Zobrazeno 1 - 10
of 129
pro vyhledávání: '"Timothy. R. White"'
Autor:
Vanshree Bhalotia, Daniel Huber, Jennifer L. van Saders, Travis S. Metcalfe, Keivan G. Stassun, Timothy R. White, Víctor Aguirre Børsen-Koch, Warrick H. Ball, Sarbani Basu, Aldo M. Serenelli, Erica Sawczynec, Joyce A. Guzik, Andrew W. Howard, Howard Isaacson
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 2, p 166 (2024)
Stellar spin down is a critical yet poorly understood component of stellar evolution. In particular, results from the Kepler Mission imply that mature age, solar-type stars have inefficient magnetic braking, resulting in a stalled spin-down rate. How
Externí odkaz:
https://doaj.org/article/06a4a282b81a4e0695c3a216ca0e03e8
Autor:
Timothy R. Bedding, Simon J. Murphy, Courtney Crawford, Daniel R. Hey, Daniel Huber, Hans Kjeldsen, Yaguang Li, Andrew W. Mann, Guillermo Torres, Timothy R. White, George Zhou
Publikováno v:
The Astrophysical Journal Letters, Vol 946, Iss 1, p L10 (2023)
We studied 89 A- and F-type members of the Pleiades open cluster, including five escaped members. We measured projected rotational velocities ( $v\sin i$ ) for 49 stars and confirmed that stellar rotation causes a broadening of the main sequence in t
Externí odkaz:
https://doaj.org/article/97fdaf01fb2641378068af1bb2522159
Autor:
Timothy R. Bedding, Simon J. Murphy, Courtney Crawford, Daniel R. Hey, Daniel Huber, Hans Kjeldsen, Yaguang Li, Andrew W. Mann, Guillermo Torres, Timothy R. White, George Zhou
Publikováno v:
Bedding, T R, Murphy, S J, Crawford, C, Hey, D R, Huber, D, Kjeldsen, H, Li, Y, Mann, A W, Torres, G, White, T R & Zhou, G 2023, ' TESS Observations of the Pleiades Cluster : A Nursery for δ Scuti Stars ', Astrophysical Journal Letters, vol. 946, no. 1, L10 . https://doi.org/10.3847/2041-8213/acc17a
We studied 89 A- and F-type members of the Pleiades open cluster, including five escaped members. We measured projected rotational velocities (v sin i) for 49 stars and confirmed that stellar rotation causes a broadening of the main sequence in the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce14f998765406e52889dd9243717017
https://pure.au.dk/portal/da/publications/tess-observations-of-the-pleiades-cluster(629fbe1c-9871-4b01-8802-d6b290e502f4).html
https://pure.au.dk/portal/da/publications/tess-observations-of-the-pleiades-cluster(629fbe1c-9871-4b01-8802-d6b290e502f4).html
Autor:
Emily Hatt, Martin B. Nielsen, William J. Chaplin, Warrick H. Ball, Guy R. Davies, Timothy R. Bedding, Derek L. Buzasi, Ashley Chontos, Daniel Huber, Cenk Kayhan, Yaguang Li, Timothy R. White, Chen Cheng, Travis S. Metcalfe, Dennis Stello
Publikováno v:
Hatt, E, Nielsen, M B, Chaplin, W J, Ball, W H, Davies, G R, Bedding, T R, Buzasi, D L, Chontos, A, Huber, D, Kayhan, C, Li, Y, White, T R, Cheng, C, Metcalfe, T S & Stello, D 2023, ' Catalogue of solar-like oscillators observed by TESS in 120-s and 20-s cadence ', Astronomy and Astrophysics, vol. 669, A67 . https://doi.org/10.1051/0004-6361/202244579
Context. The Transiting Exoplanet Survey Satellite (TESS) mission has provided photometric light curves for stars across nearly the entire sky. This allows for the application of asteroseismology to a pool of potential solar-like oscillators that is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eaf5df51407309caff915f54473c1500
https://pure.au.dk/portal/da/publications/catalogue-of-solarlike-oscillators-observed-by-tess-in-120s-and-20s-cadence(bda9010f-13b0-48dc-8b3c-7d658637e913).html
https://pure.au.dk/portal/da/publications/catalogue-of-solarlike-oscillators-observed-by-tess-in-120s-and-20s-cadence(bda9010f-13b0-48dc-8b3c-7d658637e913).html
Autor:
Yaguang Li, Timothy R Bedding, Dennis Stello, Daniel Huber, Marc Hon, Meridith Joyce, Tanda Li, Jean Perkins, Timothy R White, Joel C Zinn, Andrew W Howard, Howard Isaacson, Daniel R Hey, Hans Kjeldsen
Publikováno v:
