am lensing 2ivo://org.gavo.dc/amlensing/q2/qThe GAVO DC teamKlüter, J.Demleitner, M.Proft, S.2018-10-22T00:00:00ZGAVO Data Centre Team

Mönchhofstrasse 12-14, D-69120 Heidelberg

gavo@ari.uni-heidelberg.de+49 6221 54 1837catalogsastrometric-microlensing-effect From the Gaia DR2 catalogue we predict astrometric microlensing events by foreground stars with high proper motion (µ_tot >150mas/yr) passing a background source in the next decades. Using Gaia DR2 photometry we determine an approximate mass of the lens, which we use to calculate the expected microlensing effects. This yields 3914 microlensing events by 2875 different lenses between 2010 and 2065 with expected shifts larger than 0.1 mas between the lensed and unlensed positions of the source. 513 of those are expected to happen between 2014.5 - 2026.5 and might be measured by Gaia. For 127 events we also expect a magnification between 1 mmag and 3 mag.2018A&A...620A.175Khttp://dc.g-vo.org/amlensing/q2/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/q2/q/formhttps://dc.g-vo.org/amlensing/q2/q/formhttp://dc.g-vo.org/amlensing/q2/q/scs.xml?https://dc.g-vo.org/amlensing/q2/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 DR2.magphot.mag;em.opt.Vrealob_phot_g_mean_magMean magnitude of the lensed object in the integrated G band from Gaia DR2.magphot.mag;em.opt.VrealtcaEstimated time of the closest approach.yrtime.epochrealdistEstimated distance at closest approach.maspos.angdistancerealresponseformatFile 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/q2/q/capabilitieshttps://dc.g-vo.org/amlensing/q2/q/capabilitieshttp://dc.g-vo.org/amlensing/q2/q/availabilityhttps://dc.g-vo.org/amlensing/q2/q/availabilityhttp://dc.g-vo.org/amlensing/q2/q/tableMetadatahttps://dc.g-vo.org/amlensing/q2/q/tableMetadatahttp://dc.g-vo.org/taphttps://dc.g-vo.org/tapGaiaOpticalplc2 From the Gaia DR2 catalogue we predict astrometric microlensing events by foreground stars with high proper motion (µ_tot >150mas/yr) passing a background source in the next decades. Using Gaia DR2 photometry we determine an approximate mass of the lens, which we use to calculate the expected microlensing effects. This yields 3914 microlensing events by 2875 different lenses between 2010 and 2065 with expected shifts larger than 0.1 mas between the lensed and unlensed positions of the source. 513 of those are expected to happen between 2014.5 - 2026.5 and might be measured by Gaia. For 127 events we also expect a magnification between 1 mmag and 3 mag.plc2.dataThe final candidate table for astrometric microlensing events predicted from Gaia DR2. 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.3914event_idUnique identifier of this event. This is the decimal representation of the Gaia DR2 source_id of the lens, and a disambiguator for the lensed object.meta.id;meta.maincharindexedprimarylens_idGaia DR2 source_id of the lens.meta.id225799530407285764.170184671489307e+174.524048089080652e+186.657800844699378e+1869166447797744936961.0longlens_raGaia DR2 RA of the lensdegpos.eq.ra;meta.main0.54830726.5858248.251335.035359.9731doubleindexednullablelens_decGaia DR2 Declication of the lensdegpos.eq.dec;meta.main-88.0806-70.1382-27.896961.732884.33381doubleindexednullablelens_err_raError of lens__ra from Gaia DR2degstat.error;pos.eq.ra;meta.main3.26422e-095.27607e-091.47986e-081.68696e-077.85181e-071floatnullablelens_err_decError of lens__dec from Gaia DR2degstat.error;pos.eq.dec;meta.main3.16569e-095.62946e-091.34019e-081.71019e-075.04639e-071floatnullablelens_pmraProper motion in RA of the lens from Gaia DR2deg/yrpos.pm;pos.eq.ra-0.00105036-0.000451125-2.34289e-050.0005414360.001803191floatnullablelens_pmdecProper motion