190 citations · 1.3k across the 21 of their papers we have counts for
13 papers · 1 filter
On the impact of the structural surface effect on global stellar properties and asteroseismic analyses
Andreas Christ Sølvsten Jørgensen, Josefina Montalbán, George C. Angelou +6
In a series of papers, we have recently demonstrated that it is possible to construct stellar structure models that robustly mimic the stratification of multi-dimensional radiative…
Investigating surface correction relations for RGB stars
Andreas Christ Sølvsten Jørgensen, Josefina Montalbán, Andrea Miglio +7
State-of-the-art stellar structure and evolution codes fail to adequately describe turbulent convection. For stars with convective envelopes, such as red giants, this leads to an i…
Calibration of the mixing-length parameter for the MLT and FST models by matching with COBOLD models
T. Sonoi, H. -G. Ludwig, M. -A. Dupret +5
The CoRoT and Kepler missions provided a wealth of high-quality data for solar-like oscillations. To make the best of such data for seismic inferences, we need theoretical models w…
Modelling Long-Period Variables - I. A new grid of O-rich and C-rich pulsation models
Michele Trabucchi, Peter R. Wood, Josefina Montalbán +3
We present a new grid of non-adiabatic, linear pulsation models of Long-Period Variables (LPVs), including periods and growth rates for radial modes from the fundamental to the fou…
The Red-Giant Branch Bump Revisited: Constraints on Envelope Overshooting in a Wide Range of Masses and Metallicities
Saniya Khan, Oliver J. Hall, Andrea Miglio +4
The red-giant branch bump provides valuable information for the investigation of the internal structure of low-mass stars. Because current models are unable to accurately predict t…
A new interpretation of the period-luminosity sequences of long-period variables
Michele Trabucchi, Peter R. Wood, Josefina Montalbán +3
Period-luminosity (PL) sequences of long period variables (LPVs) are commonly interpreted as different pulsation modes, but there is disagreement on the modal assignment. Here, we…
Determining stellar parameters of asteroseismic targets: going beyond the use of scaling relations
Thaíse S. Rodrigues, Diego Bossini, Andrea Miglio +6
Asteroseismic parameters allow us to measure the basic stellar properties of field giants observed far across the Galaxy. Most of such determinations are, up to now, based on simpl…
Constraining the efficiency of angular momentum transport with asteroseismology of red giants: the effect of stellar mass
P. Eggenberger, N. Lagarde, A. Miglio +12
Context: Constraints on the internal rotation of red giants are now available thanks to asteroseismic observations. Preliminary comparisons with rotating stellar models indicate th…
The CoRoT-GES Collaboration. Improving Red Giants spectroscopic surface gravity and abundances with asteroseismology
M. Valentini, C. Chiappini, A. Miglio +4
Nowadays large spectroscopic surveys, like the Gaia-ESO Survey (GES), provide unique stellar databases for better investigating the formation and evolution of our Galaxy. Great att…
Uncertainties on near-core mixing in red-clump stars: effects on the period spacing and on the luminosity of the AGB bump
Diego Bossini, Andrea Miglio, Maurizio Salaris +7
Low-mass stars in the He-core-burning phase (HeCB) play a major role in stellar, galactic, and extragalactic astrophysics. The ability to predict accurately the properties of these…
The AGB bump: a calibrator for the core mixing
Diego Bossini, Andrea Miglio, Maurizio Salaris +5
The efficiency of convection in stars affects many aspects of their evolution and remains one of the key-open questions in stellar modelling. In particular, the size of the mixed c…
Bayesian distances and extinctions for giants observed by Kepler and APOGEE
Thaíse S. Rodrigues, Léo Girardi, Andrea Miglio +30
We present a first determination of distances and extinctions for individual stars in the first release of the APOKASC catalogue, built from the joint efforts of the Apache Point O…
Asteroseismology of red giant stars: the potential of dipole modes
Josefina Montalbán, Arlette Noels
Since the detection of non-radial solar-like oscillation modes in red giants with the CoRoT satellite, the interest in the asteroseismic properties of red giants and the link with…