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35 results on '"Agabi, K."'

1. The Nice Cube (Nice3) nanosatellite project

Author

Millour, F., Ottogalli, S., Maamri, M., Stibbe, A., Ferrero, F., Rolland, L., Rebeyrolle, S., Marcotto, A., Agabi, K., Beaulieu, M., Benabdesselam, M., Caillau, J. -B., Cauneau, F., Deneire, L., Mady, F., Mary, D., Memin, A., Metris, G., Pomet, J. -B., Preis, O., Staraj, R., Lachgar, E. Ait, Baltazar, D., Gao, B., Deroo, M., Gieudes, B., Jiang, M., Filho, T. Livio de Miranda Pinto, Languery, M., Petiot, O., and Thevenon, A.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

CubeSats are tiny satellites with increasing capabilities. They have been used for more than a decade by universities to train students on space technologies, in a hands-on project aiming at building, launching and operating a real satellite. Still today, one shortcoming of CubeSats is their poor ability to transmit large amounts of data to the ground. A possible way to overcome this limitation relies on optical communications. Universite Cote d'Azur is studying the feasibility of a student's CubeSat whose main goal is to transmit data with an optical link to the ground at the moderate rate of 1 kb/s (or better). In this paper, we will present the current state of the project and its future developments., Comment: 12 pages, 4 figures, proceeding from the "complex days" workshop

Published
2018

2. MOA-2010-BLG-477Lb: constraining the mass of a microlensing planet from microlensing parallax, orbital motion and detection of blended light

Author

Bachelet, E., Shin, I. -G., Han, C., Fouqué, P., Gould, A., Menzies, J. W., Beaulieu, J. -P., Bennett, D. P., Bond, I. A., Dong, Subo, Heyrovský, D., Marquette, J. B., Marshall, J., Skowron, J., Street, R. A., Sumi, T., Udalski, A., Abe, L., Agabi, K., Albrow, M. D., Allen, W., Bertin, E., Bos, M., Bramich, D. M., Chavez, J., Christie, G. W., Cole, A. A., Crouzet, N., Dieters, S., Dominik, M., Drummond, J., Greenhill, J., Guillot, T., Henderson, C. B., Hessman, F. V., Horne, K., Hundertmark, M., Johnson, J. A., Jørgensen, U. G., Kandori, R., Liebig, C., Mékarnia, D., McCormick, J., Moorhouse, D., Nagayama, T., Nataf, D., Natusch, T., Nishiyama, S., Rivet, J. -P., Sahu, K. C., Shvartzvald, Y., Thornley, G., Tomczak, A. R., Tsapras, Y., Yee, J. C., Batista, V., Bennett, C. S., Brillant, S., Caldwell, J. A. R., Cassan, A., Corrales, E., Coutures, C., Prester, D. Dominis, Donatowicz, J., Kubas, D., Martin, R., Williams, A., Zub, M., de Almeida, L. Andrade, DePoy, D. L., Gaudi, B. S., Hung, L. -W., Jablonski, F., Kaspi, S., Klein, N., Lee, C. -U., Lee, Y., Koo, J. -R., Maoz, D., Muñoz, J. A., Pogge, R. W., Polishook, D., Shporer, A., Abe, F., Botzler, C. S., Chote, P., Freeman, M., Fukui, A., Furusawa, K., Harris, P., Itow, Y., Kobara, S., Ling, C. H., Masuda, K., Matsubara, Y., Miyake, N., Ohmori, K., Ohnishi, K., Rattenbury, N. J., Saito, To., Sullivan, D. J., Suzuki, D., Sweatman, W. L., Tristram, P. J., Wada, K., Yock, P. C. M., Szymański, M. K., Soszyński, I., Kubiak, M., Poleski, R., Ulaczyk, K., Pietrzyński, G., Wyrzykowski, Ł., Kains, N., Snodgrass, C., Steele, I. A., Alsubai, K. A., Bozza, V., Browne, P., Burgdorf, M. J., Novati, S. Calchi, Dodds, P., Dreizler, S., Finet, F., Gerner, T., Hardis, S., Harpsøe, K., Hinse, T. C., Kerins, E., Mancini, L., Mathiasen, M., Penny, M. T., Proft, S., Rahvar, S., Ricci, D., Scarpetta, G., Schäfer, S., Schönebeck, F., Southworth, J., Surdej, J., and Wambsganss, J.

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

Microlensing detections of cool planets are important for the construction of an unbiased sample to estimate the frequency of planets beyond the snow line, which is where giant planets are thought to form according to the core accretion theory of planet formation. In this paper, we report the discovery of a giant planet detected from the analysis of the light curve of a high-magnification microlensing event MOA-2010-BLG-477. The measured planet-star mass ratio is $q=(2.181\pm0.004)\times 10^{-3}$ and the projected separation is $s=1.1228\pm0.0006$ in units of the Einstein radius. The angular Einstein radius is unusually large $\theta_{\rm E}=1.38\pm 0.11$ mas. Combining this measurement with constraints on the "microlens parallax" and the lens flux, we can only limit the host mass to the range $0.13

Published
2012
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3. Direct constraint on the distance of y2 Velorum from AMBER/VLTI observations

Author

Millour, F., Petrov, R. G., Chesneau, O., Bonneau, D., Dessart, L., Bechet, C., Tallon-Bosc, I., Tallon, M., Thiébaut, E., Vakili, F., Malbet, F., Mourard, D., Zins, G., Roussel, A., Robbe-Dubois, S., Puget, P., Perraut, K., Lisi, F., Coarer, E. Le, Lagarde, S., Kern, P., Glück, L., Duvert, G., Chelli, A., Bresson, Y., Beckmann, U., Antonelli, P., Weigelt, G., Ventura, N., Vannier, M., Valtier, J. -C., Testi, L., Tatulli, E., Tasso, D., Stefanini, P., Stee, P., Solscheid, W., Schertl, D., Salinari, P., Sacchettini, M., Richichi, A., Reynaud, F., Rebattu, S., Rabbia, Y., Preibisch, T., Perrier, C., Pacini, F., Ohnaka, K., Nussbaum, E., Mouillet, D., Monin, J. -L., Mège, P., Mathias, P., Martinot-Lagarde, G., Mars, G., Marconi, A., Magnard, Y., Lopez, B., Contel, D. Le, Contel, J. -M. Le, Kraus, S., Kamm, D., Hofmann, K. -H., Utrera, O. Hernandez, Heininger, M., Heiden, M., Gil, C., Giani, E., Glentzlin, A., Gennari, S., Gallardo, A., Fraix-Burnet, D., Foy, R., Fossat, E., Forveille, T., Ferruzzi, D., Feautrier, P., Dugué, M., Driebe, T., De Souza, A. Domiciano, Delboulbé, A., Connot, C., Colin, J., Clausse, J. -M., Cassaing, F., Busoni, S., Bonhomme, S., Blöcker, T., Behrend, J., Baffa, C., Aristidi, E., Arezki, B., Agabi, K., Acke, B., Accardo, M., Kiekebusch, M., Rantakyrö, F., and Schoeller, Markus

Subjects
Astrophysics
Abstract

In this work, we present the first AMBER observations, of the Wolf-Rayet and O (WR+O) star binary system y2 Velorum. The AMBER instrument was used with the telescopes UT2, UT3, and UT4 on baselines ranging from 46m to 85m. It delivered spectrally dispersed visibilities, as well as differential and closure phases, with a resolution R = 1500 in the spectral band 1.95-2.17 micron. We interpret these data in the context of a binary system with unresolved components, neglecting in a first approximation the wind-wind collision zone flux contribution. We show that the AMBER observables result primarily from the contribution of the individual components of the WR+O binary system. We discuss several interpretations of the residuals, and speculate on the detection of an additional continuum component, originating from the free-free emission associated with the wind-wind collision zone (WWCZ), and contributing at most to the observed K-band flux at the 5% level. The expected absolute separation and position angle at the time of observations were 5.1±0.9mas and 66±15° respectively. However, we infer a separation of 3.62+0.11-0.30 mas and a position angle of 73+9-11°. Our analysis thus implies that the binary system lies at a distance of 368+38-13 pc, in agreement with recent spectrophotometric estimates, but significantly larger than the Hipparcos value of 258+41-31 pc.

Published
2006
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4. A Possible Alignment between the Orbits of Planetary Systems and their Visual Binary Companions