in Declination of the lens from Gaia DR2deg/yrpos.pm;pos.eq.ra-0.00161607-0.000370206-4.58556e-050.0003663380.002878471floatnullablelens_err_pmraError of lens_pmra from Gaia DR2deg/yrpos.pm;pos.eq.ra6.50797e-091.10549e-082.84367e-083.70681e-071.07382e-061floatnullablelens_err_pmdecError of lens_pmdec from Gaia DR2deg/yrpos.pm;pos.eq.dec5.33081e-091.11704e-082.61823e-083.34841e-079.10603e-071floatnullablelens_parallaxParallax of the lens from Gaia DR2degpos.parallax4.82628e-071.23813e-066.75017e-060.000152070.0002134721floatnullablelens_err_parallaxStandard error of the parallax the lens from Gaia DR2degstat.error;pos.parallax3.93094e-097.284e-091.77209e-082.08635e-077.63231e-071floatnullablelens_phot_g_mean_magMean magnitude of the lens in the integrated G band from Gaia DR2.magphot.mag;em.opt.V2.655925.3827312.755719.424420.71081floatnullablelens_phot_rp_mean_magMean magnitude of the lens in the integrated RP band from Gaia DR2.magphot.mag;em.opt.R2.431954.5875911.587418.19419.91550.978794floatnullablelens_phot_bp_mean_magMean magnitude of the lens in the integrated BP band from Gaia DR2.magphot.mag;em.opt.B3.667645.8326813.865819.94222.18110.978539floatnullableob_idGaia DR2 source_id of the lensed object.meta.id225799487457216004.170196195730165e+174.5240480890788644e+186.657800847317848e+1869166447840705996801.0longob_raGaia DR2 RA of the lensed objectdegpos.eq.ra0.55214726.5862248.244335.033359.9721doublenullableob_decGaia DR2 Declication of the lensed objectdegpos.eq.dec-88.0796-70.1323-27.897161.724584.33361doublenullableob_err_raError of ob__ra from Gaia DR2degstat.error;pos.eq.ra2.395e-099.33263e-091.271e-071.36619e-062.75684e-061floatnullableob_err_decError of ob__dec from Gaia DR2degstat.error;pos.eq.dec3.26394e-099.87225e-091.20198e-071.2051e-062.60586e-061floatnullableob_pmraProper motion in RA of the lensed object from Gaia DR2deg/yrpos.pm;pos.eq.ra-8.21525e-06-3.34887e-06-7.64003e-071.75717e-062.09543e-050.729177floatnullableob_pmdecProper motion in Declination of the lensed object from Gaia DR2deg/yrpos.pm;pos.eq.ra-2.84144e-05-3.5915e-06-7.80647e-071.74456e-061.12712e-050.729177floatnullableob_err_pmraError of ob_pmra from Gaia DR2deg/yrpos.pm;pos.eq.ra5.03869e-091.63113e-081.72199e-078.12211e-071.37284e-060.729177floatnullableob_err_pmdecError of ob_pmdec from Gaia DR2deg/yrpos.pm;pos.eq.dec6.76228e-091.57175e-081.64055e-077.67711e-071.30854e-060.729177floatnullableob_parallaxParallax of the lensed object from Gaia DR2degpos.parallax-1.42986e-06-3.69772e-078.65674e-086.50024e-073.08697e-060.729177floatnullableob_err_parallaxStandard error of the parallax the lensed object from Gaia DR2degstat.error;pos.parallax3.77422e-091.06159e-081.08427e-074.46462e-071.03184e-060.729177floatnullableob_phot_g_mean_magMean magnitude of the lensed object in the integrated G band from Gaia DR2.magphot.mag;em.opt.V3.3952513.121619.337520.969721.33561floatnullableob_phot_rp_mean_magMean magnitude of the lensed object in the integrated RP band from Gaia DR2.magphot.mag;em.opt.R2.8196913.191218.036819.719720.47510.731477floatnullableob_phot_bp_mean_magMean magnitude of the lensed object in the integrated BP band from Gaia DR2.magphot.mag;em.opt.B4.1946614.725519.520221.294123.080.730199floatnullablestar_typeType of the lensing star: WD = White Dwarf, MS = Main Sequence, RG = Red Giant, BD = Brown Dwarfsrc.classcharnullablemassEstimated mass of the lens from Gaia DR2solMassphys.mass0.070.08194090.418691.148722.075721floatnullableerr_massError in the mass of the lens from Gaia DR2solMassstat.error;phys.mass0.007152850.01164650.0418690.150.51floatnullabletheta_eEinstein radius of the eventmasphys.angsize1.338233.158739.2560332.254639.31641doublenullableerr_theta_eError