Li, Y, Bedding, T R, Stello, D, Huber, D, Hon, M, Joyce, M, Li, T, Perkins, J, White, T R, Zinn, J C, Howard, A W, Isaacson, H, Hey, D R & Kjeldsen, H 2023, ' A prescription for the asteroseismic surface correction ', Monthly Notices of the Royal Astronomical Society, vol. 523, no. 1, pp. 916-927 . https://doi.org/10.1093/mnras/stad1445
In asteroseismology, the surface effect refers to a disparity between the observed and the modelled frequencies in stars with solar-like oscillations. It originates from improper modelling of the surface layers. Correcting the surface effect usually
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc3c235f856de8bd19b36f4c3c377490
http://arxiv.org/abs/2208.01176
http://arxiv.org/abs/2208.01176
Autor:
Simon J Murphy, Timothy R Bedding, Timothy R White, Yaguang Li(李亚光), Daniel Hey, Daniel Reese, Meridith Joyce
Publikováno v:
Murphy, S J, Bedding, T R, White, T R, Li, Y, Hey, D, Reese, D & Joyce, M 2022, ' Five young δscuti stars in the Pleiades seen with Kepler/K2 ', Monthly Notices of the Royal Astronomical Society, vol. 511, no. 4, pp. 5718-5729 . https://doi.org/10.1093/mnras/stac240
We perform mode identification for five $\delta$ Scuti stars in the Pleiades star cluster, using custom light curves from K2 photometry. By creating \'echelle diagrams, we identify radial and dipole mode ridges, comprising a total of 28 radial and 16
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b62dd7f1011125f5438e55a01cb36120
https://pure.au.dk/portal/da/publications/five-young-scuti-stars-in-the-pleiades-seen-with-keplerk2(2f6e1095-c81a-4eff-ad82-44636ac2cd12).html
https://pure.au.dk/portal/da/publications/five-young-scuti-stars-in-the-pleiades-seen-with-keplerk2(2f6e1095-c81a-4eff-ad82-44636ac2cd12).html
Autor:
Daniel Huber, Timothy R. White, Travis S. Metcalfe, Ashley Chontos, Michael M. Fausnaugh, Cynthia S. K. Ho, Vincent Van Eylen, Warrick H. Ball, Sarbani Basu, Timothy R. Bedding, Othman Benomar, Diego Bossini, Sylvain Breton, Derek L. Buzasi, Tiago L. Campante, William J. Chaplin, Jørgen Christensen-Dalsgaard, Margarida S. Cunha, Morgan Deal, Rafael A. García, Antonio García Muñoz, Charlotte Gehan, Lucía González-Cuesta, Chen Jiang, Cenk Kayhan, Hans Kjeldsen, Mia S. Lundkvist, Stéphane Mathis, Savita Mathur, Mário J. P. F. G. Monteiro, Benard Nsamba, Jia Mian Joel Ong, Erika Pakštienė, Aldo M. Serenelli, Victor Silva Aguirre, Keivan G. Stassun, Dennis Stello, Sissel Norgaard Stilling, Mark Lykke Winther, Tao Wu, Thomas Barclay, Tansu Daylan, Maximilian N. Günther, J. J. Hermes, Jon M. Jenkins, David W. Latham, Alan M. Levine, George R. Ricker, Sara Seager, Avi Shporer, Joseph D. Twicken, Roland K. Vanderspek, Joshua N. Winn
Publikováno v:
Huber, D, White, T R, Metcalfe, T S, Chontos, A, Fausnaugh, M M, Ho, C S K, Van Eylen, V, Ball, W H, Basu, S, Bedding, T R, Benomar, O, Bossini, D, Breton, S, Buzasi, D L, Campante, T L, Chaplin, W J, Christensen-Dalsgaard, J, Cunha, M S, Deal, M, Garciá, R A, Garciá Munoz, A, Gehan, C, González-Cuesta, L, Jiang, C, Kayhan, C, Kjeldsen, H, Lundkvist, M S, Mathis, S, Mathur, S, Monteiro, M J P F G, Nsamba, B, Ong, J M J, Pakštiene, E, Serenelli, A M, Silva Aguirre, V, Stassun, K G, Stello, D, Norgaard Stilling, S, Lykke Winther, M, Wu, T, Barclay, T, Daylan, T, Günther, M N, Hermes, J J, Jenkins, J M, Latham, D W, Levine, A M, Ricker, G R, Seager, S, Shporer, A, Twicken, J D, Vanderspek, R K & Winn, J N 2022, ' A 20 Second Cadence View of Solar-type Stars and Their Planets with TESS : Asteroseismology of Solar Analogs and a Recharacterization of p Men c ', Astronomical Journal, vol. 163, no. 2, 79 . https://doi.org/10.3847/1538-3881/ac3000
Digital.CSIC. Repositorio Institucional del CSIC
instname
Astronomical journal, Bristol : IOP publishing Ltd, 2022, vol. 163, iss. 2, art. no. 79, p. [1-17]
The Astronomical Journal
Digital.CSIC. Repositorio Institucional del CSIC
instname
Astronomical journal, Bristol : IOP publishing Ltd, 2022, vol. 163, iss. 2, art. no. 79, p. [1-17]
