Table · dataset · 2010
CIV column densities in z<2.5 QSOs
Listed in IVOA Registry (Virtual Observatory)
The cosmic evolution of the metal content of the intergalactic medium puts stringent constraints on the properties of galactic outflows and on the nature of UV background.
Description
In this paper, we present a new measure of the redshift evolution of the mass density of CIV, {OMEGA}_CIV_, in the interval 1.5~<z~<4 based on a sample of more than 1500 CIV lines with column densities 10^12^~<N(CIV)~<10^15^cm^-2^. This sample more than doubles the absorption redshift path covered in the range z<2.5 by previous samples.
The result shows a significant increase of {OMEGA}_CIV_ towards the lower redshifts at variance with the previously pictured constant behaviour.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/401/2715 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2010MNRAS.401.2715D ui.adsabs.harvard.edu/abs/2010MNRAS.401.2715D ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/mnras/401/2715 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/mnras/401/2715 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |