ADC/CDS Standard Document for Catalog:/external/combined/E5004/
ADC/CDS Standard Document for Catalog:
E/V/4 Catalog and Atlas of Cataclysmic Variables On-line (Downes+, 2001)
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A Catalog and Atlas of Cataclysmic Variables - On-line Version
Downes R.A., Webbink R.F., Shara M.M., Ritter H., Kolb U., Duerbeck H.W.
<Publ. Astron. Soc. Pac. 113, 764 (2001)>
=2001PASP..113..764D
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ADC_Keywords: Atlases; Stars, variable; External catalog
Location: http://icarus.stsci.edu/~downes/cvcat/
Abstract:
We have been collecting the numerous references associated with a particular
class of variable stars --- the cataclysmic variables (CVs) --- with the
goal of producing an improved catalog and atlas for the cataclysmic
variables. Duerbeck (1987, Sp. Sci. Rev., 45, 1) has provided just such an
improved catalog for novae, but that catalog does not include the novalike
variables or the dwarf novae. We did produce such a catalog containing all
types of CVs (Downes and Shara 1993, PASP, 105, 127; Downes Webbink, and
Shara 1997, PASP, 109, 345; hereafter DWS), and this represents an updated,
"living" version of our catalog, containing additional/revised information
on objects in the second edition, as well as information on objects found
(or their reference uncovered) since DWS. The catalog includes all objects
which, to our knowledge, have been classified as a CV at some point in time;
those which are no longer thought to be CVs are given the type NON-CV (see
below).
Description:
Revisions to the catalog -
o Period information
We have included orbital periods for those systems which appear in the
latest catalog of Ritter and Kolb (1998, A&A Supp., 129, 83); we will
continue to include values provided by those authors on a ~6 month
basis.
o Novae coordinates and charts
We have included, when possible, coordinates for novae in the Guide Star
reference frame. We also include finding charts for these objects.
o HST and ground-based CCD charts
For crowded fields, or objects that are too faint for the DSS, we
utilize HST or ground-based CCD images for the finding charts.
The Catalog -
A description of the fields is as follows:
GCVS NAME
the name of the object in the General Catalogue of Variable Stars and
subsequent Namelists (67th, Kholopov et al. 1985, IBVS 2681; 68th,
Kholopov et al. 1987, IBVS 3058; 69th, Kholopov et al. 1989, IBVS 3323;
70th, Kazarovets and Samus 1990, IBVS 3530; 71st, Kazarovets, Samus, and
Goranskij 1993, IBVS 3840; 72nd, Kazarovets and Samus 1995, IBVS 4140;
73rd, Kazarovets, E.V. and Samus, N.N. 1997, IBVS 4471; 74th,
Kazarovets, A.V., Samus, N.N., Durlevich, O.V., Antipin, S.V., Frolov,
M.S., Kireeva, N.N., and Pastukhova, E.N. 1999, IBVS 4659 75th,
Kazarovets, E.V., Samus, N.N., and Durlevich, O.V. 2000, IBVS 4870). For
those objects without variable star designations, we list the
constellation name only (which were derived from Roman (1987, PASP, 99.
695)).
Since some constellations contain more than one object without a GCVS
designation, and in previous version, we included a number (a strictly
provisional designation) after the constellation name. In this revised
form of the catalog, such ad hoc numbering is no longer required.
However, for ease of comparision with previous versions, we will
maintain this type of designation for all objects that had it.
COORDINATES
whenever possible, the J2000 coordinates of the objects as measured in
the Space Telescope Guide Star reference frame. The right ascension is
given to the nearest 0.01s, while the declination is given to the
nearest 0.1s; for objects that are very faint or not visible, the
coordinates are given to a lesser accuracy. The accuracy of the Guide
Star Catalog is 0.4'' in the north, and 0.6'' in the south (Taff et al.
1990, Ap.J., 353, L45). For faint novae, the coordinates are taken from
Duerbeck (1987, Sp. Sci. Rev., 45, 1) or from the literature (for recent
novae), and are precessed to the J2000 equinox. For those objects
without available/usable finding charts, coordinates have been obtained
from the literature, and are generally given to a lesser accuracy than
those objects measured in this work.
GALACTIC LATITUDE
the galactic latitude.
TYPE
the type of variability of the object. The table below lists the various
types used in this work, which is based on the classification scheme
used in the GCVS. Those types in upper-case letters are taken directly
from the GCVS, while those in lower-case letters have been obtained from
the literature (which was generally in agreement with the GCVS, and is
presumably more secure); whenever possible, a type from the literature
was used. There are many objects in the catalog designated NON-CV, which
are stars that have been previously cataloged as CVs, and are included
for completeness; the references for these stars are those papers which
refute the CV nature of the objects. The revised classification is given
in the notes for each object.