Author

Christian, S., Vanderburg, A., Becker, J., Yahalomi, D. A., Pearce, L., Zhou, G., Collins, K. A., Kraus, A. L., Stassun, K. G., De, Beurs, Z., Ricker, G. R., Vanderspek, R. K., Latham, D. W., Winn, J. N., Seager, S., Jenkins, J. M., Abe, L., Agabi, K., Amado, P. J., Baker, D., Barkaoui, K., Benkhaldoun, Z., Benni, P., Berberian, J., Berlind, P., Bieryla, A., Esparza-Borges, E., Bowen, M., Brown, P., Buchhave, L. A., Burke, C. J., Buttu, M., Cadieux, C., Caldwell, D. A., Charbonneau, D., Chazov, N., Chimaladinne, S., Collins, K. I., Combs, D., Conti, D. M., Crouzet, N., De Leon, J. P., Deljookorani, S., Diamond, B., Doyon, R., Dragomir, D., Dransfield, G., Essack, Z., Evans, P., Fukui, A., Gan, T., Esquerdo, G. A., Gillon, M., Girardin, E., Guerra, P., Guillot, T., K. , Habich, E. K., Henriksen, A., Hoch, N., Isogai, K. I., Jehin, E., Jensen, E. L. N., Johnson, M. C., Livingston, J. H., Kielkopf, J. F., Kim, K., Kawauchi, K., Krushinsky, V., Kunzle, V., Laloum, D., Leger, D., Lewin, P., Mallia, F., Massey, B., Mori, M., McLeod, K. K., Mékarnia, D., Mireles, I., Mishevskiy, N., Tamura, M., Murgas, F., Narita, N., Naves, R., Nelson, P., Osborn, H. P., Palle, E., Parviainen, H., Plavchan, P., Pozuelos, F. J., Rabus, M., Relles, H. M., Rodríguez, López, C., Quinn, S. N., Schmider, F. -X., Schlieder, J. E., Schwarz, R. P., Shporer, A., Sibbald, L., Srdoc, G., Stibbards, C., Stickler, H., Suarez, O., Stockdale, C., Tan, T. -G., Terada, Y., Triaud, A., Tronsgaard, R., Waalkes, W. C., Wang, G., Watanabe, N., Wenceslas, M. -S., Wingham, G., Wittrock, J., Ziegler, C., Christian, S., Vanderburg, A., Becker, J., Yahalomi, D. A., Pearce, L., Zhou, G., Collins, K. A., Kraus, A. L., Stassun, K. G., De, Beurs, Z., Ricker, G. R., Vanderspek, R. K., Latham, D. W., Winn, J. N., Seager, S., Jenkins, J. M., Abe, L., Agabi, K., Amado, P. J., Baker, D., Barkaoui, K., Benkhaldoun, Z., Benni, P., Berberian, J., Berlind, P., Bieryla, A., Esparza-Borges, E., Bowen, M., Brown, P., Buchhave, L. A., Burke, C. J., Buttu, M., Cadieux, C., Caldwell, D. A., Charbonneau, D., Chazov, N., Chimaladinne, S., Collins, K. I., Combs, D., Conti, D. M., Crouzet, N., De Leon, J. P., Deljookorani, S., Diamond, B., Doyon, R., Dragomir, D., Dransfield, G., Essack, Z., Evans, P., Fukui, A., Gan, T., Esquerdo, G. A., Gillon, M., Girardin, E., Guerra, P., Guillot, T., K. , Habich, E. K., Henriksen, A., Hoch, N., Isogai, K. I., Jehin, E., Jensen, E. L. N., Johnson, M. C., Livingston, J. H., Kielkopf, J. F., Kim, K., Kawauchi, K., Krushinsky, V., Kunzle, V., Laloum, D., Leger, D., Lewin, P., Mallia, F., Massey, B., Mori, M., McLeod, K. K., Mékarnia, D., Mireles, I., Mishevskiy, N., Tamura, M., Murgas, F., Narita, N., Naves, R., Nelson, P., Osborn, H. P., Palle, E., Parviainen, H., Plavchan, P., Pozuelos, F. J., Rabus, M., Relles, H. M., Rodríguez, López, C., Quinn, S. N., Schmider, F. -X., Schlieder, J. E., Schwarz, R. P., Shporer, A., Sibbald, L., Srdoc, G., Stibbards, C., Stickler, H., Suarez, O., Stockdale, C., Tan, T. -G., Terada, Y., Triaud, A., Tronsgaard, R., Waalkes, W. C., Wang, G., Watanabe, N., Wenceslas, M. -S., Wingham, G., Wittrock, J., and Ziegler, C.

Abstract

Astronomers do not have a complete picture of the effects of wide-binary companions (semimajor axes greater than 100 au) on the formation and evolution of exoplanets. We investigate these effects using new data from Gaia Early Data Release 3 and the Transiting Exoplanet Survey Satellite mission to characterize wide-binary systems with transiting exoplanets. We identify a sample of 67 systems of transiting exoplanet candidates (with well-determined, edge-on orbital inclinations) that reside in wide visual binary systems. We derive limits on orbital parameters for the wide-binary systems and measure the minimum difference in orbital inclination between the binary and planet orbits. We determine that there is statistically significant difference in the inclination distribution of wide-binary systems with transiting planets compared to a control sample, with the probability that the two distributions are the same being 0.0037. This implies that there is an overabundance of planets in binary systems whose orbits are aligned with those of the binary. The overabundance of aligned systems appears to primarily have semimajor axes less than 700 au. We investigate some effects that could cause the alignment and conclude that a torque caused by a misaligned binary companion on the protoplanetary disk is the most promising explanation. © 2022. The Author(s). Published by the American Astronomical Society.

Published
2022

5. ASTEP: Towards the detection and characterization of exoplanets from Dome C

Author

Rauer H., Blazit A., Valbousquet F., Schmider F.-X., Gouvret C., Fressin F., Fanteï-Caujolle Y., Rivet J.-P., Mekarnia D., Abe L., Daban J.-B., Agabi K., Guillot T., Crouzet N., Erikson A., Fruth T., Aigrain S., Pont F., and Barbieri M.

Subjects
Physics, QC1-999
Abstract

The ASTEP project (Antarctic Search for Transiting ExoPlanets), aims at testing the quality of the Dome C site in Antarctica for photometry in the visible, as well as detecting and characterizing transiting exoplanets. A dedicated telescope, ASTEP400, has been developped and installed at Concordia. The first campaign took place during the winter 2010, and the telescope functionned nominally during all the winter. A first analysis of the data leads to a precision of 189 and 205 ppm for WASP-19 and WASP-18 respectively, for continuous observations during 1 month. This shows that extremely high precision photometry is achievable from Dome C.

Published
2011
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8. An asymmetry detected in the disk of Kappa CMa with the AMBER/VLTI

Author

Meilland, Anthony, Millour, Florentin, Stee, Philippe, Domiciano De Souza, Armando, Petrov, Romain, Mourard, Denis, Jankov, Slobodan, Robbe-Dubois, Sylvie, Spang, Alain, Arisitidi, Eric, Antonelli, P., Beckmann, U., Bresson, Y., Chelli, A., Dugué, M., Duvert, G., Glück, L., Kern, P., Lagarde, S., Le Coarer, E., Lisi, F., Malbet, F., Perraut, K., Puget, P., Robbe-Dubois, S., Weigelt, G., Zins, G., Accardo, M., Acke, B., Agabi, K., Arezki, B., Altariba, E., Baffa, C., Behrend, J., Blöcker, T., Bonhomme, S., Busoni, S., Cassaing, F., Clausse, J.-M., Connot, C., Delboulbé, A., Domicinano De Souza, A., Driebe, T., Feautrier, P., Ferruzzi, D., Forveille, T., Fossat, E., Foy, R., Fraix-Burnet, D., Gallardo, A., Gennari, S., Glentzlin, A., Giani, E., Gilinst, C., Heiden, M., Heininger, M., Hernandez, O., Hofmann, K.-H., Kamm, D., Kraus, S., Le Contel, D., Le Contel, J.-M., Lopez, B., Magnard, Y., Marconi, A., Mars, G., Martinot-Lagarde, G., Mathias, P., Millour, F., Monin, J.-L., Mouillet, D., Mourard, D., Mège, P., Nussbaum, E., Ohnaka, K., Pacini, F., Perrier, C., Rabbia, Y., Rebattu, S., Reynaud, F., Richichi, A., Roussel, A., Sacchettini, M., Salinari, P., Schertl, D., Solscheid, W., Stee, P., Stefanini, P., Tallon, M., Tallon-Bosc, I., Tasso, D., Tatulli, E., Testi, L., Valtier, J.-C., Vannier, M., Ventura, N., Kiekebusch, M., Schöller, M., Laboratoire Gemini (LG), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Universitaire d'Astrophysique de Nice (LUAN), Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), and COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Stars: emission-line, Astrophysics (astro-ph), Stars: individual (kappa CMa), FOS: Physical sciences, Be, Astrophysics, Techniques: high angular resolution, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Stars: Keplerian rotation, Techniques: interferometric, Stars: circumstellar matter, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

International audience; Aims. We study the geometry and kinematics of the circumstellar environment of the Be star Kappa CMa in the Br gamma emission line and its nearby continuum. Methods. We use the VLTI/AMBER instrument operating in the K band which provides a spatial resolution of about 6 mas with a spectral resolution of 1500 to study the kinematics within the disk and to infer its rotation law. In order to obtain more kinematical constraints we also use an high spectral resolution Pa beta line profile obtain in December 2005 at the Observatorio do Pico do Dios, Brazil and we compile V/R line profile variations and spectral energy distribution data points from the literature. Results. Using differential visibilities and differential phases across the Br gamma line we detect an asymmetry in the disk. Moreover, we found that kappa CMa seems difficult to fit within the classical scenario for Be stars, illustrated recently by alpha Arae observations, i.e. a fast rotating B star close to its breakup velocity surrounded by a Keplerian circumstellar disk with an enhanced polar wind. Finally we discuss the possibility for kappa CMa to be a critical rotator with a Keplerian rotating disk and try to see if the detected asymmetry can be interpreted within the "one-armed" viscous disk framework.

