2018MNRAS.480.4199F

Query : 2018MNRAS.480.4199F

2018MNRAS.480.4199F - Mon. Not. R. Astron. Soc., 480, 4199-4210 (2018/November-1)

Revealing compact structures of interstellar plasma in the Galaxy with RadioAstron.

FADEEV E.N., ANDRIANOV A.S., BURGIN M.S., POPOV M.V., RUDNITSKIY A.G., SHISHOV V.I., SMIRNOVA T.V. and ZUGA V.A.

Abstract (from CDS):

The aim of our work was to study the spatialstructure of inhomogeneities in the interstellar plasma in the directions of five pulsars: B0823+26, B0834+06, B1237+25, B1929+10 and B2016+28. Observations of these pulsars were made with the RadioAstron space-ground radio interferometer at 324 MHz. We measured the angular size of the scattering discs and found it to be in the range 0.63-2.1 mas. We determined the position of scattering screens on the line of sight. Independent estimates of the distances to the screens were made from the curvature of parabolic arcs revealed in the secondary spectra of four pulsars. Based on the results, we came to the conclusion that scattering is produced mainly by compact plasma layers and the uniform model of inhomogeneity distribution along the line of sight is not applicable.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): scattering - techniques: high angular resolution - pulsars: general - ISM: general - radio continuum: ISM

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 PSR B0823+26 Psr 08 26 51.5068 +26 37 21.297           ~ 541 1
2 PSR B0834+06 Psr 08 37 05.64620 +06 10 15.8700           ~ 472 0
3 PSR B1237+25 Psr 12 39 40.386 +24 53 49.87           ~ 497 1
4 PSR B1641-45 Psr 16 44 49.28482 -45 59 09.6360     12.60     ~ 217 0
5 AJG 54 HII 16 45 18.0 -46 09 11           ~ 32 1
6 RCW 142 HII 17 50 15.3 -28 54 03           ~ 64 0
7 PSR B1749-28 Psr 17 52 58.70700 -28 06 36.0000           ~ 277 1
8 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 801 0
9 PSR B1933+16 Psr 19 35 47.7011639352 +16 16 40.034899524           ~ 328 1
10 PSR B2016+28 Psr 20 18 03.8999255016 +28 39 54.940329468           ~ 374 0

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