Zobrazeno 1 - 10
of 158
pro vyhledávání: '"Matt, Sean P."'
The magnetic activity level of low-mass stars is known to vary as a function of the physical properties of the star. Many studies have shown that the stellar mass and rotation are both important parameters that determine magnetic activity levels. In
Externí odkaz:
http://arxiv.org/abs/2307.01688
The importance of the existence of a radiative core in generating a solar-like magnetic dynamo is still unclear. Analytic models and magnetohydrodynamic simulations of stars suggest the thin layer between a star's radiative core and its convective zo
Externí odkaz:
http://arxiv.org/abs/2306.09119
The magnetic interaction between a classical T Tauri star and its surrounding accretion disk is thought to influence its rotational evolution. We use 2.5D magnetohydrodynamic, axisymmetric simulations of star-disk interaction, computed via the PLUTO
Externí odkaz:
http://arxiv.org/abs/2203.00326
Autor:
Ireland, Lewis G., Matt, Sean P., Davey, Charlie R., Harris, Owain L., Slade-Harajda, Tobias W., Finley, Adam J., Zanni, Claudio
On the main sequence, low-mass and solar-like stars are observed to spin-down over time, and magnetized stellar winds are thought to be predominantly responsible for this significant angular momentum loss. Previous studies have demonstrated that the
Externí odkaz:
http://arxiv.org/abs/2111.11082
Massive stars are strong sources of far-ultraviolet radiation that can be hostile to the evolution of protoplanetary disks, driving mass loss by external photoevaporation and shortening disk-dissipation timescales. Their effect may also reduce the ti
Externí odkaz:
http://arxiv.org/abs/2109.10296
We apply for the first time a two-dimensional fitting statistic, $\tau^2$, to rotational evolution models (REMs) of stars (0.1 to 1.3 $M_{\odot}$) on the period-mass plane. The $\tau^2$ statistic simultaneously considers all cluster rotation data to
Externí odkaz:
http://arxiv.org/abs/2103.13410
Understanding how the magnetic activity of low-mass stars depends on their fundamental parameters is an important goal of stellar astrophysics. Previous studies show that activity levels are largely determined by the stellar Rossby number which is de
Externí odkaz:
http://arxiv.org/abs/2103.05675
The rotational evolution of accreting pre-main-sequence stars is influenced by its magnetic interaction with its surrounding circumstellar disk. Using the PLUTO code, we perform 2.5D magnetohydrodynamic, axisymmetric, time-dependent simulations of st
Externí odkaz:
http://arxiv.org/abs/2011.01087
The Contribution of Alpha Particles to the Solar Wind Angular Momentum Flux in the Inner Heliosphere
Autor:
Finley, Adam J., McManus, Michael D., Matt, Sean P., Kasper, Justin C., Korreck, Kelly E., Case, Anthony W., Stevens, Michael L., Whittlesey, Phyllis, Larson, Davin, Livi, Roberto, Bale, Stuart D., de Wit, Thierry Dudok, Goetz, Keith, Harvey, Peter R., MacDowall, Robert J., Malaspina, David M., Pulupa, Marc
Publikováno v:
A&A 650, A17 (2021)
An accurate assessment of the Sun's angular momentum (AM) loss rate is an independent constraint for models that describe the rotation evolution of Sun-like stars. In-situ measurements of the solar wind taken by Parker Solar Probe (PSP), at radial di
Externí odkaz:
http://arxiv.org/abs/2011.00016
Autor:
Curtis, Jason Lee, Agüeros, Marcel A., Matt, Sean P., Covey, Kevin R., Douglas, Stephanie T., Angus, Ruth, Saar, Steven H., Cody, Ann Marie, Vanderburg, Andrew, Law, Nicholas M., Kraus, Adam L., Latham, David W., Baranec, Christoph, Riddle, Reed, Ziegler, Carl, Lund, Mikkel N., Torres, Guillermo, Meibom, Søren, Aguirre, Victor Silva, Wright, Jason T.
Recent measurements of rotation periods ($P_\text{rot}$) in the benchmark open clusters Praesepe (670 Myr), NGC 6811 (1 Gyr), and NGC 752 (1.4 Gyr) demonstrate that, after converging onto a tight sequence of slowly rotating stars in mass$-$period spa
Externí odkaz:
http://arxiv.org/abs/2010.02272