in the Einstein radius of the eventmasstat.error;phys.angsize0.1419620.1817240.5319141.964674.041471floatnullabletime_scaleApproximate duration of the eventyrtime.duration0.109410.4656563.2832115.525943.72370.98186doublenullabletcaEstimated time of the closest approach.yrtime.epoch2009.792012.352043.562064.682068.281doublenullableerr_tcaError in tca.yrstat.error;time.epoch0.0001551080.001681380.07975071.671933.111961floatnullabledistEstimated distance at closest approach.maspos.angdistance0.066591311.7639359.584668.886803.521floatnullableerr_distError d_min.masstat.error;pos.angdistance0.2354462.1779829.2177437.186646.6361floatnullableuEstimated distance at closest approach in Einstein radii.0.004003592.1754141.6963170.28246.4131doublenullableerr_uError in u.0.2503471.005896.1008356.3488178.5591floatnullableshiftMaximal astrometric shift of the center of light.maspos;arith.diff0.100050.103730.2059072.221858.966591doublenullableerr_shiftError in shiftmasstat.error;pos;arith.diff0.007083840.007949440.03708484.329852545.551floatnullableshift_lumMaximal astrometric shift including lens-luminosity effects.maspos;arith.diff5.08683e-088.24668e-070.001164050.2363542.172421doublenullableerr_shift_lumError in shift_lum.masstat.error;pos;arith.diff3.81168e-097.05359e-080.000244870.24555631.1871floatnullableshift_plusMaximal astrometric shift of brighter image.maspos;arith.diff0.1001180.1037420.2059732.9655318.31541doublenullableerr_shift_plusError in shift_plus.masstat.error;pos;arith.diff0.007084270.007951760.03721585.88048210.3461floatnullablemagnificationMaximal magnification.magphot.mag;arith.ratio4.82164e-163.17698e-146.04644e-090.001078133.148881doublenullableerr_magnificationError in magnification.magstat.error;phot.mag;arith.ratio1.5662e-168.18147e-153.65579e-090.00797008377.5951floatnullablel2_tcaEstimated time of the closest approachas seen from Earth-Sun L2 point.yrtime.epoch2009.792012.352043.572064.682068.281doublenullablel2_err_tcaError in l2_tca.yrstat.error;time.epoch0.0001558890.001683770.07993441.671953.111951floatnullablel2_distEstimated distance at closest approachas seen from Earth-Sun L2 point.maspos.angdistance0.0018486411.7662359.4724666.816803.031floatnullablel2_err_distError l2_d_min.masstat.error;pos.angdistance0.2355062.1812729.2239437.6651.011floatnullablel2_uEstimated distance at closest approach in Einstein radiias seen from Earth-Sun L2 point.0.0002600742.190141.6752170.195246.3511doublenullablel2_err_uError in l2_u.0.2513551.01296.1016156.3487178.5591floatnullablel2_shiftMaximal astrometric shift of the center of lightas seen from Earth-Sun L2 point.maspos;arith.diff0.100050.1037570.2059542.223238.851581doublenullablel2_err_shiftError in l2_shiftmasstat.error;pos;arith.diff0.007084290.007953810.03712644.2150317706.41floatnullablel2_shift_lumMaximal astrometric shift including lens-luminosity effectsas seen from Earth-Sun L2 point.maspos;arith.diff5.08895e-088.24872e-070.001164420.235952.172421doublenullablel2_err_shift_lumError in l2_shift_lum.masstat.error;pos;arith.diff3.81396e-097.05517e-080.0002452210.25003331.27211floatnullablel2_shift_plusMaximal astrometric shift of brighter imageas seen from Earth-Sun L2 point.maspos;arith.diff0.1001180.1037980.206022.963918.10811doublenullablel2_err_shift_plusError in l2_shift_plus.masstat.error;pos;arith.diff0.007084720.007956140.03727015.92609209.8681floatnullablel2_magnificationMaximal magnificationas seen from Earth-Sun L2 point.magphot.mag;arith.ratio4.82164e-163.17698e-146.03769e-090.00107154.15831doublenullablel2_err_magnificationError in l2_magnification.magstat.error;phot.mag;arith.ratio1.56681e-168.19186e-153.66356e-090.007723317485.561floatnullable