Academic literature on the topic 'Very Large Telescope Interferometer'
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Journal articles on the topic "Very Large Telescope Interferometer"
Schöller, M. "The Very Large Telescope Interferometer." EAS Publications Series 28 (2008): 1–8. http://dx.doi.org/10.1051/eas:0828001.
Full textLévêque, Samuel, Bertrand Koehler, and Oskar von der Lühe. "Longitudinal dispersion compensation for the Very Large Telescope Interferometer." Astrophysics and Space Science 239, no. 2 (September 1996): 305–14. http://dx.doi.org/10.1007/bf00645784.
Full textSchöller, Markus. "The Very Large Telescope Interferometer: Current facility and prospects." New Astronomy Reviews 51, no. 8-9 (October 2007): 628–38. http://dx.doi.org/10.1016/j.newar.2007.06.008.
Full textBedding, T. R., J. M. Beckers, M. Faucherre, N. Hubin, B. Koehler, O. von der Lühe, F. Merkle, and N. Zhu. "The VLT Interferometer." Symposium - International Astronomical Union 158 (1994): 143–50. http://dx.doi.org/10.1017/s0074180900107454.
Full textWoillez, J., J. A. Abad, R. Abuter, E. Aller Carpentier, J. Alonso, L. Andolfato, P. Barriga, et al. "NAOMI: the adaptive optics system of the Auxiliary Telescopes of the VLTI." Astronomy & Astrophysics 629 (September 2019): A41. http://dx.doi.org/10.1051/0004-6361/201935890.
Full textRichichi, A. "The VLT Interferometer." Proceedings of the International Astronomical Union 3, S248 (October 2007): 44–47. http://dx.doi.org/10.1017/s1743921308018607.
Full textAbuter, R., M. Accardo, A. Amorim, N. Anugu, G. Ávila, N. Azouaoui, M. Benisty, et al. "First light for GRAVITY: Phase referencing optical interferometry for the Very Large Telescope Interferometer." Astronomy & Astrophysics 602 (June 2017): A94. http://dx.doi.org/10.1051/0004-6361/201730838.
Full textKol'tso, N. E., S. A. Grenkov, and L. V. Fedotov. "Comparison of Radio Interferometers with Analog and Digital Extraction of Recorded Signal." Journal of the Russian Universities. Radioelectronics 23, no. 2 (April 28, 2020): 6–18. http://dx.doi.org/10.32603/1993-8985-2020-23-2-6-18.
Full textMerkle, Fritz. "Interferometry with the European Very Large Telescope." Optics News 14, no. 3 (March 1, 1988): 15. http://dx.doi.org/10.1364/on.14.3.000015.
Full textStee, Ph, A. Meilland, and O. L. Creevey. "Interferometry of massive stars: the next step." Proceedings of the International Astronomical Union 9, S307 (June 2014): 480–89. http://dx.doi.org/10.1017/s174392131400742x.
Full textDissertations / Theses on the topic "Very Large Telescope Interferometer"
Correia, Serge. "Haute résolution angulaire et interférométrie optique en astrophysique : applications au Large Binocular Telescope et au Very Large Telescope Interferometer." Nice, 2002. http://www.theses.fr/2002NICE5796.
Full textSchuhler, Nicolas Meyrueis Patrick. "Frequency-comb stabilized laser sources for absolute distance metrology at the very large telescope interferometer." Strasbourg : Université Louis Pasteur, 2007. http://eprints-scd-ulp.u-strasbg.fr:8080/684/01/Schuhler2006.pdf.
Full textSchuhler, Nicolas. "Frequency-comb stabilized laser sources for absolute distance metrology at the very large telescope interferometer." Université Louis Pasteur (Strasbourg) (1971-2008), 2006. https://publication-theses.unistra.fr/public/theses_doctorat/2006/SCHUHLER_Nicolas_2006.pdf.
