Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Maïssa Salama"'
Autor:
Kyle Franson, William O. Balmer, Brendan P. Bowler, Laurent Pueyo, Yifan Zhou, Emily Rickman, Zhoujian Zhang, Sagnick Mukherjee, Tim D. Pearce, Daniella C. Bardalez Gagliuffi, Lauren I. Biddle, Timothy D. Brandt, Rachel Bowens-Rubin, Justin R. Crepp, James W. Davidson Jr., Jacqueline Faherty, Christian Ginski, Elliott P. Horch, Marvin Morgan, Caroline V. Morley, Marshall D. Perrin, Aniket Sanghi, Maïssa Salama, Christopher A. Theissen, Quang H. Tran, Trevor N. Wolf
Publikováno v:
The Astrophysical Journal Letters, Vol 974, Iss 1, p L11 (2024)
With a dynamical mass of 3 M _Jup , the recently discovered giant planet AF Lep b is the lowest-mass imaged planet with a direct mass measurement. Its youth and spectral type near the L/T transition make it a promising target to study the impact of c
Externí odkaz:
https://doaj.org/article/122b8bd6b18c434e93cbf8296d60a7ca
Autor:
Maïssa Salama, Charlotte Guthery, Vincent Chambouleyron, Rebecca Jensen-Clem, J. Kent Wallace, Jacques-Robert Delorme, Mitchell Troy, Tobias Wenger, Daniel Echeverri, Luke Finnerty, Nemanja Jovanovic, Joshua Liberman, Ronald A. López, Dimitri Mawet, Evan C. Morris, Maaike van Kooten, Jason J. Wang, Peter Wizinowich, Yinzi Xin, Jerry Xuan
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 2, p 171 (2024)
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 cophasing errors are a primary contributor to contrast limits on Keck and will be nece
Externí odkaz:
https://doaj.org/article/7a5a86ccabae482ca7d94494762d138d
Direct-imaging Discovery of a Substellar Companion Orbiting the Accelerating Variable Star HIP 39017
Autor:
Taylor L. Tobin, Thayne Currie, Yiting Li, Jeffrey Chilcote, Timothy D. Brandt, Brianna Lacy, Masayuki Kuzuhara, Maria Vincent, Mona El Morsy, Vincent Deo, Jonathan P. Williams, Olivier Guyon, Julien Lozi, Sebastien Vievard, Nour Skaf, Kyohoon Ahn, Tyler Groff, N. Jeremy Kasdin, Taichi Uyama, Motohide Tamura, Aidan Gibbs, Briley L. Lewis, Rachel Bowens-Rubin, Maïssa Salama, Qier An, Minghan Chen
Publikováno v:
The Astronomical Journal, Vol 167, Iss 5, p 205 (2024)
We present the direct-imaging discovery of a substellar companion (a massive planet or low-mass brown dwarf) to the young, γ Doradus ( γ Dor)-type variable star HIP 39017 (HD 65526). The companion’s SCExAO/CHARIS JHK (1.1–2.4 μ m) spectrum and
Externí odkaz:
https://doaj.org/article/31d7a3c359a54d8bbc679c9e0156b625
Autor:
Rachel Bowens-Rubin, Joseph M. Akana Murphy, Philip M. Hinz, Mary Anne Limbach, Andreas Seifahrt, Rocio Kiman, Maïssa Salama, Sagnick Mukherjee, Madison Brady, Aarynn L. Carter, Rebecca Jensen-Clem, Maaike A. M. van Kooten, Howard Isaacson, Molly Kosiarek, Jacob L. Bean, David Kasper, Rafael Luque, Gudmundur Stefánsson, Julian Stürmer
Publikováno v:
The Astronomical Journal, Vol 166, Iss 6, p 260 (2023)
Wolf 359 (CN Leo, GJ 406, Gaia DR3 3864972938605115520) is a low-mass star in the fifth-closest neighboring system (2.41 pc). Because of its relative youth and proximity, Wolf 359 offers a unique opportunity to study substellar companions around M st
Externí odkaz:
https://doaj.org/article/84ac35f4591c4e318d9a13f685e5f09a
Autor:
Maïssa Salama, Carl Ziegler, Christoph Baranec, Michael C. Liu, Nicholas M. Law, Reed Riddle, Todd J. Henry, Jennifer G. Winters, Wei-Chun Jao, James Ou, Arcelia Hermosillo Ruiz
In order to assess the multiplicity statistics of stars across spectral types and populations in a volume-limited sample, we censused nearby stars for companions with Robo-AO. We report on observations of 1157 stars of all spectral types within 25 pc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e64786215aa4b556c585c55d11a49ea3
Autor:
M. L. Winther, Zeynep Çelik Orhan, Jennifer L. van Saders, Richard H. D. Townsend, Daniel Huber, Maïssa Salama, Sibel Örtel, Victor Silva Aguirre, R. Paul Butler, Savita Mathur, Travis A. Berger, Keivan G. Stassun, Aldo Serenelli, Hans Kjeldsen, Ashley Chontos, Timothy R. Bedding, Jia Mian Joel Ong, Mia S. Lundkvist, Zachary R. Claytor, Steve B. Howell, Robert A. Wittenmyer, Warrick H. Ball, Martin Bo Nielsen, C. G. Tinney, Sarbani Basu, Travis S. Metcalfe, Mutlu Yildiz, Rafael A. García, Enrico Corsaro, William J. Chaplin
