J/AJ/165/163 Cataclysmic variables in the Gaia era (Canbay+, 2023)
Galactic Model Parameters and Spatial Density of Cataclysmic Variables in the
Gaia Era; New Constraints on Population Models.
Canbay R., Bilir S., Ozdonmez A., Ak T.
<Astron. J., 165, 163 (2023)>
=2023AJ....165..163C 2023AJ....165..163C
ADC_Keywords: Stars, variable; Proper motions; Parallaxes, trigonometric;
Optical
Keywords: Cataclysmic variable stars ; Galaxy disks
Abstract:
The spatial distribution, Galactic model parameters, and luminosity
function of cataclysmic variables (CVs) are established using
reestimated trigonometric parallaxes from Gaia DR3. The data sample of
1587 CVs in this study is claimed to be suitable for Galactic model
parameter estimation as the distances are based on trigonometric
parallaxes, and the Gaia DR3 photometric completeness limits were
taken into account when the sample was created. According to the
analysis, the scale height of all CVs increases from 248±2 to
430±4pc toward shorter periods near the lower limit of the period
gap and suddenly drops to 300±2pc for the shortest orbital period
CVs. The exponential scale heights of all CVs and the magnetic systems
are found to be 375±2 and 281±3pc, respectively, considerably
larger than those suggested in previous observational studies. The
local spatial density of all CVs and the magnetic systems in the
sample are 6.8-1.1+1.3x10-6 and 2.1-0.4+0.5x10-6/pc3,
respectively. Our measurements strengthen the 1-2 order of magnitude
discrepancy between the CV spatial densities predicted by population
synthesis models and observations. It is likely that this discrepancy
is due to objects undetected by CV surveys, such as systems with very
low M☉ and ones in the period gap. A comparison of the luminosity
function of white dwarfs with the luminosity function of all CVs in
this study show that 500 times the luminosity function of CVs fits
very well to the luminosity function of white dwarfs. We conclude that
the estimations and data sample in this study can be confidently used
for further analyses of CVs.
Description:
In order to construct our cataclysmic variables (CVs) sample, we
collected CVs from Americain Association of Variable Star Observers
(AAVSO)'s International Variable Star Index database. Their equatorial
and Galactic coordinates were taken from SIMBAD database.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 168 1714 The data sample
refs.dat 70 82 References used
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See also:
B/cb : Cataclysmic Binaries, LMXBs, and related objects (Ritter+, 2004)
B/gcvs : General Catalogue of Variable Stars (Samus+, 2007-2017)
I/337 : Gaia DR1 (Gaia Collaboration, 2016)
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
I/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)
V/110 : Catalog of Cataclysmic Variables (Downes+ 2001)
V/113 : Cataclysmic Binaries, LMXBs, and related objects (Ritter+, 2003)
V/123 : Catalog of Cataclysmic Variables (Downes+ 2001-2006)
J/A+A/312/93 : Cataclysmic variable systemic-velocity (van Paradijs+, 1996)
J/MNRAS/355/307 : SA114 Ug'r'i'Z photometry (Karaali+, 2004)
J/A+A/453/635 : Modelling Galactic Interstellar Extinction (Marshall+, 2006)
J/A+A/463/1053 : Differential photometry of WX Cet (Sterken+, 2007)
J/AJ/134/185 : Cataclysmic variables from SDSS-DR5 (Szkody+, 2007)
J/other/NewA/13.133 : 2MASS photometry of cataclysmic variables (Ak+, 2008)
J/ApJS/175/191 : Variables from 2MASS calibration fields (Plavchan+, 2008)