Full textThe forthcoming instrument of the Very Large Telescope Interferometer (VLTI), called Phase-Referenced Imaging and Micro-arcsecond Astrometry facility (PRIMA), uses a laser metrology system to monitor the variations of internal path lengths. This dissertation addresses the development, integration and test of frequency stabilized laser sources for the PRIMA Metrology system (PRIMET). In the first part, we present in the context of PRIMA and the VLTI the specifications of PRIMET. We recall the basics of single-wavelength laser interferometry and introduce the problems raised by its application to PRIMET. We present the need for the absolute frequency stabilization of PRIMET laser and the interest for an upgrade of PRIMET towards absolute distance measurements. In the second part, we present our contribution to the absolute frequency stabilization of PRIMET Nd:YAG laser on a transition of iodine. We characterize the system and measure precisely its performance with a self-referenced optical frequency comb. We improve the system to reach the specifications in terms of accuracy and stability of the locking frequency. The third part addresses the upgrade of PRIMET towards absolute distance measurements by the use of two-wavelength interferometry. We propose a new concept of two-wavelength laser source frequency stabilized on an optical frequency comb. This permits the generation of an unprecedented large choice of synthetic wavelength with a relative accuracy better than 10−11 in vacuum. We validate the concept on a prototype and shows that it can be used to resolve an optical wavelength. Finally, we propose to apply this concept to the upgrade of PRIMET
Ferrari, Marc. "Optique active et grandes déformations élastiques : application à la réalisation d'un miroir à focale variable pour le Very Large Telescope Interferometer." Aix-Marseille 1, 1994. http://www.theses.fr/1994AIX11017.
Full textMuthusubramanian, Balaji [Verfasser], and Lucas [Gutachter] Labadie. "Simulations of group-delay tracking strategies in the astronomical K and L bands. For improved sensitivities at the Very Large Telescope Interferometer / Balaji Muthusubramanian ; Gutachter: Lucas Labadie." Köln : Universitäts- und Stadtbibliothek Köln, 2018. http://d-nb.info/1185067140/34.
Full textLange, Werner R., and Martin Ravensbergen. "TIME REFERENCE SYSTEM OF THE ESO VERY LARGE TELESCOPE." International Foundation for Telemetering, 1995. http://hdl.handle.net/10150/608540.
Full textThe necessity of supplying precise time information in large telemetry ground stations and astronomical observatories is very similar. Therefore the way of solving this problem as it is done in the Very Large Telescope of the European Southern Observatory can be easily adopted to telemetry stations and ranges, especially when fiber optics are used. The European Southern Observatory (ESO) is building a new observatory in Chile for the Very Large Telescope (VLT). This VLT consists of 4 telescopes, each of them has a primary mirror diameter of 8 meters. the control architecture is based on workstations and VMEbus computers. The VMEbus computers are distributed over the whole building and are using real time operating system. Since the availability of the Global Positioning System (GPS) the generation of highly accurate timing signals on remote locations without the use of expensive Cesium standards does not create problems any more. However, distribution of a timing signal to many computer with high accuracy is an issue. The accuracy of the commonly used IRIG B-code is not adequate if the requirements are in the 10 microseconds range. This paper presents the design of a timing system that is adopted to the VLT. An overview of the requirements of the Time Reference System (TRS) is given. These requirements have been defined on the basis of experiences with the timing system of the ESO NTT telescope. The hardware units are described. These are a Central Time Standard, a Time Distribution System and a VME Time Interface Module. The distribution is based on fiber optic transmission, using a simple digital modulation that outperforms the analog IRIG B modulation. The Time Interface Module in the computer does not only perform the timing signal decoding but contains also user-programmable timers that are synchronously clocked from the time source. Presently all units of the TRS have been tested and the series production of the distribution and the Time Interface Modules are in progress.
Kervella, Pierre. "Interférométrie optique avec le Very Large Telescope - Application aux étoiles Céphéides." Phd thesis, Université Paris-Diderot - Paris VII, 2001. http://tel.archives-ouvertes.fr/tel-00258928.
Full textDans une seconde partie, j'aborde l'étude des étoiles variables Céphéides par interférométrie. Ces étoiles pulsantes jouent un rôle primordial dans l'estimation des distances astronomiques depuis qu'il a été établi que leur période de variation était liée à leur luminosité intrinsèque par la célèbre relation période-luminosité. Leur observation photométrique permet donc de calculer directement leur distance. Toutefois, notre connaissance du point zéro de cette relation est encore imparfaite, car elle repose sur la mesure des distances aux Céphéides galactiques les plus proches, encore mal connues. La très haute résolution angulaire apportée par l'instrument VINCI et le VLTI permettra bientôt l'étude fine de la pulsation de ces étoiles. Par la mesure simultanée de la vitesse radiale de pulsation et de la variation du diamètre angulaire de l'étoile, il sera possible de calculer directement la distance aux Céphéides les plus proches, et donc d'étalonner la relation période-luminosité. L'enjeu de ce programme : la calibration de cette relation avec une précision de 0,01 magnitude, soit un gain d'un facteur dix par rapport à notre connaissance actuelle.
Au-delà de ce programme fondamental, je décris également les possibilités offertes par VINCI dans le domaine de l'étude des étoiles naines de la séquence principale, notamment de type solaire (avec application au couple d'étoiles Alpha Centauri A et B), et j'aborde brièvement l'étude des exoplanètes.
Rabien, Sebastian. "Wirtsgalaxien von Quasaren und der Laserleitstern für das Very Large Telescope." Diss., lmu, 2005. http://nbn-resolving.de/urn:nbn:de:bvb:19-46209.
Full textDefrère, D., P. M. Hinz, B. Mennesson, W. F. Hoffmann, R. Millan-Gabet, A. J. Skemer, V. Bailey, et al. "NULLING DATA REDUCTION AND ON-SKY PERFORMANCE OF THE LARGE BINOCULAR TELESCOPE INTERFEROMETER." IOP PUBLISHING LTD, 2016. http://hdl.handle.net/10150/621383.
Full textKim, Jihun. "Assembly of a large common mount astronomical interferometer." Thesis, The University of Arizona, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3559991.
Full textA large multi-aperture telescope has the potential to reach the diffraction limit corresponding to its baseline. To do so, Adaptive Optics (AO) and beam combination are critical to good performance. Operation as an interferometer is a complicated mode for the telescope. The system now has much tighter tolerances and is difficult to align. The alignment process needs to be planned in multiple steps, and tolerance and sensitivity analysis needs to be performed for each step. Alignment tools can be prepared based on the resolution found in the sensitivity analysis in each step.
Random fluctuation is another critical factor that reduces system performance. If noise sources near the telescope are characterized and identified, image quality can be improved by post-image processing.
Measuring the outer scale of atmosphere is also helpful for understanding the system performance. The fringe tracking method in the Large Binocular Telescope Interferometer (LBTI) system provides optical path difference (OPD) variation, and the power spectral density of the OPD variation is used to estimate the size of the outer scale. However, this method is limited by the baseline of the LBTI by 5[special characters omitted] B, where B is the baseline, and by this equation the outer scale size which is able to be estimated should be more than 125 m.
AO simulation can provide an understanding of new AO system concepts and parameter variations before they are applied to the real system. In this dissertation study, we simulated an LBTI system with structural vibration of 10 Hz and 20 Hz and with various amplitudes. From the simulation, we learned that the slower bandwidth of piston-correcting systems allows stars as faint as ~13the magnitude to be observed. If there is significant vibration on the structure, the increased bandwidth will limit the phasing stars to 10~11th magnitudes. This demonstrates the limits of the LBTI system regarding structural vibration.
An alternative phasing sensor for the LBTI system, the pseudo phasing sensor, can be used for more than 1000 m of outer scale of atmosphere. If the direct phasing sensor embedded in the LBTI system cannot be used for a very faint star, the pseudo phasing sensor, which approximately estimates the phase difference by AO wavefront sensor, can be useful for atmospheric conditions with estimated outer scale of about 1000 m.
The analyses in this dissertation provide a partial guide for developing large-scale telescopes and astronomical instruments.
Books on the topic "Very Large Telescope Interferometer"
Garcia, Paulo J. V., Andreas Glindemann, Thomas Henning, and Fabien Malbet, eds. The Very Large Telescope Interferometer Challenges for the Future. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0157-0.
Full textJoint European and National Astronomical Meeting (2002 Porto, Portugal). The very large telescope interferometer-challenges for the future: A JENAM 2002 Workshop, Porto, Portugal 3-5 September, 2002. Dordrecht: Kluwer Academic Publishers, 2003.
