Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Gerard, Benjamin L."'
Autor:
Sanchez, Dominic F., Gerard, Benjamin L., Fernandez, Bautista R., Bauman, Brian, Hinz, Philip M.
Focal plane wavefront sensing techniques are generally limited to using imaging systems that have below 1% spectral bandwidths, due to the radial smearing of speckles from chromatic diffraction that causes optical image magnification over larger spec
Externí odkaz:
http://arxiv.org/abs/2407.12666
Autor:
Gerard, Benjamin L., Lemmer, Aaron, Fernandez, Bautista R., Xia, Xiaoxing, Laguna, Cesar, Kim, Mike, Ammons, Stephen Mark, Bauman, Brian, Poyneer, Lisa
Astronomical adaptive optics (AO) is a critical approach to enable ground-based diffraction-limited imaging and high contrast science, with the potential to enable habitable exoplanet imaging on future extremely large telescopes. However, AO systems
Externí odkaz:
http://arxiv.org/abs/2406.10363
Autor:
Sengupta, Aditya R., Diaz, Jordan, Gerard, Benjamin L., Jensen-Clem, Rebecca, Dillon, Daren, DeMartino, Matthew, Bundy, Kevin, Cetre, Sylvain, Chambouleyron, Vincent
Exoplanet direct imaging using adaptive optics (AO) is often limited by non-common path aberrations (NCPAs) and aberrations that are invisible to traditional pupil-plane wavefront sensors (WFSs). This can be remedied by focal-plane (FP) WFSs that cha
Externí odkaz:
http://arxiv.org/abs/2406.07771
Autor:
Chambouleyron, Vincent, Sengupta, Aditya, Salama, Maïssa, van Kooten, Maaike A. M, Gerard, Benjamin L., Haffert, Sebastiaan Y., Cetre, Sylvain, Dillon, Daren, Kupke, Renate, Jensen-Clem, Rebecca, Hinz, Phil, Macintosh, Bruce
Publikováno v:
A&A 681, A48 (2024)
Adaptive optics (AO) is a technique to improve the resolution of ground-based telescopes by correcting, in real-time, optical aberrations due to atmospheric turbulence and the telescope itself. With the rise of Giant Segmented Mirror Telescopes (GSMT
Externí odkaz:
http://arxiv.org/abs/2309.14283
Autor:
Soto, Javier Perez, Laguna, Cesar, Gerard, Benjamin L., Dattilo, Anne, Chambouleyron, Vincent, Jensen-Clem, Rebecca
Due to turbulence in the atmosphere images taken from ground-based telescopes become distorted. With adaptive optics (AO) images can be given greater clarity allowing for better observations with existing telescopes and are essential for ground-based
Externí odkaz:
http://arxiv.org/abs/2308.14855
Exoplanet imaging has thus far enabled studies of wide-orbit ($>$10 AU) giant planet ($>$2 Jupiter masses) formation and giant planet atmospheres, with future 30 meter-class Extremely Large Telescopes (ELTs) needed to image and characterize terrestri
Externí odkaz:
http://arxiv.org/abs/2308.05863
Autor:
Nielsen, Eric L., Rosa, Robert J. De, Rameau, Julien, Wang, Jason J., Esposito, Thomas M., Millar-Blanchaer, Maxwell A., Marois, Christian, Vigan, Arthur, Ammons, S. Mark, Artigau, Etienne, Bailey, Vanessa P., Blunt, Sarah, Bulger, Joanna, Chilcote, Jeffrey, Cotten, Tara, Doyon, René, Duchêne, Gaspard, Fabrycky, Daniel, Fitzgerald, Michael P., Follette, Katherine B., Gerard, Benjamin L., Goodsell, Stephen J., Graham, James R., Greenbaum, Alexandra Z., Hibon, Pascale, Hinkley, Sasha, Hung, Li-Wei, Ingraham, Patrick, Jensen-Clem, Rebecca, Kalas, Paul, Konopacky, Quinn, Larkin, James E., Macintosh, Bruce, Maire, Jérôme, Marchis, Franck, Metchev, Stanimir, Morzinski, Katie M., Murray-Clay, Ruth A., Oppenheimer, Rebecca, Palmer, David, Patience, Jennifer, Perrin, Marshall, Poyneer, Lisa, Pueyo, Laurent, Rafikov, Roman R., Rajan, Abhijith, Rantakyrö, Fredrik T., Ruffio, Jean-Baptiste, Savransky, Dmitry, Schneider, Adam C., Sivaramakrishnan, Anand, Song, Inseok, Soummer, Remi, Thomas, Sandrine, Wallace, J. Kent, Ward-Duong, Kimberly, Wiktorowicz, Sloane, Wolff, Schuyler
We present evidence that the recently discovered, directly imaged planet HD 131399 Ab is a background star with nonzero proper motion. From new JHK1L' photometry and spectroscopy obtained with the Gemini Planet Imager, VLT/SPHERE, and Keck/NIRC2, and
Externí odkaz:
http://hdl.handle.net/10150/626174
http://arizona.openrepository.com/arizona/handle/10150/626174
http://arizona.openrepository.com/arizona/handle/10150/626174
