Results 1 to 10 of about 39,097 (209)
Interstellar Absorption and Dust Scattering
, 2023 Invited chapter for the "handbook of X-ray and Gamma-ray Astrophysics" (Eds. C. Bambi and A. Santangelo, Springer Singapore, 2022).
E Costantini
exaly +4 more sources
Improving Pulsar Distances by Modelling Interstellar Scattering [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 We present here a method to study the distribution of electron density fluctuations in pulsar directions as well as to estimate pulsar distances. The method, based on a simple two-component model of the scattering medium discussed by Gwinn et al. (1993),
Deshpande, A. A., Ramachandran, R.
core +7 more sources
Interstellar Scintillation and Scattering of Micro-arc-second AGN
Galaxies, 2016 The discovery of the first quasar 3C 273 led directly to the discovery of their variability at optical and radio wavelengths. We review the radio variability observations, in particular the variability found at frequencies below 1 GHz, as well as those ...
David L. Jauncey +9 more
doaj +3 more sources
Some Scattering Problems of Interstellar Grains [PDF]
Symposium - International Astronomical Union, 1973 Some general effects of size, shape, and material on the scattering properties of small particles are considered with a view to determining their relative importance to interstellar dust interpreatations.
J Mayo Greenberg
exaly +2 more sources
Pulsar Scattering as a Probe for Structures in the Interstellar Medium
The Astrophysical JournalDue to the inhomogeneity of electron number density, radio waves emitted by pulsars undergo scattering as they pass through the interstellar medium (ISM).
Qiuyi He, Xun Shi, Guangxing Li
doaj +3 more sources
Associations between Scattering Screens and Interstellar Medium Filaments
The Astrophysical JournalPulsar scintillation can be used to measure small-scale structure in the Galaxy, but little is known about the specific interstellar medium (ISM) features that cause scintillation.
Ashley M. Stock, Marten H. van Kerkwijk
doaj +3 more sources
Positron scattering from interstellar phosphorus-bearing compounds. [PDF]
RSC AdvThis article reports an investigation of positron impact scattering from several phosphorus-bearing compounds detected in the interstellar medium.
Chakraborty I, Uddin N, Antony B.
europepmc +3 more sources
Electric field representation of pulsar intensity spectra [PDF]
, 2005 Pulsar dynamic spectra exhibit high visibility fringes arising from interference between scattered radio waves. These fringes may be random or highly ordered patterns, depending on the nature of the scattering or refraction.
Bignall +25 more
core +11 more sources
Scattering Delay Mitigation in High-accuracy Pulsar Timing: Cyclic Spectroscopy Techniques
The Astrophysical Journal, 2023 We simulate scattering delays from the interstellar medium to examine the effectiveness of three estimators in recovering these delays in pulsar timing data. Two of these estimators use the more traditional process of fitting autocorrelation functions to
Jacob E. Turner +5 more
doaj +1 more source
Constraints on the IBEX Ribbon’s Origin from Its Evolution over a Solar Cycle
The Astrophysical Journal, 2023 In 2009, the Interstellar Boundary Explorer (IBEX) discovered a narrow “ribbon” of energetic neutral atom emissions across the sky with properties correlated with the solar wind latitudinal structure and the interstellar magnetic field draped around the ...
E. J. Zirnstein +3 more
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