J/PASP/122/1285 : Radial-velocities 20 cataclysmic var. (Thorstensen+, 2010)
J/ApJS/194/28 : The evolution of cataclysmic variables (Knigge+, 2011)
J/AJ/142/181 : CVs from SDSS. VIII. The final year (Szkody+, 2011)
J/A+A/548/A79 : INTEGRAL-OMC optic. variable sources (Alfonso-Garzon+, 2012)
J/AJ/144/81 : Spectroscopy & photometry CV candidates (Thorstensen+, 2012)
J/A+A/553/A28 : VI light curves & spectra V479 And (Gonzalez-Buitrago+ 2013)
J/ApJS/213/9 : Catalina Surveys periodic variable stars (Drake+, 2014)
J/AJ/150/170 : Radial velocities of 7 cataclysmic binaries (Halpern+, 2015)
J/other/NewA/34.234 : Galactic cataclysmic variable distances (Ozdonmez+, 2015)
J/MNRAS/456/4441 : Outburst catalogue cataclysmic variables (Coppejans+, 2016)
J/PASJ/68/65 : Superhumps in SU UMa-type dwarf novae (Kato+, 2016)
J/AJ/152/226 : RVel of 35 cataclysmic variables (Thorstensen+, 2016)
J/MNRAS/465/4968 : Cataclysmic variables observations (Hardy+, 2017)
J/PASJ/69/75 : Superhumps in SU UMa-type dwarf novae (Kato+, 2017)
J/AJ/155/247 : RVel of 6 X-ray cataclysmic binaries (Halpern+, 2018)
J/AJ/155/58 : 2006-2016 CCD photo. V723Cassiopeia (Hamilton-Drager+, 2018)
J/AJ/156/231 : Radial velocities of 2 VY Sculptoris CV stars (Weil+, 2018)
J/MNRAS/486/5535 : Parameters of 15 Cataclysmic Variables (McAllister+, 2019)
J/MNRAS/492/L40 : Disentangling cataclysmic variables Gaia DR2 (Abril+, 2020)
J/MNRAS/491/5717 : Evidenced reduced magnetic braking polars (Belloni+, 2020)
J/ApJS/249/18 : The ZTF catalog of periodic variable stars (Chen+, 2020)
J/MNRAS/491/2217 : Study of spiral density waves in CVs (Ruiz-Carmona+, 2020)
J/AJ/160/6 : OSMOS & modspec RV of 30 cataclysmic var (Thorstensen, 2020)
J/A+A/649/A6 : Gaia Catalogue of Nearby Stars (Gaia collaboration, 2021)
J/ApJ/923/100 : SOAR spectrum of V5558 Sgr (NOVA Sgr 2007) (Metzger+, 2021)
http://www.aavso.org/vsx/ : AAVSO International Variable Star Index
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- ID Sequential identifier used in this work
7- 45 A39 --- Name Star Name
47- 48 I2 h RAh [0/23] Hour of Right Ascension (J2000)
50- 51 I2 min RAm Minute of Right Ascension (J2000)
53- 57 F5.2 s RAs Second of Right Ascension (J2000)
59- 59 A1 --- DE- [±] Sign of the Declination (J2000)
60- 61 I2 deg DEd Degree of Declination (J2000)
63- 64 I2 arcmin DEm Arcminute of Declination (J2000)
66- 70 F5.2 arcsec DEs Arcsecond of Declination (J2000)
72- 79 A8 --- Group Object Group; magnetic (mCV) or
non-magnetic (non-mCVs)
81- 88 F8.6 d Porb [0.002/5.8]? Orbital Period
90- 96 F7.4 mag Gmag [8.01/18.6] Gaia DR3 G-band magnitude
98-104 F7.4 mag e_Gmag [-0.02/0.2] Uncertainty in Gmag
106-112 F7.4 mas plx [0.1/45.7] trigonometric parallax, Gaia DR3
114-119 F6.4 mas e_plx [0.01/0.8] Uncertainty in plx
121-125 F5.3 --- sv/v [0/1.66] relative parallax errors
127-134 F8.3 mas/yr pmRA [-345/1559] Gaia DR3 proper motion in RA
136-140 F5.3 mas/yr e_pmRA [0.006/0.9] Uncertainty in pmRA
142-149 F8.3 mas/yr pmDE [-361/1698] Gaia DR3 proper motion in DE
151-155 F5.3 mas/yr e_pmDE [0.01/0.7] Uncertainty in pmDE
157-160 I4 pc Dist [22/6959] Distance, from Gaia EDR3
162-165 I4 pc e_Dist [0/4322] Uncertainty in Dist
167-168 I2 --- Ref [1/82]? References
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Ref [1/82] Reference number
4- 33 A30 --- Author Main author
35- 53 A19 --- BIB BIBcode
55- 70 A16 --- Cat. Catalog in Vizier
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 01-Sep-2023