Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Charlotte Gehan"'
Autor:
Chen Jiang, Tao Wu, Adina D. Feinstein, Keivan G. Stassun, Timothy R. Bedding, Dimitri Veras, Enrico Corsaro, Derek L. Buzasi, Dennis Stello, Yaguang Li, Savita Mathur, Rafael A. García, Sylvain N. Breton, Mia S. Lundkvist, Przemysław J. Mikołajczyk, Charlotte Gehan, Tiago L. Campante, Diego Bossini, Stephen R. Kane, Jia Mian Joel Ong, Mutlu Yıldız, Cenk Kayhan, Zeynep Çelik Orhan, Sibel Örtel, Xinyi Zhang, Margarida S. Cunha, Bruno Lustosa de Moura, Jie Yu, Daniel Huber, Jian-wen Ou, Robert A. Wittenmyer, Laurent Gizon, William J. Chaplin
Publikováno v:
The Astrophysical Journal, Vol 945, Iss 1, p 20 (2023)
The Transiting Exoplanet Survey Satellite (TESS) mission searches for new exoplanets. The observing strategy of TESS results in high-precision photometry of millions of stars across the sky, allowing for detailed asteroseismic studies of individual s
Externí odkaz:
https://doaj.org/article/44154bef65484b1d85f9d7ebc378acc0
Autor:
J. M. Joel Ong, Charlotte Gehan
Publikováno v:
The Astrophysical Journal, Vol 946, Iss 2, p 92 (2023)
In the mixed-mode asteroseismology of subgiants and red giants, the coupling between the p- and g- mode cavities must be understood well in order to derive localized estimates of interior rotation from measurements of mode multiplet rotational splitt
Externí odkaz:
https://doaj.org/article/24f242d869b543e387b1d35f945b1689
Spinning up the Surface: Evidence for Planetary Engulfment or Unexpected Angular Momentum Transport?
Autor:
Jamie Tayar, Facundo D. Moyano, Melinda Soares-Furtado, Ana Escorza, Meridith Joyce, Sarah L. Martell, Rafael A. García, Sylvain N. Breton, Stéphane Mathis, Savita Mathur, Vincent Delsanti, Sven Kiefer, Sabine Reffert, Dominic M. Bowman, Timothy Van Reeth, Shreeya Shetye, Charlotte Gehan, Samuel K. Grunblatt
Publikováno v:
The Astrophysical Journal, Vol 940, Iss 1, p 23 (2022)
In this paper, we report the potential detection of a nonmonotonic radial rotation profile in a low-mass lower-luminosity giant star. For most low- and intermediate-mass stars, the rotation on the main sequence seems to be close to rigid. As these st
Externí odkaz:
https://doaj.org/article/6001f52a1aa9479f86e2d63223f3da31
Publikováno v:
Astronomische Nachrichten.
We developed, tested and validated a new Fast, Robust and Automated (FRA) tool to detect solar-like oscillations. FRA is based on the detection and measurement of the frequency of maximum oscillation power $\nu_{max}$, without relying on the detectio
Autor:
Chen Jiang, Tao Wu, Adina D. Feinstein, Keivan G. Stassun, Timothy R. Bedding, Dimitri Veras, Enrico Corsaro, Derek L. Buzasi, Dennis Stello, Yaguang Li, Savita Mathur, Rafael A. García, Sylvain N. Breton, Mia S. Lundkvist, Przemysław J. Mikołajczyk, Charlotte Gehan, Tiago L. Campante, Diego Bossini, Stephen R. Kane, Jia Mian Joel Ong, Mutlu Yıldız, Cenk Kayhan, Zeynep Çelik Orhan, Sibel Örtel, Xinyi Zhang, Margarida S. Cunha, Bruno Lustosa de Moura, Jie Yu, Daniel Huber, Jian-wen Ou, Robert A. Wittenmyer, Laurent Gizon, William J. Chaplin
Publikováno v:
Jiang, C, Wu, T, Feinstein, A D, Stassun, K G, Bedding, T R, Veras, D, Corsaro, E, Buzasi, D L, Stello, D, Li, Y, Mathur, S, García, R A, Breton, S N, Lundkvist, M S, Mikołajczyk, P J, Gehan, C, Campante, T L, Bossini, D, Kane, S R, Joel Ong, J M, Yıldız, M, Kayhan, C, Çelik Orhan, Z, Örtel, S, Zhang, X, Cunha, M S, de Moura, B L, Yu, J, Huber, D, Ou, J W, Wittenmyer, R A, Gizon, L & Chaplin, W J 2023, ' TESS Asteroseismic Analysis of HD 76920 : The Giant Star Hosting an Extremely Eccentric Exoplanet ', Astrophysical Journal, vol. 945, no. 1, 20 . https://doi.org/10.3847/1538-4357/acb8ac
The Astrophysical Journal
The Astrophysical Journal
The Transiting Exoplanet Survey Satellite (TESS) mission searches for new exoplanets. The observing strategy of TESS results in high-precision photometry of millions of stars across the sky, allowing for detailed asteroseismic studies of individual s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0ccb0758223125d059ae14ccce95532
https://pure.au.dk/portal/da/publications/tess-asteroseismic-analysis-of-hd-76920(329f5842-1dc0-4b36-a821-d9294ab7b38a).html
https://pure.au.dk/portal/da/publications/tess-asteroseismic-analysis-of-hd-76920(329f5842-1dc0-4b36-a821-d9294ab7b38a).html
Autor:
Patrick Gaulme, Tamás Borkovits, Thierry Appourchaux, Krešimir Pavlovski, Federico Spada, Charlotte Gehan, Joel Ong, Andrea Miglio, Andrew Tkachenko, Benoît Mosser, Mathieu Vrard, Mansour Benbakoura, Stephen Drew Chojnowski, Jean Perkins, Anne Hedlund, Jason Jackiewicz
Publikováno v:
Astronomy and Astrophysics
KIC 7955301 is a hierarchical triple system with eclipse timing and depth variations discovered by the Kepler mission. It is composed of a non-eclipsing primary star at the bottom of the red giant branch on a 209-day orbit with a K/G-type main-sequen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::759e7e537153aee77c1ebaaa979f1e6e
http://arxiv.org/abs/2210.05312
http://arxiv.org/abs/2210.05312
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
Publikováno v:
Astronomy and Astrophysics
According to dynamo theory, stars with convective envelopes efficiently generate surface magnetic fields, which manifest as magnetic activity in the form of starspots, faculae, flares, when their rotation period is shorter than their convective turno
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 650, pp.A115. ⟨10.1051/0004-6361/202040240⟩
Astronomy and Astrophysics-A&A, 2021, 650, pp.A115. ⟨10.1051/0004-6361/202040240⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2021, 650, pp.A115. ⟨10.1051/0004-6361/202040240⟩
Astronomy and Astrophysics-A&A, 2021, 650, pp.A115. ⟨10.1051/0004-6361/202040240⟩
The space-borne missions CoRoT and Kepler opened up a new opportunity for better understanding stellar evolution by probing stellar interiors with unrivalled high-precision photometric data. Kepler has observed stellar oscillation for four years, whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58991f3443dd029993e1eac599fe1c32
https://hal.archives-ouvertes.fr/hal-03272251
https://hal.archives-ouvertes.fr/hal-03272251
Publikováno v:
EAS Publications Series. 82:225-232
Red giant stars present mixed modes, which behave as pressure modes in the convective envelope and as gravity modes in the radiative interior. This mixed character allows to probe the physical conditions in their core. With the advent of long-duratio