Find full textESO, Workshop (2005 Garching Germany). The power of optical/IR interferometry: Recent scientfic results and 2nd generation instrumentation : proceedings of the ESO Workshop held in Garching, Germany, 4-8 April 2005. Berlin: Springer, 2007.
Find full textAndrea, Richichi, and European Southern Observatory, eds. The power of optical/IR interferometry: Recent scientfic results and 2nd generation instrumentation : proceedings of the ESO Workshop held in Garching, Germany, 4-8 April 2005. Berlin: Springer, 2007.
Find full textS, D'Odorico, Swings J. -P, and European Southern Observatory, eds. Second Workshop on ESO's Very Large Telescope, Venice, 29 September-2 October 1986: Proceedings. Garching bei München, Federal Republic of Germany: European Southern Observatory, 1986.
Find full textESO Workshop (1994 Garching bei München, Germany). Science with the VLT: Poster paper supplement : an ESO workshop held 28 June - 1 July 1994, Garching bei München, Germany. [Garching bei Munchen, Germany: European Southern Observatory], 1995.
Find full textWorkshop on ESO's Very Large Telescope (2nd 1986 Venice, Italy). ESO's Very Large Telescope: Proceedings of the Workshop on ESO's Very Large Telescope held Sept. 29-Oct. 2, 1986 in Venice. Garching-bei-Munchen, Germany: European Southern Observatory, 1986.
Find full textESO, Workshop on High Resolution Spectroscopy with the VLT (1992 Garching bei München Germany). ESO Workshop on High Resolution Spectroscopy with the VLT: Garching, 11-13 February 1992 : proceedings. Garching bei München: European Southern Observatory, 1992.
Find full textESO/ST-ECF Workshop on Calibrating and Understanding HST and ESO Instruments (1995 Garching bei München, Germany). ESO/ST-ECF Workshop on Calibrating and Understanding HST and ESO Instruments: Garching, Germany, 25-28 April, 1995 : proceedings. Garching bei München, Germany: European Southern Observatory, 1995.
Find full textDeath stars, weird galaxies, and a quasar-spangled universe: The discoveries of the Very Large Array telescope. Albuquerque: University of New Mexico Press, 2006.
Find full textBook chapters on the topic "Very Large Telescope Interferometer"
Herbst, Tom. "Interferometry with the Large Binocular Telescope." In The Very Large Telescope Interferometer Challenges for the Future, 45–53. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0157-0_4.
Full textvon der Lühe, Oskar. "An Introduction to Interferometry with the ESO Very Large Telescope." In Science with the VLT Interferometer, 13–34. Berlin, Heidelberg: Springer Berlin Heidelberg, 1997. http://dx.doi.org/10.1007/978-3-540-69398-7_2.
Full textQuirrenbach, A. "Next Generation Instrumentation for the Very Large Telescope Interferometer." In The Very Large Telescope Interferometer Challenges for the Future, 277–89. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0157-0_32.
Full textMouillet, David. "Interferometry Theory Primer." In The Very Large Telescope Interferometer Challenges for the Future, 3–15. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0157-0_1.
Full textWilkin, F. P., and R. L. Akeson. "Palomar Testbed Interferometer Observations of Young Stellar Objects." In The Very Large Telescope Interferometer Challenges for the Future, 145–50. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0157-0_15.
Full textSchöller, Markus. "Optical Interferometry — A Practice Primer." In The Very Large Telescope Interferometer Challenges for the Future, 17–31. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0157-0_2.
Full textDelplancke, F., F. Derie, F. Paresce, A. Glindemann, F. Lévy, S. Lévêque, and S. Ménardi. "PRIMA for the VLTI — Science." In The Very Large Telescope Interferometer Challenges for the Future, 99–104. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0157-0_10.
Full textPercheron, Isabelle, Andrea Richichi, and Markus Wittkowski. "The VLTI Calibrators Program: Getting Ready for High Accuracy Measurements." In The Very Large Telescope Interferometer Challenges for the Future, 105–12. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0157-0_11.
Full textPascucci, Ilaria, Thomas Henning, Jürgen Steinacker, and Sebastian Wolf. "2D/3D Dust Continuum Radiative Transfer Codes to Analyze and Predict VLTI Observations." In The Very Large Telescope Interferometer Challenges for the Future, 113–18. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0157-0_12.