Published
2006
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9. KEOPS: Kiloparsec Explorer for Optical Planet Search, a direct-imaging Optical Array at Dome C of Antarctica, in Science case for next generation interferometric facilities (the post-VLTI era)

Author

Vakili, F., Belu, A. R., Aristidi, E., Fossat, E., Maillard, A., Abe, L., Agabi, K., Vernin, J., Daban, J. B., Hertmanni, W., François-Xavier Schmider, Laboratoire Hippolyte Fizeau (FIZEAU), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, and Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)

Abstract

Proceedings of the 37th Liège International Astrophiscal Colloqium, eds. J. Surdej, D. Caro and A. Detal, 73, (2005); International audience

Published
2005

10. Disk and wind interaction in the young stellar object MWC 297 spatially resolved with VLTI/AMBER

Author

Malbet, F., Benisty, M., de Wit, W.J., Kraus, S., Meilland, A., Millour, F., Tatulli, E., Berger, J.P., Chesneau, O., Hofmann, K.H., Isella, A., Natta, A., Petrov, R., Preibisch, T., Stee, P., Testi, L., Weigelt, G., Antonelli, P., Beckmann, U., Bresson, Y., Chelli, A., Duvert, G., Glück, L., Kern, P., Lagarde, S., Le Coarer, E., Lisi, F., Perraut, K., Robbe-Dubois, S., Roussel, A., Zins, G., Accardo, M., Acke, B., Agabi, K., Arezki, B., Aristidi, E., Baffa, C., Behrend, J., Blöcker, T., Bonhomme, S., Busoni, S., Cassaing, F., Clausse, J.-M., Colin, J., Connot, C., Delboulbé, A., Driebe, T., Dugué, M., Feautrier, P., Ferruzzi, D., Forveille, T., Fossat, E., Foy, Renaud, Fraix-Burnet, D., Gallardo, A., Gennari, S., Glentzlin, A., Giani, E., Gil, C., Heiden, M., Heininger, M., Kamm, D., Le Contel, D., Le Contel, J.-M., Lopez, B., Magnard, Y., Marconi, A., Mars, G., Martinot-Lagarde, G., Mathias, P., Monin, J.-L., Mouillet, D., Mourard, D., Mège, P., Nussbaum, E., Ohnaka, K., Pacheco, J., Pacini, F., Perrier, C., Puget, P., Rabbia, Y., Rebattu, S., Reynaud, François, Richichi, A., Sacchettini, M., Salinari, P., Schertl, D., Solscheid, W., Stefanini, P., Tallon, Michel, Tallon-Bosc, Isabelle, Tasso, D., Valtier, J.-C., Vannier, M., Ventura, N., Kiekebusch, M., Rantakyrö, F., Schöller, M., Laboratoire d'Astrophysique de Grenoble (LAOG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Max-Planck-Institut für Radioastronomie (MPIFR), Laboratoire Gemini (LG), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Universitaire d'Astrophysique de Nice (LUAN), Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), INAF - Osservatorio Astrofisico di Arcetri (OAA), Istituto Nazionale di Astrofisica (INAF), ONERA - The French Aerospace Lab [Châtillon], ONERA, Centre de Recherche Astrophysique de Lyon (CRAL), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon), Division technique INSU/SDU (DTI), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), PHOTONIQUE, XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), European Southern Observatory (ESO), AMBER, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), ONERA-Université Paris Saclay (COmUE), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Université Nice Sophia Antipolis (1965 - 2019) (UNS), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Protoplanetary disks, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Pre-main-sequence stars, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Planetary systems, Early-type stars, Emission-line stars, Accretion disks, Astrophysics::Solar and Stellar Astrophysics, Astrophysics::Earth and Planetary Astrophysics, Infrared, Interferometric Techniques, Astrophysics::Galaxy Astrophysics
Abstract

The young stellar object MWC 297 has been observed with the VLT interferometer equipped with the AMBER instrument. MWC 297 has been spatially resolved in the continuum with a visibility of 0.50 as well as in the Br gamma emission line where the visibility decrease to a lower value of 0.33. This change in the visibility with the wavelength can be interpreted by the presence of an optically thick disk responsible for the visibility in the continuum and of a stellar wind traced by Br gamma and whose apparent size is 40% larger. We validate this interpretation by building a model of the stellar environment that combines a geometrically thin, optically thick accretion disk model consisting of gas and dust, and a latitude-dependent stellar wind outflowing above the disk surface. The continuum emission and visibilities obtained from this model are fully consistent with the interferometric AMBER data. They agree also with existing optical, near-infrared spectra and other broad-band near-infrared interferometric visibilities. A picture emerges in which MWC 297 is surrounded by an equatorial flat disk that is possibly still accreting and an outflowing wind which has a much higher velocity in the polar region than at the equator. [abridged], Comment: 13 pages; to be published in A&A; Acceptance day: 11/10/2005

Published
2005
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11. Time domain astronomy from Dome C: results from ASTEP

Author

Rivet, J.-P., primary, Abe, L., additional, Agabi, K., additional, Barbieri, M., additional, Crouzet, N., additional, Goncalves, I., additional, Guillot, T., additional, Mekarnia, D., additional, Szulagyi, J., additional, Daban, J.-B., additional, Gouvret, C., additional, Fantei-Caujolle, Y., additional, Schmider, F.-X., additional, Furth, T., additional, Erikson, A., additional, Rauer, H., additional, Fressin, F., additional, Alapini, A., additional, Pont, F., additional, and Aigrain, S., additional

Published
2012
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12. ASTEP: Towards the detection and characterization of exoplanets from Dome C

Author

Crouzet, N., primary, Guillot, T., additional, Agabi, K., additional, Daban, J.-B., additional, Abe, L., additional, Mekarnia, D., additional, Rivet, J.-P., additional, Fanteï-Caujolle, Y., additional, Fressin, F., additional, Gouvret, C., additional, Schmider, F.-X., additional, Valbousquet, F., additional, Blazit, A., additional, Rauer, H., additional, Erikson, A., additional, Fruth, T., additional, Aigrain, S., additional, Pont, F., additional, and Barbieri, M., additional

Published
2011
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13. Telescope and instrument robotization at Dome C

Author

Strassmeier, K. G., primary, Agabi, K., additional, Agnoletto, L., additional, Allan, A., additional, Andersen, M. I., additional, Ansorge, W., additional, Bortoletto, F., additional, Briguglio, R., additional, Buey, J.‐T., additional, Castellini, S., additional, Coudé du Foresto, V., additional, Damé, L., additional, Deeg, H. J., additional, Eiroa, C., additional, Durand, G., additional, Fappani, D., additional, Frezzotti, M., additional, Granzer, T., additional, Gröschke, A., additional, Kärcher, H. J., additional, Lenzen, R., additional, Mancini, A., additional, Montanari, C., additional, Mora, A., additional, Pierre, A., additional, Pirnay, O., additional, Roncella, F., additional, Schmider, F.‐X., additional, Steele, I., additional, Storey, J. W. V., additional, Tothill, N. F. H., additional, Travouillon, T., additional, Vittuari, L., additional, and Weber, M., additional

Published
2007
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14. Interferometric data reduction with AMBER/VLTI. Principle, estimators, and illustration

Author

Tatulli, E., primary, Millour, F., additional, Chelli, A., additional, Duvert, G., additional, Acke, B., additional, Hernandez Utrera, O., additional, Hofmann, K.-H., additional, Kraus, S., additional, Malbet, F., additional, Mège, P., additional, Petrov, R. G., additional, Vannier, M., additional, Zins, G., additional, Antonelli, P., additional, Beckmann, U., additional, Bresson, Y., additional, Dugué, M., additional, Gennari, S., additional, Glück, L., additional, Kern, P., additional, Lagarde, S., additional, Le Coarer, E., additional, Lisi, F., additional, Perraut, K., additional, Puget, P., additional, Rantakyrö, F., additional, Robbe-Dubois, S., additional, Roussel, A., additional, Weigelt, G., additional, Accardo, M., additional, Agabi, K., additional, Altariba, E., additional, Arezki, B., additional, Aristidi, E., additional, Baffa, C., additional, Behrend, J., additional, Blöcker, T., additional, Bonhomme, S., additional, Busoni, S., additional, Cassaing, F., additional, Clausse, J.-M., additional, Colin, J., additional, Connot, C., additional, Delboulbé, A., additional, Domiciano de Souza, A., additional, Driebe, T., additional, Feautrier, P., additional, Ferruzzi, D., additional, Forveille, T., additional, Fossat, E., additional, Foy, R., additional, Fraix-Burnet, D., additional, Gallardo, A., additional, Giani, E., additional, Gil, C., additional, Glentzlin, A., additional, Heiden, M., additional, Heininger, M., additional, Kamm, D., additional, Kiekebusch, M., additional, Le Contel, D., additional, Le Contel, J.-M., additional, Lesourd, T., additional, Lopez, B., additional, Lopez, M., additional, Magnard, Y., additional, Marconi, A., additional, Mars, G., additional, Martinot-Lagarde, G., additional, Mathias, P., additional, Monin, J.-L., additional, Mouillet, D., additional, Mourard, D., additional, Nussbaum, E., additional, Ohnaka, K., additional, Pacheco, J., additional, Perrier, C., additional, Rabbia, Y., additional, Rebattu, S., additional, Reynaud, F., additional, Richichi, A., additional, Robini, A., additional, Sacchettini, M., additional, Schertl, D., additional, Schöller, M., additional, Solscheid, W., additional, Spang, A., additional, Stee, P., additional, Stefanini, P., additional, Tallon, M., additional, Tallon-Bosc, I., additional, Tasso, D., additional, Testi, L., additional, Vakili, F., additional, von der Lühe, O., additional, Valtier, J.-C., additional, and Ventura, N., additional

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2007
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15. Optical configuration and analysis of the AMBER/VLTI instrument

