10.5281/zenodo.4562340
https://zenodo.org/records/4562340
oai:zenodo.org:4562340
Ó Fionnagáin, D.
D.
Ó Fionnagáin
0000-0001-9747-3573
NUI Galway
Vidotto, A. A.
A. A.
Vidotto
Trinity College Dublin
Petit, P.
P.
Petit
IRAP, Université de Toulouse
Neiner, C.
C.
Neiner
LESIA, Paris Observatory
Manchester IV, W.
W.
Manchester IV
University of Michigan
Folsom, C. P.
C. P.
Folsom
IRAP, Université de Toulouse
Hallinan, G.
G.
Hallinan
California Institute of Technology
λ Andromedae: Driving a post-main sequence wind from a solar-mass star
Zenodo
2021
Post main sequence cool stars
2021-02-25
eng
Poster
10.5281/zenodo.4562339
https://zenodo.org/communities/coolstars20half
v1
Creative Commons Attribution 4.0 International
We simulated the wind of lambda Andromeda, using two 3D MHD approaches. We modelled the wind as being hot (coronal-driven) and cold (Alfvén wave driven). From these simulations we can derive thermal radio emission from the stellar wind. By comparing this flux density to archival observations of the star, we can place tight constraints on our wind model. We found a mass-loss rate of \(3 \times 10^{-9} \rm{M}_{\odot} \rm{yr}^{-1}\) which agrees with evolutionary trends in mass-loss rates for stars of this type. Further radio observations of this object would be neccessary to determine the exact mechanism producing the radio emission from this star, and therefore aid in tightening the constraints on the wind models.