date=2002
|pages=126–139
|url=http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1016944
|doi=10.1109/APS.2002.1016944 }}External links- {{cite web |url=http://www.srt.inaf.it |title=Sardinia Radio Telescope }} Home page of the telescope.
- {{cite web |url=http://www.astro.caltech.edu/USNC-URSI-J/Ottawa_presentations/New_Telescopes_and_Observations/URSI641_Navarrini.pdf |title=Sardinia Radio Telescope: Project Status |date=July 2007 |accessdate=2008-10-23 |deadurl=yes |archiveurl=https://web.archive.org/web/20110613194259/http://www.astro.caltech.edu/USNC-URSI-J/Ottawa_presentations/New_Telescopes_and_Observations/URSI641_Navarrini.pdf |archivedate=2011-06-13 |df= }}
{{Radio-astronomy}} 2 : Radio telescopes|Sardinia |