9380 contact binaries from CRTS VSC J/MNRAS/465/4678 ivo://CDS.VizieR/J/MNRAS/465/4678 doi:10.26093/cds/vizier.74654678 CDS Marsh F.M. Prince T.A. Mahabal A.A. Bellm E.C. Drake A.J.,Djorgovski S.G. 2024-08-16T20:20:23Z 2019-09-12T14:54:49Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr eclipsing-binary-stars visible-astronomy sloan-photometry We construct a sample of 9380 contact binaries (W UMa systems) by using the Catalina Real-Time Transient Survey Variables Sources Catalogue. By measuring brightness change rates, light-curve statistics, and temperatures for this sample, we improve the understanding of contact binary light-curve characteristics, and luminosity variability on decadal time-scales. We show that binaries with convective outer envelopes have a different distribution of light-curve amplitudes and magnitude differences between eclipse minima than binaries with radiative outer envelopes. We find that more than 2000 binaries exhibit a linear change in mean brightness over the 8-yr timespan of observations with at least 3{sigma} significance. We note that 25.9 per cent of binaries with convective outer envelopes exhibit a significant change in brightness, while only 10.5 per cent of radiative binaries exhibit a significant change in brightness. In 205 binaries (2.2 per cent), we find that a sinusoid model better describes the luminosity trend within the 8-yr observation timespan. For these binaries, we report the amplitudes and periods (as estimated using observed half-periods) of this sinusoidal brightness variation and discuss possible mechanisms driving the variation. 2017MNRAS.465.4678M https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/465/4678 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to J/ApJS/213/9 : Catalina Surveys periodic variable stars (Drake+, 2014) https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/465/4678 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/465/4678 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/465/4678 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/465/4678 https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/465/4678 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/465/4678 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/MNRAS/465/4678/catalog (9380 contact binaries) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/465/4678/catalog? https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/465/4678/catalog? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/465/4678/catalog? 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20063-20064 20067 20070 20074-20075 20077-20081 20083-20086 20088-20090 20092-20094 20096 20098-20099 20101-20104 20107 20110-20114 20122 20132 20134-20135 20144 20146-20147 20149 20151 20158 20160 20164-20165 20167 20169 20171 20173 20175-20178 20184-20186 20188-20189 20191-20193 20195 20197-20199 20201-20202 20204 20206-20207 20210 20217-20219 20226 20234 20241 20244-20245 20250 20254 20258 20264-20266 20268-20270 20276 20281-20283 20285-20287 20289-20291 20293 20296-20297 20299-20300 20302 20304-20305 20307-20309 20311 20316 20318-20319 20323-20325 20327 20330 20333-20334 20340-20341 20349-20351 20356 20360 20363 20365-20366 20368-20370 20373-20376 20382-20383 20385-20387 20396 20398-20399 20404-20406 20408 20410-20411 20416 20418 20420 20425-20426 20436 20445 20449 20451-20452 20454 20456-20457 20459-20461 20463 20466 20472 21432-21433 21435 21439 21482 21781-21783 21788-21789 21813-21815 21817-21818 21820-21822 21824-21826 21830 21836 21839 21850 21856 21858 21861-21863 21866 21872-21873 21875 21880-21882 21904-21905 21909-21910 21916-21917 21919 21952 21954 21958 21960 21964 21967 21970-21971 21976 21983 21990-21991 21993-21995 22000 22002-22003 22007-22008 22011 22337 22340-22342 22356-22358 22384 22387 22393 22396-22397 22487 22519 22664 22667 22677 22679 22688 22692 22716-22717 22722 22725-22726 22739 22745 22752 22755 22758 22761-22762 22764 22770 22782 22791 22797 22799 22805-22806 22808 22810 22812-22813 22826-22827 22830 22838 22848-22850 22856 22858 22860 22878 22881 22887 22889-22894 22898 22900-22901 22904 22907 22916 22929-22930 22933-22934 22937-22942 22946 22951 22953-22954 22956-22958 22960-22962 22976-22978 22983 22988-22989 22992 22994 23000 23002 23043 23050-23051 23053-23054 23057 23060-23061 23063-23065 23074 23101 23104 23126-23127 23132-23133 23148 23182 23205 23207 23212 23216 23224 23229 23246 23250 23256 23258 