Results 31 to 40 of about 848,098 (285)
On the galactic distributions of radio pulsars and plasma density [PDF]
Serbian Astronomical Journal, 2016 A brief review of distance measurement methods for some astronomical sources is presented. Galactic plasma density distribution as related to the distribution of radio pulsars is discussed and a method for constructing relations between ...
Ankay A., Yazgan E., Kutukcu P.
doaj +1 more source
Calculation and Uncertainty of Fast Radio Burst Structure Based on Smoothed Data
The Astrophysical Journal, 2023 Studies of the time-domain structure of fast radio bursts (FRBs) require an accurate estimate of the FRB dispersion measure in order to recover the intrinsic burst shape.
Adrian T. Sutinjo +9 more
doaj +1 more source
Sensors, 2022 The article presents the analysis of the impact point dispersion reduction using lateral correction thrusters. Two types of control algorithms are used and four sources of uncertainties are taken into account: aerodynamic parameters, thrust curve ...
Mariusz Jacewicz +3 more
doaj +1 more source
Extragalactic dispersion measures of fast radio bursts
, 2015 Fast radio bursts show large dispersion measures, much larger than the Galactic dispersion measure foreground. Therefore,they evidently have an extragalactic origin. We investigate possible contributions to the dispersion measure from host galaxies.
Han, J. L., Xu, Jun.
core +1 more source
Dispersion Measure Variation of Repeating Fast Radio Burst Sources
, 2017 The repeating fast radio burst (FRB) 121102 was recently localized in a dwarf galaxy at a cosmological distance. The dispersion measure (DM) derived for each burst from FRB 121102 so far has not shown significant evolution, even though an apparent ...
Yang, Yuan-Pei, Zhang, Bing
core +1 more source
Model-based asymptotically optimal dispersion measure correction for pulsar timing
, 2014 In order to reach the sensitivity required to detect gravitational waves, pulsar timing array experiments need to mitigate as much noise as possible in timing data. A dominant amount of noise is likely due to variations in the dispersion measure.
Stappers, Benjamin +11 more
core +3 more sources
Calculation of velocity dispersion of the nearby galaxies using different stellar template libraries [PDF]
Serbian Astronomical Journal, 2010 We present the central velocity dispersion measurements of the nearby galaxies from the Sloan Digital Sky Survey (SDSS). Using the sample from the paper by Ho et al. 2009, we have selected 23 galaxies for which we calculate the velocity dispersion.
Lalović Ana
doaj +3 more sources
Phonon Band Structure and Thermal Transport Correlation in a Layered Diatomic Crystal
, 2006 To elucidate the relationship between a crystal's structure, its thermal conductivity, and its phonon dispersion characteristics, an analysis is conducted on layered diatomic Lennard-Jones crystals with various mass ratios.
A. A. Maradudin +10 more
core +1 more source
Clinical Insights Into Hypercalcemia of Malignancy in Childhood
Pediatric Blood &Cancer, EarlyView.ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine +14 more
wiley +1 more source