Zobrazeno 1 - 10
of 293
pro vyhledávání: '"Laird M Close"'
Autor:
Mia S. Lundkvist, Hans Kjeldsen, Timothy R. Bedding, Mark J. McCaughrean, R. Paul Butler, Ditte Slumstrup, Tiago L. Campante, Conny Aerts, Torben Arentoft, Hans Bruntt, Cátia V. Cardoso, Fabien Carrier, Laird M. Close, João Gomes da Silva, Thomas Kallinger, Robert R. King, Yaguang Li, Simon J. Murphy, Jakob L. Rørsted, Dennis Stello
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 2, p 110 (2024)
We have detected solar-like oscillations in the mid-K-dwarf ϵ Indi A, making it the coolest dwarf to have measured oscillations. The star is noteworthy for harboring a pair of brown dwarf companions and a Jupiter-type planet. We observed ϵ Indi A d
Externí odkaz:
https://doaj.org/article/2b97a4f1ec664b74ae4619e116657184
Autor:
Jay K. Kueny, Alycia J. Weinberger, Jared R. Males, Katie M. Morzinski, Laird M. Close, Katherine B. Follette, Philip M. Hinz
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 1, p 77 (2024)
We present resolved images of the inner disk component around HD 141569A using the Magellan adaptive optics system with the Clio2 1–5 μ m camera, offering a glimpse of a complex system thought to be in a short evolutionary phase between protoplane
Externí odkaz:
https://doaj.org/article/323b88aa00274cc0b606856a8be92e9a
Autor:
Yifan Zhou, Brendan P. Bowler, Haifeng Yang, Aniket Sanghi, Gregory J. Herczeg, Adam L. Kraus, Jaehan Bae, Feng Long, Katherine B. Follette, Kimberly Ward-Duong, Zhaohuan Zhu, Lauren Biddle, Laird M. Close, Lillian Yushu Jiang, Ya-Lin Wu
Publikováno v:
The Astronomical Journal, Vol 166, Iss 6, p 220 (2023)
The proposed protoplanet AB Aur b is a spatially concentrated emission source imaged in the millimeter-wavelength disk gap of the Herbig Ae/Be star AB Aur. Its near-infrared spectrum and absence of strong polarized light have been interpreted as evid
Externí odkaz:
https://doaj.org/article/2961a4de002b4b63a6a40fd2441d607b
Autor:
Gabriele Cugno, Yifan Zhou, Thanawuth Thanathibodee, Per Calissendorff, Michael R. Meyer, Suzan Edwards, Jaehan Bae, Myriam Benisty, Edwin Bergin, Matthew De Furio, Stefano Facchini, Jared R. Males, Laird M. Close, Richard D. Teague, Olivier Guyon, Sebastiaan Y. Haffert, Alexander D. Hedglen, Maggie Kautz, Andrés Izquierdo, Joseph D. Long, Jennifer Lumbres, Avalon L. McLeod, Logan A. Pearce, Lauren Schatz, Kyle Van Gorkom
Publikováno v:
The Astronomical Journal, Vol 166, Iss 4, p 162 (2023)
The detection of emission lines associated with accretion processes is a direct method for studying how and where gas giant planets form, how young planets interact with their natal protoplanetary disk, and how volatile delivery to their atmosphere t
Externí odkaz:
https://doaj.org/article/c32e36b917c7479db99636ad9d8b54d2
Autor:
Ya-Lin Wu, Yu-Chi Cheng, Li-Ching Huang, Brendan P. Bowler, Laird M. Close, Wei-Ling Tseng, Ning Chen, Da-Wei Chen
Publikováno v:
The Astronomical Journal, Vol 166, Iss 4, p 143 (2023)
Monitoring mass accretion onto substellar objects provides insights into the geometry of the accretion flows. We use the Lulin One-meter Telescope to monitor H α emission from FU Tau B, a ∼19 M _Jup brown-dwarf companion at 5.″7 (719 au) from th
Externí odkaz:
https://doaj.org/article/a6a19480fefd4658a03faae4f208ce80
Autor:
William O. Balmer, Katherine B. Follette, Laird M. Close, Jared R. Males, Robert J. De Rosa, Jéa I. Adams Redai, Alex Watson, Alycia J. Weinberger, Katie M. Morzinski, Julio Morales, Kimberly Ward-Duong, Laurent Pueyo
Publikováno v:
The Astronomical Journal, Vol 166, Iss 3, p 135 (2023)
Externí odkaz:
https://doaj.org/article/b1892cbf178d471384b5de67671a50be
Autor:
Katherine B. Follette, Laird M. Close, Jared R. Males, Kimberly Ward-Duong, William O. Balmer, Jéa Adams Redai, Julio Morales, Catherine Sarosi, Beck Dacus, Robert J. De Rosa, Fernando Garcia Toro, Clare Leonard, Bruce Macintosh, Katie M. Morzinski, Wyatt Mullen, Joseph Palmo, Raymond Nzaba Saitoti, Elijah Spiro, Helena Treiber, Kevin Wagner, Jason Wang, David Wang, Alex Watson, Alycia J. Weinberger
Publikováno v:
The Astronomical Journal, Vol 165, Iss 6, p 225 (2023)
Accreting protoplanets are windows into planet formation processes, and high-contrast differential imaging is an effective way to identify them. We report results from the Giant Accreting Protoplanet Survey (GAPlanetS), which collected H α different
Externí odkaz:
https://doaj.org/article/e3f07ff457dc49689067ae87a9a38d64
Autor:
Joseph D. Long, Jared R. Males, Sebastiaan Y. Haffert, Logan Pearce, Mark S. Marley, Katie M. Morzinski, Laird M. Close, Gilles P. P. L. Otten, Frans Snik, Matthew A. Kenworthy, Christoph U. Keller, Philip Hinz, John D. Monnier, Alycia Weinberger, Volker Tolls
Publikováno v:
The Astronomical Journal, Vol 165, Iss 5, p 216 (2023)
We use observations with the infrared-optimized Magellan Adaptive Optics (MagAO) system and Clio camera in 3.9 μ m light to place stringent mass constraints on possible undetected companions to Sirius A. We suppress the light from Sirius A by imagin
Externí odkaz:
https://doaj.org/article/6bdf35d8eaa8440c80ff8b7fe817c366
Autor:
Jéa I. Adams Redai, Katherine B. Follette, Jason Wang, Clare Leonard, William Balmer, Laird M. Close, Beck Dacus, Jared R. Males, Katie M. Morzinski, Joseph Palmo, Laurent Pueyo, Elijah Spiro, Helena Treiber, Kimberly Ward-Duong, Alex Watson
Publikováno v:
The Astronomical Journal, Vol 165, Iss 2, p 57 (2023)
High-contrast imaging has afforded astronomers the opportunity to study light directly emitted by adolescent (tens of megayears) and “proto” (
Externí odkaz:
https://doaj.org/article/57f1791ad5fb47e9b577afe30fffd253
Autor:
William O. Balmer, Katherine B. Follette, Laird M. Close, Jared R. Males, Robert J. De Rosa, Jéa I. Adams Redai, Alex Watson, Alycia J. Weinberger, Katie M. Morzinski, Julio Morales, Kimberly Ward-Duong, Laurent Pueyo
Publikováno v:
The Astronomical Journal, Vol 164, Iss 1, p 29 (2022)
Companions embedded in the cavities of transitional circumstellar disks have been observed to exhibit excess luminosity at H α , an indication that they are actively accreting. We report 5 yr (2013–2018) of monitoring of the position and H α exce
Externí odkaz:
https://doaj.org/article/b44d18c24508436592d2b8c405aef93a