A single H II region model of the strong interstellar scattering towards Sgr A [PDF]
, 2016 Until recently, the strong interstellar scattering observed towards the Galactic center (GC) black hole, Sgr A*, was thought to come from dense gas within the GC region.
Egid Sicheneder, J. Dexter
semanticscholar +1 more source
, 2020 We introduce a novel analysis technique for pulsar secondary spectra. The power spectrum of pulsar scintillation (referred to as the ‘secondary spectrum’) shows differential delays and Doppler shifts due to interference from multipath propagation ...
T. Sprenger +4 more
semanticscholar +1 more source
Quantum Dynamics of Rotational Transitions in CN (X2Σ+) by H+ Collisions
Frontiers in Chemistry, 2021 Collisional cross-sections of inelastic rotational excitations of CN in its ground electronic state (X2Σ+) by H+ scattering are studied by the exact quantum mechanical close-coupling (CC) method at very low collision energies (0–600 cm−1) relevant to ...
Bhargava Anusuri +2 more
doaj +1 more source
CORRECTING FOR INTERSTELLAR SCATTERING DELAY IN HIGH-PRECISION PULSAR TIMING: SIMULATION RESULTS [PDF]
, 2015 Light travel time changes due to gravitational waves (GWs) may be detected within the next decade through precision timing of millisecond pulsars. Removal of frequency-dependent interstellar medium (ISM) delays due to dispersion and scattering is a key ...
N. Palliyaguru +4 more
semanticscholar +1 more source
Angular Scattering in Charge Exchange: Issues and Implications for Secondary Interstellar Hydrogen [PDF]
Astrophysical Journal, 2019 Interstellar neutral atoms provide a remote diagnostic of plasma in the outer heliosheath and the very local interstellar medium via charge exchange collisions that convert ions into atoms and vice versa.
P. Swaczyna +3 more
semanticscholar +1 more source
Probing interstellar scattering towards the Galactic centre with pulsar VLBI [PDF]
, 2015 Temporal scatter-broadening can seriously affect our ability to find pulsars orbiting the central mass in our Galaxy. Many of these invaluable probes of geometry around the black hole are expected, but none have been found in close orbits so far ...
O. Wucknitz
semanticscholar +1 more source
Symposium - International Astronomical Union, 1984 Fine scale electron density fluctuations in the interstellar medium (ISM) are manifest as scintillations and temporal broadening of pulsar signals and as angular broadening of galactic and extragalactic sources. Although scattering off the fluctuations is often a nuisance for conventional studies of radio sources, analysis or searches for interstellar ...
openaire +1 more source
Interstellar Scattering in the Galactic Anticenter [PDF]
International Astronomical Union Colloquium, 1998 AbstractInterstellar scattering dictates the limiting resolution for many pulsars and OH masers and some extragalactic sources, a limit made more important by the advent of spacebased VLBI. Scattering observations have been biased toward the inner Galaxy, leaving largely unconstrained basic parameters such as the scattering medium’s extent in the outer
T. Joseph W. Lazio, James M. Cordes
openaire +1 more source
High‐Pressure Carbonaceous Phases as Minerals
Geophysical Monograph Series, Page 11-23., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Oliver Tschauner
wiley +1 more source
Two-component model for the interstellar scattering in direction to the Vela pulsar [PDF]
, 2005 This paper discusses a rigorous treatment of the refractive scintillation of pulsar PSR B0833-45 caused by a two-component interstellar scattering medium.
Zhou, AZ +5 more
core +1 more source