Zobrazeno 1 - 10
of 208
pro vyhledávání: '"John P. Wisniewski"'
Autor:
Megan Delamer, Shubham Kanodia, Caleb I. Cañas, Simon Müller, Ravit Helled, Andrea S. J. Lin, Jessica E. Libby-Roberts, Arvind F. Gupta, Suvrath Mahadevan, Johanna Teske, R. Paul Butler, Samuel W. Yee, Jeffrey D. Crane, Stephen Shectman, David Osip, Yuri Beletsky, Andrew Monson, Leslie Hebb, Luke C. Powers, John P. Wisniewski, Jaime A. Alvarado-Montes, Chad F. Bender, Jiayin Dong, Te Han, Joe P. Ninan, Paul Robertson, Arpita Roy, Christian Schwab, Guđmundur Stefánsson, Jason T. Wright
Publikováno v:
The Astrophysical Journal Letters, Vol 962, Iss 2, p L22 (2024)
We confirm TOI-4201 b as a transiting Jovian-mass planet orbiting an early M dwarf discovered by the Transiting Exoplanet Survey Satellite. Using ground-based photometry and precise radial velocities from NEID and the Planet Finder Spectrograph, we m
Externí odkaz:
https://doaj.org/article/9109bd2a3664411b840237a62f27c616
Autor:
Kellen Lawson, Joshua E. Schlieder, Jarron M. Leisenring, Ell Bogat, Charles A. Beichman, Geoffrey Bryden, András Gáspár, Tyler D. Groff, Michael W. McElwain, Michael R. Meyer, Thomas Barclay, Per Calissendorff, Matthew De Furio, Marie Ygouf, Anthony Boccaletti, Thomas P. Greene, John Krist, Peter Plavchan, Marcia J. Rieke, Thomas L. Roellig, John Stansberry, John P. Wisniewski, Erick T. Young
Publikováno v:
The Astronomical Journal, Vol 166, Iss 4, p 150 (2023)
High-contrast imaging of debris disk systems permits us to assess the composition and size distribution of circumstellar dust, to probe recent dynamical histories, and to directly detect and characterize embedded exoplanets. Observations of these sys
Externí odkaz:
https://doaj.org/article/d03e13e40ce945f58654cc325204c9ab
Autor:
Michael L. Sitko, Ray W. Russell, Zachary C. Long, Korash Assani, Monika Pikhartova, Ammar Bayyari, Carol A. Grady, Carey M. Lisse, Massimo Marengo, John P. Wisniewski, William C. Danchi
Publikováno v:
The Astronomical Journal, Vol 166, Iss 1, p 24 (2023)
We have examined internight variability of K2-discovered “dippers” that are not close to being viewed edge-on, as determined from previously reported ALMA images, using the SpeX spectrograph on NASA’s Infrared Telescope Facility. The three obje
Externí odkaz:
https://doaj.org/article/017ddd0c5290496dbec90b2b0f24e32b
Autor:
Maria C. Schutte, Leslie Hebb, John P. Wisniewski, Caleb I. Cañas, Jessica E. Libby-Roberts, Andrea S. J. Lin, Paul Robertson, Gumundur Stefánsson
Publikováno v:
The Astronomical Journal, Vol 166, Iss 3, p 92 (2023)
Using simultaneous multi-filter observations during the transit of an exoplanet around a K dwarf star, we determine the temperature of a starspot through modeling the radius and position with wavelength-dependent spot contrasts. We model the spot usi
Externí odkaz:
https://doaj.org/article/4ea384c4603a4d5db22fb15280ffb3ff
Autor:
Isaiah I. Tristan, Yuta Notsu, Adam F. Kowalski, Alexander Brown, John P. Wisniewski, Rachel A. Osten, Eliot H. Vrijmoet, Graeme L. White, Brad D. Carter, Carol A. Grady, Todd J. Henry, Rodrigo H. Hinojosa, Jamie R. Lomax, James E. Neff, Leonardo A. Paredes, Jack Soutter
Publikováno v:
The Astrophysical Journal, Vol 951, Iss 1, p 33 (2023)
We present light curves and flares from a 7 day, multiwavelength observational campaign of AU Mic, a young and active dM1e star with exoplanets and a debris disk. We report on 73 unique flares between the X-ray to optical data. We use high-time-resol
Externí odkaz:
https://doaj.org/article/460a9b9850c84db4a948fb6b96f4fcae
Autor:
