SEARCH FOR EMISSION-LINE GALAXIES TOWARDS NEARBY VOIDS - LIST 2

Citation
Cc. Popescu et al., SEARCH FOR EMISSION-LINE GALAXIES TOWARDS NEARBY VOIDS - LIST 2, Astronomy & astrophysics. Supplement series (Print), 133(1), 1998, pp. 13-24
Citations number
10
Categorie Soggetti
Astronomy & Astrophysics
ISSN journal
03650138
Volume
133
Issue
1
Year of publication
1998
Pages
13 - 24
Database
ISI
SICI code
0365-0138(1998)133:1<13:SFEGTN>2.0.ZU;2-S
Abstract
We present a second list of emission-line galaxies (ELGs) discovered d uring our survey of nearby voids. The project aims to answer the quest ion of whether the giant galaxies are fair tracers of the large scale structure and whether the voids are really empty. This pa per is the t hird of a series of papers dedicated to this project. The survey was b ased on a sample selected from the HQS (Hamburg Quasar Survey) - IIIa- J digitised objective prism plates and the main selection criteria was the presence of emission-lines, mainly of the [OIII] lambda 5007 line . Positions, heliocentric redshifts, detected emission lines and findi ng charts are provided for ELGs in a region North of the Coma Superclu ster, 30.5 degrees < delta < 45.5 degrees, centred around 13.5(h). Mos t of the galaxies presented here are from the extreme faint candidates , close to the detection limit of the photographic plates. Brighter ga laxies detected among the candidates of the same region were discussed in Popescu et al. (1996) (Paper I). A few redshifts of other emission line galaxies observed since the publication of Paper I are also incl uded; in total, we present new redshifts for a total of 47 galaxies.