J/MNRAS/482/98ivo://CDS.VizieR/J/MNRAS/482/98doi:10.26093/cds/vizier.74820098CDSDrake A.J.Djorgovski S.G.Graham M.J.Stern D.Mahabal A.A.,Catelan M.Christensen E.Larson S.2024-08-19T20:15:29Z2022-08-01T12:11:15ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiesphotometryactive-galactic-nucleisupernovaeWe present an analysis of 9yr of Catalina Surveys optical photometry for 1.4 million spectroscopically confirmed SDSS galaxies. We find 717 outburst events that were not reported by ongoing transient surveys. These events have time-scales ranging from weeks to years. More than two-thirds of these new events are found in star-forming galaxies, while such galaxies only constitute ~20 per cent of our sample. Based on the properties of the hosts and events, we find that almost all of the new events are likely to be associated with regular supernovae. However, a small number of long time-scale events are found among the galaxies containing AGNs. These events have similar properties to those recently found in the analyses of light curves of large samples of AGNs. Given the lack of such events among more than a million passive galaxies in the sample, we suggest that the long outbursts are associated with supermassive black holes or their environments.2019MNRAS.482...98Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/482/98CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/482/98https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/482/98http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/482/98https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/482/98https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/482/98http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/482/98GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/482/98/table1 (Properties of CSS outbursts)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/482/98/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/482/98/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/482/98/table1?GETtext/xml+votable180.050000true139.31224.13370.005555555555555556Cone search capability for table J/MNRAS/482/98/table2 (Properties of outburst host galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/482/98/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/482/98/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/482/98/table2?GETtext/xml+votable180.050000true5.81871-10.313930.0055555555555555566/546 2177 4116 4130-4131 4153 4161 4175 4197 4199 4210 4232 4249 4262 4265 4276 4278 4287 4291 4303 4309 4317 4319 4327 4331 4348 4352 4368 4376 4385 4405 4452 4460 4476 4478 4488 4507 4517 4519 4523 4530 4545 4568 4605-4606 4614 4630 4639 4643 4647 4650 4665 4674 4686 4691-4692 4715 4727 4742 4769 4825-4826 4850 4874 4879 4896 4908 4921 4925 4941-4944 4948 4953 4956 4958-4959 4961 4966 4970 4972 4975 4981 4984 4991 4994 5004 5012 5017 5023 5025 5030 5034 5038 5047 5051 5055 5062 5079 5082 5091 5094 5099 5103 5109 5117 5121 5127 5136 5142 5149-5150 5165 5172 5174 5178 5180 5184 5193 5196 5201 5203 5205 5210 5214 5221 5239 5243 5255 5265 5268 5270 5272 5290 5323 5327 5349 5353 5360 5369-5370 5373 5379 5394 5400 5418 5424-5425 5427 5456 5478 5481 5512-5513 5518 5520 5525 5533 5536 5538 5557 5568 5584 5635 5639 5643-5644 5646 5680 5682 5685-5686 5698 5707 5722 5725 5727 5736 5766 5785 5795 5848 5875 5884 5895 5905 5915 6058 6074 6169 6214 6222-6223 6226 6229 6269 6352 6404 6410 6429 6444 6449 6471 6477-6478 6481 6501 6522 6530 6544 6570 6580 6583 6588-6589 6605-6606 6611 6627 6916 7183-7184 7213 7241 7244 7270 7299 7315 8198 8200 8211 8233-8234 8254 8263-8264 8266 8269 8287 8292 8294 8300 8310 8318 8321 8333 8340 8342 8344 8350-8351 8376-8377 8389 8413 8420 8426 8429 8432 8444 8448 8470 8477 8494 8512 8515 8517 8552 8555 8557 8595 8622 8626 8629 8649 8656 8666 8680 8692 8708 8717 8734 8736 8745 8748 8754 8771-8772 8778 8786 8791 8797-8798 8829 8841 8843 8853 8860 8862 8895 8920-8921 8924 8929 8935 8944 9004 9019 9037 9046 9075 9077 9106 9118 9131 9146 9176 9219 9233 9245 9259 9307 9311 9367 9505 9521 9735 9765 9794 9805 9841 9868 9877 9916 9931 9987 10019 10112 10118 10158 10180 10241 10271 10282 10305 10310-10311 10320 10342 10352 10367 10431 10438 10442 10468 10473 10516 