<?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>A catalog of recent supernovae.</title>
	<altname type="ADC">J/ApJS/92/219</altname>
		<altname type="CDS">J/ApJS/92/219</altname>
		<altname type="brief">Catalog of recent supernovae</altname>
	<reference>
		<source>
<journal>
	<title>A catalog of recent supernovae.</title>
	<author>
			<initial>S</initial>
			<lastName>Van den Bergh</lastName></author>
	<name>Astrophys. J. Suppl. Ser.</name>
	<volume>92</volume>
	<pageno>219</pageno>
		<date>
			<year>1994</year></date>
	<bibcode>1994ApJS...92..219V</bibcode></journal></source>
	<related>
			<holding role="similar">II/133 : Photoelectric UBV observations of supernovae<xlink:simple href="II/133"/></holding>
			<holding role="similar">II/159 : Asiago Supernova Catalogue 1988<xlink:simple href="II/159"/></holding>
			<holding role="similar">II/189 : A catalogue of magnitude observations of type I supernovae<xlink:simple href="II/189"/></holding>
			<holding role="similar">II/201 : Sternberg SN Catalogue, 1994Sep.<xlink:simple href="II/201"/></holding>
			<holding role="similar">II/205 : GCVS, Vol. V.: Extragalactic Variable Stars<xlink:simple href="II/205"/></holding>
			  Gomez G. &amp; Lopez 1993, AJ 106, 245 (=1993AJ....106..245G)
  Lauberts, A., 1982 The ESO/Uppsala Survey of the ESO (B) Atlas
   (Garching: European Southern Observatory) (Catalogue&lt;VII/34B>)
  Vorontsov-Velyaminov, B.A., et al. Morphological Catalogue of Galaxies
   I-IV MCG (Moscow: Moscow University) 1962-1974 (Catalogue&lt;VII/62A>)
  Pennypacker et al. 1992, IAUC 5652 (=1992IAUC.5652....1P)
  Sandage, A., &amp; Tammann, G.A. 1981 A Revised Shapley-Ames Catalog at
    Bright Galaxies (Washington: Carnegie Institution) (Catalogue&lt;VII/51>)
  Schmidt B.P., et al. 1993 AJ 105, 2236 (=1993AJ....105.2236S)
  de Vaucouleurs, G., de Vaucouleurs, A., Corwin, H.G., Buta, R.J.,
    Paturel, G., &amp; Fouque, P. 1991 Third Reference Catalogue of
    Bright Galaxies (RC3) (Berlin: Springer) (Catalogue&lt;VII/155>)</related></reference>
	<keywords parentListURL="http://messier.gsfc.nasa.gov/xml/keywordlists/adc_keywords.html">
			<keyword xlink:href="Supernovae.html">Supernovae</keyword></keywords>
	<keywords parentListURL="http://messier.gsfc.nasa.gov/xml/keywordlists/apj_keywords.html">
			<keyword xlink:href="supernovae_general.html">supernovae: general</keyword></keywords>
	<descriptions>
				<description>
				<para>
    A listing is given of all supernovae discovered between 1989 January 1
    and 1993 April  1.  The  data  show  no  evidence  for  a  significant
    dependence of the discovery probability of supernovae on parent galaxy
    inclination  to the line of sight.  If no inclination corrections need
    to be applied, then the supernova rates in spirals are only about half
    as large  as  previously  believed.  The  mean  linear  separation  of
    supernovae  of type II (SNe II) from the center of their parent galaxy
    increases with increasing distance  (Shaw  effect).  The  Shaw  effect
    appears less  evident, or  absent, for  (more luminous)  supernovae of
    type Ia.  The  data  are  consistent  with,  but  do  not  prove,  the
    hypothesis that (presumably  reddened) SNe  II are  more likely  to be
    discovered in the red than in the blue. Due to intensive surveillance,
    most bright SNe Ia tend  to  be  found  before  maximum,  whereas  the
    majority of faint SNe Ia are discovered after maximum light.</para></description>
                        <details/></descriptions>
	<tableHead>
		<tableLinks>
				<tableLink xlink:href="table1">
	<title>Data on recent supernova</title></tableLink></tableLinks>
	<fields>
		<field>
			<name>SN</name>
			<definition>Supernova name</definition>
			<units>---</units></field>
		<field>
			<name>n_SN</name>
			<definition>A 'N' indicates that it is not a supernova</definition>
			<units>---</units></field>
		<field>
			<name>Gal</name>
			<definition>Parent galaxy name
	<footnote footnoteId="???"><para>number=1</para>
			<para>N = NGC, I = IC, U = UGC.
