Large-scale HI in nearby radio galaxies: segregation in neutral gas content with radio source size

2); 3); B.H.C. Emonts (1; C.N. Tadhunter (5) ((1) Kapteyn Astronomical Inst.; Dwingeloo; Groningen; G. van Moorsel (4); J.M. van der Hulst (1); New York; NL (2) Columbia Univ.

REVIEW

Large-scale HI in nearby radio galaxies: segregation in neutral gas content with radio source size

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv astro-ph/0701438 v1 submitted 2007-01-16 astro-ph

B.H.C. Emonts (1 , 2) , R. Morganti (1 , 3) , T.A. Oosterloo (1 , J.M. van der Hulst (1) , G. van Moorsel (4) , C.N. Tadhunter (5) ((1) Kapteyn Astronomical Inst.

show 9 more authors

Groningen NL (2) Columbia Univ. New York USA (3) ASTRON Dwingeloo NL (4) NRAO Socorro USA (5) Univ. of Sheffield UK)

This is my paper

classification astro-ph

keywords radiogalaxiesamountsextendedlarge-scalenearbyneutralsegregation

0 comments

read the original abstract

We present results of a study of neutral hydrogen (HI) in a complete sample of nearby non-cluster radio galaxies. We find that radio galaxies with large amounts of extended HI (M_HI >= 10^9 M_solar) all have a compact radio source. The host galaxies of the more extended radio sources, all of Fanaroff & Riley type-I, do not contain these amounts of HI. We discuss several possible explanations for this segregation. The large-scale HI is mainly distributed in disk- and ring-like structures with sizes up to 190 kpc and masses up to 2 x 10^10 M_solar. The formation of these structures could be related to past merger events, although in some cases it may also be consistent with a cold-accretion scenario.

Discussion (0). Sign in to comment.

Pith tools