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Introduction next up previous
Next: Spectral observations and data Up: The Hamburg/SAO Survey for Previous: The Hamburg/SAO Survey for

Introduction

The studies of various types of galaxies with strong current star formation (SF) are among the most popular in extragalactic astronomy. For many purposes in this work it is very important to deal with large enough and well selected samples of such objects. In particular, the authors are involved in studies of SF bursts in low-mass galaxies (H II-galaxies, or blue compact galaxies - BCGs), and thus are interested in dealing with large samples of BCGs. There are three such large BCG/H II galaxy samples on the northern sky, each covering about 1000 square degrees. The first one is situated in the zone of the Second Byurakan Survey (Markarian et al. [1983], Stepanian [1994]) ( $\alpha = 7^h 40^m - 17^h 20^m$, $\delta = +49\degr - +61\degr$). It is described partly by Izotov et al. ([1993a], [1993b]), Thuan et al. ([1994]) and Pustilnik et al. ([1995]). The second one is under completion (Salzer et al. [1995], Ugryumov [1997], Ugryumov et al. [1998]) and is situated in a region, which is a part of the Case objective prism survey ( $\alpha = 8^h 00^m - 16^h 20^m$, $\delta = +29\degr - +38\degr$) (Pesch et al. [1995]). The third one, the Heidelberg void survey (Popescu et al. [1996], [1998]), is located in two separated regions. The new Hamburg/SAO Survey for Emission-Line Galaxies is intended to cover the gap between the regions of the SBS and the Case survey and to create a new BCG/H II galaxy sample in that region. It covers the region between 7h 20m to 17h 40m in right ascension and between $+35\degr$ to $+50\degr$ in declination. This is the second article of the series devoted to follow-up spectroscopy results of preselected ELG Hamburg/SAO candidates. The basic ideas of the Hamburg/SAO survey and the selection methods of ELG candidates are described along with the first results of follow-up spectroscopy in Ugryumov et al. ([1999]) (Paper I).

This article is organized as follows. In section 2 we give the details of the 6m telescope spectroscopic observations and of the data reduction. In section 3 the results of the observations are presented in several tables. Along with general parameters for emission-line galaxies and several quasars the parameters of the strongest emission lines are summarized in a separate table. The information on several non emission-line galaxies is presented as well. In section 4 we briefly discuss the new data and summarize the current state of the Hamburg/SAO survey. Throughout this paper a Hubble constant H0 = 75 km$\,$s-1 Mpc-1 is used.


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Next: Spectral observations and data Up: The Hamburg/SAO Survey for Previous: The Hamburg/SAO Survey for
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