E-resources
Peer reviewed
-
Sanchez-Ramirez, R; Ellison, S L; Prochaska, J X; Berg, T A M; Lopez, S; D'Odorico, V; Becker, G D; Christensen, L; Cupani, G; Denney, K D; Paris, I; Worseck, G; Gorosabel, J
Monthly notices of the Royal Astronomical Society, 03/2016, Volume: 456, Issue: 4Journal Article
We present a sample of 38 intervening damped Lyman ... (DLA) systems identified towards 100 z > 3.5 quasars, observed during the XQ-100 survey. The XQ-100 DLA sample is combined with major DLA surveys in the literature. The final combined sample consists of 742 DLAs over a redshift range approximately 1.6 < z sub( abs) < 5.0. We develop a novel technique for computing ... as a continuous function of redshift, and we thoroughly assess and quantify the sources of error therein, including fitting errors and incomplete sampling of the high column density end of the column density distribution function. There is a statistically significant redshift evolution in ... ( greater than or equal to 3...) from z ~ 2 to z ~ 5. In order to make a complete assessment of the redshift evolution of ...HI, we combine our high-redshift DLA sample with absorption surveys at intermediate redshift and 21-cm emission line surveys of the local universe. Although ...DLAHI, and hence its redshift evolution, remains uncertain in the intermediate-redshift regime (0.1 < z sub( abs) < 1.6), we find that the combination of high-redshift data with 21-cm surveys of the local universe all yield a statistically significant evolution in ... from z ~ 0 to z ~ 5 ( greater than or equal to 3...). Despite its statistical significance, the magnitude of the evolution is small: a linear regression fit between ... and z yields a typical slope of ~0.17 x 10 super( -3), corresponding to a factor of ~4 decrease in ... between z = 5 and z = 0. (ProQuest: ... denotes formulae/symbols omitted.)
Author
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|
Source: Personal bibliographies
and: SICRIS
The material is available in full text. If you wish to order the material anyway, click the Continue button.