2001ApJ...561..815G

Query : 2001ApJ...561..815G

2001ApJ...561..815G - Astrophys. J., 561, 815-822 (2001/November-2)

Small-scale variations of H I spectra from interstellar scintillation.

GWINN C.R.

Abstract (from CDS):

I suggest that radio-wave scattering by the interstellar plasma, in combination with subsonic gradients in the Doppler velocity of interstellar H I, is responsible for the observed small-scale variation in H I absorption spectra of pulsars. Velocity gradients on the order of 0.05-0.3 km.s–1 across 1 AU can produce the observed variations. I suggest observational tests to determine the relative importance of such gradients and AU-scale absorbing cloudlets in producing the spectral variations.

Abstract Copyright: ∼

Journal keyword(s): ISM: Clouds - ISM: Structure - Radio Continuum: General - Scattering - Turbulence

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 ICRF J052109.8+163822 Sy1 05 21 09.88596258 +16 38 22.0515459   19.37 18.84 18.480   ~ 910 1
2 PSR B0540+23 Psr 05 43 09.65 +23 29 06.1     14.40     ~ 278 0
3 PSR B0823+26 Psr 08 26 51.5068 +26 37 21.297           ~ 541 1
4 PSR B0950+08 Psr 09 53 09.31210 +07 55 36.9000           ~ 806 2
5 PSR B1133+16 Psr 11 36 03.09460 +15 51 15.9000           ~ 715 0
6 PSR B1557-50 Psr 16 00 53.0150 -50 44 21.300           ~ 119 0
7 PSR B1737+13 Psr 17 40 07.3455 +13 11 56.690           ~ 191 0
8 PSR B1821+05 Psr 18 23 30.9731 +05 50 24.310           ~ 136 0
9 PSR B1929+10 Psr 19 32 14.0570 +10 59 33.380           ~ 801 0
10 PSR B2016+28 Psr 20 18 03.8999255016 +28 39 54.940329468           ~ 374 0

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