Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Jerry W Xuan"'
Autor:
Jerry W. Xuan, Marshall D. Perrin, Dimitri Mawet, Heather A. Knutson, Sagnick Mukherjee, Yapeng Zhang, Kielan K. W. Hoch, Jason J. Wang, Julie Inglis, Nicole L. Wallack, Jean-Baptiste Ruffio
Publikováno v:
The Astrophysical Journal Letters, Vol 977, Iss 2, p L32 (2024)
We present JWST/Mid Infrared Instrument (MIRI) low-resolution spectroscopy (4.75–14 μ m) of the first known substellar companion, Gliese 229Bab, which was recently resolved into a tight binary brown dwarf. Previous atmospheric retrieval studies mo
Externí odkaz:
https://doaj.org/article/aa44aea58fe846c08471f982f7d1222d
Autor:
Daniel Echeverri, Jerry W. Xuan, John D. Monnier, Jacques-Robert Delorme, Jason J. Wang, Nemanja Jovanovic, Katelyn Horstman, Garreth Ruane, Bertrand Mennesson, Eugene Serabyn, Dimitri Mawet, J. Kent Wallace, Sofia Hillman, Ashley Baker, Randall Bartos, Benjamin Calvin, Sylvain Cetre, Greg Doppmann, Luke Finnerty, Michael P. Fitzgerald, Chih-Chun Hsu, Joshua Liberman, Ronald López, Maxwell Millar-Blanchaer, Evan Morris, Jacklyn Pezzato, Jean-Baptiste Ruffio, Ben Sappey, Tobias Schofield, Andrew J. Skemer, Ji Wang, Yinzi Xin, Narsireddy Anugu, Sorabh Chhabra, Noura Ibrahim, Stefan Kraus, Gail H. Schaefer, Cyprien Lanthermann
Publikováno v:
The Astrophysical Journal Letters, Vol 965, Iss 2, p L15 (2024)
Vortex fiber nulling (VFN) is a technique for detecting and characterizing faint companions at small separations from their host star. A near-infrared (∼2.3 μ m) VFN demonstrator mode was deployed on the Keck Planet Imager and Characterizer (KPIC)
Externí odkaz:
https://doaj.org/article/29bcb249bb7044ffb9d1f1f9e09b3bc6
Autor:
Jingwen Zhang, Daniel Huber, Lauren M. Weiss, Jerry W. Xuan, Jennifer A. Burt, Fei Dai, Nicholas Saunders, Erik A. Petigura, Ryan A. Rubenzahl, Joshua N. Winn, Sharon X. Wang, Judah Van Zandt, Max Brodheim, Zachary R. Claytor, Ian Crossfield, William Deich, Benjamin J. Fulton, Steven R. Gibson, Samuel Halverson, Grant M. Hill, Bradford Holden, Aaron Householder, Andrew W. Howard, Howard Isaacson, Stephen Kaye, Kyle Lanclos, Russ R. Laher, Jack Lubin, Joel Payne, Arpita Roy, Christian Schwab, Abby P. Shaum, Josh Walawender, Edward Wishnow, Sherry Yeh
Publikováno v:
The Astronomical Journal, Vol 168, Iss 6, p 295 (2024)
Characterizing outer companions to hot Jupiters plays a crucial role in deciphering their origins. We present the discovery of a long-period giant planet, HD 118203 c ( ${m}_{c}={11.79}_{-0.63}^{+0.69}\ {M}_{{\rm{J}}}$ , ${a}_{c}={6.28}_{-0.11}^{+0.1
Externí odkaz:
https://doaj.org/article/8bcb1c2ad69a430189db32aeca3cda11
Autor:
Yapeng Zhang, Darío González Picos, Sam de Regt, Ignas A. G. Snellen, Siddharth Gandhi, Christian Ginski, Aurora Y. Kesseli, Rico Landman, Paul Mollière, Evert Nasedkin, Alejandro Sánchez-López, Tomas Stolker, Julie Inglis, Heather A. Knutson, Dimitri Mawet, Nicole Wallack, Jerry W. Xuan
Publikováno v:
The Astronomical Journal, Vol 168, Iss 6, p 246 (2024)
High-resolution spectroscopic characterization of young super-Jovian planets enables precise constraints on elemental and isotopic abundances of their atmospheres. As part of the ESO SupJup Survey, we present high-resolution spectral observations of
Externí odkaz:
https://doaj.org/article/dd38314b7ab242519cfefa423e992d73
Autor:
Aniket Sanghi, Jerry W. Xuan, Jason J. Wang, Dimitri Mawet, Brendan P. Bowler, Henry Ngo, Marta L. Bryan, Garreth Ruane, Olivier Absil, Elsa Huby
Publikováno v:
The Astronomical Journal, Vol 168, Iss 5, p 215 (2024)
We present Super-RDI, a unique framework for the application of reference star differential imaging (RDI) to Keck/NIRC2 high-contrast imaging observations with the vortex coronagraph. Super-RDI combines frame selection and signal-to-noise ratio (S/N)
Externí odkaz:
https://doaj.org/article/4bc6b11b1a8b45b2a597875b2c4d4245
Autor:
Katelyn Horstman, Jean-Baptiste Ruffio, Konstantin Batygin, Dimitri Mawet, Ashley Baker, Chih-Chun Hsu, Jason J. Wang, Ji Wang, Sarah Blunt, Jerry W. Xuan, Yinzi Xin, Joshua Liberman, Shubh Agrawal, Quinn M. Konopacky, Geoffrey A. Blake, Clarissa R. Do Ó, Randall Bartos, Charlotte Z. Bond, Benjamin Calvin, Sylvain Cetre, Jacques-Robert Delorme, Greg Doppmann, Daniel Echeverri, Luke Finnerty, Michael P. Fitzgerald, Nemanja Jovanovic, Ronald López, Emily C. Martin, Evan Morris, Jacklyn Pezzato, Garreth Ruane, Ben Sappey, Tobias Schofield, Andrew Skemer, Taylor Venenciano, J. Kent Wallace, Nicole L. Wallack, Peter Wizinowich
