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Stellar Wind and the Efficiency of Plasma Radio Emission from Exoplanets

Abstract

We present the results of our study of the influence of stellar activity on the efficiency of the plasma radio emission generation mechanism...

V. V. Zaitsev, V. E. Shaposhnikov, ... M. S. Rumenskikh in Astronomy Letters

Article 01 January 2024

Interaction of the Exoplanet Hat–P–11b with Stellar Wind

Abstract

We discuss possible existence of a magnetodisk around the exoplanet HAT–P–11b. We used available observations to determine properties of the...

E. S. Belenkaya in Astronomy Reports

Article Open access 01 November 2023

Kinetic Model of the Effect of the Stellar Wind on the Extended Hydrogen Atmosphere of the Exoplanet π Men c

Abstract

In this work, the kinetic model of aeronomy of the upper atmosphere of an exoplanet is extended by including the effect of stellar wind...

A. A. Avtaeva, V. I. Shematovich in Astronomy Reports

Article 01 October 2023

Transition from Super-Alfvénic to Sub-Alfvénic Stellar Wind Flow Passing by an Exoplanet, Using the Example of HD 209458b

Abstract

Depending on the distance of the exoplanet from the central star and the properties of this star, different regimes of stellar wind flow...

E. S. Belenkaya in Astronomy Reports

Article Open access 01 March 2024

Magnetic Barrier in Front of Exoplanets Interacting with Stellar Wind

The interaction between the magnetized stellar wind plasma and the hydrodynamic flow from the upper atmosphere of a non-magnetic exoplanet is...

Nikolai V. Erkaev, Kseniya D. Gorbunova in Problems of Geocosmos—2022

Conference paper 2023

Interaction of the Supersonic Stellar Wind with Free Stream of the Interstellar Medium: the Effect of the Azimuthal Magnetic Field of the Star

Abstract

The problem of the interaction of a hypersonic stellar wind with the surrounding interstellar medium is considered. The media are assumed to...

S. D. Korolkov, V. V. Izmodenov in Fluid Dynamics

Article 01 February 2023

Evolution of the X-ray Binary System Sco X-1 within the Framework of the Induced Stellar Wind Model

Abstract

Within the framework of the induced stellar wind (ISW) model, the possible evolution of the X-ray binary system Sco X-1 after the formation...

A. V. Fedorova, A. V. Tutukov in Astronomy Reports

Article 01 November 2022

Stellar Magnetic Fields

Stellar magnetic fields are directly detected or inferred across the whole Hertzsprung--Russell Diagram. Attention in this chapter is concentrated on...

Leon Mestel, John D. Landstreet in Cosmic Magnetic Fields

Chapter

Ultraviolet spectropolarimetry: investigating stellar magnetic field diagnostics

Magnetic fields are important for stellar photospheres and magnetospheres, influencing photospheric physics and sculpting stellar winds. Observations...

C. P. Folsom, R. Ignace, ... G. A. Wade in Astrophysics and Space Science

Article 14 December 2022

Scaling and Evolution of Stellar Magnetic Activity

Magnetic activity is a ubiquitous feature of stars with convective outer layers, with implications from stellar evolution to planetary atmospheres....

Emre Işık, Jennifer L. van Saders, ... Travis S. Metcalfe in Space Science Reviews

Article Open access 30 October 2023

An abrupt change in the stellar spin-down law at the fully convective boundary

Unlike partially convective stars such as the Sun, fully convective stars do not possess a radiative core. Whether a star needs this core to generate...

Yuxi (Lucy) Lu, Victor See, ... Sean P. Matt in Nature Astronomy

Article 13 November 2023

Stellar Coronae

The vast majority of “normal” hydrogen-burning stars are of mass equal to or lower than that of our Sun, and they share with our host star the...

Jeremy J. Drake, Beate Stelzer in Handbook of X-ray and Gamma-ray Astrophysics

Reference work entry 2024

Magnetically Confined Wind Shock

Many stars across all classes possess strong enough magnetic fields to influence dynamical flow of material off the stellar surface. For the case of...

Asif ud-Doula, Stan Owocki in Handbook of X-ray and Gamma-ray Astrophysics

Reference work entry 2024

Interaction between Internal Shocks and the Reverse Shock for a GRB in a Dense Stellar Wind

In the most popular scenario for GRBs a relativistic shell is produced by a compact central source (collapsar, BH + WD, BH + NS or NS + NS merger)...

Frédéric Daigne, Robert Mochkovitch in Gamma-Ray Bursts in the Afterglow Era

Conference paper

Computational methods for collisional stellar systems

Dense star clusters are spectacular self-gravitating stellar systems in our Galaxy and across the Universe—in many respects. They populate disks and...

Rainer Spurzem, Albrecht Kamlah in Living Reviews in Computational Astrophysics

Article Open access 06 September 2023

Stellar Evolution

In principle, there are the following stages in stellar evolution:...

Arnold Hanslmeier in Introduction to Astronomy and Astrophysics

Chapter 2023

Stellar Coronae

The vast majority of “normal” hydrogen-burning stars are of mass equal to or lower than that of our Sun, and they share with our host star the...

Jeremy J. Drake, Beate Stelzer in Handbook of X-ray and Gamma-ray Astrophysics

Living reference work entry 2023

Magnetically Confined Wind Shock

Many stars across all classes possess strong enough magnetic fields to influence dynamical flow of material off the stellar surface. For the case of...

Asif ud-Doula, Stan Owocki in Handbook of X-ray and Gamma-ray Astrophysics

Living reference work entry 2023

Science with a Small Two-Band UV-Photometry Mission II: Observations of Stars and Stellar Systems

We outline the impact of a small two-band UV-photometry satellite mission on the field of stellar physics, magnetospheres of stars, binaries, stellar...

Jiří Krtička, Jan Benáček, ... Norbert Werner in Space Science Reviews

Article Open access 13 March 2024