Author

Robbe-Dubois, S., primary, Lagarde, S., additional, Petrov, R. G., additional, Lisi, F., additional, Beckmann, U., additional, Antonelli, P., additional, Bresson, Y., additional, Martinot-Lagarde, G., additional, Roussel, A., additional, Salinari, P., additional, Vannier, M., additional, Chelli, A., additional, Dugué, M., additional, Duvert, G., additional, Gennari, S., additional, Glück, L., additional, Kern, P., additional, Le Coarer, E., additional, Malbet, F., additional, Millour, F., additional, Perraut, K., additional, Puget, P., additional, Rantakyrö, F., additional, Tatulli, E., additional, Weigelt, G., additional, Zins, G., additional, Accardo, M., additional, Acke, B., additional, Agabi, K., additional, Altariba, E., additional, Arezki, B., additional, Aristidi, E., additional, Baffa, C., additional, Behrend, J., additional, Blöcker, T., additional, Bonhomme, S., additional, Busoni, S., additional, Cassaing, F., additional, Clausse, J.-M., additional, Colin, J., additional, Connot, C., additional, Delage, L., additional, Delboulbé, A., additional, Domiciano de Souza, A., additional, Driebe, T., additional, Feautrier, P., additional, Ferruzzi, D., additional, Forveille, T., additional, Fossat, E., additional, Foy, R., additional, Fraix-Burnet, D., additional, Gallardo, A., additional, Giani, E., additional, Gil, C., additional, Glentzlin, A., additional, Heiden, M., additional, Heininger, M., additional, Hernandez Utrera, O., additional, Hofmann, K.-H., additional, Kamm, D., additional, Kiekebusch, M., additional, Kraus, S., additional, Le Contel, D., additional, Le Contel, J.-M., additional, Lesourd, T., additional, Lopez, B., additional, Lopez, M., additional, Magnard, Y., additional, Marconi, A., additional, Mars, G., additional, Mathias, P., additional, Mège, P., additional, Monin, J.-L., additional, Mouillet, D., additional, Mourard, D., additional, Nussbaum, E., additional, Ohnaka, K., additional, Pacheco, J., additional, Perrier, C., additional, Rabbia, Y., additional, Rebattu, S., additional, Reynaud, F., additional, Richichi, A., additional, Robini, A., additional, Sacchettini, M., additional, Schertl, D., additional, Schöller, M., additional, Solscheid, W., additional, Spang, A., additional, Stee, P., additional, Stefanini, P., additional, Tallon, M., additional, Tallon-Bosc, I., additional, Tasso, D., additional, Testi, L., additional, Vakili, F., additional, von der Lühe, O., additional, Valtier, J.-C., additional, and Ventura, N., additional

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2007
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16. Disk and wind interaction in the young stellar object MWC 297 spatially resolved with AMBER/VLTI

Author

Malbet, F., primary, Benisty, M., additional, de Wit, W.-J., additional, Kraus, S., additional, Meilland, A., additional, Millour, F., additional, Tatulli, E., additional, Berger, J.-P., additional, Chesneau, O., additional, Hofmann, K.-H., additional, Isella, A., additional, Natta, A., additional, Petrov, R. G., additional, Preibisch, T., additional, Stee, P., additional, Testi, L., additional, Weigelt, G., additional, Antonelli, P., additional, Beckmann, U., additional, Bresson, Y., additional, Chelli, A., additional, Dugué, M., additional, Duvert, G., additional, Gennari, S., additional, Glück, L., additional, Kern, P., additional, Lagarde, S., additional, Le Coarer, E., additional, Lisi, F., additional, Perraut, K., additional, Puget, P., additional, Rantakyrö, F., additional, Robbe-Dubois, S., additional, Roussel, A., additional, Zins, G., additional, Accardo, M., additional, Acke, B., additional, Agabi, K., additional, Altariba, E., additional, Arezki, B., additional, Aristidi, E., additional, Baffa, C., additional, Behrend, J., additional, Blöcker, T., additional, Bonhomme, S., additional, Busoni, S., additional, Cassaing, F., additional, Clausse, J.-M., additional, Colin, J., additional, Connot, C., additional, Delboulbé, A., additional, Domiciano de Souza, A., additional, Driebe, T., additional, Feautrier, P., additional, Ferruzzi, D., additional, Forveille, T., additional, Fossat, E., additional, Foy, R., additional, Fraix-Burnet, D., additional, Gallardo, A., additional, Giani, E., additional, Gil, C., additional, Glentzlin, A., additional, Heiden, M., additional, Heininger, M., additional, Hernandez Utrera, O., additional, Kamm, D., additional, Kiekebusch, M., additional, Le Contel, D., additional, Le Contel, J.-M., additional, Lesourd, T., additional, Lopez, B., additional, Lopez, M., additional, Magnard, Y., additional, Marconi, A., additional, Mars, G., additional, Martinot-Lagarde, G., additional, Mathias, P., additional, Mège, P., additional, Monin, J.-L., additional, Mouillet, D., additional, Mourard, D., additional, Nussbaum, E., additional, Ohnaka, K., additional, Pacheco, J., additional, Perrier, C., additional, Rabbia, Y., additional, Rebattu, S., additional, Reynaud, F., additional, Richichi, A., additional, Robini, A., additional, Sacchettini, M., additional, Schertl, D., additional, Schöller, M., additional, Solscheid, W., additional, Spang, A., additional, Stefanini, P., additional, Tallon, M., additional, Tallon-Bosc, I., additional, Tasso, D., additional, Vakili, F., additional, von der Lühe, O., additional, Valtier, J.-C., additional, Vannier, M., additional, and Ventura, N., additional

Published
2007
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17. AMBER, the near-infrared spectro-interferometric three-telescope VLTI instrument

Author

Petrov, R. G., primary, Malbet, F., additional, Weigelt, G., additional, Antonelli, P., additional, Beckmann, U., additional, Bresson, Y., additional, Chelli, A., additional, Dugué, M., additional, Duvert, G., additional, Gennari, S., additional, Glück, L., additional, Kern, P., additional, Lagarde, S., additional, Le Coarer, E., additional, Lisi, F., additional, Millour, F., additional, Perraut, K., additional, Puget, P., additional, Rantakyrö, F., additional, Robbe-Dubois, S., additional, Roussel, A., additional, Salinari, P., additional, Tatulli, E., additional, Zins, G., additional, Accardo, M., additional, Acke, B., additional, Agabi, K., additional, Altariba, E., additional, Arezki, B., additional, Aristidi, E., additional, Baffa, C., additional, Behrend, J., additional, Blöcker, T., additional, Bonhomme, S., additional, Busoni, S., additional, Cassaing, F., additional, Clausse, J.-M., additional, Colin, J., additional, Connot, C., additional, Delboulbé, A., additional, Domiciano de Souza, A., additional, Driebe, T., additional, Feautrier, P., additional, Ferruzzi, D., additional, Forveille, T., additional, Fossat, E., additional, Foy, R., additional, Fraix-Burnet, D., additional, Gallardo, A., additional, Giani, E., additional, Gil, C., additional, Glentzlin, A., additional, Heiden, M., additional, Heininger, M., additional, Hernandez Utrera, O., additional, Hofmann, K.-H., additional, Kamm, D., additional, Kiekebusch, M., additional, Kraus, S., additional, Le Contel, D., additional, Le Contel, J.-M., additional, Lesourd, T., additional, Lopez, B., additional, Lopez, M., additional, Magnard, Y., additional, Marconi, A., additional, Mars, G., additional, Martinot-Lagarde, G., additional, Mathias, P., additional, Mège, P., additional, Monin, J.-L., additional, Mouillet, D., additional, Mourard, D., additional, Nussbaum, E., additional, Ohnaka, K., additional, Pacheco, J., additional, Perrier, C., additional, Rabbia, Y., additional, Rebattu, S., additional, Reynaud, F., additional, Richichi, A., additional, Robini, A., additional, Sacchettini, M., additional, Schertl, D., additional, Schöller, M., additional, Solscheid, W., additional, Spang, A., additional, Stee, P., additional, Stefanini, P., additional, Tallon, M., additional, Tallon-Bosc, I., additional, Tasso, D., additional, Testi, L., additional, Vakili, F., additional, von der Lühe, O., additional, Valtier, J.-C., additional, Vannier, M., additional, and Ventura, N., additional

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2007
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18. An asymmetry detected in the disk of κ Canis Majoris with AMBER/VLTI

Author

Meilland, A., primary, Millour, F., additional, Stee, P., additional, Domiciano de Souza, A., additional, Petrov, R. G., additional, Mourard, D., additional, Jankov, S., additional, Robbe-Dubois, S., additional, Spang, A., additional, Aristidi, E., additional, Antonelli, P., additional, Beckmann, U., additional, Bresson, Y., additional, Chelli, A., additional, Dugué, M., additional, Duvert, G., additional, Gennari, S., additional, Glück, L., additional, Kern, P., additional, Lagarde, S., additional, Le Coarer, E., additional, Lisi, F., additional, Malbet, F., additional, Perraut, K., additional, Puget, P., additional, Rantakyrö, F., additional, Roussel, A., additional, Tatulli, E., additional, Weigelt, G., additional, Zins, G., additional, Accardo, M., additional, Acke, B., additional, Agabi, K., additional, Altariba, E., additional, Arezki, B., additional, Baffa, C., additional, Behrend, J., additional, Blöcker, T., additional, Bonhomme, S., additional, Busoni, S., additional, Cassaing, F., additional, Clausse, J.-M., additional, Colin, J., additional, Connot, C., additional, Delboulbé, A., additional, Driebe, T., additional, Feautrier, P., additional, Ferruzzi, D., additional, Forveille, T., additional, Fossat, E., additional, Foy, R., additional, Fraix-Burnet, D., additional, Gallardo, A., additional, Giani, E., additional, Gil, C., additional, Glentzlin, A., additional, Heiden, M., additional, Heininger, M., additional, Hernandez Utrera, O., additional, Hofmann, K.-H., additional, Kamm, D., additional, Kiekebusch, M., additional, Kraus, S., additional, Le Contel, D., additional, Le Contel, J.-M., additional, Lesourd, T., additional, Lopez, B., additional, Lopez, M., additional, Magnard, Y., additional, Marconi, A., additional, Mars, G., additional, Martinot-Lagarde, G., additional, Mathias, P., additional, Mège, P., additional, Monin, J.-L., additional, Mouillet, D., additional, Nussbaum, E., additional, Ohnaka, K., additional, Pacheco, J., additional, Perrier, C., additional, Rabbia, Y., additional, Rebattu, S., additional, Reynaud, F., additional, Richichi, A., additional, Robini, A., additional, Sacchettini, M., additional, Schertl, D., additional, Schöller, M., additional, Solscheid, W., additional, Stefanini, P., additional, Tallon, M., additional, Tallon-Bosc, I., additional, Tasso, D., additional, Testi, L., additional, Vakili, F., additional, von der Lühe, O., additional, Valtier, J.-C., additional, Vannier, M., additional, and Ventura, N., additional

