J/MNRAS/524/4867 CVs from SDSS (Inight+, 2023)
A catalogue of cataclysmic variables from 20 years of the Sloan Digital Sky
Survey with new classifications, periods, trends and oddities.
Inight K., Gaensicke B.T., Breedt E., Israel H.T., Littlefair S.P.,
Manser C.J., Marsh T.R., Mulvany T., Pala A.F., Thorstensen J.R.
<Mon. Not. R. Astron. Soc. 524, 4867 (2023)>
=2023MNRAS.524.4867I 2023MNRAS.524.4867I (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, cataclysmic ; Photometry, SDSS ; Binaries, orbits
Keywords: dwarf novae - cataclysmic variables - white dwarfs
Abstract:
We present a catalogue of 507 cataclysmic variables (CVs) observed in
SDSS I to IV including 70 new classifications collated from multiple
archival data sets. This represents the largest sample of CVs with
high-quality and homogeneous optical spectroscopy. We have used this
sample to derive unbiased space densities and period distributions for
the major sub-types of CVs. We also report on some peculiar CVs,
period bouncers and also CVs exhibiting large changes in accretion
rates. We report 70 new CVs, 59 new periods, 178 unpublished spectra,
and 262 new or updated classifications. From the SDSS spectroscopy, we
also identified 18 systems incorrectly identified as CVs in the
literature. We discuss the observed properties of 13 peculiar CVS, and
we identify a small set of eight CVs that defy the standard
classification scheme. We use this sample to investigate the
distribution of different CV sub-types, and we estimate their
individual space densities, as well as that of the entire CV
population. The SDSS I to IV sample includes 14 period bounce CVs or
candidates. We discuss the variability of CVs across the
Hertzsprung-Russell diagram, highlighting selection biases of
variability-based CV detection. Finally, we searched for, and found
eight tertiary companions to the SDSS CVs. We anticipate that this
catalogue and the extensive material included in the Supplementary
Data will be useful for a range of observational population studies of
CVs.
Description:
We provide two files that are machine-readable versions of tables 1
and 2 in the supplementary data to the paper. CVlist (tabledata.dat in
the paper, tablea1.dat) contains one record for each CV in the sample
whilst Obslist (suppmatt-plate-mjd-fiber.dat in the paper,
tablea2.dat) contains one record for each CV observation (note that
some CVs were observed more than once).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 249 507 CVs from SDSS I to IV
(corrected version, 08-Dec-2023)
tablea2.dat 116 687 CV observation
fig/* . 672 Individual png figures
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See also:
I/350 : Gaia EDR3 (Gaia Collaboration, 2020)
Byte-by-byte Description of file: tablea1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 23 A23 --- SDSS Unique reference for the SDSS object
25- 53 A29 --- Name SIMBAD name (where available)
55- 73 I19 --- GaiaEDR3 ? The unique source_id of the Gaia
EDR3 counterpart
75- 88 F14.11 d Per ? Orbital period
90-102 F13.11 d e_Per ? Orbital period error
104 A1 --- u_Per [:] Uncertainty flag on Per (tentative value)
105 A1 --- f_Per [*] * for orbital period derived from
Superhump periods
107-123 F17.14 mag gmag ?=99 g-band magnitude from the SDSS survey
125-143 F19.14 pc Dist ? Distance from Bailer-Jones et al.
(2021AJ....161..147B 2021AJ....161..147B, Cat. I/352)
145-157 A13 --- VType Classification using the taxonomy defined in
the paper, a colon (:) indicates a tentative
value
159-179 A21 --- RefDisc BibCode of the earliest identification of
this CV
181-199 A19 --- RefSp BibCode of the first published spectrum
201-219 A19 --- RefPer BibCode of the source of the orbital period
221-235 F15.11 deg RAdeg Right ascension (J2000)
237-249 F13.9 deg DEdeg Declination (J2000)
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Byte-by-byte Description of file: tablea2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 23 A23 --- SDSS Unique reference for the SDSS object
25- 53 A29 --- Name SIMBAD name (where available)
55- 59 I5 --- Plate SDSS plate used for the observation
61- 65 I5 --- MJD Modified Julian Date of the observation
67- 71 I5 --- Fiber Fiber within the plate used for the observation
73-116 A44 --- Fig Name of the figure in subdirectory fig
--------------------------------------------------------------------------------
Acknowledgements:
Keith Inight, keith.inight(at)gmail.com
History:
24-Aug-2023: on-line version
08-Dec-2023: corrected version of tablea1.dat
(End) Patricia Vannier [CDS] 23-Aug-2023