The Quest for Pulsating M Dwarf Stars

DOI: 
10.3389/fspas.2019.00076
Publication date: 
31/12/2019
Main author: 
Rodriguez-Lopez, Cristina
IAA authors: 
Rodriguez-Lopez, Cristina
Authors: 
Rodriguez-Lopez, Cristina
Journal: 
Frontiers in Astronomy and Space Sciences
Refereed: 
Yes
Publication type: 
Review
Volume: 
6
Pages: 
A76
Abstract: 
Recent fully non-adiabatic theoretical studies of M dwarf models show that they have the potential to excite radial, and low-order, low-degree non-radial modes, as well as solar-like oscillations, due to models being completely convective or having large convective envelopes. The observational efforts aiming at discovering pulsating M dwarfs with photometric ground-based and space observations, and with high-precision spectroscopy are presented. With periods predicted in the 20 min to 3 h range and empirically estimated amplitudes of just a few mu mag or a few tens of cm s(-1), a clear detection of a pulsating M dwarf has not yet been achieved, and the race is still open. The precision attained by the latest-generation high-resolution spectrographs, of the order of cm s(-1), may be the key to unveil the, until today, elusive pulsations in M dwarf stars.
Database: 
WOK
SCOPUS
URL: 
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85079417495&doi=10.3389%2ffspas.2019.00076&partnerID=40&md5=c9cf24d7943457c3376494643b8fc5e3
Keywords: 
low-mass stars; M dwarf stars; stellar pulsations; stellar oscillations; asteroseismology