18 Citations
Propulsion of Spacecraft to Relativistic Speeds Using Natural Astrophysical Sources
- PhysicsThe Astrophysical Journal
- 2020
In this paper, we explore from a conceptual standpoint the possibility of using natural astrophysical sources to accelerate spacecrafts to relativistic speeds. We focus on light sails and electric…
A Multiwavelength Look at the GJ 9827 System: No Evidence of Extended Atmospheres in GJ 9827b and d from HST and CARMENES Data
- Physics, Geology
- 2021
GJ 9827 is a bright star hosting a planetary system with three transiting planets. As a multiplanet system with planets that sprawl within the boundaries of the radius gap between terrestrial and…
Astrospheres of Planet-Hosting Cool Stars and Beyond ⋅ When Modeling Meets Observations
- Physics, GeologySpace Science Reviews
- 2022
Thanks to dedicated long-term missions like Voyager and GOES over the past 50 years, much insight has been gained on the activity of our Sun, the solar wind, its interaction with the interstellar…
Universal Scaling Laws for Solar and Stellar Atmospheric Heating
- PhysicsThe Astrophysical Journal
- 2022
The Sun and Sun-like stars commonly host multimillion-kelvin coronae and 10,000 K chromospheres. These extremely hot gases generate X-ray and extreme ultraviolet emissions that may impact the erosion…
An M Dwarf’s Chromosphere, Corona, and Wind Connection via Nonlinear Alfvén Waves
- PhysicsThe Astrophysical Journal
- 2021
An M dwarf’s atmosphere is expected to be highly magnetized. The magnetic energy can be responsible for heating the stellar chromosphere and corona and driving the stellar wind. The nonlinear…
Superflares, Chromospheric Activities, and Photometric Variabilities of Solar-type Stars from the Second-year Observation of TESS and Spectra of LAMOST
- Physics, Geology
- 2021
In this work, 1272 superflares on 311 stars are collected from 22,539 solar-type stars from the second-year observation of the Transiting Exoplanet Survey Satellite (TESS), which almost covered the…
The Dipolar Solar Minimum Corona
- PhysicsUniverse
- 2021
The large-scale configuration of the UV solar corona at the minimum activity between solar cycles 22 and 23 is explored in this paper. Exploiting a large sample of spectroscopic observations acquired…
UV astronomy and the investigation of the origin of life
- PhysicsUltraviolet Astronomy and the Quest for the Origin of Life
- 2021
Atmospheric Escape Processes and Planetary Atmospheric Evolution
- Physics, Geology
- 2020
The habitability of the surface of any planet is determined by a complex evolution of its interior, surface, and atmosphere. The electromagnetic and particle radiation of stars drive thermal, chemi...
Atmospheric Escape Processes and Planetary Atmospheric Evolution
- Physics, GeologyJournal of Geophysical Research: Space Physics
- 2020
The habitability of the surface of any planet is determined by a complex evolution of its interior, surface, and atmosphere. The electromagnetic and particle radiation of stars drive thermal,…