Autor:
Ruffio, Jean-Baptiste, Macintosh, Bruce, Wang, Jason J., Pueyo, Laurent, Nielsen, Eric L., Rosa, Robert J. De, Czekala, Ian, Marley, Mark S., Arriaga, Pauline, Bailey, Vanessa P., Barman, Travis, Bulger, Joanna, Chilcote, Jeffrey, Cotten, Tara, Doyon, Rene, Duchene, Gaspard, Fitzgerald, Michael P., Follette, Katherine B., Gerard, Benjamin L., Goodsell, Stephen J., Graham, James R., Greenbaum, Alexandra Z., Hibon, Pascale, Hung, Li-Wei, Ingraham, Patrick, Kalas, Paul, Konopacky, Quinn, Larkin, James E., Maire, Jerome, Marchis, Franck, Marois, Christian, Metchev, Stanimir, Millar-Blanchaer, Maxwell A., Morzinski, Katie M., Oppenheimer, Rebecca, Palmer, David, Patience, Jennifer, Perrin, Marshall, Poyneer, Lisa, Rajan, Abhijith, Rameau, Julien, Rantakyro, Fredrik T., Savransky, Dmitry, Schneider, Adam C., Sivaramakrishnan, Anand, Song, Inseok, Soummer, Remi, Thomas, Sandrine, Wallace, J. Kent, Ward-Duong, Kimberly, Wiktorowicz, Sloane, Wolff, Schuyler
We present a new matched-filter algorithm for direct detection of point sources in the immediate vicinity of bright stars. The stellar point-spread function (PSF) is first subtracted using a Karhunen-Love image processing (KLIP) algorithm with angula
Externí odkaz:
http://hdl.handle.net/10150/624437
http://arizona.openrepository.com/arizona/handle/10150/624437
http://arizona.openrepository.com/arizona/handle/10150/624437
Autor:
Zhang, Stella Yimiao, Duchêne, Gaspard, De Rosa, Robert J., Ansdell, Megan, Konopacky, Quinn, Esposito, Thomas, Chiang, Eugene, Rice, Malena, Matthews, Brenda, Kalas, Paul, Macintosh, Bruce, Marchis, Franck, Metchev, Stan, Patience, Jenny, Rameau, Julien, Ward-Duong, Kimberly, Wolff, Schuyler, Fitzgerald, Michael P., Bailey, Vanessa P., Barman, Travis S., Bulger, Joanna, Chen, Christine H., Chilcotte, Jeffrey K., Cotten, Tara, Doyon, René, Follette, Katherine B., Gerard, Benjamin L., Goodsell, Stephen, Graham, James R., Greenbaum, Alexandra Z., Hibon, Pascale, Hung, Li-Wei, Ingraham, Patrick, Maire, Jérôme, Marley, Mark S., Marois, Christian, Millar-Blanchaer, Maxwell A., Nielsen, Eric L., Oppenheimer, Rebecca, Palmer, David W., Perrin, Marshall D., Poyneer, Lisa A., Pueyo, Laurent, Rajan, Abhijith, Rantakyrö, Fredrik T., Ruffio, Jean-Baptiste, Savransky, Dmitry, Schneider, Adam C., Sivaramakrishnan, Anand, Song, Inseok, Soummer, Remi, Thomas, Sandrine, Wang, Jason J., Wiktorowicz, Sloane J.
The HR 2562 system is a rare case where a brown dwarf companion resides in a cleared inner hole of a debris disk, offering invaluable opportunities to study the dynamical interaction between a substellar companion and a dusty disk. We present the fir
Externí odkaz:
http://arxiv.org/abs/2302.04893
Autor:
Millar-Blanchaer, Maxwell A., Wang, Jason J., Kalas, Paul, Graham, James R., Duchêne, Gaspard, Nielsen, Eric L., Perrin, Marshall, Moon, Dae-Sik, Padgett, Deborah, Metchev, Stanimir, Ammons, S. Mark, Bailey, Vanessa P., Barman, Travis, Bruzzone, Sebastian, Bulger, Joanna, Chen, Christine H., Chilcote, Jeffrey, Cotten, Tara, Rosa, Robert J. De, Doyon, Rene, Draper, Zachary H., Esposito, Thomas M., Fitzgerald, Michael P., Follette, Katherine B., Gerard, Benjamin L., Greenbaum, Alexandra Z., Hibon, Pascale, Hinkley, Sasha, Hung, Li-Wei, Ingraham, Patrick, Johnson-Groh, Mara, Konopacky, Quinn, Larkin, James E., Macintosh, Bruce, Maire, Jérôme, Marchis, Franck, Marley, Mark S., Marois, Christian, Matthews, Brenda C., Oppenheimer, Rebecca, Palmer, David, Patience, Jennifer, Poyneer, Lisa, Pueyo, Laurent, Rajan, Abhijith, Rameau, Julien, Rantakyrö, Fredrik T., Savransky, Dmitry, Schneider, Adam C., Sivaramakrishnan, Anand, Song, Inseok, Soummer, Remi, Thomas, Sandrine, Vega, David, Wallace, J. Kent, Ward-Duong, Kimberly, Wiktorowicz, Sloane, Wolff, Schuyler
We present H-band near-infrared polarimetric imaging observations of the F5V star HD 157587 obtained with the Gemini Planet Imager (GPI) that reveal the debris disk as a bright ring structure at a separation of similar to 80-100 au. The new GPI data
Externí odkaz:
http://hdl.handle.net/10150/624743
http://arizona.openrepository.com/arizona/handle/10150/624743
http://arizona.openrepository.com/arizona/handle/10150/624743