VizieR Online Data Catalog: SiIV and NV absorption line SDSS quasar systems (Chen+, 2019)
Abstract
Using Data Release 14 (DR14; Paris+ 2018A&A...613A..51P) of the SDSS, Chen+ (2018, J/ApJS/239/23) selected the quasars with two- to six-epoch observations to measure the CIV absorption lines with FWHMs <1200km/s in the vicinity of CIV emission lines and obtained 647 variable CIV absorption line systems from the SDSS spectra of 553 quasars. These SDSS spectra of the 553 quasars are utilized to measure the SiIVλ1393,1402 or NVλ1238,1242 absorption lines.
(3 data files).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- November 2019
- DOI:
- 10.26093/cds/vizier.22430002
- Bibcode:
- 2019yCat..22430002C
- Keywords:
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- Equivalent widths;
- QSOs;
- Redshifts;
- Spectra: optical