Zobrazeno 1 - 10
of 19 452
pro vyhledávání: '"Liberman, A"'
Autor:
Wang, Jason J., Mawet, Dimitri, Xuan, Jerry W., Hsu, Chih-Chun, Ruffio, Jean-Baptiste, Horstman, Katelyn, Xin, Yinzi, Delorme, Jacques-Robert, Jovanovic, Nemanja, Zhang, Yapeng, Finnerty, Luke, Baker, Ashley, Bartos, Randall, Blake, Geoffrey A., Calvin, Benjamin, Cetre, Sylvain, Doppmann, Gregory W., Echeverri, Daniel, Fitzgerald, Michael P., Liberman, Joshua, Lopez, Ronald, Morris, Evan, Pezzato-Rovner, Jacklyn, Sappey, Ben, Schofield, Tobias, Skemer, Andrew, Wallace, J. Kent, Wang, Ji
The Keck Planet Imager and Characterizer (KPIC), a series of upgrades to the Keck II Adaptive Optics System and Instrument Suite, aims to demonstrate high-resolution spectroscopy of faint exoplanets that are spatially resolved from their host stars.
Externí odkaz:
http://arxiv.org/abs/2406.15028
Autor:
Qian, Chengeng, Liberman, Mikhail A.
The effects of pressure waves-flame collisions and tube aspect ratio on flame evolution and the formation of tulip and distorted tulip flames were investigated using numerical simulations of the fully compressible Navier-Stokes equations coupled with
Externí odkaz:
http://arxiv.org/abs/2406.16950
Autor:
Xuan, Jerry W., Hsu, Chih-Chun, Finnerty, Luke, Wang, Jason J., Ruffio, Jean-Baptiste, Zhang, Yapeng, Knutson, Heather A., Mawet, Dimitri, Mamajek, Eric E., Inglis, Julie, Wallack, Nicole L., Bryan, Marta L., Blake, Geoffrey A., Mollière, Paul, Hejazi, Neda, Baker, Ashley, Bartos, Randall, Calvin, Benjamin, Cetre, Sylvain, Delorme, Jacques-Robert, Doppmann, Greg, Echeverri, Daniel, Fitzgerald, Michael P., Jovanovic, Nemanja, Liberman, Joshua, López, Ronald A., Morris, Evan, Pezzato, Jacklyn, Sappey, Ben, Schofield, Tobias, Skemer, Andrew, Wallace, James K., Wang, Ji, Agrawal, Shubh, Horstman, Katelyn
Using Keck Planet Imager and Characterizer (KPIC) high-resolution ($R$~35000) spectroscopy from 2.29-2.49 $\mu$m, we present uniform atmospheric retrievals for eight young substellar companions with masses of ~10-30 $M_\textrm{Jup}$, orbital separati
Externí odkaz:
http://arxiv.org/abs/2405.13128
Autor:
Morris, Evan C., Wang, Jason J., Hsu, Chih-Chun, Ruffio, Jean-Baptiste, Xuan, Jerry W., Delorme, Jacques-Robert, Hood, Callie, Bryan, Marta L., Martin, Emily C., Pezzato, Jacklyn, Mawet, Dimitri, Skemer, Andrew, Baker, Ashley, Bartos, Randall, Calvin, Benjamin, Cetre, Sylvain, Doppmann, Greg, Echeverri, Daniel, Finnerty, Luke, Fitzgerald, Michael P., Jovanovic, Nemanja, Liberman, Joshua, Lopez, Ronald, Sappey, Ben, Schofield, Tobias, Wallace, J. Kent, Wang, Ji
We used the Keck Planet Imager and Characterizer (KPIC) to obtain high-resolution (R$\sim$35,000) K-band spectra of kappa Andromedae b, a planetary-mass companion orbiting the B9V star, kappa Andromedae A. We characterized its spin, radial velocity,
Externí odkaz:
http://arxiv.org/abs/2405.13125
Autor:
Hsu, Chih-Chun, Wang, Jason J., Xuan, Jerry W., Ruffio, Jean-Baptiste, Echeverri, Daniel, Xin, Yinzi, Liberman, Joshua, Finnerty, Luke, Morris, Evan, Horstman, Katelyn, Sappey, Ben, Doppmann, Gregory W., Mawet, Dimitri, Jovanovic, Nemanja, Fitzgerald, Michael P., Delorme, Jacques-Robert, Wallace, J. Kent, Baker, Ashley, Bartos, Randall, Blake, Geoffrey A., Calvin, Benjamin, Cetre, Sylvain, López, Ronald A., Pezzato, Jacklyn, Schofield, Tobias, Skemer, Andrew, Wang, Ji
We present the projected rotational velocity and molecular abundances for HD 33632 Ab obtained via Keck Planet Imager and Characterizer high-resolution spectroscopy. HD 33632 Ab is a nearby benchmark brown dwarf companion at a separation of $\sim$20
