%0 Generic %1 macintosh2014gemini %A Macintosh, Bruce %A Graham, James R. %A Ingraham, Patrick %A Konopacky, Quinn %A Marois, Christian %A Perrin, Marshall %A Poyneer, Lisa %A Bauman, Brian %A Barman, Travis %A Burrows, Adam %A Cardwell, Andrew %A Chilcote, Jeffrey %A De Rosa, Robert J. %A Dillon, Daren %A Doyon, Rene %A Dunn, Jennifer %A Erikson, Darren %A Fitzgerald, Michael %A Gavel, Donald %A Goodsell, Stephen %A Hartung, Markus %A Hibon, Pascale %A Kalas, Paul G. %A Larkin, James %A Maire, Jerome %A Marchis, Franck %A Marley, Mark %A McBride, James %A Millar-Blanchaer, Max %A Morzinski, Katie %A Norton, Andew %A Oppenheimer, B. R. %A Palmer, Dave %A Patience, Jennifer %A Pueyo, Laurent %A Rantakyro, Fredrik %A Sadakuni, Naru %A Saddlemyer, Leslie %A Savransky, Dmitry %A Serio, Andrew %A Soummer, Remi %A Sivaramakrishnan, Anand %A Song, Inseok %A Thomas, Sandrine %A Wallace, J. Kent %A Wiktorowicz, Sloane %A Wolff, Schuyler %D 2014 %K gemini imager planet %T The Gemini Planet Imager: First Light %U http://arxiv.org/abs/1403.7520 %X The Gemini Planet Imager (GPI) is a dedicated facility for directly imaging and spectroscopically characterizing extrasolar planets. It combines a very high-order adaptive optics system, a diffraction-suppressing coronagraph, and an integral field spectrograph with low spectral resolution but high spatial resolution. Every aspect of GPI has been tuned for maximum sensitivity to faint planets near bright stars. During first light observations, we achieved an estimated H band Strehl ratio of 0.89 and a 5-sigma contrast of $10^6$ at 0.75 arcseconds and $10^5$ at 0.35 arcseconds. Observations of Beta Pictoris clearly detect the planet, Beta Pictoris b, in a single 60-second exposure with minimal post-processing. Beta Pictoris b is observed at a separation of $434 6$ milli-arcseconds and position angle $211.8 0.5$ deg. Fitting the Keplerian orbit of Beta Pic b using the new position together with previous astrometry gives a factor of three improvement in most parameters over previous solutions. The planet orbits at a semi-major axis of $9.0^+0.8_-0.4$ AU near the 3:2 resonance with the previously-known 6 AU asteroidal belt and is aligned with the inner warped disk. The observations give a 4% posterior probability of a transit of the planet in late 2017.

@misc{macintosh2014gemini, abstract = {The Gemini Planet Imager (GPI) is a dedicated facility for directly imaging and spectroscopically characterizing extrasolar planets. It combines a very high-order adaptive optics system, a diffraction-suppressing coronagraph, and an integral field spectrograph with low spectral resolution but high spatial resolution. Every aspect of GPI has been tuned for maximum sensitivity to faint planets near bright stars. During first light observations, we achieved an estimated H band Strehl ratio of 0.89 and a 5-sigma contrast of $10^6$ at 0.75 arcseconds and $10^5$ at 0.35 arcseconds. Observations of Beta Pictoris clearly detect the planet, Beta Pictoris b, in a single 60-second exposure with minimal post-processing. Beta Pictoris b is observed at a separation of $434 \pm 6$ milli-arcseconds and position angle $211.8 \pm 0.5$ deg. Fitting the Keplerian orbit of Beta Pic b using the new position together with previous astrometry gives a factor of three improvement in most parameters over previous solutions. The planet orbits at a semi-major axis of $9.0^{+0.8}_{-0.4}$ AU near the 3:2 resonance with the previously-known 6 AU asteroidal belt and is aligned with the inner warped disk. The observations give a 4% posterior probability of a transit of the planet in late 2017.}, added-at = {2014-03-31T09:45:18.000+0200}, author = {Macintosh, Bruce and Graham, James R. and Ingraham, Patrick and Konopacky, Quinn and Marois, Christian and Perrin, Marshall and Poyneer, Lisa and Bauman, Brian and Barman, Travis and Burrows, Adam and Cardwell, Andrew and Chilcote, Jeffrey and De Rosa, Robert J. and Dillon, Daren and Doyon, Rene and Dunn, Jennifer and Erikson, Darren and Fitzgerald, Michael and Gavel, Donald and Goodsell, Stephen and Hartung, Markus and Hibon, Pascale and Kalas, Paul G. and Larkin, James and Maire, Jerome and Marchis, Franck and Marley, Mark and McBride, James and Millar-Blanchaer, Max and Morzinski, Katie and Norton, Andew and Oppenheimer, B. R. and Palmer, Dave and Patience, Jennifer and Pueyo, Laurent and Rantakyro, Fredrik and Sadakuni, Naru and Saddlemyer, Leslie and Savransky, Dmitry and Serio, Andrew and Soummer, Remi and Sivaramakrishnan, Anand and Song, Inseok and Thomas, Sandrine and Wallace, J. Kent and Wiktorowicz, Sloane and Wolff, Schuyler}, biburl = {https://www.bibsonomy.org/bibtex/21f17352ccc3a5d2d994807a251fc699f/miki}, description = {[1403.7520] The Gemini Planet Imager: First Light}, interhash = {798830dbd96f8c41c52e6df0b85c7e5d}, intrahash = {1f17352ccc3a5d2d994807a251fc699f}, keywords = {gemini imager planet}, note = {cite arxiv:1403.7520Comment: 9 pages, 5 figures, accepted for publication Proc. Natl. Acad. Sci}, timestamp = {2014-03-31T09:45:18.000+0200}, title = {The Gemini Planet Imager: First Light}, url = {http://arxiv.org/abs/1403.7520}, year = 2014 }