Results 131 to 140 of about 736 (212)

Direct Very Long Baseline Interferometry Detection of Interstellar Turbulence Imprint on a Quasar: TXS 2005+403

The Astrophysical Journal Letters
We report the first unambiguous detection of refractive substructure in an active galactic nucleus (AGN) using ground-based very long baseline interferometry (VLBI).
A. V. Plavin, A. B. Pushkarev, Y. Y. Kovalev   +2 more
doaj   +1 more source

FAST: Its Scientific Achievements and Prospects. [PDF]

Innovation (Camb), 2020
Qian L, Yao R, Sun J, Xu J, Pan Z, Jiang P.   +5 more
europepmc   +1 more source

Detecting Dark Objects with Plasma Microlensing by Their Gravitational Wakes

The Astrophysical Journal
A moving mass makes a gravitational wake in the partially ionized interstellar medium, which acts as a lens for radio-frequency light. Consequently, plasma microlensing could complement gravitational microlensing in the search for invisible massive ...
M. Sten Delos
doaj   +1 more source

Shanghai Tianma Radio Telescope and Its Role in Pulsar Astronomy

Universe
After two phases of on-site construction and testing (2010–2013 and 2013–2017), the Shanghai Tianma Radio Telescope (TMRT) can work well, with efficiencies better than 50% from 1.3 to 50.0 GHz, mainly benefiting from its low-noise cryogenic receivers and
Zhen Yan, Zhiqiang Shen, Yajun Wu, Rongbing Zhao, Jie Liu, Zhipeng Huang, Rui Wang, Xiaowei Wang, Qinghui Liu, Bin Li, Jinqing Wang, Weiye Zhong, Wu Jiang, Bo Xia   +13 more
doaj   +1 more source

The dissipation of magnetohydrodynamic turbulence responsible for interstellar scintillation and the heating of the interstellar medium

The Astrophysical Journal, 1991
The present reexamination of the problem of ISM heating via the damping of plasma irregularities responsible for interstellar scintillations of radio sources gives attention to the effects of recent observational results on the hot plasma of the irregularities and on developments of in the theory of MHD waves.
openaire   +1 more source

Spectral Properties of Globally Distributed ENA Fluxes across Diverse Regions of the Heliosphere

The Astrophysical Journal
This study analyzes energetic neutral atom (ENA) spectral properties across distinct regions of globally distributed flux (GDF) sky maps, using Interstellar Boundary Explorer data from a full solar cycle, corrected for time dispersion.
Thomas K. Kim, Daniel B. Reisenfeld, Eric J. Zirnstein, Paul H. Janzen, Asher S. Merrill, Sung Jun Noh, Nehpreet K. Walia, Yue Chen, Fan Guo, Dave Osthus, Lauren J. Beesley, Dae-Kyu Shin, Justyna M. Sokół, Maciej Bzowski, Marzena A. Kubiak, Czeslaw Porowski, Herbert O. Funsten   +16 more
doaj   +1 more source

Turbulence in the Local Interstellar Medium and the <i>IBEX</i> Ribbon. [PDF]

Astrophys J, 2020
Zirnstein EJ, Giacalone J, Kumar R, McComas DJ, Dayeh MA, Heerikhuisen J.   +5 more
europepmc   +1 more source

Timing and Scintillation Studies of Pulsars in Globular Cluster M3 (NGC 5272) with FAST

The Astrophysical Journal
We present the phase-connected timing solutions of all five pulsars in globular cluster M3 (NGC 5272), namely PSRs M3A to F (PSRs J1342+2822A to F), with the exception of PSR M3C, from FAST archival data.
Baoda Li, Li-yun Zhang, Jumei Yao, Dejiang Yin, Ralph P. Eatough, Minghui Li, Yifeng Li, Yujie Lian, Yu Pan, Yinfeng Dai, Yaowei Li, Xingnan Zhang, Tianhao Su, Yuxiao Wu, Tong Liu, Kuo Liu, Lin Wang, Lei Qian, Zhichen Pan   +18 more
doaj   +1 more source

Finding the Ionospheric Fluctuations Reflection in the Pulsar Signals' Characteristics Observed with LOFAR. [PDF]

Sensors (Basel), 2020
Błaszkiewicz LP, Flisek P, Kotulak K, Krankowski A, Lewandowski W, Kijak J, Froń A.   +6 more
europepmc   +1 more source

A repeating fast radio burst associated with a persistent radio source. [PDF]

Nature, 2022
Niu CH, Aggarwal K, Li D, Zhang X, Chatterjee S, Tsai CW, Yu W, Law CJ, Burke-Spolaor S, Cordes JM, Zhang YK, Ocker SK, Yao JM, Wang P, Feng Y, Niino Y, Bochenek C, Cruces M, Connor L, Jiang JA, Dai S, Luo R, Li GD, Miao CC, Niu JR, Anna-Thomas R, Sydnor J, Stern D, Wang WY, Yuan M, Yue YL, Zhou DJ, Yan Z, Zhu WW, Zhang B.   +34 more
europepmc   +1 more source