10519 10544 10556 10625 10627 10655 10662 10666-10667 10702 10773-10774 10815 10822 10830 10840 10852 10862 10889 10893 10908 10942 10963 10978 11330 11347 11377 12389 17231 17234 17246 17469 17494 17498 17508 17563-17564 17578 17758 17776 17828 17836 17856 17920 18010 18025 18207 18226 18301-18302 18411 18779 18788 18839 18851 18881 19030 19035 19116 19777 19956 19989 19991 20006 21853 21878 22005 22385 23186 23211 25931 25934 25963 25969 25975 26027 26031 26041 26047 26051 26060 26062 26065 26068-26069 26085 26104 26159 26199 26205-26206 26227 26236 26238 26244 26251 26276 26286 26302 26308 26322 26325 26334-26335 26337 26346 26351 26379 26395 26398 26409 26430 26434 26436 26438 26440 26457-26458 26469 26483 26504-26505 26512 26523 26551 26555 26561 26564 26573 26604 26620 26962 26964 26978 27000 27003 27031 27034 27056 27060 27074 27106 27115 27217 27220-27221 27228 27231 27234 27243 27292 27317 27338 27348 27399 27403 27408 27413 27418 27439 27447 27452 27470-27472 27474 27480 27482 27492 27495 27509 27514 27541 27546 27571 27577 27594-27595 27628 27631 27639 27649 27669 27691 27720 27727 27738 27760 27771 27806 27828-27830 27837 27843 27847 27866-27867 27881 27883 27886 27906 27929 27937 27946 27958 27963 27970 27999 28004 28024 28036 28055 28064 28071 28076 28084 28099 28154 28163 28166 28174 28179 28182-28183 28206 28230 28244 28249 28254 28266 28275 28278 28290 28296 28307 28327 28342 28345 28372 28391-28392 28399 28401 28445-28446 28483 28492 28495 28498 28501 28506 28518 28526 28531 28534 28538 28541 28545 28551-28554 28581 28583 28586 28604 28612 28617 28627 28631 28639 28643 28649 28654 28664 31290 31325 31465 31468 31472 31487 31656 31671 31679 31695 31728 32399 32410 32433 32447 36727 49018https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/482/98?format=asciidefaultJ/MNRAS/482/98/table1Properties of CSS outburstsAllDisplay the 2CSS outbursts and outburst host galaxies datameta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDCRTS outburst candidate ID (CRTS_OBC_NNN)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainVcssmagApparent magnitude for the peak of the outburst in pseudo-V magnitudemagphot.mag;em.opt.VfloatVcssMAGAbsolute magnitude for the peak of the outburst in pseudo-V magnitudemagphys.magAbsfloatMJDMJD of the outburst peakdtime.epoch;stat.maxfloatLenghtTime span over which the candidate outburst was detected about 1{sigma}dtime.intervalintSigniTotal significance in sigma of the detections during the outburst time spanstat.fit.goodnessfloatlogPProbability of false detection assuming normally distributed datastat.fit.goodnessfloatNightsNumber of nights when the outburst was detected above 1{sigma}meta.numberintQualityQuality of the outburst candidate based the inspection of light curves and images as well as the presence of detections in MLS data (1)meta.code.qualcharn_QualityNote on Quality (2)meta.notecharJ/MNRAS/482/98/table2Properties of outburst host galaxiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHostSDSS ID of the outburst host galaxies (SDSS_JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzRedshift of the galaxies from SDSSsrc.redshiftdoubleVcssmagApparent magnitude of the host based on CSS photometry (pseudo-V magnitude) after correcting for foreground extinction using the Schlegel et al. (1998ApJ...500..525S) reddening mapsmagphot.mag;em.opt.VfloatVcssMAGAbsolute magnitude (pseudo-V magnitude) of the host based on CSS photometry after correcting for foreground extinction using the Schlegel et al. (1998ApJ...500..525S) reddening mapsmagphys.magAbsdoubleMJDDate that the SDSS spectrum was obtaineddtime.epochintSFR? Star formation rate for the best-fitting model to the SDSS spectrumlog(solMass.yr**-1)phys.SFRfloatnullable[Z/H]? Metallicity (model values 0.004, 0.01, 0.02, 0.04) for the best-fitting model to the SDSS spectrumphys.abund.ZfloatnullableAge? Age for the best-fitting model to the SDSS spectrumGyrtime.agefloatnullableMass? Host mass for the best-fitting model to the SDSS spectrumlog(solMass)phys.massfloatnullablen_Host[a ] a : Denotes whether a galaxy is an AGN based on the spectrum and/or WISEmeta.notecharAllDisplay the 2CSS outbursts and outburst host galaxies datameta.ref.urlchar