Search

Your search keyword '"Christille, Jean Marc"' showing total 16 results
Start Over Author "Christille, Jean Marc"
16 results on '"Christille, Jean Marc"'

2. SIOUX project: a simultaneous multiband camera for exoplanet atmospheres studies

Author

Christille, Jean Marc, Bonomo, Aldo Stefano, Borsa, Francesco, Busonero, Deborah, Calcidese, Paolo, Claudi, Riccardo, Damasso, Mario, Giacobbe, Paolo, Molinari, Emilio, Pace, Emanuele, Riva, Alberto, Sozzetti, Alessandro, Toso, Giorgio, and Tresoldi, Daniela

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Earth and Planetary Astrophysics
Abstract

The exoplanet revolution is well underway. The last decade has seen order-of-magnitude increases in the number of known planets beyond the Solar system. Detailed characterization of exoplanetary atmospheres provide the best means for distinguishing the makeup of their outer layers, and the only hope for understanding the interplay between initial composition chemistry, temperature-pressure atmospheric profiles, dynamics and circulation. While pioneering work on the observational side has produced the first important detections of atmospheric molecules for the class of transiting exoplanets, important limitations are still present due to the lack of sys- tematic, repeated measurements with optimized instrumentation at both visible (VIS) and near-infrared (NIR) wavelengths. It is thus of fundamental importance to explore quantitatively possible avenues for improvements. In this paper we report initial results of a feasibility study for the prototype of a versatile multi-band imaging system for very high-precision differential photometry that exploits the choice of specifically selected narrow-band filters and novel ideas for the execution of simultaneous VIS and NIR measurements. Starting from the fundamental system requirements driven by the science case at hand, we describe a set of three opto-mechanical solutions for the instrument prototype: 1) a radial distribution of the optical flux using dichroic filters for the wavelength separation and narrow-band filters or liquid crystal filters for the observations; 2) a tree distribution of the optical flux (implying 2 separate foci), with the same technique used for the beam separation and filtering; 3) an exotic solution consisting of the study of a complete optical system (i.e. a brand new telescope) that exploits the chromatic errors of a reflecting surface for directing the different wavelengths at different foci.

Published
2016
Full Text
View/download PDF

5. Source, timing and dynamics of ionic species mobility in the Svalbard annual snowpack

Author

Spolaor, Andrea, primary, Varin, Cristiano, additional, Pedeli, Xanthi, additional, Christille, Jean Marc, additional, Kirchgeorg, Torben, additional, Giardi, Fabio, additional, Cappelletti, David, additional, Turetta, Clara, additional, Cairns, Warren R.L., additional, Gambaro, Andrea, additional, Bernagozzi, Andrea, additional, Gallet, Jean Charles, additional, Björkman, Mats P., additional, and Barbaro, Elena, additional

Published
2021
Full Text
View/download PDF

6. The APACHE survey hardware and software design: Tools for an automatic search of small-size transiting exoplanets

Author

Lattanzi M.G., Lanteri L., Damasso M., Giacobbe P., Cenadelli D., Carbognani A., Calcidese P., Bertolini E., Bernagozzi A., Christille Jean-Marc, Sozzetti A., and Smart R.

Subjects
Physics, QC1-999
Abstract

Small-size ground-based telescopes can effectively be used to look for transiting rocky planets around nearby low-mass M stars using the photometric transit method, as recently demonstrated for example by the MEarth project. Since 2008 at the Astronomical Observatory of the Autonomous Region of Aosta Valley (OAVdA), we have been preparing for the long-term photometric survey APACHE, aimed at finding transiting small-size planets around thousands of nearby early and mid-M dwarfs. APACHE (A PAthway toward the Characterization of Habitable Earths) is designed to use an array of five dedicated and identical 40-cm Ritchey-Chretien telescopes and its observations started at the beginning of summer 2012. The main characteristics of the survey final set up and the preliminary results from the first weeks of observations will be discussed.

Published
2013
Full Text
View/download PDF

7. Dynamics of ionic species in Svalbard annual snow: the effects of rain event and melting

Author

Barbaro, Elena, primary, Varin, Cristiano, additional, Pedeli, Xanthi, additional, Christille, Jean Marc, additional, Kirchgeorg, Torben, additional, Giardi, Fabio, additional, Cappelletti, David, additional, Turetta, Clara, additional, Gambaro, Andrea, additional, Bernagozzi, Andrea, additional, Gallet, Jean Charles, additional, Björkman, Mats P., additional, and Spolaor, Andrea, additional

