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Your search keyword '"É. Depagne"' showing total 4 results
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4 results on '"É. Depagne"'

1. PLATO as it is: A legacy mission for Galactic archaeology

Author

A. Miglio, C. Chiappini, B. Mosser, G. R. Davies, K. Freeman, L. Girardi, P. Jofré, D. Kawata, B. M. Rendle, M. Valentini, L. Casagrande, W. J. Chaplin, G. Gilmore, K. Hawkins, B. Holl, T. Appourchaux, K. Belkacem, D. Bossini, K. Brogaard, M.‐J. Goupil, J. Montalbán, A. Noels, F. Anders, T. Rodrigues, G. Piotto, D. Pollacco, H. Rauer, C. Allende Prieto, P. P. Avelino, C. Babusiaux, C. Barban, B. Barbuy, S. Basu, F. Baudin, O. Benomar, O. Bienaymé, J. Binney, J. Bland‐Hawthorn, A. Bressan, C. Cacciari, T. L. Campante, S. Cassisi, J. Christensen‐Dalsgaard, F. Combes, O. Creevey, M. S. Cunha, R. S. Jong, P. Laverny, S. Degl'Innocenti, S. Deheuvels, É. Depagne, J. Ridder, P. Di Matteo, M. P. Di Mauro, M.‐A. Dupret, P. Eggenberger, Y. Elsworth, B. Famaey, S. Feltzing, R. A. García, O. Gerhard, B. K. Gibson, L. Gizon, M. Haywood, R. Handberg, U. Heiter, S. Hekker, D. Huber, R. Ibata, D. Katz, S. D. Kawaler, H. Kjeldsen, D. W. Kurtz, N. Lagarde, Y. Lebreton, M. N. Lund, S. R. Majewski, P. Marigo, M. Martig, S. Mathur, I. Minchev, T. Morel, S. Ortolani, M. H. Pinsonneault, B. Plez, P. G. Prada Moroni, D. Pricopi, A. Recio‐Blanco, C. Reylé, A. Robin, I. W. Roxburgh, M. Salaris, B. X. Santiago, R. Schiavon, A. Serenelli, S. Sharma, V. Silva Aguirre, C. Soubiran, M. Steinmetz, D. Stello, K. G. Strassmeier, P. Ventura, R. Ventura, N. A. Walton, and C. C. Worley

Published
2017
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2. WASP-24 b: A New Transiting Close-in Hot Jupiter Orbiting a Late F-star

Author

Don Pollacco, T. A. Lister, Damian J. Christian, I. Skillen, Andrew Norton, Joao Bento, I. Todd, Michaël Gillon, E. K. Simpson, Richard G. West, B. Enoch, Eric Stempels, Coel Hellier, David R. Anderson, Pierre F. L. Maxted, S. C. C. Barros, Peter J. Wheatley, Amaury H. M. J. Triaud, Yogesh C. Joshi, A. Collier Cameron, Damien Ségransan, Stéphane Udry, N. R. Parley, Leslie Hebb, Barry Smalley, P. Cathaway-Kjontvedt, D. Queloz, Rachel Street, Francesco Pepe, É Depagne, and S. J. Bentley

Subjects
Physics, 010308 nuclear & particles physics, Giant planet, Astronomy, Astronomy and Astrophysics, Astrophysics, Effective temperature, Planetary system, Surface gravity, 01 natural sciences, Radial velocity, Space and Planetary Science, Planet, 0103 physical sciences, Hot Jupiter, 010303 astronomy & astrophysics, Planetary mass
Abstract

We report the discovery of a new transiting close-in giant planet, WASP-24 b, in a 2.341 day orbit, 0.037 AU from its F8-9 type host star. By matching the star's spectrum with theoretical models, we infer an effective temperature T-eff = 6075 +/- 100 K and a surface gravity of log g = 4.15 +/- 0.10. A comparison of these parameters with theoretical isochrones and evolutionary mass tracks places only weak constraints on the age of the host star, which we estimate to be 3.8(-1.2)(+1.3) Gyr. The planetary nature of the companion was confirmed by radial velocity measurements and additional photometric observations. These data were fit simultaneously in order to determine the most probable parameter set for the system, from which we infer a planetary mass of 1.071(-0.038)(+0.036) M-Jup and radius 1.3(-0.037)(+0.039) R-Jup.

Published
2010
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3. Oxygen in very metal-poor stars

Author

F. Primas and É. Depagne

Subjects
Metal, Physics, Stars, chemistry, visual_art, K-type main-sequence star, visual_art.visual_art_medium, chemistry.chemical_element, Astronomy, Oxygen, Astrobiology
Published
2006

4. Wavelength calibration of a high resolution spectrograph with a partially stabilized 15-GHz astrocomb from 550 to 890 nm.

Author

McCracken RA, Depagne É, Kuhn RB, Erasmus N, Crause LA, and Reid DT

Abstract

A visible astrocomb spanning 555-890 nm has been implemented on the 10-m Southern African Large Telescope, delivering complete calibration of one channel of its high-resolution spectrograph and an accurate determination of its resolving power. A novel co-coupling method allowed simultaneous observation of on-sky, Th-Ar lamp and astrocomb channels, reducing the wavelength calibration uncertainty by a factor of two compared to that obtained using only Th-Ar lines. The excellent passive stability of the master frequency comb laser enabled broadband astrocomb generation without the need for carrier-envelope offset frequency locking, and an atomically referenced narrow linewidth diode laser provided an absolute fiducial marker for wavelength calibration. The simple astrocomb architecture enabled routine operation by non-specialists in an actual telescope environment. On-sky spectroscopy results are presented with direct calibration achieved entirely using the astrocomb.

Published
2017
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