Zobrazeno 1 - 10
of 259
pro vyhledávání: '"Gagne, J. A."'
Autor:
Schutte, M. C., Lawson, K. D., Wisniewski, J. P., Kuchner, M. J., Silverberg, S. M., Faherty, J. K., Gagliuffi, D. C. Bardalez, Kiman, R., Gagné, J., Meisner, A., Schneider, A. C., Bans, A. S., Debes, J. H., Kovacevic, N., Bosch, M. K. D., Luca, H. A. Durantini, Holden, J., Hyogo, M.
We report the discovery of the youngest brown dwarf with a disk at 102 pc from the Sun, WISEA~J120037.79-784508.3 (W1200-7845), via the Disk Detective citizen science project. We establish that W1200-7845 is located in the 3.7$\substack{+4.6 \\ -1.4}
Externí odkaz:
http://arxiv.org/abs/2007.15735
Autor:
Bredall, J. W., Shappee, B. J., Gaidos, E., Jayasinghe, T., Vallely, P., Stanek, K. Z., Kochanek, C. S., Gagné, J., Hart, K., Holoien, T. W. -S., Prieto, J. L., Van Saders, J.
Some young stellar objects such as T Tauri-like "dipper" stars vary due to transient partial occultation by circumstellar dust, and observations of this phenomenon inform us of conditions in the planet-forming zones close to these stars. Although man
Externí odkaz:
http://arxiv.org/abs/2005.14201
We present a parallax solution for WISE J135501.90-825838.9, a spectral binary with spectral types L7+T7.5 and candidate AB Doradus member. Using $WISE$ astrometry, we obtain a distance of $d = 16.7\pm5.3$ pc. This preliminary parallax solution provi
Externí odkaz:
http://arxiv.org/abs/2005.07096
Autor:
Delorme, P., Dupuy, T., Gagné, J., Reylé, C., Forveille, T., Liu, Michael C., Artigau, E., Albert, L., Delfosse, X., Allard, F., Homeier, D., Malo, L., Morley, C., Naud, M. E., Bonnefoy, M.
Publikováno v:
A&A 602, A82 (2017)
We conducted a multi-wavelength, multi-instrument observational characterisation of the candidate free-floating planet CFBDSIR~J214947.2-040308.9, a late T-dwarf with possible low-gravity features, in order to constrain its physical properties. We an
Externí odkaz:
http://arxiv.org/abs/1703.00843
Autor:
Lannier, J., Delorme, P., Lagrange, A. M., Borgniet, S., Rameau, J., Schlieder, J. E., Gagné, J., Bonavita, M. A., Malo, L., Chauvin, G., Bonnefoy, M., Girard, J. H.
Direct imaging has led to the discovery of several giant planet and brown dwarf companions. These imaged companions populate a mass, separation and age domain (mass>1MJup, orbits>5AU, age<1Gyr) quite distinct from the one occupied by exoplanets disco
Externí odkaz:
http://arxiv.org/abs/1607.06892
Autor:
Yi, X., Vahala, K., Diddams, S., Ycas, G., Plavchan, P., Leifer, S., Sandhu, J., Vasisht, G., Chen, P., Gao, P., Gagne, J., Furlan, E., Bottom, M., Martin, E., Fitzgerald, M., Doppmann, G., Beichman, C.
We describe a successful effort to produce a laser comb around 1.55 $\mu$m in the astronomical H band using a method based on a line-referenced, electro-optical-modulation frequency comb. We discuss the experimental setup, laboratory results, and pro
Externí odkaz:
http://arxiv.org/abs/1501.02509
Autor:
Gagne, J. P., Crenshaw, D. M., Kraemer, S. B., Schmitt, H. R., Keel, W. C., Rafter, S., Fischer, T. C., Bennert, V. N., Schawinski, K.
The Sloan Digital Sky Survey (SDSS) Galaxy Zoo project has revealed a number of spectacular galaxies possessing Extended Emission-Line Regions (EELRs), the most famous being Hanny's Voorwerp galaxy. We present another EELR object discovered in the SD
Externí odkaz:
http://arxiv.org/abs/1407.1729
Autor:
Delorme, P., Gagné, J., Girard, J. H., Lagrange, A. M., Chauvin, G., Naud, M-E., Lafrenière, D., Doyon, R., Riedel, A., Bonnefoy, M., Malo, L.
Context. Though only a handful of extrasolar planets have been discovered via direct imaging, each of these discoveries had tremendous impact on our understanding of planetary formation, stellar formation and cool atmosphere physics. Aims. Since many
Externí odkaz:
http://arxiv.org/abs/1303.4525
Autor:
Delorme, P., Gagné, J., Malo, L., Reylé, C., Artigau, E., Albert, L., Forveille, T., Delfosse, X., Allard, F., Homeier, D.
Using the CFBDSIR wide field survey for brown dwarfs, we identified CFBDSIRJ214947.2-040308.9, a late T dwarf with atypically red J-Ks colour. We obtained an X-Shooter spectra, with signal detectable from 0.8 to 2.3 micron, which confirmed a T7 spect
Externí odkaz:
http://arxiv.org/abs/1210.0305
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