Zobrazeno 1 - 10
of 142
pro vyhledávání: '"J.R.P. Angel"'
Publikováno v:
Symposium - International Astronomical Union. 158:167-170
We propose an optimized design for the redeployment of the Multiple Mirror Telescope (MMT) primary optics as a 25 m Adaptive Steerable Imaging Array (ASIA) providing direct focal plane image formation. The design incorporates concepts of active teles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e08fd95af94d422b66c6c83bff10b0f
https://doi.org/10.1017/s0074180900107491
https://doi.org/10.1017/s0074180900107491
Publikováno v:
Adaptive Optics.
One of the questions which has endured for as long as man has looked at the heavens is ”Are we alone?”. Are there beings on other planets who are also looking into the heavens? The first requirement for alien life similar to our own is that there
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::182fec57ec71dce47341843aa383df18
https://doi.org/10.1364/adop.1996.atub.3
https://doi.org/10.1364/adop.1996.atub.3
Autor:
J. Ge, B. Jacobsen, J.R.P. Angel, N. Woolfv, J. H. Black, M. Lloyd-Hart, P. Gray, R. Q. Fugate
Publikováno v:
Adaptive Optics.
A prototype optical wavelength ultrahigh resolution echelle cross-dispersed spectrograph has been tested at the Starfire Optical Range (SOR) 1.5 m telescope (Woolf et al. 1995; Ge et al. 1996). To our knowledge this is the first high resolution spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e453d454cdead6f21db419368eb16311
https://doi.org/10.1364/adop.1996.atub.5
https://doi.org/10.1364/adop.1996.atub.5
Publikováno v:
Adaptive Optics.
High resolution spectroscopy of stars has been rarely used because at visible wavelengths, the atmosphere produces a star image typically 10-20 times the diffraction limit of the telescope. Either the grating must be used at a far poorer resolution t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab0fe6947f6dea234e1f5f2bad78ec42
https://doi.org/10.1364/adop.1995.wa5
https://doi.org/10.1364/adop.1995.wa5
Autor:
N. Woolf, J.R.P. Angel
Publikováno v:
Adaptive Optics.
Thermal emission from "planetary" discs is known in other stars such as β Pictoris. The emission, discovered by the IRAS satellite, is comparable in strength to that from the star itself at 60 µm wavelength, indicating a large quantity of material
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1e735db99b64c37a7b5af5d9b217cf0
https://doi.org/10.1364/adop.1995.tua4
https://doi.org/10.1364/adop.1995.tua4
Autor:
Donald G. Bruns, Todd K. Barrett, David G. Sandler, H.M. Martin, Guido Brusa, Dave Modisett, J.R.P. Angel, Roberto Biasi, Daniele Gailieni, Piero Salinari
Publikováno v:
Adaptive Optics.
The new 6.5 m single mirror Multiple Mirror Telescope (MMT) will be equipped with adaptive optics capabilities. In particular, high resolution infrared astronomy will use a new adaptive secondary on a regular basis. Before we design the adaptive seco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8c6abe6048804a1ac59e2e57252ee03c
https://doi.org/10.1364/adop.1995.tua35
https://doi.org/10.1364/adop.1995.tua35
Akademický článek
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Akademický článek
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Publikováno v:
International Astronomical Union Colloquium. 67:33-36
The case for making large mirrors for astronomy with borosilicate glass honeycomb structure has been made in an earlier paper (Angel and Hill, 1981). Honeycomb structure gives rigidity in a lightweight mirror as well as low thermal inertia. Mirrors w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75cc904cc4fa66f0a05cb33040d320a5
https://doi.org/10.1017/s0252921100083317
https://doi.org/10.1017/s0252921100083317
Autor:
J.R.P. Angel
Publikováno v:
International Astronomical Union Colloquium. 78:549-562
The full potential of the next generation of larger telescopes will be realized only if they have well instrumented large fields of view. Scientific problems for which very large ground-based optical telescopes will be of most value often will need s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a030cfa4fd64b81fe7f7cf82cc92649
https://doi.org/10.1017/s0252921100107171
https://doi.org/10.1017/s0252921100107171