Exoplanets and Stellar Activity
Stellar magnetic activity and exoplanets
... magnetic activity and exoplanets ...magnetic activity could be enhanced due to interactions between close-in massive planets and their host ...between stellar magnetic activity and ...
6
Disentangling stellar activity and planetary signals
... fitting activity and planetary signals on GJ674 and ...the stellar active jitter. We excluded short-period low-mass exoplanets around ι ...and stellar-activity induced-RV variations ...
6
Disentangling stellar activity from exoplanetary signals with interferometry
... Abstract. Stellar activity can express as many forms at stellar surfaces: dark spots, convective cells, bright ...detect exoplanets, and thus lead to false detection or disrupt their derived ...
5
On the abundance of circumbinary exoplanets
... 8 490 6 328 4 143 low sample sizes, a subsample of the failed systems were examined to determine the cause of the recovery failure. In ⇠ 50% of R p = 10R cases this was light curve noise or stellar activity ...
159
Transiting the Sun II The impact of stellar activity on Lyα transits
... transiting exoplanets in the presence of stellar ...of stellar activity on the measured planet-to-star radius ratio ( R p / R å ) ...with activity levels comparable to the Sun, ...
7
Effect of stellar activity on the high precision transit light curve
... of stellar active regions on transmission spectra Most attempts in characterizing exoplanetary atmospheres have been made by using the transmission spectroscopy (multiband photometry) of transiting ...of ...
5
Lightning on exoplanets and brown dwarfs
... Casewell et al., 2012, 2013, 2015), the characteristics of the companion may also play a role in the production of lightning discharges. 5.5 Summary This chapter uses Solar System lightning statistics for a first ...
250
A chemical survey of exoplanets with ARIEL
... warm/hot exoplanets, and in particular of their elemental composition (especially C, O, N, S, Si), will allow the understanding of the early stages of planetary and atmospheric formation during the nebular phase ...
75
A chemical survey of exoplanets with ARIEL
... warm/hot exoplanets, and in particular of their elemental composition (especially C, O, N, S, Si), will allow the understanding of the early stages of planetary and atmospheric formation during the nebular phase ...
76
A chemical survey of exoplanets with ARIEL
... of exoplanets have now been discovered with a huge range of masses, sizes and orbits: from rocky Earth-like planets to large gas giants grazing the surface of their host ...these exoplanets remains largely ...
75
Things that go bump in the light : an investigation into the effects of stellar activity on extrasolar planets
... South Africa are both comprised of two arrays of camera lenses attached to sensitive CCDs. They scan the night sky observing thousands of stars for transit events. Any suspected transit events are then followed up on ...
167
Stellar magnetism and activity : from stellar interiors to orbiting exoplanets
... An explanation for the differing magnetic topologies on each branch may lie in the dy- namos of these stars. It is thought that strong shearing, i.e. an Ω -effect, can generate toroidal field from a poloidal field. ...
162
The effects of stellar winds on the magnetospheres and potential habitability of exoplanets
... Using the wind models of Parker (1958) and Cranmer & Saar (2011), we estimated the magnetospheric extent of a hypotheti- cal Earth orbiting each star in a sample of 124 solar-type stars. Within this modest sample, only a ...
10
On the effects of stellar winds on the magnetospheres and potential habitability of exoplanets
... Other factors, such as the size of the auroral oval or whether the atmosphere is being replenished, will also determine if a sta- ble atmosphere is present. These conditions vary from planet to planet and our chosen ...
11
The effects of stellar winds on the magnetospheres and potential habitability of exoplanets
... Using the wind models of Parker (1958) and Cranmer & Saar (2011), we estimated the magnetospheric extent of a hypotheti- cal Earth orbiting each star in a sample of 124 solar-type stars. Within this modest sample, only a ...
10
The host stars of Kepler's habitable exoplanets : superflares, rotation and activity
... Core-mantle interactions can also weaken the generated field. 4.5 Stellar mass-loss rates Most of the mass-loss rates reported in Table 4 are an order of magnitude or more lower than the solar value. Calculating ...
17
Stellar magnetic activity – Star-Planet Interactions
... Abstract. Stellar magnetic activity is an important factor in the formation and evolution of ...like stellar flares, coronal mass ejections, and high- energy emission affect the exoplanetary atmosphere ...
6
Formation and Migration Histories of Giant Exoplanets in Multi-stellar Systems
... find stellar companions have been successful in finding larger and closer-in binary star systems in the past, the typical companion in this dissertation would be beyond the reach of these ...a stellar ...
191
Monte Carlo Simulations of Atmospheric Loss by Stellar Winds from Exoplanets
... the planet’s size, orbital period, and semi-major axis, along with the important ability of being able to detect the presence of exoplanetary atmospheres. Other useful detection methods include gravitation lensing, a ...
38
Constraining stellar physics from red-giant stars in binaries – stellar rotation, mixing processes and stellar activity
... of stellar structure and evolution - in particular for solar-like oscillators in this ...the stellar rotation, dynamics and rotational mixing of elements and allows us to learn from the differ- ences we ...
9