     The letters E and M indicate that the galaxy is listed in the
     ESO (Lauberts 1982) or MCG (Vorontsov-Velyaminov et al. 1962-1974)
     Catalogs, respectively</para></footnote></definition>
			<units>---</units></field>
		<field>
			<name>MType</name>
			<definition>Parent galaxy classification types
	<footnote footnoteId="???"><para>number=2</para>
			<para>Galaxy classification types were, in order of preference, drawn from
     (a) Sandage and Tammann (1981) (Catalogue &lt;VII/51>)
     (b) an unpublished catalog of DDO classifications by the present author
     (c) de Vaucouleurs et al. (1991) (RC3, Catalogue &lt;VII/155>)
     (d) Lauberts (1982) (Catalogue &lt;VII/34B>)</para></footnote></definition>
			<units>---</units></field>
		<field>
			<name>RAh</name>
			<definition>Right ascension 1950</definition>
			<units>h</units></field>
		<field>
			<name>RAm</name>
			<definition>Right ascension 1950</definition>
			<units>min</units></field>
		<field>
			<name>RAs</name>
			<definition>Right ascension 1950</definition>
			<units>s</units></field>
		<field>
			<name>DE-</name>
			<definition>Declination sign</definition>
			<units>---</units></field>
		<field>
			<name>DEd</name>
			<definition>Declination 1950</definition>
			<units>deg</units></field>
		<field>
			<name>DEm</name>
			<definition>Declination 1950</definition>
			<units>arcmin</units></field>
		<field>
			<name>DEs</name>
			<definition>Declination 1950</definition>
			<units>arcsec</units></field>
		<field>
			<name>RV</name>
			<definition>Radial velocity
	<footnote footnoteId="???"><para>number=3</para>
			<para>Galaxy radial velocity, preferentially drawn from the optical
     heliocentric listing of de Vaucouleurs et al. (1991)</para></footnote></definition>
			<units>km/s</units></field>
		<field>
			<name>Mag</name>
			<definition>Discovered magnitude</definition>
			<units>mag</units></field>
		<field>
			<name>n_Mag</name>
			<definition>Color of discovered magnitude
	<footnote footnoteId="???"><para>number=4</para>
			<para>Both mpg, blue and B are called B, MJ is designated J, mpv and
     V are both indicated by V, r and R are both called as R. For a few
     supernovae I or K discovery magnitudes are listed</para></footnote></definition>
			<units>---</units></field>
		<field>
			<name>IAUC</name>
			<definition>Number of IAU Circular giving discovery
                                     information</definition>
			<units>---</units></field>
		<field>
			<name>Offsets</name>
			<definition>Offsets from nucleus of galaxy</definition>
			<units>---</units></field>
		<field>
			<name>Type</name>
			<definition>Supernova type</definition>
			<units>---</units></field>
		<field>
			<name>IAUC(SN)</name>
			<definition>Number of IAU Circular from which SN
                                     type was drawn</definition>
			<units>---</units></field>
		<field>
			<name>Notes</name>
			<definition>Remarks on some individual supernovae
	<footnote footnoteId="???"><para>number=5</para>
			<para>individual notes:
      1 Offset from nucleus given as 25" NE in IAU Circular 4758.
      2 Offsets provided by Tsvetkov et al.
      3 Offset from nucleus given as 5.8" SW in IAUC 5046.
      4 According to IAUC 4959 this is a compact HII region, not a supernova
      5 Type II-P supernova according to Schmidt et al. (1993).
      6 IAUC 5111 gives type Ib, whereas IAUC 5129 assigns a type Ic.
      7 Located between two galaxies. Quoted position is that of the
        supernova.
      8 Not a supernova according to IAUC 5270.
      9 Quasar according to IAUC 5328.
     10 The "anonymous" galaxy in IAUC 5356 is, in fact, MCG 4-6-29.
     11 It is not clear whether the position quoted in IAUC 5446 refers to
         the galaxy or to the supernovae.
     12 According to IAUC 5468 possibly a subluminous SNIa like SN1991bg.
     13 Foreground M star according to IAUC 5528.
     14 Occurred 4"N of SN 1992R (Gomez &amp; Lopez 1993).
     15 Supernova located 45" from nucleus.
     16 On the basis of photometry Pennypacker et al. (IAUC 5652) claim
         that this supernova was probably of type Ia.
</para></footnote></definition>
			<units>---</units></field></fields></tableHead>
	<tableHead>
		<tableLinks>
				<tableLink xlink:href="table2">
	<title>Ages of supernova at discovery</title></tableLink></tableLinks>
	<fields>
		<field>
			<name>SN</name>
			<definition>Supernova name</definition>
			<units>---</units></field>
		<field>
			<name>Gal</name>
			<definition>Parent galaxy name</definition>
			<units>---</units></field>
		<field>
			<name>Type</name>
			<definition>Type of the supernova</definition>
			<units>---</units></field>
		<field>
			<name>Age</name>
			<definition>Information on the spectral age</definition>
			<units>---</units></field>
		<field>
			<name>l_T</name>
			<definition>Limit flag on T</definition>
			<units>---</units></field>
		<field>
			<name>T</name>
			<definition>Evolutionary age at the time of the discovery</definition>
			<units>d</units></field>
		<field>
			<name>u_T</name>
			<definition>Uncertainty flag on T</definition>
			<units>---</units></field>
		<field>
			<name>e_T</name>
			<definition>rms uncertainty on T</definition>
			<units>d</units></field></fields></tableHead>
	
	<history>
		<ingest>
	
			<creator>
				<lastName>Patricia Bauer</lastName>
				<affiliation>CDS</affiliation></creator>
	<date>
		<year>1996</year><month>May</month><day>14</day></date><acknowledgement>Sidney van den Bergh &lt;vdb@dao.nrc.ca></acknowledgement></ingest>
		</history>
	<identifier>J_ApJS_92_219.xml</identifier></dataset>