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
Chontos, A, Huber, D, Berger, T A, Kjeldsen, H, Serenelli, A M, Silva Aguirre, V, Ball, W H, Basu, S, Bedding, T R, Chaplin, W J, Claytor, Z R, Corsaro, E, Garcia, R A, Howell, S B, Lundkvist, M S, Mathur, S, Metcalfe, T S, Nielsen, M B, Mian Joel Ong, J, Celik Orhan, Z, Ortel, S, Salama, M, Stassun, K G, Townsend, R H D, Van Saders, J L, Winther, M, Yildiz, M, Butler, R P, Tinney, C G & Wittenmyer, R A 2021, ' TESS Asteroseismology of α Mensae : Benchmark Ages for a G7 Dwarf and Its M Dwarf Companion ', Astrophysical Journal, vol. 922, no. 2, 229 . https://doi.org/10.3847/1538-4357/ac1269
instname
Chontos, A, Huber, D, Berger, T A, Kjeldsen, H, Serenelli, A M, Silva Aguirre, V, Ball, W H, Basu, S, Bedding, T R, Chaplin, W J, Claytor, Z R, Corsaro, E, Garcia, R A, Howell, S B, Lundkvist, M S, Mathur, S, Metcalfe, T S, Nielsen, M B, Mian Joel Ong, J, Celik Orhan, Z, Ortel, S, Salama, M, Stassun, K G, Townsend, R H D, Van Saders, J L, Winther, M, Yildiz, M, Butler, R P, Tinney, C G & Wittenmyer, R A 2021, ' TESS Asteroseismology of α Mensae : Benchmark Ages for a G7 Dwarf and Its M Dwarf Companion ', Astrophysical Journal, vol. 922, no. 2, 229 . https://doi.org/10.3847/1538-4357/ac1269
Asteroseismology of bright stars has become increasingly important as a method to determine the fundamental properties (in particular ages) of stars. The Kepler Space Telescope initiated a revolution by detecting oscillations in more than 500 main-se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abcd89a11dcf25bc55af6ddc2c47c1b9
http://hdl.handle.net/10261/261934
http://hdl.handle.net/10261/261934
Autor:
Christoph Baranec, Maïssa Salama, Sean Goebel, Nicholas M. Law, Donald N. B. Hall, Brendan P. Bowler, Paul Barnes, Rebecca Jensen-Clem, Zhoujian Zhang, Shane Jacobson, Reed Riddle, Dmitry A. Duev, Charles Lockhart, James Ou, Mark Chun, Eric Warmbier, Michael C. Liu, Heather Situ, Morgan Bonnet
We present results from the Large Adaptive optics Survey for Substellar Objects (LASSO), where the goal is to directly image new substellar companions (11.8$), while only 23$^{+11}_{-6}$% of the remaining 22 stars with no detected companion have sign
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f81763c580005a3a510ac519ca1b4d13
Autor:
Zachory K. Berta-Thompson, Jennifer G. Winters, Claire Lamman, Dmitry A. Duev, Jessica Schonhut-Stasik, Carl Ziegler, Nicholas M. Law, Reed Riddle, Rebecca Jensen-Clem, Shrinivas R. Kulkarni, Jonathan Irwin, Christoph Baranec, Maïssa Salama
We analyze observations from Robo-AO's field M dwarf survey taken on the 2.1m Kitt Peak telescope and perform a multiplicity comparison with Gaia DR2. Through its laser-guided, automated system, the Robo-AO instrument has yielded the largest adaptive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d48ec7bcd152cd8766ae15c02876076
Autor:
Daniel Huber, Jessica Schonhut-Stasik, Claire Lamman, Maïssa Salama, Christoph Baranec, Dmitry A. Duev, Reed Riddle, Shrinivas R. Kulkarni, Rebecca Jensen-Clem, Nicholas M. Law
The Kepler space telescope observed over 15,000 stars for asteroseismic studies. Of these, 75% of dwarfs (and 8% of giants) were found to show anomalous behavior: such as suppressed oscillations (low amplitude) or no oscillations at all. The lack of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79d50d071d5f3c6e599b3061a8a95101
Autor:
Ward S. Howard, Timothy D. Morton, Shrinivas R. Kulkarni, Carl Ziegler, Dmitry A. Duev, Nicholas M. Law, Reed Riddle, Rebecca Jensen-Clem, Christoph Baranec, Maïssa Salama
The Kepler light curves used to detect thousands of planetary candidates are susceptible to dilution due to blending with previously unknown nearby stars. With the automated laser adaptive optics instrument, Robo-AO, we have observed 620 nearby stars
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3aad4f55f429b3bb4fb3ea04c6b486bc
https://resolver.caltech.edu/CaltechAUTHORS:20180809-105907106
https://resolver.caltech.edu/CaltechAUTHORS:20180809-105907106