Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Andre Blecha"'
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2005, 428, pp.741
Astronomy and Astrophysics-A&A, 2005, 428, pp.741
Astronomy and Astrophysics-A&A, EDP Sciences, 2005, 428, pp.741
Astronomy and Astrophysics-A&A, 2005, 428, pp.741
The F5 subgiant Procyon A (alpha CMi, HR 2943) was observed with the Coralie fiber-fed echelle spectrograph on the 1.2-m Swiss telescope at La Silla in February 1999. The resulting 908 high-accuracy radial velocities exhibit a mean noise level in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4eeb64c3f0e7c6610dd538653c3da703
Autor:
G. Burki, C. Maire, Martin Groenewegen, Hans Van Winckel, L. Weber, G. Davignon, Fabien Carrier, Gert Raskin, Andre Blecha
Publikováno v:
SPIE Proceedings.
In this paper we present the development of a CCD imager for the modern 1.2m MERCATOR telescope dedicated to long term monitoring of variable astrophysical phenomena. This instrument is a result of the collaboration of the Observatory of Geneva with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9912007003141cbeba1324dada44cd8
https://doi.org/10.1117/12.550773
https://doi.org/10.1117/12.550773
Autor:
Sebastien Baratchart, Andre Blecha, Laurent Chemin, V. Cayatte, Pierre North, Ralf Palsa, F. Royer, Gilles Simond
Publikováno v:
Proceedings of SPIE, Astronomical Data Analysis II
We describe briefly the Data-Reduction of the VLT fiber-fed multi-object GIRAFFE spectrograph - part of the VLT FLAMES facility. We focus on specific features of GIRAFFE - the simultaneous wavelength calibration - and their impact on the data-reducti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75d955a7dbcd22cacd7a3036e8688fa1
https://doi.org/10.1117/12.460552
https://doi.org/10.1117/12.460552
Publikováno v:
SPIE Proceedings.
A brief overview is given of the data-reduction software (DRS) being developed at Geneva and Paris Observatories for the fiber-fed multi-object GIRAFFE spectrograph - part of the VLT FLAMES facility. The specific aspects of each of three modes is pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cb23a6f7fb0c28ff8080faccac9d96a
https://doi.org/10.1117/12.395507
https://doi.org/10.1117/12.395507
Autor:
Gilles Simond, Andre Blecha, L. Weber, G. Davignon, Giovanni B. Russiniello, Charles Maire, Didier Queloz
Publikováno v:
Advanced Telescope and Instrumentation Control Software.
A Ritchey-Chretien 1.2 m telescope (EULER) and the High- Resolution echelle Spectrograph (CORALIE), a new Swiss observing facility at ESO La Silla Observatory, are operational and since Summer 1998. The Observatory operation is fully automated and su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f251458e97068a2f795509fb0764276
https://doi.org/10.1117/12.388420
https://doi.org/10.1117/12.388420
Autor:
Thierry J.-L. Courvoisier, E. Ian Robson, Kevin Krisciunas, Patrice Bouchet, Andre Blecha, Hugo E. Schwarz, David H. Hughes
Publikováno v:
Nature. 335:330-333
The magnitude and timescale of variations in the luminosity of quasars provide crucial constraints on the mechanism of emission and the physical size of the emitting region. We have observed variations by a factor of two in the infrared flux from the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69bf3efafe338ce6707c4c19258f3313
https://doi.org/10.1038/335330a0
https://doi.org/10.1038/335330a0
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Conference
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