Dispersion measure of Milky Way and MC pulsars

A number of recent studies indicates a significant amount of ionized gas in a form of the hot gas halo around the Milky Way. The halo extends over the region of 100 kpc and may be acountable for the missing baryon mass. In this paper we calculate the contribution of the proposed halo to the dispersion measure (DM) of the pulsars. The Navarro, Frenk, and White (NFW), Maller and Bullock (MB), and Feldmann, Hooper, and Gnedin (FHG) density distributions are considered for the gas halo. The data set includes pulsars with the distance known independently from the DM, e.g., pulsars in globular clusters, LMC, SMC and pulsars with known parallax. The results exclude the NFW distribution for the hot gas, while the more realisticMB and FHG models are compatible with the observed dispersion measure.

Cone search capability for table J/PAZh/42/200/table1 (List of Milky Way pulsars with parallaxes)

Cone search capability for table J/PAZh/42/200/table3 (List of LargeMagellanic Cloud and Small Magellanic Cloud pulsars)

Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/PAZh/42/200
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/PAZh/42/200
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PAZh/42/200
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/PAZh/42/200
Creator Zhezher Ya.V.; Nugaev E.Ya.; Rubtsov G.I.
Publisher CDS
Publication Year 2016
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Resource Type Dataset; AstroObjects
Discipline Astrophysical Processes; Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy