am lensing 2ivo://org.gavo.dc/amlensing/q3/qThe GAVO DC teamKlüter, J.Demleitner, M.Proft, S.2021-12-02T10:23:21Z2021-12-02GAVO Data Centre Team

Mönchhofstrasse 12-14, D-69120 Heidelberg

gavo@ari.uni-heidelberg.de+49 6221 54 1837catalogsastrometric-microlensing-effect From the Gaia eDR3 catalogue we predict astrometric microlensing events by foreground stars with high proper motion (μ > 100 mas/yr) passing a background source in the next decades. Using Gaia DR3 photometry we determine an approximate mass of the lens, which we use to calculate the expected microlensing effects. This yields 4842 microlensing events by 3791 different lenses between 2010 and 2066 with expected shifts larger than 0.1 mas between the lensed and unlensed positions of the source. The past events might be interested when analyzing the individual Gaia measurements). 685 of those are expected to happen within the next decade (2021-2031). For 140 events we also expect a magnification between 1 mmag and 0.6 mag.Klüter et al, 2021, AJ submittedhttp://dc.g-vo.org/amlensing/q3/q/infoIsServedByGAVO Data Center TAP serviceTo the extent possible under law, the publisher has waived all copyright and related or neighboring rights to the catalogue of astrometric microlensing events. For details, see the `Creative Commons CC0 1.0 Public Domain dedication <http://creativecommons.org/publicdomain/zero/1.0/>`_. Of course, you should still give proper credit when using this data as required by good scientific practice. .. image:: /static/img/cc0.png :alt: [CC0] This work has made use of data from the European Space Agency (ESA) mission `Gaia <https://www.cosmos.esa.int/gaia>`_, processed by the Gaia Data Processing and Analysis Consortium (`DPAC <https://www.cosmos.esa.int/web/gaia/dpac/consortium>`_). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.http://dc.g-vo.org/amlensing/q3/q/formhttps://dc.g-vo.org/amlensing/q3/q/formhttp://dc.g-vo.org/amlensing/q3/q/scs.xml?https://dc.g-vo.org/amlensing/q3/q/scs.xml?GETapplication/x-votable+xmlRARight Ascension (ICRS decimal)degpos.eq.rarealDECDeclination (ICRS decimal)degpos.eq.decrealSRSearch radiusdegreallens_phot_g_mean_magMean magnitude of the lens in the integrated G band from Gaia eDR3.magphot.mag;em.opt.Vrealob_phot_g_mean_magMean magnitude of the lensed object in the integrated G band from Gaia eDR3.magphot.mag;em.opt.VrealtcaEstimated time of the closest approach.yrtime.epochrealdistEstimated distance at closest approach.maspos.angdistancerealshift_plusMaximal astrometric shift of brighter image.maspos;arith.diffrealresponseformatFile format requested for output.meta.code.mimecharmaxrecMaximum number of records returned. Pass 0 to retrieve service parameters.integerverbExhaustiveness of column selection. VERB=1 only returns the most important columns, VERB=2 selects the columns deemed useful to the average user, VERB=3 returns a table with all available columns.integer180100000true318.7286035037.771353420.001http://dc.g-vo.org/amlensing/q3/q/capabilitieshttps://dc.g-vo.org/amlensing/q3/q/capabilitieshttp://dc.g-vo.org/amlensing/q3/q/availabilityhttps://dc.g-vo.org/amlensing/q3/q/availabilityhttp://dc.g-vo.org/amlensing/q3/q/tableMetadatahttps://dc.g-vo.org/amlensing/q3/q/tableMetadatahttp://dc.g-vo.org/taphttps://dc.g-vo.org/tapGaiaOpticalplc3 From the Gaia eDR3 catalogue we predict astrometric microlensing events by foreground stars with high proper motion (μ > 100 mas/yr) passing a background source in the next decades. Using Gaia DR3 photometry we determine an approximate mass of the lens, which we use to calculate the expected microlensing effects. This yields 4842 microlensing events by 3791 different lenses between 2010 and 2066 with expected shifts larger than 0.1 mas between the lensed and unlensed positions of the source. The past events might be interested when analyzing the individual Gaia measurements). 