Externí odkaz:
http://arxiv.org/abs/2405.08312
Autor:
Liberman, Joshua, Llop-Sayson, Jorge, Bertrou-Cantou, Arielle, Mawet, Dimitri, Desai, Niyati, Haffert, Sebastiaan Y, Riggs, A J Eldorado
Connecting a coronagraph instrument to a spectrograph via a single-mode optical fiber is a promising technique for characterizing the atmospheres of exoplanets with ground and space-based telescopes. However, due to the small separation and extreme f
Externí odkaz:
http://arxiv.org/abs/2405.05501
Autor:
Salama, Maissa, Guthery, Charlotte, Chambouleyron, Vincent, Jensen-Clem, Rebecca, Wallace, J. Kent, Delorme, Jacques-Robert, Troy, Mitchell, Wenger, Tobias, Echeverri, Daniel, Finnerty, Luke, Jovanovic, Nemanja, Liberman, Joshua, Lopez, Ronald A., Mawet, Dimitri, Morris, Evan C., van Kooten, Maaike, Wang, Jason J., Wizinowich, Peter, Xin, Yinzi, Xuan, Jerry
We present the first on-sky segmented primary mirror closed-loop piston control using a Zernike wavefront sensor (ZWFS) installed on the Keck II telescope. Segment co-phasing errors are a primary contributor to contrast limits on Keck and will be nec
Externí odkaz:
http://arxiv.org/abs/2404.08728
Autor:
Ó, Clarissa R. Do, Sappey, Ben, Konopacky, Quinn M., Ruffio, Jean-Baptiste, O'Neil, Kelly K., Do, Tuan, Martinez, Gregory, Barman, Travis S., Nguyen, Jayke S., Xuan, Jerry W., Theissen, Christopher A., Blunt, Sarah, Thompson, William, Hsu, Chih-Chun, Baker, Ashley, Bartos, Randall, Blake, Geoffrey A., Calvin, Benjamin, Cetre, Sylvain, Delorme, Jacques-Robert, Doppmann, Greg, Echeverri, Daniel, Finnerty, Luke, Fitzgerald, Michael P., Inglis, Julie, Jovanovic, Nemanja, López, Ronald A., Mawet, Dimitri, Morris, Evan, Pezzato, Jacklyn, Schofield, Tobias, Skemer, Andrew, Wallace, J. Kent, Wang, Jason J., Wang, Ji, Liberman, Joshua
The 1RXS J034231.8+121622 system consists of an M dwarf primary and a directly imaged low-mass stellar companion. We use high resolution spectroscopic data from Keck/KPIC to estimate the objects' atmospheric parameters and radial velocities (RVs). Us
Externí odkaz:
http://arxiv.org/abs/2404.07742
Autor:
Echeverri, Daniel, Xuan, Jerry W., Monnier, John D., Delorme, Jacques-Robert, Wang, Jason J., Jovanovic, Nemanja, Horstman, Katelyn, Ruane, Garreth, Mennesson, Bertrand, Serabyn, Eugene, Mawet, Dimitri, Wallace, J. Kent, Hillman, Sofia, Baker, Ashley, Bartos, Randall, Calvin, Benjamin, Cetre, Sylvain, Doppmann, Greg, Finnerty, Luke, Fitzgerald, Michael P., Hsu, Chih-Chun, Liberman, Joshua, Lopez, Ronald, Millar-Blanchaer, Maxwell, Morris, Evan, Pezzato, Jacklyn, Ruffio, Jean-Baptiste, Sappey, Ben, Schofield, Tobias, Skemer, Andrew J., Wang, Ji, Xin, Yinzi, Anugu, Narsireddy, Chhabra, Sorabh, Ibrahim, Noura, Kraus, Stefan, Schaefer, Gail H., Lanthermann, Cyprien
Vortex fiber nulling (VFN) is a technique for detecting and characterizing faint companions at small separations from their host star. A near-infrared ($\sim2.3 \mu$m) VFN demonstrator mode was deployed on the Keck Planet Imager and Characterizer (KP
Externí odkaz:
http://arxiv.org/abs/2403.17295
Autor:
Liberman, Asaf, Levy, Oron, Shahi, Soroush, Park, Cori Tymoszek, Ralph, Mike, Kang, Richard, Bedri, Abdelkareem, Laput, Gierad
Personal devices have adopted diverse authentication methods, including biometric recognition and passcodes. In contrast, headphones have limited input mechanisms, depending solely on the authentication of connected devices. We present Moonwalk, a no
Externí odkaz:
http://arxiv.org/abs/2402.08451