Exploring the M-dwarf Luminosity-Temperature-Radius Relationships using Gaia DR2doi:10.5281/ZENODO.4565843Sam MorrellTim NaylorCambridge Workshop on Cool Stars, Stellar Systems, and the Sun
3.2 Global trends of M dwarf windsHere, we investigate the overall trends found in our simulations. To extract the global quantities of the wind, we use the fact that the values for temperature and velocity are nearly constant at a large distance (|$\gtrsim 50\, r_0$|). We ...
parameters (effective temperature, surface gravity and metallicity), confirming that the carriers of DIBs are ubiquitous in the diffuse interstellar medium (... HB Yuan,XW Liu - 《Monthly Notices of the Royal Astronomical Society》 被引量: 21发表: 2012年 Metallicity of M dwarfs IV. A high-pre...
decline of the spot-to-photosphere temperature contrast with spectral type, from >1500 K for G dwarfs to a few hundred K for M dwarfs (Berdyugina 2005), and the lack of high-contrast temperature inhomogeneities in the local magnetohydrodynamical simulations of M-dwarf atmospheres (Beeck et ...
(2015) have since demonstrated that equivalent widths alone of some M dwarf spectral features encode not only metallicity, but their stellar radii and effective temperature as well [97]. Recent work, which we describe more in Section 3.1, suggests that metallicity metrics contain a hidden ...
it will achieve two orbits, a dizzying speed on top of a 2,200-degree Fahrenheit temperature in excess. This larger-than-Earth planet copies Mercury in that its atmosphere is constantly sheared off by the intense heat and closeness to the M Dwarf. Mercury, however, does have an atmosphere ...
appropriate amounts of seawater for habitability. Such an occurrence rate would be high enough to detect potentially habitable planets by ongoing and near-future M-dwarf planet survey missions. Access Nature and 54 other Nature Portfolio journals...
(like Mercury) there can be a large temperature difference between the day and night sides. While the day side may be too hot for maintaining liquid water, the water on the night side is frozen, unless too much heat is transported from the day side (e.g. by atmospheric convection) ...
James Webb can provide higher resolution data that can tell us about what kind of gases are present in the atmosphere of a planet orbiting an M-dwarf star. This data can bring out details such as a planet's temperature, revealing the potential for the right conditions to exist for life. ...
As part of this analysis, we provide new analytic fits to the Kepler early M dwarf planet occurrence distribution. When extrapolating between Kepler's early M dwarfs and MEarth's mid-to-late M dwarfs, we find that assuming the planet occurrence distribution stays fixed with respect to ...