Published
2019
Full Text
View/download PDF

8. Supplementary material to "Dynamics of ionic species in Svalbard annual snow: the effects of rain event and melting"

Author

Barbaro, Elena, primary, Varin, Cristiano, additional, Pedeli, Xanthi, additional, Christille, Jean Marc, additional, Kirchgeorg, Torben, additional, Giardi, Fabio, additional, Cappelletti, David, additional, Turetta, Clara, additional, Gambaro, Andrea, additional, Bernagozzi, Andrea, additional, Gallet, Jean Charles, additional, Björkman, Mats P., additional, and Spolaor, Andrea, additional

Published
2019
Full Text
View/download PDF

10. FM14 Session 2: Communicating Astronomy in our Changing World

Author

Waller, William H., primary, Canas, Lina, additional, Agata, Hidehiko, additional, Yamaoka, Hitoshi, additional, Karino, Shigeyuki, additional, Cenadelli, Davide, additional, Bernagozzi, Andrea Ettore, additional, Christille, Jean Marc, additional, Benedetto, Matteo, additional, Calabrese, Matteo, additional, Calcidese, Paolo, additional, Gelderman, Richard, additional, Hayashi, Saeko S., additional, Lubowich, Donald, additional, Madura, Thomas, additional, Christian, Carol, additional, Hurd, David, additional, Silberman, Ken, additional, Walker, Kyle, additional, McVoy, Shannon, additional, Massey, Robert, additional, Radajewski, Bogumił, additional, Mikołajewski, Maciej, additional, Czart, Krzysztof, additional, Guz, Iwona, additional, Rubaszewski, Adam, additional, Stelmach, Tomasz, additional, Ros, Rosa M., additional, Viñuales, Ederlinda, additional, Garca, Beatriz, additional, Sánchez, Yuly E., additional, Vargas, Domínguez Santiago, additional, Acosta, Cesar, additional, Rodríguez, Nayive, additional, Sekhar, Aswin, additional, Sundin, Maria, additional, Andersson, Petra, additional, Finnsgård, Christian, additional, Larsson, Lars, additional, Miller, Ron, additional, Tomita, Akihiko, additional, and Wadadekar, Yogesh, additional

Published
2018
Full Text
View/download PDF

12. SIOUX project: a simultaneous multiband camera for exoplanet atmospheres studies

Author

Christille, Jean Marc, additional, Bonomo, Aldo Stefano, additional, Borsa, Francesco, additional, Busonero, Deborah, additional, Calcidese, Paolo, additional, Claudi, Riccardo, additional, Damasso, Mario, additional, Giacobbe, Paolo, additional, Molinari, Emilio, additional, Pace, Emanuele, additional, Riva, Alberto, additional, Sozzetti, Alesandro, additional, Toso, Giorgio, additional, and Tresoldi, Daniela, additional

Published
2016
Full Text
View/download PDF

13. Antarctic observations at long wavelengths with the IRAIT-ITM Telescope at Dome C

Author

Durand, Gilles A., additional, Tremblin, Pascal, additional, Minier, Vincent, additional, Reinert, Yann, additional, Leroy dos Santos, Christophe, additional, Rodriguez, Louis, additional, Joffrin, Xavier, additional, Busso, Maurizio, additional, Tosti, Gino, additional, Nucciarelli, Giuliano, additional, Dolci, Mauro, additional, Straniero, Oscar, additional, Valentini, Angelo, additional, Abia, Carlos, additional, Christille, Jean Marc, additional, Doumayrou, Eric, additional, Lortholary, Michel, additional, Charron, Patrice, additional, Lotrus, Paul, additional, Walter, Christian, additional, Ronayette, Samuel, additional, Challita, Zalpha, additional, Fromont, Laurent, additional, Condamin, Mathieu, additional, Kwon, Min Kyong, additional, and Tavagnacco, Daniele, additional

Published
2014
Full Text
View/download PDF

15. Antarctic observations at long wavelengths with the IRAIT-ITM Telescope at Dome C

Author

Stepp, Larry M., Gilmozzi, Roberto, Hall, Helen J., Durand, Gilles A., Tremblin, Pascal, Minier, Vincent, Reinert, Yann, Leroy dos Santos, Christophe, Rodriguez, Louis, Joffrin, Xavier, Busso, Maurizio, Tosti, Gino, Nucciarelli, Giuliano, Dolci, Mauro, Straniero, Oscar, Valentini, Angelo, Abia, Carlos, Christille, Jean Marc, Doumayrou, Eric, Lortholary, Michel, Charron, Patrice, Lotrus, Paul, Walter, Christian, Ronayette, Samuel, Challita, Zalpha, Fromont, Laurent, Condamin, Mathieu, Kwon, Min Kyong, and Tavagnacco, Daniele

Published
2014
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results