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2006
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19. Direct constraint on the distance of γ2 Velorum from AMBER/VLTI observations

Author

Millour, F., primary, Petrov, R. G., additional, Chesneau, O., additional, Bonneau, D., additional, Dessart, L., additional, Bechet, C., additional, Tallon-Bosc, I., additional, Tallon, M., additional, Thiébaut, E., additional, Vakili, F., additional, Malbet, F., additional, Mourard, D., additional, Antonelli, P., additional, Beckmann, U., additional, Bresson, Y., additional, Chelli, A., additional, Dugué, M., additional, Duvert, G., additional, Gennari, S., additional, Glück, L., additional, Kern, P., additional, Lagarde, S., additional, Le Coarer, E., additional, Lisi, F., additional, Perraut, K., additional, Puget, P., additional, Rantakyrö, F., additional, Robbe-Dubois, S., additional, Roussel, A., additional, Tatulli, E., additional, Weigelt, G., additional, Zins, G., additional, Accardo, M., additional, Acke, B., additional, Agabi, K., additional, Altariba, E., additional, Arezki, B., additional, Aristidi, E., additional, Baffa, C., additional, Behrend, J., additional, Blöcker, T., additional, Bonhomme, S., additional, Busoni, S., additional, Cassaing, F., additional, Clausse, J.-M., additional, Colin, J., additional, Connot, C., additional, Delboulbé, A., additional, Domiciano de Souza, A., additional, Driebe, T., additional, Feautrier, P., additional, Ferruzzi, D., additional, Forveille, T., additional, Fossat, E., additional, Foy, R., additional, Fraix-Burnet, D., additional, Gallardo, A., additional, Giani, E., additional, Gil, C., additional, Glentzlin, A., additional, Heiden, M., additional, Heininger, M., additional, Hernandez Utrera, O., additional, Hofmann, K.-H., additional, Kamm, D., additional, Kiekebusch, M., additional, Kraus, S., additional, Le Contel, D., additional, Le Contel, J.-M., additional, Lesourd, T., additional, Lopez, B., additional, Lopez, M., additional, Magnard, Y., additional, Marconi, A., additional, Mars, G., additional, Martinot-Lagarde, G., additional, Mathias, P., additional, Mège, P., additional, Monin, J.-L., additional, Mouillet, D., additional, Nussbaum, E., additional, Ohnaka, K., additional, Pacheco, J., additional, Perrier, C., additional, Rabbia, Y., additional, Rebattu, S., additional, Reynaud, F., additional, Richichi, A., additional, Robini, A., additional, Sacchettini, M., additional, Schertl, D., additional, Schöller, M., additional, Solscheid, W., additional, Spang, A., additional, Stee, P., additional, Stefanini, P., additional, Tasso, D., additional, Testi, L., additional, von der Lühe, O., additional, Valtier, J.-C., additional, Vannier, M., additional, and Ventura, N., additional

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2006
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20. Near-infrared interferometry of η Carinae with spectral resolutions of 1 500 and 12 000 using AMBER/VLTI

Author

Weigelt, G., primary, Kraus, S., additional, Driebe, T., additional, Petrov, R. G., additional, Hofmann, K.-H., additional, Millour, F., additional, Chesneau, O., additional, Schertl, D., additional, Malbet, F., additional, Hillier, D. J., additional, Gull, T., additional, Davidson, K., additional, Domiciano de Souza, A., additional, Antonelli, P., additional, Beckmann, U., additional, Bresson, Y., additional, Chelli, A., additional, Dugué, M., additional, Duvert, G., additional, Gennari, S., additional, Glück, L., additional, Kern, P., additional, Lagarde, S., additional, Le Coarer, E., additional, Lisi, F., additional, Perraut, K., additional, Puget, P., additional, Rantakyrö, F., additional, Robbe-Dubois, S., additional, Roussel, A., additional, Tatulli, E., additional, Zins, G., additional, Accardo, M., additional, Acke, B., additional, Agabi, K., additional, Altariba, E., additional, Arezki, B., additional, Aristidi, E., additional, Baffa, C., additional, Behrend, J., additional, Blöcker, T., additional, Bonhomme, S., additional, Busoni, S., additional, Cassaing, F., additional, Clausse, J.-M., additional, Colin, J., additional, Connot, C., additional, Delboulbé, A., additional, Feautrier, P., additional, Ferruzzi, D., additional, Forveille, T., additional, Fossat, E., additional, Foy, R., additional, Fraix-Burnet, D., additional, Gallardo, A., additional, Giani, E., additional, Gil, C., additional, Glentzlin, A., additional, Heiden, M., additional, Heininger, M., additional, Hernandez Utrera, O., additional, Kamm, D., additional, Kiekebusch, M., additional, Le Contel, D., additional, Le Contel, J.-M., additional, Lesourd, T., additional, Lopez, B., additional, Lopez, M., additional, Magnard, Y., additional, Marconi, A., additional, Mars, G., additional, Martinot-Lagarde, G., additional, Mathias, P., additional, Mège, P., additional, Monin, J.-L., additional, Mouillet, D., additional, Mourard, D., additional, Nussbaum, E., additional, Ohnaka, K., additional, Pacheco, J., additional, Perrier, C., additional, Rabbia, Y., additional, Rebattu, S., additional, Reynaud, F., additional, Richichi, A., additional, Robini, A., additional, Sacchettini, M., additional, Schöller, M., additional, Solscheid, W., additional, Spang, A., additional, Stee, P., additional, Stefanini, P., additional, Tallon, M., additional, Tallon-Bosc, I., additional, Tasso, D., additional, Testi, L., additional, Vakili, F., additional, von der Lühe, O., additional, Valtier, J.-C., additional, Vannier, M., additional, Ventura, N., additional, Weis, K., additional, and Wittkowski, M., additional

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2006
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21. Constraining the wind launching region in Herbig Ae stars: AMBER/VLTI spectroscopy of HD 104237

Author

Tatulli, E., primary, Isella, A., additional, Natta, A., additional, Testi, L., additional, Marconi, A., additional, Malbet, F., additional, Stee, P., additional, Petrov, R. G., additional, Millour, F., additional, Chelli, A., additional, Duvert, G., additional, Antonelli, P., additional, Beckmann, U., additional, Bresson, Y., additional, Dugué, M., additional, Gennari, S., additional, Glück, L., additional, Kern, P., additional, Lagarde, S., additional, Le Coarer, E., additional, Lisi, F., additional, Perraut, K., additional, Puget, P., additional, Rantakyrö, F., additional, Robbe-Dubois, S., additional, Roussel, A., additional, Weigelt, G., additional, Zins, G., additional, Accardo, M., additional, Acke, B., additional, Agabi, K., additional, Altariba, E., additional, Arezki, B., additional, Aristidi, E., additional, Baffa, C., additional, Behrend, J., additional, Blöcker, T., additional, Bonhomme, S., additional, Busoni, S., additional, Cassaing, F., additional, Clausse, J.-M., additional, Colin, J., additional, Connot, C., additional, Delboulbé, A., additional, Domiciano de Souza, A., additional, Driebe, T., additional, Feautrier, P., additional, Ferruzzi, D., additional, Forveille, T., additional, Fossat, E., additional, Foy, R., additional, Fraix-Burnet, D., additional, Gallardo, A., additional, Giani, E., additional, Gil, C., additional, Glentzlin, A., additional, Heiden, M., additional, Heininger, M., additional, Hernandez Utrera, O., additional, Hofmann, K.-H., additional, Kamm, D., additional, Kiekebusch, M., additional, Kraus, S., additional, Le Contel, D., additional, Le Contel, J.-M., additional, Lesourd, T., additional, Lopez, B., additional, Lopez, M., additional, Magnard, Y., additional, Mars, G., additional, Martinot-Lagarde, G., additional, Mathias, P., additional, Mège, P., additional, Monin, J.-L., additional, Mouillet, D., additional, Mourard, D., additional, Nussbaum, E., additional, Ohnaka, K., additional, Pacheco, J., additional, Perrier, C., additional, Rabbia, Y., additional, Rebattu, S., additional, Reynaud, F., additional, Richichi, A., additional, Robini, A., additional, Sacchettini, M., additional, Schertl, D., additional, Schöller, M., additional, Solscheid, W., additional, Spang, A., additional, Stefanini, P., additional, Tallon, M., additional, Tallon-Bosc, I., additional, Tasso, D., additional, Vakili, F., additional, von der Lühe, O., additional, Valtier, J.-C., additional, Vannier, M., additional, and Ventura, N., additional

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2006
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23. An analysis of temperatures and wind speeds above Dome C, Antarctica

Author

Aristidi, E., primary, Agabi, K., additional, Azouit, M., additional, Fossat, E., additional, Vernin, J., additional, Travouillon, T., additional, Lawrence, J. S., additional, Meyer, C., additional, Storey, J. W. V., additional, Halter, B., additional, Roth, W. L., additional, and Walden, V., additional

Published
2005
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26. Direct constraint on the distance of γ2Velorum from AMBER/VLTI observations*