23269-23271 23275 23278 23295-23298 23339 23342-23343 23353 23355-23356 23358-23359 23400 23402-23403 23410-23411 23413-23415 23421 23428-23429 23441 23445 23464 23466 23470-23471 23482-23483 23485 23487 23489 23546 23563 23584 24094-24095 24097-24099 24104-24105 24107-24109 24112 24115-24118 24120-24121 24124 24231 24236 24238 24247 24290-24291 24295 25307 25317 25330 25335 25510 25513 25516-25517 25567 25588 25590 25598 25688-25689 25692 25821 25843 25847 25852 25855 25877 25903 25911 25913 25915 25918-25919 25922 25924-25926 25929 25931 25937-25938 25943 25945 25947 25949 25957 25962 25967 25969-25971 25975 25977 25979-25981 25983 25988 25991 25993 25996 26000 26013 26015 26023 26030 26032 26034 26038-26039 26042-26045 26050-26053 26056-26057 26064 26067-26068 26070-26072 26075 26078 26081 26088 26091-26094 26098 26101-26102 26106 26111 26124 26156 26161-26162 26168 26197 26201 26204 26209 26215 26220-26221 26231-26232 26234-26236 26239 26243 26245 26250-26251 26262-26263 26287 26294 26306-26308 26312 26314-26315 26319-26320 26322 26324 26329-26331 26338-26340 26344 26350 26352 26357 26361 26364 26368 26370-26371 26377 26380 26382-26383 26385 26392 26398 26400-26402 26404 26414 26417 26425 26429 26431 26442 26445 26449 26453-26454 26468 26470 26474 26478 26480 26483 26485-26486 26491 26493 26501-26502 26511 26520 26530 26542 26545-26546 26549 26554-26555 26562 26565 26571-26572 26575 26579 26582 26585 26587 26596 26604 26607 26613 26615-26616 26619 26867 26869-26870 26874 26878 26900 26902 26972-26974 26983 26989 26993 26995 26997 27001-27002 27004 27007 27012 27014 27016 27031 27038-27039 27042 27045 27052 27059 27063 27066 27070 27086 27094 27098 27101 27103-27104 27110 27122 27188 27204-27205 27207-27208 27211-27213 27216 27226 27230 27238 27245-27246 27248-27249 27251-27252 27257 27259 27287 27290-27294 27296-27297 27299 27301 27303 27305 27308 27311 27321 27324-27325 27327-27330 27334-27336 27339 27341-27342 27344-27345 27348 27351 27362-27363 27366-27367 27370 27372 27376 27378 27385-27387 27389-27391 27399 27401 27403 27409 27414-27415 27422 27424-27426 27434 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28206 28215 28218 28221 28223 28232-28233 28235-28236 28241 28248 28258 28260 28266 28270 28279 28295 28297 28302-28303 28305 28307 28312-28313 28315 28320-28321 28323 28331 28334 28341 28351 28357 28362 28368-28369 28374 28377 28383 28387 28392-28393 28396-28397 28399 28406 28410-28411 28414 28423 28426 28430 28443 28449 28451-28452 28458 28472 28475 28483 28493-28495 28497-28498 28500 28502 28512 28515 28517 28533 28535-28536 28546 28564 28567 28573 28582 28585 28589 28591 28593-28595 28601 28610 28617-28618 28622 28625 28633 28635-28636 28638 28641 28651 28666 29968-29969 29972-29973 29975 30021 30023 30029 30032-30034 30037 30039 30045 30782 30824 30826 30831 30843 30919 30924-30925 30930 30938 30949 30951 30958 30963 30966 30968 30970 30972-30973 31038 31104-31105 31108 31121 31129-31131 31134 31138 31142-31143 31145 31149-31150 31158 31162 31164 31166-31167 31173 31223 31229 31231 31279 31284-31285 31287 31291-31294 31303 31305 31308 31312 31314 31317-31319 31324-31325 31329 31333 31335 31341 31346-31347 31349 31351 31353 31355 31358-31359 31366 31371 31373-31374 31377-31378 31394 31399 31403 31406-31407 31410 31415 31419 31421-31422 31426 31430-31431 31437-31438 31442-31446 31448-31449 31451 31453-31455 31458-31462 31464-31465 31470-31473 31477-31479 31482 31484 31486-31487 31490 31508 31511 31521-31522 31529-31532 31534-31535 31538 31540 31542 31552 31580 31586-31587 31592 31594 31603 31605-31608 31610-31613 31615 31617 31619-31620 31622-31623 31626-31627 31632-31633 31635 31637-31638 31641-31643 31650-31651 31656-31657 31659-31662 31665 31668-31669 31680-31682 31693-31694 31704-31705 31707-31710 31716 31718-31720 31722-31723 31728-31730 31732-31733 31735 31741 31743 31882-31883 31886 31907 31912-31914 31982 32264-32266 32288-32290 32293-32295 32300 32302-32303 32314-32315 32333 32345 32350 32368 32374 32377 32379 32381-32385 32387-32389 32391-32393 32407 32409-32414 32418-32420 32422-32425 32432-32434 32437-32439 32441-32446 32448-32449 32451 32454-32455 32461-32463 32466 32468 32470-32471 32473-32474 32484 32486-32488 32491 32493-32497 32499-32502 32504 32506 32554-32555 32558 32644 32646-32650 32653 32655 32673-32674 32680-32682 32684-32685 32687 32689-32690 32700 32702 32761-32762 32764 36331 36335 36338 36543 36582 36600 36604-36605 36672 36719 36726 36776 36779 36783 36789 36791 36794 36796 36799-36801 36805-36809 36835 36837 36839 36843 36846 36857-36858 36861 44866-44867 44874 44876 44896 44899-44900 44904 44949 45023 45039 45045-45050 45054 48574 48741 48743 48749 48752 48754 48756 48759 48765-48767 48859 48881 48887 48900 48902-48903 48905-48907 48928-48929 48931 48933 48935-48938 48940-48941 48944 48946 48948 48950-48952 48956-48957 48960 48962 48968 48971 48973-48975 48989-48990 48993 48997-48998 49004 49006-49007 49009-49013 49015 49020-49021 49023 49026 49032 49079 49084-49085 49091-49094 49099-49101 49103-49105 49107-49108 49110-49113 49115-49116 49118-49119 49126 49130 49133 49135-49137 49141-49143 49146-49150 2.85864675833786e-19 6.090060298487514e-19 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/465/4678?format=ascii Optical default J/MNRAS/465/4678/catalog 9380 contact binaries recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Index [0/9379] Number associated with a binary system meta.id int CSS Catalina Surveys Identifier CSS_JHHMMSS.s+DDMMSS meta.id;meta.main char nID Catalina Surveys Numerical Identifier meta.id RAJ2000 Right ascension (J2000) pos.eq.ra;meta.main DEJ2000 Delcination (J2000) pos.eq.dec;meta.main Nobs Number of CRTS observations of the source meta.number int Vmag Mean CSS magnitude of the source mag phot.mag;em.opt.V float Per Orbital period of the source d time.period double Amp Amplitude of the source light-curve mag phot.mag float e_Amp rms uncertainty on Amp mag stat.error float Dmin Difference between the eclipse minima of the source light-curve mag phot.mag;arith.diff float e_Dmin rms uncertainty on Dmin mag stat.error float Dmax Difference between the out-of-eclipse maxima of the source light-curve mag phot.mag;arith.diff float e_Dmax rms uncertainty on Dmax mag stat.error float slope Linear slope of the harmonic fit residuals mag/yr stat.fit.param double e_slope rms uncertainty on slope mag/yr stat.error double MaxPower Maximum Lomb-Scargle power of the harmonic fit residuals src.var.index float 3sPower Lomb-Scargle power which corresponds to a 3-sigma detection of a periodic signal in the harmonic fit residuals src.var.index float Pres Period of the strongest signal in the harmonic fit residuals d time.period float sinAmp Amplitude of the strongest periodic signal in the harmonic fit residuals mag src.var.amplitude float maxBIC Maximum Bayesian Information Criterion achieved by the strongest periodic signal in the harmonic fit residuals stat.param float Teff Effective temperature of the source as determined by SDSS (g-r) color K phys.temperature.effective float e_Teff rms uncertainty on Teff K stat.error;phys.temperature.effective float Eu Extinction to the source in the SDSS u band mag phys.absorption float Eg Extinction to the source in the SDSS g band mag phys.absorption float Er Extinction to the source in the SDSS r band mag phys.absorption float Ei Extinction to the source in the SDSS i band mag phys.absorption float e_Eu rms uncertainty on Eu mag stat.error float e_Eg rms uncertainty on Eg mag stat.error float e_Er rms uncertainty on Er mag stat.error float e_Ei rms uncertainty on Ei mag stat.error float Euc Extinction-corrected SDSS u band measurement mag phys.absorption float Eug Extinction-corrected SDSS g band measurement mag phot.mag;em.opt.B float Eur Extinction-corrected SDSS r band measurement mag phot.mag;em.opt.R float Eui Extinction-corrected SDSS i band measurement mag phot.mag;em.opt.I float Dist Estimated distance to the source (error is approximately 10%) pc pos.distance double E(B-V) B-V extinction to the source mag phot.color.excess float e_E(B-V) rms uncertainty on E(B-V) mag stat.error float umag u-band measurement as reported by SDSS mag phot.mag;em.opt.U float e_umag rms uncertainty in umag mag stat.error;phot.mag;em.opt.U float gmag g-band measurement as reported by SDSS mag phot.mag;em.opt.B float e_gmag rms uncertainty in gmag mag stat.error;phot.mag;em.opt.B float rmag r-band measurement as reported by SDSS mag phot.mag;em.opt.R float e_rmag rms uncertainty in rmag mag stat.error;phot.mag;em.opt.R float imag i-band measurement as reported by SDSS mag phot.mag;em.opt.I float e_imag rms uncertainty in imag mag stat.error;phot.mag;em.opt.I float zmag z-band measurement as reported by SDSS mag phot.mag;em.opt.I float e_zmag rms uncertainty on zmag mag stat.error;phot.mag;em.opt.I float Simbad Simbad column added by the CDS meta.ref.url char