2005A&A...436..493L

Query : 2005A&A...436..493L

2005A&A...436..493L - Astronomy and Astrophysics, volume 436, 493-501 (2005/6-3)

HST/STIS low dispersion spectroscopy of three Compact Steep Spectrum sources. Evidence for jet-cloud interaction.

LABIANO A., O'DEA C.P., GELDERMAN R., DE VRIES W.H., AXON D.J., BARTHEL P.D., BAUM S.A., CAPETTI A., FANTI R., KOEKEMOER A.M., MORGANTI R. and TADHUNTER C.N.

Abstract (from CDS):

We present Hubble Space Telescope Imaging Spectrograph long-slit spectroscopy of the emission line nebulae in the compact steep spectrum radio sources 3C 67, 3C 277.1, and 3C 303.1. We derive BPT (Baldwin et al., 1981PASP...93....5B) diagnostic emission line ratios for the nebulae which are consistent with a mix of shock excitation and photo-ionization in the extended gas. In addition, line ratios indicative of lower ionization gas are found to be associated with higher gas velocities. The results are consistent with a picture in which these galaxy scale radio sources interact with dense clouds in the interstellar medium of the host galaxies, shocking the clouds thereby ionizing and accelerating them.

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Journal keyword(s): galaxies: active - galaxies: individual: 3C 67 - galaxies: individual: 3C 277.1 - galaxies: individual: 3C 303.1 - galaxies: quasars: emission lines

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 7C 022118.10+273638.00 Sy1 02 24 12.2865158736 +27 50 11.538285648   19.502 18 18.263   ~ 209 1
2 2E 2879 Sy1 12 52 26.3561235816 +56 34 19.573734864   18.42 18.11 17.660   ~ 287 2
3 8C 1443+773 Sy2 14 43 14.8 +77 07 29   19   18.730   ~ 146 1

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