Publikováno v:
The Astronomical Journal, Vol 168, Iss 4, p 175 (2024)
GQ Lup B is one of the few substellar companions with a detected cicumplanetary disk (CPD). Observations of the CPD suggest the presence of a cavity, possibly formed by an exosatellite. Using the Keck Planet Imager and Characterizer (KPIC), a high-co
Externí odkaz:
https://doaj.org/article/c73c3afcce94454caf749c0fe29a4ed0
Autor:
Evan C. Morris, Jason J. Wang, Chih-Chun Hsu, Jean-Baptiste Ruffio, Jerry W. Xuan, Jacques-Robert Delorme, Callie Hood, Marta L. Bryan, Emily C. Martin, Jacklyn Pezzato, Dimitri Mawet, Andrew Skemer, Ashley Baker, Randall Bartos, Benjamin Calvin, Sylvain Cetre, Greg Doppmann, Daniel Echeverri, Luke Finnerty, Michael P. Fitzgerald, Nemanja Jovanovic, Joshua Liberman, Ronald Lopez, Ben Sappey, Tobias Schofield, J. Kent Wallace, Ji Wang
Publikováno v:
The Astronomical Journal, Vol 168, Iss 4, p 144 (2024)
We used the Keck Planet Imager and Characterizer to obtain high-resolution ( R ∼ 35,000) K -band spectra of κ Andromedae b, a planetary-mass companion orbiting the B9V star, κ Andromedae A. We characterized its spin, radial velocity, and bulk atm
Externí odkaz:
https://doaj.org/article/f0de12ad69ef47029568e842190bd70d
Autor:
Yapeng Zhang, Jerry W. Xuan, Dimitri Mawet, Jason J. Wang, Chih-Chun Hsu, Jean-Bapiste Ruffio, Heather A. Knutson, Julie Inglis, Geoffrey A. Blake, Yayaati Chachan, Katelyn Horstman, Ashley Baker, Randall Bartos, Benjamin Calvin, Sylvain Cetre, Jacques-Robert Delorme, Greg Doppmann, Daniel Echeverri, Luke Finnerty, Michael P. Fitzgerald, Nemanja Jovanovic, Joshua Liberman, Ronald A. López, Evan Morris, Jacklyn Pezzato, Ben Sappey, Tobias Schofield, Andrew Skemer, J. Kent Wallace, Ji Wang, Clarissa R. Do Ó
Publikováno v:
The Astronomical Journal, Vol 168, Iss 3, p 131 (2024)
Young, self-luminous super-Jovian companions discovered by direct imaging provide a challenging test for planet formation and evolution theories. By spectroscopically characterizing the atmospheric compositions of these super-Jupiters, we can constra
Externí odkaz:
https://doaj.org/article/c1757b3ebae64785b7520f2bc7f279d7
Autor:
Nicole L. Wallack, Jean-Baptiste Ruffio, Garreth Ruane, Bin B. Ren, Jerry W. Xuan, Marion Villenave, Dimitri Mawet, Karl Stapelfeldt, Jason J. Wang, Michael C. Liu, Olivier Absil, Carlos Alvarez, Jaehan Bae, Charlotte Bond, Michael Bottom, Benjamin Calvin, Élodie Choquet, Valentin Christiaens, Therese Cook, Bruno Femenía Castellá, Carlos Gomez Gonzalez, Greta Guidi, Elsa Huby, Joel Kastner, Heather A. Knutson, Tiffany Meshkat, Henry Ngo, Sam Ragland, Maddalena Reggiani, Luca Ricci, Eugene Serabyn, Taichi Uyama, Jonathan P. Williams, Peter Wizinowich, Zoe Zawol, Shangjia Zhang, Zhaohuan Zhu
Publikováno v:
The Astronomical Journal, Vol 168, Iss 2, p 78 (2024)
Recent Atacama Large Millimeter/submillimeter Array (ALMA) observations of protoplanetary disks in the millimeter continuum have shown a variety of radial gaps, cavities, and spiral features. These substructures may be signposts for ongoing planet fo
Externí odkaz:
https://doaj.org/article/75b89d255bec43c38686d82063430905
Autor:
Chih-Chun Hsu, Jason J. Wang, Jerry W. Xuan, Jean-Baptiste Ruffio, Evan Morris, Daniel Echeverri, Yinzi Xin, Joshua Liberman, Luke Finnerty, Katelyn Horstman, Ben Sappey, Gregory W. Doppmann, Dimitri Mawet, Nemanja Jovanovic, Michael P. Fitzgerald, Jacques-Robert Delorme, J. Kent Wallace, Ashley Baker, Randall Bartos, Geoffrey A. Blake, Benjamin Calvin, Sylvain Cetre, Ronald A. López, Jacklyn Pezzato, Tobias Schofield, Andrew Skemer, Ji Wang
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 9 (2024)
We present the projected rotational velocity and molecular abundances for HD 33632 Ab obtained via Keck Planet Imager and Characterizer (KPIC) high-resolution spectroscopy. HD 33632 Ab is a nearby benchmark brown dwarf companion at a separation of
Externí odkaz:
https://doaj.org/article/62228735e3354be4a934a22a20810b30