Full textMeisner, J. A. "Scientific and Technical Results from VINCI Using Coherent Estimation of Fringe Visibility." In The Very Large Telescope Interferometer Challenges for the Future, 119–27. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0157-0_13.
Full textConference papers on the topic "Very Large Telescope Interferometer"
Haguenauer, Pierre, Roberto Abuter, Luigi Andolfato, Jaime Alonso, Guillaume Blanchard, Jean-Philippe Berger, Pierre Bourget, et al. "The Very Large Telescope Interferometer v2012+." In SPIE Astronomical Telescopes + Instrumentation, edited by Françoise Delplancke, Jayadev K. Rajagopal, and Fabien Malbet. SPIE, 2012. http://dx.doi.org/10.1117/12.925323.
Full textHaguenauer, Pierre, Jaime Alonso, Pierre Bourget, Stephane Brillant, Philippe Gitton, Stephane Guisard, Sébastien Poupar, et al. "The very large telescope Interferometer: 2010 edition." In SPIE Astronomical Telescopes + Instrumentation. SPIE, 2010. http://dx.doi.org/10.1117/12.857070.
Full textHaguenauer, Pierre, Roberto Abuter, Jaime Alonso, Javier Argomedo, Bertrand Bauvir, Guillaume Blanchard, Henri Bonnet, et al. "The Very Large Telescope Interferometer: an update." In SPIE Astronomical Telescopes + Instrumentation. SPIE, 2008. http://dx.doi.org/10.1117/12.788209.
Full textSchöller, Markus, Javier Argomedo, Bertrand Bauvir, Leonardo Blanco-Lopez, Henri Bonnet, Stephane Brillant, Michael Cantzler, et al. "Recent progress at the Very Large Telescope Interferometer." In SPIE Astronomical Telescopes + Instrumentation, edited by John D. Monnier, Markus Schöller, and William C. Danchi. SPIE, 2006. http://dx.doi.org/10.1117/12.672231.
Full textBallester, Pascal, Alberto M. Chavan, Bill Cotton, Vincent Coude du Foresto, Andreas Glindemann, Carlos Guirao, Walter Jaffe, et al. "Data flow system for the very large telescope interferometer." In International Symposium on Optical Science and Technology, edited by Jean-Luc Starck and Fionn D. Murtagh. SPIE, 2001. http://dx.doi.org/10.1117/12.447178.
Full textSalvade, Yves, Alain Courteville, and Rene Daendliker. "Absolute metrology for the Very Large Telescope Interferometer (VLTI)." In Astronomical Telescopes and Instrumentation, edited by Pierre J. Lena and Andreas Quirrenbach. SPIE, 2000. http://dx.doi.org/10.1117/12.390235.
Full textFerrari, Marc, Gerard R. Lemaitre, Silvio P. Mazzanti, Oskar von der Luehe, Bernard di Biagio, Pierre Montiel, Daniel Revest, Patrice Joulie, and Jean-Francois Carre. "Highly variable curvature mirrors for the Very Large Telescope Interferometer." In 1994 Symposium on Astronomical Telescopes & Instrumentation for the 21st Century, edited by Mark A. Ealey and Fritz Merkle. SPIE, 1994. http://dx.doi.org/10.1117/12.176116.
Full textLeveque, Samuel A., Bertrand Koehler, and Oskar von der Luehe. "Optical path difference model for the Very Large Telescope Interferometer." In Optical Telescopes of Today and Tomorrow, edited by Arne L. Ardeberg. SPIE, 1997. http://dx.doi.org/10.1117/12.269082.
Full textBeckers, Jacques M. "Interferometry with ESO's Very Large Telescope." In 15th Int'l Optics in Complex Sys. Garmisch, FRG, edited by F. Lanzl, H. J. Preuss, and G. Weigelt. SPIE, 1990. http://dx.doi.org/10.1117/12.34794.
Full textvon der Luehe, Oskar, Frederic Derie, Didier Ferrand, Bertrand Koehler, Samuel A. Leveque, Francesco Paresce, and Luigi D'Arcio. "Interferometry with the ESO Very Large Telescope." In SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, edited by Natalie Clark and John D. Gonglewski. SPIE, 1995. http://dx.doi.org/10.1117/12.217366.
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