Search Results for author: Mikkel N. Lund

Found 4 papers, 2 papers with code

Asteroseismology of the Hyades red giant and planet host epsilon Tauri

no code implementations18 Jan 2019 Torben Arentoft, Frank Grundahl, Timothy R. White, Ditte Slumstrup, Rasmus Handberg, Mikkel N. Lund, Karsten Brogaard, Mads F. Andersen, Victor Silva Aguirre, Chunguang Zhang, Xiaodian Chen, Zhengzhou Yan, Benjamin J. S. Pope, Daniel Huber, Hans Kjeldsen, Jørgen Christensen-Dalsgaard, Jens Jessen-Hansen, Victoria Antoci, Søren Frandsen, Timothy R. Bedding, Pere L. Palle, Rafael A. Garcia, Licai Deng, Marc Hon, Dennis Stello, Uffe G. Jørgensen

Using asteroseismic techniques combined with other methods, we aim to derive physical parameters and the evolutionary stage for the planet hosting star epsilon Tau, which is one of the four red giants located in the Hyades.

Solar and Stellar Astrophysics

Inference of stellar parameters from brightness variations

1 code implementation11 May 2018 Melissa K. Ness, Victor Silva Aguirre, Mikkel N. Lund, Matteo Cantiello, Daniel Foreman-Mackey, David W. Hogg, Ruth Angus

We find that this model, trained using 1000 stars, can be used to recover the temperature $T_{\rm eff}$ to $<$100 K, the surface gravity to $<$ 0. 1 dex, and the asteroseismic power-spectrum parameters $\rm \nu_{max}$ and $\rm \Delta{\nu}$ to $<11$ $\mu$Hz and $<0. 9$ $\mu$Hz ($\lesssim$ 15\%).

Solar and Stellar Astrophysics

Aldebaran b's temperate past uncovered in planet search data

no code implementations27 Feb 2018 Will M. Farr, Benjamin J. S. Pope, Guy R. Davies, Thomas S. H. North, Timothy R. White, Jim W. Barrett, Andrea Miglio, Mikkel N. Lund, Victoria Antoci, Mads Fredslund Andersen, Frank Grundahl, Daniel Huber

The nearby red giant Aldebaran is known to host a gas giant planetary companion from decades of ground-based spectroscopic radial velocity measurements.

Solar and Stellar Astrophysics Earth and Planetary Astrophysics

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