10 citations · 20 across the 11 of their papers we have counts for
7 papers · 1 filter
An asteroseismic age estimate for the Pleiades using a neural-network emulator of rotating Scuti pulsation models
Anuj Gautam, Simon J. Murphy
Asteroseismology of Sct stars has strong potential for determining the ages of young stars through individual mode fitting. We present a neural-network emulator trained on appr…
Population synthesis of delta Scuti stars: the instability strip, period-luminosity relation, and large-separation distribution
Simon J. Murphy, Anuj Gautam
Interpreting the observed properties of intermediate-mass stars requires accounting for rotation, binarity, intrinsic population diversity, and measurement uncertainty. We combine…
Quantifying isochrone-based age uncertainties for rapidly rotating A-type stars
Simon J. Murphy, Anuj Gautam, Zachary R. Claytor
Accurate stellar ages and masses are essential for interpreting the demographics and physical properties of exoplanets, particularly for intermediate-mass, early-type stars where c…
Modelling Scuti pulsations: A new grid of p, g, and f modes across pre-main-sequence to post-main-sequence evolution
Anuj Gautam, Simon J. Murphy, Timothy R. Bedding
Space-based photometry reveals regular high-frequency patterns in many young Scuti stars. These pulsations provide a powerful means of inferring stellar properties, particularl…
The Scuti stars of the Cep--Her Complex. I: Pulsator fraction, rotation, asteroseismic large spacings, and the relation
Simon J. Murphy, Timothy R. Bedding, Anuj Gautam +2
We identify delta Scuti pulsators amongst members of the recently-discovered Cep--Her Complex using light curves from the Transiting Exoplanet Survey Satellite (TESS). We use Gaia…
Oscillation Frequencies of Moderately Rotating Delta Scuti Stars: Asymmetric Mode Splittings Due to Non-spherical Distortion
Zhao Guo, Timothy R. Bedding, A. A. Pamyatnykh +5
We find that the observed pressure-mode rotational splittings of slowly/moderately rotating Delta Scuti stars and Beta Cephei stars mostly have a positive asymmetry. That is, the l…
A grid of 200,000 models of young Scuti stars using MESA and GYRE
Simon J. Murphy, Timothy R. Bedding, Anuj Gautam +1
The rapidly increasing number of delta Scuti stars with regular patterns among their pulsation frequencies necessitates modelling tools to better understand the observations. Furth…