Properties of a Chemically Enriched Lya Absorption System at z=0.167 and Implications for the Total Baryons in Extended Gaseous Envelopes Around Galaxies

Hsiao-Wen Chen (1); Jason X. Prochaska (1); Kenneth M. Lanzetta (2) ((1) Carnegie Observatories; (2) SUNY at Stony Brook)

Properties of a Chemically Enriched Lya Absorption System at z=0.167 and Implications for the Total Baryons in Extended Gaseous Envelopes Around Galaxies

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

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/0108068 v1 pith:USUDEPOY submitted 2001-08-03 astro-ph

Hsiao-Wen Chen (1) , Jason X. Prochaska (1) , Kenneth M. Lanzetta (2) ((1) Carnegie Observatories; (2) SUNY at Stony Brook) This is my paper · ORCID

classification astro-ph

keywords baryonsenvelopesextendedgaseoustotalaroundgalaxiesmodel

verification ladder T0 review T1 audit T2 compute T3 formal

0 comments

read the original abstract

We present a detailed analysis of the chemical abundances, ionization state, and origin of a partial Lyman limit system (N(HI) ~ 10^{16} cm^{-2}) at low redshift (z=0.167 towards PKS0405-1219). We also present the first estimate of the total baryons in extended gaseous envelopes around galaxies based on a simple photoionization model for the Lya absorbers. We find that extended gaseous envelopes can explain between 5--20% of the total baryons predicted by the big bang nucleosynthesis model.

Discussion (0). Continue with ORCID to comment.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

DIISC -- VI (COS-DIISC): UV Metal Absorption Relative to the H I disk of Galaxies
astro-ph.GA 2025-02 conditional novelty 6.0 of 10

Metal-line absorbers around low-redshift galaxies are better traced by distance from the galaxy's H I disk than by the traditionally used virial radius, and the absorbing clouds are typically smaller than 2 kpc.

Pith tools