685 of those are expected to happen within the next decade (2021-2031). For 140 events we also expect a magnification between 1 mmag and 0.6 mag.plc3.dataThe final candidate table for astrometric microlensing events predicted from Gaia eDR3. This has estimates of minimal distances, epochs, etc. Columns prefixed with lens_ are for the lens, columns prefixed with ob_ are for the lensed object.4842event_idUnique identifier of this event. This is the decimal representation of the Gaia eDR3 source_id of the lens, and a disambiguator for the lensed object.meta.id;meta.maincharindexedprimarylens_idGaia eDR3 source_id of the lens.meta.idlonglens_raGaia eDR3 RA of the lensdegpos.eq.ra;meta.maindoubleindexednullablelens_decGaia eDR3 Declination of the lensdegpos.eq.dec;meta.maindoubleindexednullablelens_err_raError of lens__ra from Gaia eDR3masstat.error;pos.eq.ra;meta.mainfloatnullablelens_err_decError of lens__dec from Gaia eDR3masstat.error;pos.eq.dec;meta.mainfloatnullablelens_pmraProper motion in RA of the lens from Gaia eDR3mas/yrpos.pm;pos.eq.rafloatnullablelens_pmdecProper motion in Declination of the lens from Gaia eDR3mas/yrpos.pm;pos.eq.rafloatnullablelens_err_pmraError of lens_pmra from Gaia eDR3deg/yrpos.pm;pos.eq.rafloatnullablelens_err_pmdecError of lens_pmdec from Gaia eDR3deg/yrpos.pm;pos.eq.decfloatnullablelens_parallaxParallax of the lens from Gaia eDR3maspos.parallaxfloatnullablelens_err_parallaxStandard error of the parallax the lens from Gaia eDR3masstat.error;pos.parallaxfloatnullablelens_phot_g_mean_magMean magnitude of the lens in the integrated G band from Gaia eDR3.magphot.mag;em.opt.Vfloatnullablelens_phot_rp_mean_magMean magnitude of the lens in the integrated RP band from Gaia eDR3.magphot.mag;em.opt.Rfloatnullablelens_phot_bp_mean_magMean magnitude of the lens in the integrated BP band from Gaia eDR3.magphot.mag;em.opt.Bfloatnullableob_idGaia eDR3 source_id of the lensed object.meta.idlongob_raGaia eDR3 RA of the lensed objectdegpos.eq.radoublenullableob_decGaia eDR3 Declination of the lensed objectdegpos.eq.decdoublenullableob_err_raError of ob__ra from Gaia eDR3masstat.error;pos.eq.rafloatnullableob_err_decError of ob__dec from Gaia eDR3masstat.error;pos.eq.decfloatnullableob_pmraProper motion in RA of the lensed object from Gaia eDR3mas/yrpos.pm;pos.eq.rafloatnullableob_pmdecProper motion in Declination of the lensed object from Gaia eDR3mas/yrpos.pm;pos.eq.rafloatnullableob_err_pmraError of ob_pmra from Gaia eDR3deg/yrpos.pm;pos.eq.rafloatnullableob_err_pmdecError of ob_pmdec from Gaia eDR3deg/yrpos.pm;pos.eq.decfloatnullableob_parallaxParallax of the lensed object from Gaia eDR3maspos.parallaxfloatnullableob_err_parallaxStandard error of the parallax the lensed object from Gaia eDR3masstat.error;pos.parallaxfloatnullableob_phot_g_mean_magMean magnitude of the lensed object in the integrated G band from Gaia eDR3.magphot.mag;em.opt.Vfloatnullableob_phot_rp_mean_magMean magnitude of the lensed object in the integrated RP band from Gaia eDR3.magphot.mag;em.opt.Rfloatnullableob_phot_bp_mean_magMean magnitude of the lensed object in the integrated BP band from Gaia eDR3.magphot.mag;em.opt.Bfloatnullableob_displacement_ra_doubledDoubled Displacement in RA between DR2 and DR3, cos(δ) applied.maspos.eq.ra;arith.difffloatnullableob_displacement_dec_doubledDoubled Displacement in Dec between DR2 and DR3maspos.eq.dec;arith.difffloatnullablestar_typeType of the lensing star: WD = White Dwarf, MS = Main Sequence, RG = Red Giant, BD = Brown Dwarfsrc.classcharnullablemassEstimated mass of the lens from Gaia eDR3solMassphys.massfloatnullableerr_massError in the mass of the lens from Gaia eDR3solMassstat.error;phys.massfloatnullabletheta_eEinstein radius of the eventmasphys.angsizedoublenullableerr_theta_eError in the Einstein radius of the eventmasstat.error;phys.angsizefloatnullablet_amlApproximate duration of the event (i.e., shift > ~0.1 mas).yrtime.durationdoublenullabletcaEstimated