نتایج جستجو برای: dispersion measure

تعداد نتایج: 405449  

Journal: :Proceedings of the National Academy of Sciences 1926

Journal: :The Astrophysical Journal 2022

We investigate the use of bright single pulses from Crab pulsar to determine separately dispersion measure (DM) for Main Pulse and Interpulse components. develop two approaches using cross correlation functions (CCFs). The first method computes CCF total intensity each 64 frequency channels with a reference channel converts time lag maximum into DM. second between every pair individual pulse ex...

Journal: :Monthly Notices of the Royal Astronomical Society 2021

The dispersion measure (DM) of fast radio bursts (FRBs) provides a unique way to probe ionised baryons in the intergalactic medium (IGM). Cosmological models with different parameters lead DM-redshift ($\mathrm{DM}-z$) relations. Additionally, over/under-dense regions IGM and circumgalactic intervening galaxies scatter around mean $\mathrm{DM}-z$ We have used Evolution Assembly GaLaxies their E...

2005
Magnus Sahlgren Jussi Karlgren

This paper introduces a measure of corpus homogeneity that indicates the amount of topical dispersion in a corpus. The measure is based on the density of neighborhoods in semantic word spaces. We evaluate the measure by comparing the results for five different corpora. Our initial results indicate that the proposed density measure can indeed identify differences in topical dispersion.

Journal: :The Journal of the Acoustical Society of America 2012

Journal: :Monthly Notices of the Royal Astronomical Society 2014

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