Teruyuki Hirano, Fei Dai, John H. Livingston, Sascha Grziwa, Kristine W. F. Lam, Yui Kasagi, Norio Narita, Hiroyuki Tako Ishikawa, Kohei Miyakawa, Luisa M. Serrano, Yuji Matsumoto, Eiichiro Kokubo, Tadahiro Kimura, Masahiro Ikoma, Joshua N. Winn, John P. Wisniewski, Hiroki Harakawa, Huan-Yu Teng, William D. Cochran, Akihiko Fukui, Davide Gandolfi, Eike W. Guenther, Yasunori Hori, Kai Ikuta, Kiyoe Kawauchi, Emil Knudstrup, Judith Korth, Takayuki Kotani, Vigneshwaran Krishnamurthy, Tomoyuki Kudo, Takashi Kurokawa, Masayuki Kuzuhara, Rafael Luque, Mayuko Mori, Jun Nishikawa, Masashi Omiya, Jaume Orell-Miquel, Enric Palle, Carina M. Persson, Seth Redfield, Eugene Serabyn, Alexis M. S. Smith, Aoi Takahashi, Takuya Takarada, Akitoshi Ueda, Vincent Van Eylen, Sébastien Vievard, Motohide Tamura, Bun’ei Sato
Publikováno v:
The Astronomical Journal, Vol 165, Iss 3, p 131 (2023)
We report on the discovery of an Earth-sized transiting planet ( R _p = 1.015 ± 0.051 R _⊕ ) in a P = 4.02 day orbit around K2-415 (EPIC 211414619), an M5V star at 22 pc. The planet candidate was first identified by analyzing the light-curve data
Externí odkaz:
https://doaj.org/article/9f7cfa332b5240599861736e80a45a68
Autor:
John P. Wisniewski, Andrei V. Berdyugin, Svetlana V. Berdyugina, William C. Danchi, Ruobing Dong, René D. Oudmaijer, Vladimir S. Airapetian, Sean D. Brittain, Ken Gayley, Richard Ignace, Maud Langlois, Kellen D. Lawson, Jamie R. Lomax, Evan A. Rich, Motohide Tamura, Jorick S. Vink, Paul A. Scowen
Publikováno v:
Astrophysics and Space Science. 367
Polstar is a proposed NASA MIDEX mission that would feature a high resolution UV spectropolarimeter capable of measure all four Stokes parameters onboard a 60cm telescope. The mission would pioneer the field of time-domain UV spectropolarimetry. Time
Autor:
Taichi Uyama, Michihiro Takami, Gabriele Cugno, Vincent Deo, Olivier Guyon, Jun Hashimoto, Julien Lozi, Barnaby Norris, Motohide Tamura, Sebastien Vievard, Hans Moritz Günther, P. Christian Schneider, Eiji Akiyama, Tracy L. Beck, Thayne Currie, Klaus Hodapp, Jungmi Kwon, Satoshi Mayama, Youichi Ohyama, Tae-Soo Pyo, John P. Wisniewski
Publikováno v:
The Astronomical Journal, 163 (6)
We present multiepoch observations of the RY Tau jet for H alpha and [Fe ii] 1.644 mu m emission lines obtained with the Subaru Coronagraphic Extreme-AO and Visible Aperture Masking Polarimetric Imager for Resolved Exoplanetary Structures (VAMPIRES),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7aff97fd150040264242008755fbeb3d
https://resolver.caltech.edu/CaltechAUTHORS:20220517-214234864
https://resolver.caltech.edu/CaltechAUTHORS:20220517-214234864
Autor:
Kellen Lawson, Thayne Currie, John P. Wisniewski, Tyler D. Groff, Michael W. McElwain, Joshua E. Schlieder
High-contrast imaging presents us with the opportunity to study circumstellar disks and the planets still embedded within them -- providing key insights into the formation and evolution of planetary systems. However, the post-processing techniques th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9adfaf09f669be9a115761f03482ed9
Autor:
Kellen Lawson, Thayne Currie, John P. Wisniewski, Motohide Tamura, Jean-Charles Augereau, Timothy D. Brandt, Olivier Guyon, N. Jeremy Kasdin, Tyler D. Groff, Julien Lozi, Vincent Deo, Sebastien Vievard, Jeffrey Chilcote, Nemanja Jovanovic, Frantz Martinache, Nour Skaf, Thomas Henning, Gillian Knapp, Jungmi Kwon, Michael W. McElwain, Tae-Soo Pyo, Michael L. Sitko, Taichi Uyama, Kevin Wagner
Publikováno v:
The Astronomical Journal
The Astronomical Journal, American Astronomical Society, 2021, 162 (6), pp.293. ⟨10.3847/1538-3881/ac2823⟩
The Astronomical Journal, American Astronomical Society, 2021, 162 (6), pp.293. ⟨10.3847/1538-3881/ac2823⟩
We present the first multi-wavelength (near-infrared; $1.1 - 2.4$ $\mu m$) imaging of HD 36546's debris disk, using the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system coupled with the Coronagraphic High Angular Resolution Imaging Spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e13237170e65c2fb4d18c05a3a1d49ec
https://hal.archives-ouvertes.fr/hal-03518281
https://hal.archives-ouvertes.fr/hal-03518281