time of the closest approach.yrtime.epochdoublenullableerr_tcaError in tca.yrstat.error;time.epochfloatnullabledistEstimated distance at closest approach.maspos.angdistancefloatnullableerr_distError d_min.masstat.error;pos.angdistancefloatnullableuEstimated distance at closest approach in Einstein radii.pos.angdistance;stat.mindoublenullableu_error_mLeft 67% confidence interval of u.stat.error;pos.angdistance;stat.minfloatnullableu_error_pRight 67% confidence interval of u.stat.error;pos.angdistance;stat.minfloatnullableshiftMaximal astrometric shift of the center of light.maspos;arith.diffdoublenullableshift_error_mLeft 67% confidence interval of shift.masstat.error;pos;arith.difffloatnullableshift_error_pRight 67% confidence interval of shift.masstat.error;pos;arith.difffloatnullableshift_lumMaximal astrometric shift including lens-luminosity effects.maspos;arith.diffdoublenullableshift_lum_error_mLeft 67% confidence interval of shift_lum.masstat.error;pos;arith.difffloatnullableshift_lum_error_pRight 67% confidence interval of shift_lum.masstat.error;pos;arith.difffloatnullableshift_plusMaximal astrometric shift of brighter image.maspos;arith.diffdoublenullableshift_plus_error_mLeft 67% confidence interval of shift_plus.masstat.error;pos;arith.difffloatnullableshift_plus_error_pRight 67% confidence interval of shift_plus.masstat.error;pos;arith.difffloatnullablemagnificationMaximal magnification.magphot.mag;arith.ratiodoublenullablemagnification_error_mLeft 67% confidence interval of magnification.magstat.error;phot.mag;arith.ratiofloatnullablemagnification_error_pRight 67% confidence interval of magnification.magstat.error;phot.mag;arith.ratiofloatnullablel2_tcaEstimated time of the closest approachas seen from Earth-Sun L2 point.yrtime.epochdoublenullablel2_err_tcaError in l2_tca.yrstat.error;time.epochfloatnullablel2_distEstimated distance at closest approachas seen from Earth-Sun L2 point.maspos.angdistancefloatnullablel2_err_distError l2_d_min.masstat.error;pos.angdistancefloatnullablel2_uEstimated distance at closest approach in Einstein radiias seen from Earth-Sun L2 point.pos.angdistance;stat.mindoublenullablel2_u_error_mLeft 67% confidence interval of l2_u.stat.error;pos.angdistance;stat.minfloatnullablel2_u_error_pRight 67% confidence interval of l2_u.stat.error;pos.angdistance;stat.minfloatnullablel2_shiftMaximal astrometric shift of the center of lightas seen from Earth-Sun L2 point.maspos;arith.diffdoublenullablel2_shift_error_mLeft 67% confidence interval of l2_shift.masstat.error;pos;arith.difffloatnullablel2_shift_error_pRight 67% confidence interval of l2_shift.masstat.error;pos;arith.difffloatnullablel2_shift_lumMaximal astrometric shift including lens-luminosity effectsas seen from Earth-Sun L2 point.maspos;arith.diffdoublenullablel2_shift_lum_error_mLeft 67% confidence interval of l2_shift_lum.masstat.error;pos;arith.difffloatnullablel2_shift_lum_error_pRight 67% confidence interval of l2_shift_lum.masstat.error;pos;arith.difffloatnullablel2_shift_plusMaximal astrometric shift of brighter imageas seen from Earth-Sun L2 point.maspos;arith.diffdoublenullablel2_shift_plus_error_mLeft 67% confidence interval of l2_shift_plus.masstat.error;pos;arith.difffloatnullablel2_shift_plus_error_pRight 67% confidence interval of l2_shift_plus.masstat.error;pos;arith.difffloatnullablel2_magnificationMaximal magnificationas seen from Earth-Sun L2 point.magphot.mag;arith.ratiodoublenullablel2_magnification_error_mLeft 67% confidence interval of l2_magnification.magstat.error;phot.mag;arith.ratiofloatnullablel2_magnification_error_pRight 67% confidence interval of l2_magnification.magstat.error;phot.mag;arith.ratiofloatnullablet_0_1_masApproximate duration on which shift_plus changes by 0.1 mas from its maximumyrtime.durationfloatnullablet_50pcApproximate duration on which shift_plus changes by 50% from its maximumyrtime.durationfloatnullable