The Astronomical Journal
We present an analysis of the first 20 second cadence light curves obtained by the TESS space telescope during its extended mission. We find improved precision of 20 second data compared to 2 minute data for bright stars when binned to the same caden
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6529dbc7a86d6cf4620e431b2c68fd0c
http://hdl.handle.net/10261/279517
http://hdl.handle.net/10261/279517
Autor:
J. L. Rørsted, Guy R. Davies, J. R. Larsen, M. L. Winther, Aldo Serenelli, Kuldeep Verma, Timothy R. White, Mikkel N. Lund, Christian L. Sahlholdt, Anders Bo Justesen, Luca Casagrande, Amalie Stokholm, K. B. Nielsen, Santi Cassisi, Jason W. Ferguson, A. Weiss, Joergen Christensen-Dalsgaard, Emil Knudstrup, V. Aguirre Børsen-Koch
Publikováno v:
Aguirre Børsen-Koch, V, Rørsted, J L, Justesen, A B, Stokholm, A, Verma, K, Winther, M L, Knudstrup, E, Nielsen, K B, Sahlholdt, C, Larsen, J R, Cassisi, S, Serenelli, A M, Casagrande, L, Christensen-Dalsgaard, J, Davies, G R, Ferguson, J W, Lund, M N, Weiss, A & White, T R 2022, ' The BAyesian STellar Algorithm (BASTA) : a fitting tool for stellar studies, asteroseismology, exoplanets, and Galactic archaeology ', Royal Astronomical Society. Monthly Notices, vol. 509, no. 3, pp. 4344–4364 . https://doi.org/10.1093/mnras/stab2911
We introduce the public version of the BAyesian STellar Algorithm (BASTA), an open-source code written in PYTHON to determine stellar properties based on a set of astrophysical observables. BASTA has been specifically designed to robustly combine lar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d0968355b23ccf3e0f419bb4cc9fc5a
http://hdl.handle.net/10261/295936
http://hdl.handle.net/10261/295936
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 493:2377-2394
In the current era of Gaia and large, high signal to noise stellar spectroscopic surveys, there is an unmet need for a reliable library of fundamentally calibrated stellar effective temperatures based on accurate stellar diameters. Here we present a
Autor:
Enrico Corsaro, William J. Chaplin, James S. Kuszlewicz, Zhexing Li, Benjamin J. Fulton, S. N. Breton, Rafael A. García, Derek Buzasi, Tanda Li, Dennis Stello, J. M. Joel Ong, Timothy D. Brandt, Paul A. Dalba, Marc Hon, Savita Mathur, Keivan G. Stassun, Aldo Serenelli, Timothy R. White, Timothy R. Bedding, Margarida S. Cunha, Chen Jiang, Benjamin J. S. Pope, Daniel Huber, Cenk Kayhan, Michelle L. Hill, Stephen R. Kane, Tiago L. Campante, Diego Bossini
Publikováno v:
Hill, M L, Kane, S R, Campante, T L, Li, Z, Dalba, P A, Brandt, T D, White, T R, Pope, B J S, Stassun, K G, Fulton, B J, Corsaro, E, Li, T, Ong, J M J, Bedding, T R, Bossini, D, Buzasi, D L, Chaplin, W J, Cunha, M S, García, R A, Breton, S N, Hon, M, Huber, D, Jiang, C, Kayhan, C, Kuszlewicz, J S, Mathur, S, Serenelli, A & Stello, D 2021, ' Asteroseismology of iota Draconis and Discovery of an Additional Long-period Companion ', Astronomical Journal, vol. 162, no. 5, 211 . https://doi.org/10.3847/1538-3881/ac1b31
The Astronomical Journal
Digital.CSIC. Repositorio Institucional del CSIC
instname
The Astronomical Journal
Digital.CSIC. Repositorio Institucional del CSIC
instname
Hill, Michelle L., et al.
Giant stars as known exoplanet hosts are relatively rare due to the potential challenges in acquiring precision radial velocities and the small predicted transit depths. However, these giant host stars are also some of
Giant stars as known exoplanet hosts are relatively rare due to the potential challenges in acquiring precision radial velocities and the small predicted transit depths. However, these giant host stars are also some of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcebdd18163113aea676a5a0dbc175c5
https://avesis.erciyes.edu.tr/publication/details/7e2fd1ff-4746-4eb6-9028-ba33af12ee78/oai
https://avesis.erciyes.edu.tr/publication/details/7e2fd1ff-4746-4eb6-9028-ba33af12ee78/oai