1999MNRAS.309..355V

Query : 1999MNRAS.309..355V

1999MNRAS.309..355V - Mon. Not. R. Astron. Soc., 309, 355-359 (1999/October-3)

Lyman alpha systems within hot galactic haloes.

VIEGAS S.M., FRIACA A.C.S. and GRUENWALD R.

Abstract (from CDS):

A hot-gas halo is predicted by chemodynamical models during the early evolution of spheroidal galaxies. Cold condensations, arising from thermal instabilities in the hot gas, are expected to be embedded in the hot halo. In the early phases of the galaxy (t≲1Gyr), a strong X-ray and EUV emission is produced by the extended hot-gas distribution, ionizing the cold clouds. This self-irradiating two-phase halo model successfully explains several line ratios observed in QSO absorption-line systems, and reproduces the temperature distribution of Lyman α clouds.

Abstract Copyright: 1999, Royal Astronomical Society

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: formation - intergalactic medium - quasars: absorption lines - cosmology: observations - X-rays: galaxies

Simbad objects: 4

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Number of rows : 4
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 6C 001403+811827 BLL 00 17 08.47489694 +81 35 08.1365094   17.60 16.52 15.95   ~ 405 1
2 QSO B1422+2309 BLL 14 24 38.0938 +22 56 00.587   16.77 15.84 14.79   ~ 464 1
3 [PBW92] 1422+231 gLS 14 24 38.09400 +22 56 00.5900   16.77 15.84 14.79   ~ 359 0
4 HS 1700+6416 QSO 17 01 00.6194059368 +64 12 09.118892376   16.39 16.17     ~ 382 0

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