Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Magnetospheric radio emissions"'
Autor:
Ping Li, Sai Zhang, Fuliang Xiao, Hongming Yang, Shengyi Ye, Si Liu, Yihua He, Qiwu Yang, Jiawen Tang, Archie James Johnston
Publikováno v:
The Astrophysical Journal Letters, Vol 966, Iss 2, p L26 (2024)
Auroral kilometric radiation (AKR) is a widely existing strong radio emission from the Earth’s magnetosphere and is generated by suprathermal (1–10 keV) electrons in the polar cavity. Previous works have demonstrated that AKR can contribute to th
Externí odkaz:
https://doaj.org/article/a379165c21624fa09501d6ac9b131dd5
Autor:
Shunshun Cao, Jinchen Jiang, Jaroslaw Dyks, Longfei Hao, Kejia Lee, Zhixuan Li, Jiguang Lu, Zhichen Pan, Weiyang Wang, Zhengli Wang, Jiangwei Xu, Heng Xu, Renxin Xu
Publikováno v:
The Astrophysical Journal, Vol 973, Iss 1, p 56 (2024)
As one of the paradigm examples to probe into pulsar magnetospheric dynamics, PSR B0943+10 (J0946+0951) manifests representatively, showing a mode switch, orthogonal polarization, and subpulse drifting, frequently studied below 600 MHz. Here, both in
Externí odkaz:
https://doaj.org/article/7bcc9d7246e746bfb98b88dd64bdd01f
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 2, p 154 (2024)
In the planetary magnetosphere, plasma waves act as the medium for particles to transfer energy. Jupiter is the largest planet in our solar system, and the giant magnetosphere is full of energetic particles, producing intense radio emissions. When in
Externí odkaz:
https://doaj.org/article/11d96e7e1ff9461c9fd26891147bfa20
Publikováno v:
The Astronomical Journal, Vol 168, Iss 3, p 127 (2024)
We present results from a search for radio emission in 77 stellar systems hosting 140 exoplanets, predominantly within 17.5 pc using the Very Large Array (VLA) at 4–8 GHz. This is the largest and most sensitive search to date for radio emission in
Externí odkaz:
https://doaj.org/article/70e6f5187e7e414ba195059e9d017dbd
Autor:
Matthew Route
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 55 (2024)
Plasma flow–obstacle interactions, such as those between an exoplanet’s magnetosphere and the host star’s stellar wind, may lead to detectable radio emissions. Despite many attempts to detect magnetospheric (auroral) radio emissions from exopla
Externí odkaz:
https://doaj.org/article/4fe97ec4c911472ea93df01c0ecbb0f1
Autor:
Zhengli Wang, Jiguang Lu, Jinchen Jiang, Shunshun Cao, Kejia Lee, Enwei Liang, Lunhua Shang, Weiyang Wang, Renxin Xu, Weiwei Zhu
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 1, p 65 (2024)
We observed the nearby radio pulsar B0950+08, which has a 100% duty cycle, using the Five-hundred-meter Aperture Spherical Radio Telescope. We obtained the polarization profile for its entire rotation, which enabled us to investigate its magnetospher
Externí odkaz:
https://doaj.org/article/31626796485f4c0ba2d383a581a39609
Autor:
Elias R. Most, Alexander A. Philippov
Publikováno v:
The Astrophysical Journal Letters, Vol 956, Iss 2, p L33 (2023)
The presence of magnetic fields in the late inspiral of black hole–neutron star binaries could lead to potentially detectable electromagnetic precursor transients. Using general-relativistic force-free electrodynamics simulations, we investigate pr
Externí odkaz:
https://doaj.org/article/c040eb23952444228ac5ca99879cb280
Autor:
Kovi Rose, Joshua Pritchard, Tara Murphy, Manisha Caleb, Dougal Dobie, Laura Driessen, Stefan W. Duchesne, David L. Kaplan, Emil Lenc, Ziteng Wang
Publikováno v:
The Astrophysical Journal Letters, Vol 951, Iss 2, p L43 (2023)
We present the detection of rotationally modulated, circularly polarized radio emission from the T8 brown dwarf WISE J062309.94−045624.6 between 0.9 and 2.0 GHz. We detected this high-proper-motion ultracool dwarf with the Australian SKA Pathfinder
Externí odkaz:
https://doaj.org/article/818c656745ed4a48b7c91dc710022984
Publikováno v:
The Astrophysical Journal, Vol 958, Iss 2, p 152 (2023)
Although the majority of hot magnetic stars have extremely stable, ∼kilogauss strength surface magnetic fields with simple topologies, a subset undergoes small-scale explosions due to centrifugal breakout. The resulting small-scale flares are typic
Externí odkaz:
https://doaj.org/article/60face89c6a24730ad63f64bcc95a42d
Autor:
Matthew Route, Alexander Wolszczan
Publikováno v:
The Astrophysical Journal, Vol 952, Iss 2, p 118 (2023)
After nearly three decades of discovery, many exoplanetary systems have been studied and characterized in detail with one important exception: exoplanet magnetism. Although many surveys sought to detect magnetospheric radio emissions from exoplanets
Externí odkaz:
https://doaj.org/article/886a04668ed74ba1a0afd408af05bf7c