Type Definition
UG U Gem variable (dwarf nova)
UGZ U Gem variable (Z Cam subtype)
UGSS U Gem variable (SS Cyg subtype)
UGSU U Gem variable (SU UMa subtype)
UGWZ U Gem variable (WZ Sge subtype)
N nova
NA fast nova
NB slow nova
NC very slow nova
NR recurrent nova
NRA recurrent nova - giant donor (Webbink et al. 1987, Ap.J., 314,
653)
NRB recurrent nova - non-giant donor (Webbink et al. 1987, Ap.J.,
314, 653)
SN possible supernova with no galaxy visible
NL novalike variable
NLV novalike variable (V Sge subtype; Steiner and Diaz 1998, PASP,
110, 276)
UX novalike variable (UX UMa subtype)
VY novalike variable (VY Scl subtype - systems which undergo low
states)
AM AM Herculis variable (synchronous rotators)
DQ DQ Herculis variable (non-synchronous rotators)
CV cataclysmic variable (no type classification)
IBWD interacting binary white dwarf
M Mira variable
I Irregular variable
UV UV Ceti-type star
Z AN symbiotic variable (Z And subtype)
NON-CV not a cataclysmic variable (although once classified as such)
NON-EX non-existent object
PEC peculiar
: uncertain
:: very uncertain
YEAR OF OUTBURST
the year of outburst (for novae).
MAGNITUDE RANGE
the MAXimum and MINimum magnitudes for the objects; the magnitude
systems are listed in the table below. For novae, the primary sources
are Duerbeck (1987, Sp. Sci. Rev., 45, 1) and Duerbeck (2001, private
communication), while for the non-novae, the catalog of Ritter and Kolb
(1998, A&A Supp., 129, 83) is the prime source. When no other references
to brightness were available, the GCVS values are used.
Magnitude Definition
U Johnson U
B Johnson B
V Johnson V
I Johnson I
f m(2200)
g m(1400)
v visual
p photographic
r red
j SRC j (unfiltered IIIa-J)
c unfiltered CCD
h Hipparcos magnitude system
COORDINATE REFERENCE
a code for a reference to the coordinates. Entries with a four-character
code correspond to plate-IDs from the HST Guide Star survey; other codes
refer to references from the literature (clicking on the reference code
will bring up the complete reference). An asterisk (*) following the
reference means that there is a comment regarding the coordinate
measurement (see the notes for the object).
TYPE REFERENCE
a code for a reference to the CV classification; clicking on the
reference code will bring up the complete reference. An asterisk (*)
following the references means that there is a comment regarding the
classification (see the notes for the object).
CHART REFERENCE
a code for the original reference from which our chart is based clicking
on the reference code will bring up the complete reference. Note that
the identifications of the CVs are based on the published charts (or in
some cases coordinates only), and have not been independently verified
by the authors. An asterisk (*) following the references means that
there is a comment regarding the identification (see the notes for the
object).
SPECTRUM REFERENCE
a code for a reference to a published spectrum; clicking on the
reference code will bring up the complete reference. A suffix of S
indicates a spectrum in quiescence, while a suffix of X indicates a
spectrum in outburst. Whenever available, the quiescent spectrum was
chosen for the catalog over an outburst spectrum. A colon (:) following
the reference indicates that:
(i) the spectrum is only described,
(ii) the spectrum is a glass plate tracing, or
(iii) the reference is unconfirmed (only for a few novae in Duerbeck's
atlas)
OTHER NAME
discovery or common alternative (non-GCVS) designation for the object.
PERIOD
the orbital period (in days) for the object.
PERIOD REFERENCE
a code for a reference to the period; clicking on the reference code
will bring up the complete reference. Note that all periods come from
the catalog of Ritter and Kolb (1998, A&A Supp., 129, 83), or from
Ritter (private communication). An asterisk (:) following the references
means the period is uncertain.
SPACE-BASED OBSERVATIONS
Cataclysmic variables have been observed by space-based observatories
for many years, particularly by X-ray missions. We have searched the
archives of the High Energy Astrophysics Science Archive Research Center
(HEASARC) for observations of CVs from X-ray satellites (Ariel 5,
HEAO-1, HEAO-2, EXOSAT, Ginga, ROSAT, and ASCA) and the EUVE satellite,
and the IUE and HST archives for imaging/spectroscopy of CVs; for
on-going missions, our search contains observations in the archives as
of 2000 December. A ``Y'' in the field means that data from that
satellite exists; for HST data, the notes for the object indicate if the
data is imaging, spectroscopy, photometry, and/or astrometric.
The Atlas -
Finding charts for all objects with chart references (including objects
which we have identified based on positional coincidence) are included.
Most charts are based on the Digitized Sky Survey, and since those
plates vary in both color and limiting magnitude, we note the emulsion
and exposure time for each chart. The field-of-view for the charts is
also indicated (mostly 5' x 5'). The table below provides information on
the emulsions:
First Generation DSS, the emulsion/filter combinations are:
POSSI-E POSS-E RED PLATE,
XV - SERC-V Equatorial extension,
S - SERC-J Survey
Second Generation DSS, the emulsion/filter combinations are:
UK-F 'Galactic Red' survey (UK Schmidt) IIIaF + RG610 SHORT
exposure in galactic plane
POSSII-F POSS-II Red IIIaF + RG610
POSSII-J POSS-II Blue IIIaJ + GG385
ER - 'Equatorial Red' survey (UK Schmidt) IIIaF + RG610
XS - 'Second Epoch Southern' survey (UK Schmidt) IIIaF + RG610
Some charts are ground-based CCD images, while others (mostly globular
cluster CVs) are HST images; the filters and exposure times for these
are indicated. North is up and East to the left for all charts unless
explicitly noted (for some HST images). Tick marks are used to
identify the object, while circles are used for those fields where
this is not a definitive identification. Note that for some extremely
crowded fields, a circle has been used to mark the object.
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(End) J. Gass [SSDOO/ADC] 1-Mar-2001