286 citations · 3.2k across the 54 of their papers we have counts for
49 papers · 1 filter
The Future of Solar modelling: requirements for a new generation of solar models
Gael Buldgen, Gloria. Canocchi, Arthur. Le Saux +22
Helioseismology and solar modelling have enjoyed a golden era thanks to decades-long surveys from ground-based networks such as for example GONG, BiSON, IRIS and the SOHO and SDO s…
TESS asteroseismology of Hydri: a subgiant with a born-again dynamo
Travis S. Metcalfe, Jennifer L. van Saders, Daniel Huber +12
The solar-type subgiant Hyi has long been studied as an old analog of the Sun. Although the rotation period has never been measured directly, it was estimated to be near 27 day…
Tess asteroseismology of the known planet host star Fornacis
M. B. Nielsen, W. H. Ball, M. R. Standing +22
The Transiting Exoplanet Survey Satellite (TESS) is observing bright known planet-host stars across almost the entire sky. These stars have been subject to extensive ground-based o…
Masses and ages for metal-poor stars: a pilot program combining asteroseismology and high-resolution spectroscopic follow-up of RAVE halo stars
M. Valentini, C. Chiappini, D. Bossini +10
Very metal-poor halo stars are the best candidates for being among the oldest objects in our Galaxy. Samples of halo stars with age determination and detailed chemical composition…
Un-interrupted Sun-as-a-star Helioseismic Observations over Multiple Solar Cycles
Kiran Jain, Sushanta Tripathy, Frank Hill +3
We analyze Sun-as-a-star observations spanning over solar cycles 22 -- 24 from the ground-based network BiSON and solar cycles 23 -- 24 collected by the space-based VIRGO and GOLF…
PLATO as it is: a legacy mission for Galactic archaeology
A. Miglio, C. Chiappini, B. Mosser +102
Deciphering the assembly history of the Milky Way is a formidable task, which becomes possible only if one can produce high-resolution chrono-chemo-kinematical maps of the Galaxy.…
A Distant Mirror: Solar Oscillations Observed on Neptune by the Kepler K2 Mission
P. Gaulme, J. F. Rowe, T. R. Bedding +24
Starting in December 2014, Kepler K2 observed Neptune continuously for 49 days at a 1-minute cadence. The goals consisted of studying its atmospheric dynamics (Simon et al. 2016),…
Effect of Kepler calibration on global seismic and background parameters
D. Salabert, R. A. Garcia, S. Mathur +1
Calibration issues associated to scrambled collateral smear affecting the Kepler short-cadence data were discovered in the Data Release 24 and were found to be present in all the p…
Kepler Observations of the Asteroseismic Binary HD 176465
T. R. White, O. Benomar, V. Silva Aguirre +31
Binary star systems are important for understanding stellar structure and evolution, and are especially useful when oscillations can be detected and analysed with asteroseismology.…
Detection of Solar-Like Oscillations, Observational Constraints, and Stellar Models for Cyg, the Brightest Star Observed by the {\it Kepler} Mission
J. A. Guzik, G. Houdek, W. J. Chaplin +52
Cygni is an F3 spectral-type main-sequence star with visual magnitude V=4.48. This star was the brightest star observed by the original Kepler spacecraft mission. Short-cadence…
Magnetic activity cycles in solar-like stars: The cross-correlation technique of p-mode frequency shifts
C. Regulo, R. A. Garcia, J. Ballot
Aims. We aim studying the use of cross-correlation techniques to infer the frequency shifts induced by changing magnetic fields in the p-mode frequencies and provide precise estima…
Magnetic variability in the young solar analog KIC 10644253: Observations from the Kepler satellite and the HERMES spectrograph
D. Salabert, C. Regulo, R. A. Garcia +12
The continuous photometric observations collected by the Kepler satellite over 4 years provide a whelm of data with an unequalled quantity and quality for the study of stellar evol…
Internal rotation of the red-giant star KIC 4448777 by means of asteroseismic inversion
M . P. Di Mauro, R. Ventura, D. Cardini +13
In this paper we study the dynamics of the stellar interior of the early red-giant star KIC 4448777 by asteroseismic inversion of 14 splittings of the dipole mixed modes obtained f…
The connection between stellar granulation and oscillation as seen by the Kepler mission
T. Kallinger, J. De Ridder, S. Hekker +6
The long and almost continuous observations by Kepler show clear evidence of a granulation background signal in a large sample of stars, which is interpreted as the surface manifes…
Inferring mode inertias in evolved solar-like stars
O. Benomar, K. Belkacem, T. R. Bedding +7
Asteroseismology of evolved solar-like stars is experiencing a growing interest due to the wealth of observational data from space-borne instruments such as the \emph{CoRoT} and \e…
Stellar granulation as seen in disk-integrated intensity. II. Theoretical scaling relations compared with observations
R. Samadi, K. Belkacem, H. -G. Ludwig +9
A large set of stars observed by CoRoT and Kepler shows clear evidence for the presence of a stellar background, which is interpreted to arise from surface convection, i.e., granul…
Properties of oscillation modes in subgiant stars observed by Kepler
O. Benomar, T. R. Bedding, B. Mosser +7
Mixed modes seen in evolved stars carry information on their deeper layers that can place stringent constraints on their physics and on their global properties (mass, age, etc...).…
Observations of intensity fluctuations attributed to granulation and faculae on Sun-like stars from the Kepler mission
C. Karoff, T. L. Campante, J. Ballot +6
Sun-like stars show intensity fluctuations on a number of time scales due to various physical phenomena on their surfaces. These phenomena can convincingly be studied in the freque…
The Sun-as-a-star observations: GOLF & VIRGO on SoHO, and BiSON network
R. A. Garcia, G. R. Davies, A. Jimenez +7
Sun-as-a-star observations are very important for the study of the conditions within the Sun and in particular for the deep interior where higher degree modes do not penetrate. The…
Towards solar activity maximum 24 as seen by GOLF and VIRGO/SPM instruments
R. A. Garcia, D. Salabert, S. Mathur +5
All p-mode parameters vary with time as a response to the changes induced by the cyclic behavior of solar magnetic activity. After the unusual long solar-activity minimum between c…
Internal rotation of red giants by asteroseismology
M. P. Di Mauro, D. Cardini, R. Ventura +12
We present an asteroseismic approach to study the dynamics of the stellar interior in red-giant stars by asteroseismic inversion of the splittings induced by the stellar rotation o…
Constraining magnetic-activity modulations in 3~solar-like stars observed by CoRoT and NARVAL
S. Mathur, R. A. Garcia, A. Morgenthaler +5
Stellar activity cycles are the manifestation of dynamo process running in the stellar interiors. They have been observed during years to decades thanks to the measurement of stell…
Constraining the core-rotation rate in red-giant stars from Kepler space photometry
P. G. Beck, J. De Ridder, C. Aerts +5
Rotation plays a key role in stellar structure and its evolution. Through transport processes which induce rotational mixing of chemical species and the redistribution of angular m…
Solar-like oscillations in red giants observed with \textit{Kepler}: influence of increased timespan on global oscillation parameters
S. Hekker, Y. Elsworth, B. Mosser +8
The length of the asteroseismic timeseries obtained from the Kepler satellite analysed here span 19 months. Kepler provides the longest continuous timeseries currently available, w…