2003ApJ...598L..23S

Query : 2003ApJ...598L..23S

2003ApJ...598L..23S - Astrophys. J., 598, L23-L26 (2003/November-3)

Does tiny-scale atomic structure exist in the interstellar medium?

STANIMIROVIC S., WEISBERG J.M., HEDDEN A., DEVINE K.E. and GREEN J.T.

Abstract (from CDS):

We report on preliminary results from the recent multiepoch neutral hydrogen absorption measurements toward three pulsars, B0823+26, B1133+16, and B2016+28, using the Arecibo telescope. We do not find significant variations in optical depth profiles over periods of 0.3 and 9-10 yr or on spatial scales of 10-20 and 70-85 AU. The large number of nondetections of the tiny-scale atomic structure suggests that the AU-sized structure is not ubiquitous in the interstellar medium and could be quite a rare phenomenon.

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Journal keyword(s): ISM: Clouds - ISM: Structure - Line: Profiles

Simbad objects: 6

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Number of rows : 6
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 B1133+16 Psr 11 36 03.09460 +15 51 15.9000           ~ 715 0
3 PSR B1641-45 Psr 16 44 49.28482 -45 59 09.6360     12.60     ~ 217 0
4 PSR B1737+13 Psr 17 40 07.3455 +13 11 56.690           ~ 191 0
5 PSR B2016+28 Psr 20 18 03.8999255016 +28 39 54.940329468           ~ 374 0
6 NAME Cas A SNR 23 23 26.0 +58 48 41     14.30     ~ 3033 1

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