<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE dataset SYSTEM "http://tarantella.gsfc.nasa.gov/xml/dataset_048.dtd">
<dataset subject="astronomy" xmlns:xlink="http://www.w3.org/XML/XLink/0.9">
	<title>Search for emission-line galaxies towards nearby voids. Observational data</title>
	<altname type="ADC">J/A+AS/116/43</altname>
		<altname type="CDS">J/A+AS/116/43</altname>
		<altname type="brief">Emission-line galaxies nearby voids.</altname>
	<reference>
		<source>
<journal>
	<title>Search for emission-line galaxies towards nearby voids. Observational data</title>
	<author>
			<initial>C</initial>
			<initial>C</initial>
			<lastName>Popescu</lastName></author>
	<author>
			<initial>U</initial>
			<lastName>Hopp</lastName></author>
	<author>
			<initial>H</initial>
			<initial>J</initial>
			<lastName>Hagen</lastName></author>
	<author>
			<initial>H</initial>
			<lastName>Elsaesser</lastName></author>
	<name>Astron. Astrophys. Suppl. Ser.</name>
	<volume>116</volume>
	<pageno>43</pageno>
		<date>
			<year>1996</year></date>
	<bibcode>1996A&amp;AS..116...43P</bibcode></journal></source></reference>
	<keywords parentListURL="http://messier.gsfc.nasa.gov/xml/keywordlists/adc_keywords.html">
			<keyword xlink:href="Galaxy_catalogs.html">Galaxy catalogs</keyword>
			<keyword xlink:href="Redshifts.html">Redshifts</keyword></keywords>
	<keywords parentListURL="http://messier.gsfc.nasa.gov/xml/keywordlists/apj_keywords.html">
			<keyword xlink:href="galaxies_distances_and_redshifts.html">galaxies: distances and redshifts</keyword>
			<keyword xlink:href="galaxies_irregular.html">galaxies: irregular</keyword>
			<keyword xlink:href="large-scale_structure_of_universe.html">large-scale structure of universe</keyword>
			<keyword xlink:href="surveys.html">surveys</keyword></keywords>
	<descriptions>
				<description>
				<para>
    We present the observational results of our search for emission-line
    galaxies (ELG) towards nearby voids. In order to find ELG, we started
    a survey using the IIIa-J objective prism plates from the Hamburg QSO
    Survey. The plates are digitized and an automatic procedure was
    applied to select the candidates. Digitized direct plates were used to
    determine coordinates and to reject overlaps between spectra. The
    accuracy of the coordinates is +/-2". A total area of 1248deg^2^ was
    scanned, distributed in four different regions. All the selected
    objects were observed with follow-up spectroscopy. We have obtained a
    final sample of 203 objects, of which 196 are emission-line galaxies,
    four are galaxies with absorption lines and three are QSOs. Almost
    half of our objects are newly discovered ones and three quarters of
    the given redshifts are new. Our sample contains mainly high
    ionization galaxies and is less sensitive in the detection of
    low-ionization objects. The apparent magnitudes, as derived from the
    objective prism plates, range between 15.0&lt;=B&lt;=19.5. The sample is
    dominated by nearby galaxies, with a peak in the redshift distribution
    at cz=4500 km/s.</para></description>
                        <details/></descriptions>
	<tableHead>
		<tableLinks>
				<tableLink xlink:href="table4">
	<title>Observational data</title></tableLink></tableLinks>
	<fields>
		<field>
			<name>HS</name>
			<definition>Name of the objects
	<footnote footnoteId="???"><para>number=1</para>
			<para>The name is built with the prefix HS (from Hamburg Survey), followed
          by the first four digits of the 1950.0 right ascension and declination</para></footnote></definition>
			<units>---</units></field>
		<field>
			<name>Other</name>
			<definition>Other name</definition>
			<units>---</units></field>
		<field>
			<name>RAh</name>
			<definition>Right ascension 1950.0</definition>
			<units>h</units></field>
		<field>
			<name>RAm</name>
			<definition>Right ascension 1950.0</definition>
			<units>min</units></field>
		<field>
			<name>RAs</name>
			<definition>Right ascension 1950.0</definition>
			<units>s</units></field>
		<field>
			<name>DE-</name>
			<definition>Declination sign</definition>
			<units>---</units></field>
		<field>
			<name>DEd</name>
			<definition>Declination 1950.0</definition>
			<units>deg</units></field>
		<field>
			<name>DEm</name>
			<definition>Declination 1950.0</definition>
			<units>arcmin</units></field>
		<field>
			<name>DEs</name>
			<definition>Declination 1950.0</definition>
			<units>arcsec</units></field>
		<field>
			<name>z</name>
			<definition>Heliocentric redshift</definition>
			<units>---</units></field>
		<field>
			<name>Bmag</name>
			<definition>B magnitude</definition>
			<units>mag</units></field>
		<field>
			<name>Bmag2</name>
			<definition>magnitude form literature, when available</definition>
			<units>mag</units></field>
		<field>
			<name>S</name>
			<definition>Selection criteria
	<footnote footnoteId="???"><para>number=2</para>
			<para>Selection used to select the candidates from the objective prism
           spectra: E for emission candidate (first priority), and
                    B for blue candidate (second priority)</para></footnote></definition>
			<units>---</units></field>
		<field>
			<name>Ref</name>
			<definition>Number of the run or code of the reference
	<footnote footnoteId="???"><para>number=3</para>
			<para>Number of the run in which the object was observed (with the prefix o
           - from observed) or the code of the reference, when the object had
           available redshift (with the prefix l - from literature).
