125 citations · 589 across the 19 of their papers we have counts for
21 papers
Signatures of rocky debris accretion in AF-Type planet hosts
J. Maldonado, I. Mendigutía, S. Barceló Forteza +3
The gas-giant planet-metallicity correlation plays a fundamental role in our understanding of planet formation. We determine in a homogeneous way the metallicity and individual abu…
Forward Modeling of the Sct Star V1790 Ori: , , Resolution and Non-adiabatic Effects
Xiaoya Sun, Antonio García Hernández, Zhaoyu Zuo +5
We investigate the role of large separation, rotational correction order, structural resolution, and non-adiabatic effects in modelling the rotating Scuti star V1790 Ori. From…
Intermediate-mass stars and the origin of the gas-giant planet-metallicity correlation
J. Maldonado, G. M. Mirouh, I. Mendigutía +3
The number of known planets around intermediate-mass stars (1.5 M < M < 3.5 M) is rather low. We aim to test whether the correlation between the metal…
The PL diagram for Sct stars: back in business as distance estimators
A. García Hernández, J. Pascual-Granado, M. Lares-Martiz +4
In this work, we focus on the period-luminosity relation (PLR) of Sct stars, in which mode excitation and selection mechanisms are still poorly constrained, and whose structure…
Dating young open clusters using delta Scuti stars. Results for Trumpler 10 and Praesepe
D. Pamos Ortega, G. M. Mirouh, A. García Hernández +2
Aims. The main goal of this work is to date young open clusters using Sct stars. Seismic indices such as the large separation and the frequency at maximum power can help to con…
Spectroscopic detection of Altair's non-radial pulsations
M. Rieutord, P. Petit, D. Reese +4
Context: Rapid rotation is a common feature of early-type stars but which remains a challenge for the models. The understanding of its effect on stellar evolution is however impera…
Forward modelling and the quest for mode identification in rapidly-rotating stars
Giovanni Marcello Mirouh
Asteroseismology has opened a window on the internal physics of thousands of stars, by relating oscillation spectra properties to the internal physics of stars. Mode identification…
Oscillations of 2D ESTER models. I. The adiabatic case
D. R. Reese, G. M. Mirouh, F. Espinosa Lara +2
Recent numerical and theoretical considerations have shown that low-degree acoustic modes in rapidly rotating stars follow an asymptotic formula and recent observations of pulsatio…
The first view of Scuti and Doradus stars with the TESS mission
V. Antoci, M. S. Cunha, D. M. Bowman +63
We present the first asteroseismic results for Scuti and Doradus stars observed in Sectors 1 and 2 of the TESS mission. We utilise the 2-min cadence TESS data for a sample…
Rotational modulation in TESS B stars
L. A. Balona, G. Handler, S. Chowdhury +6
Light curves and periodograms of 160 B stars observed by the TESS space mission and 29 main-sequence B stars from Kepler and K2 were used to classify the variability type. There ar…
Asteroseismology of massive stars with the TESS mission: the runaway Beta Cep pulsator PHL 346 = HN Aqr
Gerald Handler, Andrzej Pigulski, Jadwiga Daszyńska-Daszkiewicz +21
We report an analysis of the first known Beta Cep pulsator observed by the TESS mission, the runaway star PHL 346 = HN Aqr. The star, previously known as a singly-periodic pulsator…
Diverse Variability of O and B Stars Revealed from 2-minute Cadence Light Curves in Sectors 1 and 2 of the TESS Mission: Selection of an Asteroseismic Sample
May G. Pedersen, Sowgata Chowdhury, Cole Johnston +18
Uncertainties in stellar structure and evolution theory are largest for stars undergoing core convection on the main sequence. A powerful way to calibrate the free parameters used…
Mode Classification in Fast-Rotating Stars using a Convolutional Neural Network: Model-Based Regular Patterns in Scuti Stars
Giovanni M. Mirouh, George C. Angelou, Daniel R. Reese +1
Oscillation modes in fast-rotating stars can be split into several subclasses, each with their own properties. To date, seismology of these stars cannot rely on regular pattern ana…
Non-adiabatic oscillations of fast-rotating stars: the example of Rasalhague
Giovanni M. Mirouh, Daniel R. Reese, Michel Rieutord +1
Early-type stars generally tend to be fast rotators. In these stars, mode identification is very challenging as the effects of rotation are not well known. We consider here the exa…
Dynamics of the photosphere along the solar cycle from SDO/HMI
Th. Roudier, J. M. Malherbe, G. M. Mirouh
As the global magnetic field of the Sun has an activity cycle, one expects to observe some variation of the dynamical properties of the flows visible in the photosphere. We investi…
Gravito-inertial waves in a differentially rotating spherical shell
Giovanni M. Mirouh, Clément Baruteau, Michel Rieutord +1
The gravito-inertial waves propagating over a shellular baroclinic flow inside a rotating spherical shell are analysed using the Boussinesq approximation. The wave properties are e…
Gravito-inertial modes in a differentially rotating spherical shell
Giovanni M. Mirouh, Clément Baruteau, Michel Rieutord +1
While many intermediate- and high-mass main sequence stars are rapidly and differentially rotating, the effects of rotation on oscillation modes are poorly known. In this communica…
Discovery of starspots on Vega - First spectroscopic detection of surface structures on a normal A-type star
T. Böhm, M. Holschneider, F. Lignières +8
The theoretically studied impact of rapid rotation on stellar evolution needs to be confronted with the results of high resolution spectroscopy-velocimetry observations. A weak sur…
Gravito-inertial modes in a differentially rotating spherical shell
Giovanni M. Mirouh, Clément Baruteau, Michel Rieutord +1
Oscillations have been detected in a variety of stars, including intermediate- and high-mass main sequence stars. While many of these stars are rapidly and differentially rotating,…
Asteroseismology of fast-rotating stars: the example of alpha Ophiuchi
Giovanni M. Mirouh, Daniel R. Reese, Francisco Espinosa Lara +2
Many early-type stars have been measured with high angular velocities. In such stars, mode identification is difficult as the effects of fast and differential rotation are not well…
A new model for mixing by double-diffusive convection (semi-convection): I. The conditions for layer formation
Giovanni M. Mirouh, Pascale Garaud, Stephan Stellmach +2
The process referred to as "semi-convection" in astrophysics and "double-diffusive convection in the diffusive regime" in Earth and planetary sciences, occurs in stellar and planet…