Author

Millour, F., Petrov, R. G., Chesneau, O., Bonneau, D., Dessart, L., Bechet, C., Tallon-Bosc, I., Tallon, M., Thiébaut, E., Vakili, F., Malbet, F., Mourard, D., Antonelli, P., Beckmann, U., Bresson, Y., Chelli, A., Dugué, M., Duvert, G., Gennari, S., Glück, L., Kern, P., Lagarde, S., Le Coarer, E., Lisi, F., Perraut, K., Puget, P., Rantakyrö, F., Robbe-Dubois, S., Roussel, A., Tatulli, E., Weigelt, G., Zins, G., Accardo, M., Acke, B., Agabi, K., Altariba, E., Arezki, B., Aristidi, E., Baffa, C., Behrend, J., Blöcker, T., Bonhomme, S., Busoni, S., Cassaing, F., Clausse, J.-M., Colin, J., Connot, C., Delboulbé, A., Domiciano de Souza, A., Driebe, T., Feautrier, P., Ferruzzi, D., Forveille, T., Fossat, E., Foy, R., Fraix-Burnet, D., Gallardo, A., Giani, E., Gil, C., Glentzlin, A., Heiden, M., Heininger, M., Hernandez Utrera, O., Hofmann, K.-H., Kamm, D., Kiekebusch, M., Kraus, S., Le Contel, D., Le Contel, J.-M., Lesourd, T., Lopez, B., Lopez, M., Magnard, Y., Marconi, A., Mars, G., Martinot-Lagarde, G., Mathias, P., Mège, P., Monin, J.-L., Mouillet, D., Nussbaum, E., Ohnaka, K., Pacheco, J., Perrier, C., Rabbia, Y., Rebattu, S., Reynaud, F., Richichi, A., Robini, A., Sacchettini, M., Schertl, D., Schöller, M., Solscheid, W., Spang, A., Stee, P., Stefanini, P., Tasso, D., Testi, L., von der Lühe, O., Valtier, J.-C., Vannier, M., Ventura, N., Millour, F., Petrov, R. G., Chesneau, O., Bonneau, D., Dessart, L., Bechet, C., Tallon-Bosc, I., Tallon, M., Thiébaut, E., Vakili, F., Malbet, F., Mourard, D., Antonelli, P., Beckmann, U., Bresson, Y., Chelli, A., Dugué, M., Duvert, G., Gennari, S., Glück, L., Kern, P., Lagarde, S., Le Coarer, E., Lisi, F., Perraut, K., Puget, P., Rantakyrö, F., Robbe-Dubois, S., Roussel, A., Tatulli, E., Weigelt, G., Zins, G., Accardo, M., Acke, B., Agabi, K., Altariba, E., Arezki, B., Aristidi, E., Baffa, C., Behrend, J., Blöcker, T., Bonhomme, S., Busoni, S., Cassaing, F., Clausse, J.-M., Colin, J., Connot, C., Delboulbé, A., Domiciano de Souza, A., Driebe, T., Feautrier, P., Ferruzzi, D., Forveille, T., Fossat, E., Foy, R., Fraix-Burnet, D., Gallardo, A., Giani, E., Gil, C., Glentzlin, A., Heiden, M., Heininger, M., Hernandez Utrera, O., Hofmann, K.-H., Kamm, D., Kiekebusch, M., Kraus, S., Le Contel, D., Le Contel, J.-M., Lesourd, T., Lopez, B., Lopez, M., Magnard, Y., Marconi, A., Mars, G., Martinot-Lagarde, G., Mathias, P., Mège, P., Monin, J.-L., Mouillet, D., Nussbaum, E., Ohnaka, K., Pacheco, J., Perrier, C., Rabbia, Y., Rebattu, S., Reynaud, F., Richichi, A., Robini, A., Sacchettini, M., Schertl, D., Schöller, M., Solscheid, W., Spang, A., Stee, P., Stefanini, P., Tasso, D., Testi, L., von der Lühe, O., Valtier, J.-C., Vannier, M., and Ventura, N.

Abstract

Context.Interferometry can provide spatially resolvedobservations of massive star binary systems and their colliding winds, which thus far have been studied mostly with spatially unresolvedobservations.

Published
2007
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27. Constraining the wind launching region in Herbig Ae stars: AMBER/VLTI spectroscopy of HD 104237 *

Author

Tatulli, E., Isella, A., Natta, A., Testi, L., Marconi, A., Malbet, F., Stee, P., Petrov, R. G., Millour, F., Chelli, A., Duvert, G., Antonelli, P., Beckmann, U., Bresson, Y., Dugué, M., Gennari, S., Glück, L., Kern, P., Lagarde, S., Le Coarer, E., Lisi, F., Perraut, K., Puget, P., Rantakyrö, F., Robbe-Dubois, S., Roussel, A., Weigelt, G., Zins, G., Accardo, M., Acke, B., Agabi, K., Altariba, E., Arezki, B., Aristidi, E., Baffa, C., Behrend, J., Blöcker, T., Bonhomme, S., Busoni, S., Cassaing, F., Clausse, J.-M., Colin, J., Connot, C., Delboulbé, A., Domiciano de Souza, A., Driebe, T., Feautrier, P., Ferruzzi, D., Forveille, T., Fossat, E., Foy, R., Fraix-Burnet, D., Gallardo, A., Giani, E., Gil, C., Glentzlin, A., Heiden, M., Heininger, M., Hernandez Utrera, O., Hofmann, K.-H., Kamm, D., Kiekebusch, M., Kraus, S., Le Contel, D., Le Contel, J.-M., Lesourd, T., Lopez, B., Lopez, M., Magnard, Y., Mars, G., Martinot-Lagarde, G., Mathias, P., Mège, P., Monin, J.-L., Mouillet, D., Mourard, D., Nussbaum, E., Ohnaka, K., Pacheco, J., Perrier, C., Rabbia, Y., Rebattu, S., Reynaud, F., Richichi, A., Robini, A., Sacchettini, M., Schertl, D., Schöller, M., Solscheid, W., Spang, A., Stefanini, P., Tallon, M., Tallon-Bosc, I., Tasso, D., Vakili, F., von der Lühe, O., Valtier, J.-C., Vannier, M., Ventura, N., Tatulli, E., Isella, A., Natta, A., Testi, L., Marconi, A., Malbet, F., Stee, P., Petrov, R. G., Millour, F., Chelli, A., Duvert, G., Antonelli, P., Beckmann, U., Bresson, Y., Dugué, M., Gennari, S., Glück, L., Kern, P., Lagarde, S., Le Coarer, E., Lisi, F., Perraut, K., Puget, P., Rantakyrö, F., Robbe-Dubois, S., Roussel, A., Weigelt, G., Zins, G., Accardo, M., Acke, B., Agabi, K., Altariba, E., Arezki, B., Aristidi, E., Baffa, C., Behrend, J., Blöcker, T., Bonhomme, S., Busoni, S., Cassaing, F., Clausse, J.-M., Colin, J., Connot, C., Delboulbé, A., Domiciano de Souza, A., Driebe, T., Feautrier, P., Ferruzzi, D., Forveille, T., Fossat, E., Foy, R., Fraix-Burnet, D., Gallardo, A., Giani, E., Gil, C., Glentzlin, A., Heiden, M., Heininger, M., Hernandez Utrera, O., Hofmann, K.-H., Kamm, D., Kiekebusch, M., Kraus, S., Le Contel, D., Le Contel, J.-M., Lesourd, T., Lopez, B., Lopez, M., Magnard, Y., Mars, G., Martinot-Lagarde, G., Mathias, P., Mège, P., Monin, J.-L., Mouillet, D., Mourard, D., Nussbaum, E., Ohnaka, K., Pacheco, J., Perrier, C., Rabbia, Y., Rebattu, S., Reynaud, F., Richichi, A., Robini, A., Sacchettini, M., Schertl, D., Schöller, M., Solscheid, W., Spang, A., Stefanini, P., Tallon, M., Tallon-Bosc, I., Tasso, D., Vakili, F., von der Lühe, O., Valtier, J.-C., Vannier, M., and Ventura, N.

Abstract

Aims.We investigate the origin of the ${\rm Br}\gamma$emission of the Herbig Ae star HD 104237 on Astronomical Unit (AU) scales.

Published
2007
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28. Disk and wind interaction in the young stellar object MWC 297spatially resolved with AMBER/VLTI *