           The numbers of the observing runs are the same as listed in Table 2
           (see Paper).
 Codes for the references:
   A      Abell galaxy  1.
   CG     Case Galaxy 53-57, 62-65, 71
   CGCG   Catalogue of Galaxies and of Cluster of Galaxies 1968, 93.
          (Catalog &lt;VII/49>)
   CGPG   Catalogue of Selected Compact Galaxies and of Post Eruptive Galaxies
           1971, 92.
   DDO    David Dunlap Observatory catalog, van den Bergh 1966, 3.
   dKM92  de Grijp, Keel, Miley et. al. 1992, 12.
   G93    Garcia 1993, 11.
   H      Hard X-Ray Sources 42.
   IRAS   Infrared Astronomical Satellite Catalogs 1988. The Point Source
           Catalog 15. (Catalog &lt;II/125>)
   IRAS F Infrared Astronomical Satellite Catalogs 1990. The Faint Source
           Catalog 46. (Catalog &lt;II/156>)
   KUG    Kiso Survey for UV Excess Galaxies  73-76.
   LGG    Lyon Group of Galaxies Catalog 11.
   MCG    Morphological Catalogue of Galaxies 1962, 82-86.
   MRK    Markarian Galaxy 25-40.
   NPM    Lick Northern Proper Motion Program 16.
   OA-OZ  Ohio Source Catalog, 1415 MHz 17, 47, 18, 66, 7, 10, 8, 5, 9, 60
   PC     Palomar Transit Grism Survey 67.
   RC2    The Second Reference Catalogue 1976, 79.
   SMB88  Slezak, Mars, Bijaoi et. al. 1988, 69.
   SBS    Second Byurakan Spectral Sky Survey 41, 70.
   SP82   Sanduleak and Pesch 1982, 61.
   UCM    Universidad Complutense de Madrid 58, 89, 90
   UGC    Uppsala General Catalogue of Galaxies 1973, 48. (Catalog &lt;VII/26>)
   UM     University of Michigan  20-24.
   VV     Vorontsov-Velyaminov 1959, 1977, Atlas and Catalog of Interacting
           Galaxies 81.
   WAS    Wasilewski 1983, 87.
   XRS    Second Catalogue of X-ray Sources 2.
   Zw     Zwicky Compact Galaxy 91.</para></footnote></definition>
			<units>---</units></field>
		<field>
			<name>Rem</name>
			<definition>Remarks
	<footnote footnoteId="???"><para>number=4</para>
			<para>*  -galaxies with only one line detection
         **  -galaxies with only one line detection but twice observed
</para></footnote></definition>
			<units>---</units></field>
		<field>
			<name>Names</name>
			<definition>Other names</definition>
			<units>---</units></field></fields></tableHead>
	
			<textFile xlink:href="table4.tex"><name>table4.tex</name><description><para>LaTeX version of table4</para></description></textFile>
	<history>
		<ingest>
	
			<creator>
				<lastName>Patricia Bauer</lastName>
				<affiliation>CDS</affiliation></creator>
	<date>
		<year>1996</year><month>Jan</month><day>22</day></date></ingest>
		</history>
	<identifier>J_A+AS_116_43.xml</identifier></dataset>
