| HAL: hal-00199694, version 1 |
| ADS Bibliographic id: 2007A&A...464....1P |
| DOI: 10.1051/0004-6361:20066496 |
| Detailed view | Export this paper |
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| Astronomy and Astrophysics 464 (2007) 1-12 |
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| AMBER, the near-infrared spectro-interferometric three-telescope VLTI instrument |
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| R. G. Petrov 1, 2F. Malbet 3 |
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| (2007-03) |
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| Context: Optical long-baseline interferometry is moving a crucial step forward with the advent of general-user scientific instruments that equip large aperture and hectometric baseline facilities, such as the Very Large Telescope Interferometer (VLTI). Aims: AMBER is one of the VLTI instruments that combines up to three beams with low, moderate and high spectral resolutions in order to provide milli-arcsecond spatial resolution for compact astrophysical sources in the near-infrared wavelength domain. Its main specifications are based on three key programs on young stellar objects, active galactic nuclei central regions, masses, and spectra of hot extra-solar planets. Methods: These key science goals led to scientific specifications, which were used to propose and then validate the instrument concept. AMBER uses single-mode fibers to filter the entrance signal and to reach highly accurate, multiaxial three-beam combination, yielding three baselines and a closure phase, three spectral dispersive elements, and specific self-calibration procedures. Results: The AMBER measurements yield spectrally dispersed calibrated visibilities, color-differential complex visibilities, and a closure phase allows astronomers to contemplate rudimentary imaging and highly accurate visibility and phase differential measurements. AMBER was installed in 2004 at the Paranal Observatory. We describe here the present implementation of the instrument in the configuration with which the astronomical community can access it. Conclusions: .After two years of commissioning tests and preliminary observations, AMBER has produced its first refereed publications, allowing assessment of its scientific potential. |
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| 1: | Laboratoire Universitaire d'Astrophysique de Nice (LUAN) |
| Université Nice Sophia Antipolis [UNS] – CNRS : UMR6525 – INSU | |
| 2: | Université Nice Sophia Antipolis (UNS) |
| Université Nice Sophia Antipolis [UNS] – PRES Euro-Méditerranéen | |
| 3: | Laboratoire d'Astrophysique de Grenoble (LAOG) |
| CNRS : UMR5571 – OSUG – INSU – Université Joseph Fourier - Grenoble I | |
| 4: | Max-Planck Institut für Radioastronomie (MPIFR) |
| Max-Planck-Institut | |
| 5: | Laboratoire Gemini (LG) |
| CNRS : UMR6203 – Observatoire de la Côte d'Azur – INSU | |
| 6: | Département Fresnel (FRESNEL) |
| CNRS : UMR6528 – Observatoire de la Côte d'Azur | |
| 7: | Laboratoire de Cosmologie, Astrophysique Stellaire & Solaire, de Planétologie et de Mécanique des Fluides (CASSIOPEE) |
| Université Nice Sophia Antipolis [UNS] – CNRS : UMR6202 – Observatoire de la Côte d'Azur – INSU | |
| 8: | Osservatorio Astrofisico di Arcetri (OAA) |
| INAF | |
| 9: | Max-Planck-Institut für Radioastronomie (MPIFR) |
| Max-Planck-Institut | |
| 10: | European Southern Observatory (ESO) |
| ESO | |
| 11: | Laboratoire Universitaire d'Astrophysique de Nice |
| Université Nice Sophia Antipolis [UNS] | |
| 12: | Osservatorio astrofisico di Arcetri (OAA) |
| Aucune | |
| 13: | Osservatorio Astrofisico di Arcetri (OAA) |
| Istituto Nazionale di Astrofisica | |
| 14: | Département de Mécanique des fluides et énergétique (ONERA - MFE) |
| ONERA | |
| 15: | Observatoire de la Cote d'Azur (OCA) |
| CNRS : UMS2202 | |
| 16: | Canada France Hawaii Telescope Corporation (CFHT) |
| CNRS – National Research Council – University of Hawaii | |
| 17: | Centre de Recherche Astrophysique de Lyon (CRAL) |
| CNRS : UMR5574 – INSU – Université Claude Bernard - Lyon I – École Normale Supérieure - Lyon | |
| 18: | Association EURATOM-CEA (CEA/DSM/DRFC) |
| CEA | |
| 19: | Division technique INSU/SDU (DTI) |
| INSU – CNRS : UPS855 | |
| 20: | Laboratoire Astrophysique de Toulouse-Tarbes (LATT) |
| CNRS : UMR5572 – INSU – Observatoire Midi-Pyrénées – Université Paul Sabatier [UPS] - Toulouse III | |
| 21: | XLIM (XLIM) |
| CNRS : UMR6172 – Université de Limoges | |
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| PHOTONIQUE |
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| Subject | : | Physics/Astrophysics/Cosmology and Extra-Galactic Astrophysics Sciences of the Universe/Astrophysics/Cosmology and Extra-Galactic Astrophysics |
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| instrumentation: high angular resolution – techniques: – interferometric – techniques: spectroscopic |
| hal-00199694, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00199694 | |
| oai:hal.archives-ouvertes.fr:hal-00199694 | |
| From: Didier Fraix-Burnet | |
| Submitted on: Wednesday, 19 December 2007 12:22:23 | |
| Updated on: Tuesday, 8 November 2011 11:09:34 | |