Author

Malbet, F., Benisty, M., de Wit, W.-J., Kraus, S., Meilland, A., Millour, F., Tatulli, E., Berger, J.-P., Chesneau, O., Hofmann, K.-H., Isella, A., Natta, A., Petrov, R. G., Preibisch, T., Stee, P., Testi, L., Weigelt, G., Antonelli, P., Beckmann, U., Bresson, Y., Chelli, A., Dugué, M., Duvert, G., Gennari, S., Glück, L., Kern, P., Lagarde, S., Le Coarer, E., Lisi, F., Perraut, K., Puget, P., Rantakyrö, F., Robbe-Dubois, S., Roussel, A., Zins, G., Accardo, M., Acke, B., Agabi, K., Altariba, E., Arezki, B., Aristidi, E., Baffa, C., Behrend, J., Blöcker, T., Bonhomme, S., Busoni, S., Cassaing, F., Clausse, J.-M., Colin, J., Connot, C., Delboulbé, A., Domiciano de Souza, A., Driebe, T., Feautrier, P., Ferruzzi, D., Forveille, T., Fossat, E., Foy, R., Fraix-Burnet, D., Gallardo, A., Giani, E., Gil, C., Glentzlin, A., Heiden, M., Heininger, M., Hernandez Utrera, O., Kamm, D., Kiekebusch, M., Le Contel, D., Le Contel, J.-M., Lesourd, T., Lopez, B., Lopez, M., Magnard, Y., Marconi, A., Mars, G., Martinot-Lagarde, G., Mathias, P., Mège, P., Monin, J.-L., Mouillet, D., Mourard, D., Nussbaum, E., Ohnaka, K., Pacheco, J., Perrier, C., Rabbia, Y., Rebattu, S., Reynaud, F., Richichi, A., Robini, A., Sacchettini, M., Schertl, D., Schöller, M., Solscheid, W., Spang, A., Stefanini, P., Tallon, M., Tallon-Bosc, I., Tasso, D., Vakili, F., von der Lühe, O., Valtier, J.-C., Vannier, M., Ventura, N., Malbet, F., Benisty, M., de Wit, W.-J., Kraus, S., Meilland, A., Millour, F., Tatulli, E., Berger, J.-P., Chesneau, O., Hofmann, K.-H., Isella, A., Natta, A., Petrov, R. G., Preibisch, T., Stee, P., Testi, L., Weigelt, G., Antonelli, P., Beckmann, U., Bresson, Y., Chelli, A., Dugué, M., Duvert, G., Gennari, S., Glück, L., Kern, P., Lagarde, S., Le Coarer, E., Lisi, F., Perraut, K., Puget, P., Rantakyrö, F., Robbe-Dubois, S., Roussel, A., Zins, G., Accardo, M., Acke, B., Agabi, K., Altariba, E., Arezki, B., Aristidi, E., Baffa, C., Behrend, J., Blöcker, T., Bonhomme, S., Busoni, S., Cassaing, F., Clausse, J.-M., Colin, J., Connot, C., Delboulbé, A., Domiciano de Souza, A., Driebe, T., Feautrier, P., Ferruzzi, D., Forveille, T., Fossat, E., Foy, R., Fraix-Burnet, D., Gallardo, A., Giani, E., Gil, C., Glentzlin, A., Heiden, M., Heininger, M., Hernandez Utrera, O., Kamm, D., Kiekebusch, M., Le Contel, D., Le Contel, J.-M., Lesourd, T., Lopez, B., Lopez, M., Magnard, Y., Marconi, A., Mars, G., Martinot-Lagarde, G., Mathias, P., Mège, P., Monin, J.-L., Mouillet, D., Mourard, D., Nussbaum, E., Ohnaka, K., Pacheco, J., Perrier, C., Rabbia, Y., Rebattu, S., Reynaud, F., Richichi, A., Robini, A., Sacchettini, M., Schertl, D., Schöller, M., Solscheid, W., Spang, A., Stefanini, P., Tallon, M., Tallon-Bosc, I., Tasso, D., Vakili, F., von der Lühe, O., Valtier, J.-C., Vannier, M., and Ventura, N.

Abstract

The young stellar object MWC 297is an embedded B1.5Ve star exhibiting strong hydrogen emission lines and a strong near-infrared continuum excess. This object has been observed with the VLT interferometer equipped with the AMBER instrument during its first commissioning run. AMBER/VLTI is currently the only near infrared interferometer that can observe spectrally dispersed visibilities. MWC 297has been spatially resolved in the continuum with a visibility of $0.50^{+0.08}_{-0.10}$as well as in the Brγemission line where the visibility decreases to $0.33\pm0.06$. This change in the visibility with wavelength can be interpreted by the presence of an optically thick disk responsible for the visibility in the continuum and of a stellar wind traced by the Brγemission line and whose apparent size is 40% larger. We validate this interpretation by building a model of the stellar environment that combines a geometrically thin, optically thick accretion disk model consisting of gas and dust, and a latitude-dependent stellar wind outflowing above the disk surface. The continuum emission and visibilities obtained from this model are fully consistent with the interferometric AMBER data. They agree also with existing optical, near-infrared spectra and other broad-band near-infrared interferometric visibilities. We also reproduce the shape of the visibilities in the Brγline as well as the profile of this line obtained at an higher spectral resolution with the VLT/ISAAC spectrograph, and those of the Hαand Hβlines. The disk and wind models yield a consistent inclination of the system of approximately 20°. A picture emerges in which MWC 297is surrounded by an equatorial flat disk that is possibly still accreting and an outflowing wind that has a much higher velocity in the polar region than at the equator. The AMBER/VLTI unique capability of measuring spectral visibilities therefore allows us for the first time to compare the apparent geometry of a wind with the disk structure in a young stellar system.

Published
2007
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29. Near-infrared interferometry of ηCarinaewith spectral resolutions of 1 500 and 12 000 using AMBER/VLTI*

Author

Weigelt, G., Kraus, S., Driebe, T., Petrov, R. G., Hofmann, K.-H., Millour, F., Chesneau, O., Schertl, D., Malbet, F., Hillier, D. J., Gull, T., Davidson, K., Domiciano de Souza, A., Antonelli, P., Beckmann, U., Bresson, Y., Chelli, A., Dugué, M., Duvert, G., Gennari, S., Glück, L., Kern, P., Lagarde, S., Le Coarer, E., Lisi, F., Perraut, K., Puget, P., Rantakyrö, F., Robbe-Dubois, S., Roussel, A., Tatulli, E., Zins, G., Accardo, M., Acke, B., Agabi, K., Altariba, E., Arezki, B., Aristidi, E., Baffa, C., Behrend, J., Blöcker, T., Bonhomme, S., Busoni, S., Cassaing, F., Clausse, J.-M., Colin, J., Connot, C., Delboulbé, A., Feautrier, P., Ferruzzi, D., Forveille, T., Fossat, E., Foy, R., Fraix-Burnet, D., Gallardo, A., Giani, E., Gil, C., Glentzlin, A., Heiden, M., Heininger, M., Hernandez Utrera, O., Kamm, D., Kiekebusch, M., Le Contel, D., Le Contel, J.-M., Lesourd, T., Lopez, B., Lopez, M., Magnard, Y., Marconi, A., Mars, G., Martinot-Lagarde, G., Mathias, P., Mège, P., Monin, J.-L., Mouillet, D., Mourard, D., Nussbaum, E., Ohnaka, K., Pacheco, J., Perrier, C., Rabbia, Y., Rebattu, S., Reynaud, F., Richichi, A., Robini, A., Sacchettini, M., Schöller, M., Solscheid, W., Spang, A., Stee, P., Stefanini, P., Tallon, M., Tallon-Bosc, I., Tasso, D., Testi, L., Vakili, F., von der Lühe, O., Valtier, J.-C., Vannier, M., Ventura, N., Weis, K., Wittkowski, M., Weigelt, G., Kraus, S., Driebe, T., Petrov, R. G., Hofmann, K.-H., Millour, F., Chesneau, O., Schertl, D., Malbet, F., Hillier, D. J., Gull, T., Davidson, K., Domiciano de Souza, A., Antonelli, P., Beckmann, U., Bresson, Y., Chelli, A., Dugué, M., Duvert, G., Gennari, S., Glück, L., Kern, P., Lagarde, S., Le Coarer, E., Lisi, F., Perraut, K., Puget, P., Rantakyrö, F., Robbe-Dubois, S., Roussel, A., Tatulli, E., Zins, G., Accardo, M., Acke, B., Agabi, K., Altariba, E., Arezki, B., Aristidi, E., Baffa, C., Behrend, J., Blöcker, T., Bonhomme, S., Busoni, S., Cassaing, F., Clausse, J.-M., Colin, J., Connot, C., Delboulbé, A., Feautrier, P., Ferruzzi, D., Forveille, T., Fossat, E., Foy, R., Fraix-Burnet, D., Gallardo, A., Giani, E., Gil, C., Glentzlin, A., Heiden, M., Heininger, M., Hernandez Utrera, O., Kamm, D., Kiekebusch, M., Le Contel, D., Le Contel, J.-M., Lesourd, T., Lopez, B., Lopez, M., Magnard, Y., Marconi, A., Mars, G., Martinot-Lagarde, G., Mathias, P., Mège, P., Monin, J.-L., Mouillet, D., Mourard, D., Nussbaum, E., Ohnaka, K., Pacheco, J., Perrier, C., Rabbia, Y., Rebattu, S., Reynaud, F., Richichi, A., Robini, A., Sacchettini, M., Schöller, M., Solscheid, W., Spang, A., Stee, P., Stefanini, P., Tallon, M., Tallon-Bosc, I., Tasso, D., Testi, L., Vakili, F., von der Lühe, O., Valtier, J.-C., Vannier, M., Ventura, N., Weis, K., and Wittkowski, M.

Abstract

Aims.We present the first NIR spectro-interferometryof the LBV ηCarinae. The observations were performed with the AMBER instrument of the ESO Very Large Telescope Interferometer(VLTI) using baselines from 42 to 89 m. The aim of this work is to study the wavelength dependence of ηCar's optically thick wind region with a high spatial resolution of 5 mas (11 AU) and high spectral resolution.

Published
2007
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30. An asymmetry detected in the disk of κCanis Majoriswith AMBER/VLTI *

Author

Meilland, A., Millour, F., Stee, P., Domiciano de Souza, A., Petrov, R. G., Mourard, D., Jankov, S., Robbe-Dubois, S., Spang, A., Aristidi, E., Antonelli, P., Beckmann, U., Bresson, Y., Chelli, A., Dugué, M., Duvert, G., Gennari, S., Glück, L., Kern, P., Lagarde, S., Le Coarer, E., Lisi, F., Malbet, F., Perraut, K., Puget, P., Rantakyrö, F., Roussel, A., Tatulli, E., Weigelt, G., Zins, G., Accardo, M., Acke, B., Agabi, K., Altariba, E., Arezki, B., Baffa, C., Behrend, J., Blöcker, T., Bonhomme, S., Busoni, S., Cassaing, F., Clausse, J.-M., Colin, J., Connot, C., Delboulbé, A., Driebe, T., Feautrier, P., Ferruzzi, D., Forveille, T., Fossat, E., Foy, R., Fraix-Burnet, D., Gallardo, A., Giani, E., Gil, C., Glentzlin, A., Heiden, M., Heininger, M., Hernandez Utrera, O., Hofmann, K.-H., Kamm, D., Kiekebusch, M., Kraus, S., Le Contel, D., Le Contel, J.-M., Lesourd, T., Lopez, B., Lopez, M., Magnard, Y., Marconi, A., Mars, G., Martinot-Lagarde, G., Mathias, P., Mège, P., Monin, J.-L., Mouillet, D., Nussbaum, E., Ohnaka, K., Pacheco, J., Perrier, C., Rabbia, Y., Rebattu, S., Reynaud, F., Richichi, A., Robini, A., Sacchettini, M., Schertl, D., Schöller, M., Solscheid, W., Stefanini, P., Tallon, M., Tallon-Bosc, I., Tasso, D., Testi, L., Vakili, F., von der Lühe, O., Valtier, J.-C., Vannier, M., Ventura, N., Meilland, A., Millour, F., Stee, P., Domiciano de Souza, A., Petrov, R. G., Mourard, D., Jankov, S., Robbe-Dubois, S., Spang, A., Aristidi, E., Antonelli, P., Beckmann, U., Bresson, Y., Chelli, A., Dugué, M., Duvert, G., Gennari, S., Glück, L., Kern, P., Lagarde, S., Le Coarer, E., Lisi, F., Malbet, F., Perraut, K., Puget, P., Rantakyrö, F., Roussel, A., Tatulli, E., Weigelt, G., Zins, G., Accardo, M., Acke, B., Agabi, K., Altariba, E., Arezki, B., Baffa, C., Behrend, J., Blöcker, T., Bonhomme, S., Busoni, S., Cassaing, F., Clausse, J.-M., Colin, J., Connot, C., Delboulbé, A., Driebe, T., Feautrier, P., Ferruzzi, D., Forveille, T., Fossat, E., Foy, R., Fraix-Burnet, D., Gallardo, A., Giani, E., Gil, C., Glentzlin, A., Heiden, M., Heininger, M., Hernandez Utrera, O., Hofmann, K.-H., Kamm, D., Kiekebusch, M., Kraus, S., Le Contel, D., Le Contel, J.-M., Lesourd, T., Lopez, B., Lopez, M., Magnard, Y., Marconi, A., Mars, G., Martinot-Lagarde, G., Mathias, P., Mège, P., Monin, J.-L., Mouillet, D., Nussbaum, E., Ohnaka, K., Pacheco, J., Perrier, C., Rabbia, Y., Rebattu, S., Reynaud, F., Richichi, A., Robini, A., Sacchettini, M., Schertl, D., Schöller, M., Solscheid, W., Stefanini, P., Tallon, M., Tallon-Bosc, I., Tasso, D., Testi, L., Vakili, F., von der Lühe, O., Valtier, J.-C., Vannier, M., and Ventura, N.

Abstract

Aims.We study the geometry and kinematics of the circumstellar environment of the Be star κCMa in the Brγemission line and its nearby continuum.

Published
2007
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31. ASTEP South: An Antarctic Search for Transiting Planets around the celestial South pole.

Author

Crouzet, N., Agabi, K., Blazit, A., Bonhomme, S., Fanteï-Caujolle, Y., Fressin, F., Guillot, T., Schmider, F.-X., Valbousquet, F., Bondoux, E., Challita, Z., Abe, L., Daban, J.-B., and Gouvret, C.

Abstract

ASTEP South is the first phase of the ASTEP project that aims to determine the quality of Dome C as a site for future photometric searches for transiting exoplanets and discover extrasolar planets from the Concordia base in Antarctica. ASTEP South consists of a front-illuminated 4k × 4k CCD camera, a 10 cm refractor, and a simple mount in a thermalized enclosure. A double-glass window is used to reduce temperature variations and the associated turbulence on the optical path. The telescope is fixed and observes a 4° × 4° field of view centered on the celestial South pole. With this design, A STEP South is very stable and observes with low and constant airmass, both being important issues for photometric precision. We present the project, we show that enough stars are present in our field of view to allow the detection of one to a few transiting giant planets, and that the photometric precision of the instrument should be a few mmag for stars brighter than magnitude 12 and better than 10 mmag for stars of magnitude 14 or less. [ABSTRACT FROM PUBLISHER]

Published
2008
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34. Telescope and instrument robotization at Dome C

Author

G. Durand, John W. V. Storey, O. Pirnay, Alasdair Allan, A. Pierre, A. Mancini, Rainer Lenzen, L. Agnoletto, Fabio Roncella, François-Xavier Schmider, Alcione Mora, L. Damé, V. Coudé du Foresto, S. Castellini, A. Gröschke, Favio Bortoletto, Tony Travouillon, W. Ansorge, Hans J. Kärcher, Carlos Eiroa, Jean-Tristan Buey, Nicholas F. H Tothill, Massimo Frezzotti, C. Montanari, Iain A. Steele, D. Fappani, Klaus G. Strassmeier, K. Agabi, Runa Briguglio, Hans J. Deeg, Luca Vittuari, T. Granzer, Michael I. Andersen, Marc Weber, Astrophysikalisches Institut Potsdam (AIP), Laboratoire Universitaire d'Astrophysique de Nice (LUAN), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Italian National Program for Research in Antarctica (PNRA), School of Physics and Astronomy [Exeter], University of Exeter, RAMS-CON Management Consultants, INAF - Osservatorio Astronomico di Padova (OAPD), Istituto Nazionale di Astrofisica (INAF), Dipartimento di Fisica [Roma La Sapienza], Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] (UNIROMA), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Pôle Astronomie du LESIA, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Ingénieurs, Techniciens et Administratifs, Physique solaire, Dipartimento di Fisica e Geologia [Perugia], Università degli Studi di Perugia = University of Perugia (UNIPG), Service d'aéronomie (SA), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Instituto de Astrofisica de Canarias (IAC), Instituto de Física Teórica UAM/CSIC (IFT), Universidad Autónoma de Madrid (UAM)-Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Société Européenne de Systèmes Optiques (SESO), Ente per le Nuove Technologie, l'Energia e l'Ambiente (ENEA), Centro Ricerche Casaccia, Alfred Wegener Institute for Polar and Marine Research (AWI), MT Mechatronics, Max-Planck-Institut für Aeronomie (MPI Aeronomie), Max-Planck-Gesellschaft, L'Institut polaire français Paul-Emile Victor (IPEV), Ministère de l'Education nationale, de l’Enseignement supérieur et de la Recherche (M.E.N.E.S.R.), AMOS, Liverpool John Moores University (LJMU), University of New South Wales [Sydney] (UNSW), Cahill Center for Astronomy and Astrophysics, California Institute of Technology (CALTECH), Dipartimento di Ingegneria delle Strutture, dei Trasporti, delle Acque, del Rilevamento, del Territorio (DISTART), Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), K.G. Strassmeier, K. Agabi, L. Agnoletto, A. Allan, M. I. Andersen, W. Ansorge, F. Bortoletto, R. Briguglio, J.-T. Buey, S. Castellini, V. Coud´e du Foresto, L. Dam´e, H. J. Deeg, C. Eiroa, G. Durand, D. Fappani, M. Frezzotti, T. Granzer, A. Gr¨oschke, H. J. K¨archer, R. Lenzen, A. Mancini, C. Montanari, A. Mora, A. Pierre, O. Pirnay, F. Roncella, F.-X. Schmider, I. Steele, J.W. V. Storey, N. F. H. Tothill, T. Travouillon, L. Vittuari, and M. Weber, Strassmeier, K. G., Agabi, K., Agnoletto, L., Allan, A., Andersen, M. I., Ansorge, W., Bortoletto, F., Briguglio, R., Buey, J. -T., Castellini, S., Du Foresto, V. C., Dame, L., Deeg, H. J., Eiroa, C., Durand, G., Fappani, D., Frezzotti, M., Granzer, T., Groschke, A., Karcher, H. J., Lenzen, R., Mancini, A., Montanari, C., Mora, A., Pierre, A., Pirnay, O., Roncella, F., Schmider, F. -X., Steele, I., Storey, J. W. V., Tothill, N. F. H., Travouillon, T., Vittuari, L., and Weber, M.

Subjects
Atmospheric effect, 010308 nuclear & particles physics, Site testing, Astronomy and Astrophysics, 01 natural sciences, law.invention, Telescope, ATMOSPHERIC EFFECTS, INSTRUMENTATION: MISCELLANEOUS, Dome (geology), miscellaneou [Instrumentation], Space and Planetary Science, law, SITE TESTING, 0103 physical sciences, TELESCOPES, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], 010303 astronomy & astrophysics, Geology, Telescopes, Remote sensing
Abstract

This article reviews the situation for robotization of telescopes and instruments at the Antarctic station Concordia on Dome C. A brain-storming meeting was held in Tenerife in March 2007 from which this review emerged.We describe and summarize the challenges for night-time operations of various astronomical experiments at conditions “between Earth and Space” and conclude that robotization is likely a prerequisite for continuous astronomical data taking during the 2000-hour night at Dome C. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

Published
2007
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35. Method of estimating time scales of the atmospheric piston and its application at Dome C (Antarctica).

Author

Kellerer A, Sarazin M, du Foresto VC, Agabi K, Aristidi E, and Sadibekova T

Abstract

Analysis of the first interferometric fringes recorded at Dome C, Antarctica are presented. Measurements were taken 31 January and 1 February 2005 during daytime. Our purpose in performing the analysis was to measure temporal fluctuations of the atmospheric piston, which are critical for interferometers, and determine their sensitivity. These scales are derived through the motion of the image that is formed in the focal plane of a Fizeau interferometer. We could establish a lower limit to the coherence time by studying the decay rate of correlation between successive fringes. Coherence times are measured to be larger than 10 ms, i.e., at least three times higher than the median coherence time measured at the site of Paranal (3.3 ms).

Published
2006
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