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Full orbital solution for the binary system in the northern Galactic disc microlensing event Gaia16aye

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dc.contributor.author Wyrzykowski
dc.contributor.author Mróz P.
dc.contributor.author Rybicki K.A.
dc.contributor.author Gromadzki M.
dc.contributor.author Kołaczkowski Z.
dc.contributor.author Zieliński M.
dc.contributor.author Zieliński P.
dc.contributor.author Britavskiy N.
dc.contributor.author Gomboc A.
dc.contributor.author Sokolovsky K.
dc.contributor.author Hodgkin S.T.
dc.contributor.author Abe L.
dc.contributor.author Aldi G.F.
dc.contributor.author Almannaei A.
dc.contributor.author Altavilla G.
dc.contributor.author Al Qasim A.
dc.contributor.author Anupama G.C.
dc.contributor.author Awiphan S.
dc.contributor.author Bachelet E.
dc.contributor.author Baklş V.
dc.contributor.author Baker S.
dc.contributor.author Bartlett S.
dc.contributor.author Bendjoya P.
dc.contributor.author Benson K.
dc.contributor.author Bikmaev I.F.
dc.contributor.author Birenbaum G.
dc.contributor.author Blagorodnova N.
dc.contributor.author Blanco-Cuaresma S.
dc.contributor.author Boeva S.
dc.contributor.author Bonanos A.Z.
dc.contributor.author Bozza V.
dc.contributor.author Bramich D.M.
dc.contributor.author Bruni I.
dc.contributor.author Burenin R.A.
dc.contributor.author Burgaz U.
dc.contributor.author Butterley T.
dc.contributor.author Caines H.E.
dc.contributor.author Caton D.B.
dc.contributor.author Calchi Novati S.
dc.contributor.author Carrasco J.M.
dc.contributor.author Cassan A.
dc.contributor.author Epas V.
dc.contributor.author Cropper M.
dc.contributor.author Chruślińska M.
dc.contributor.author Clementini G.
dc.contributor.author Clerici A.
dc.contributor.author Conti D.
dc.contributor.author Conti M.
dc.contributor.author Cross S.
dc.contributor.author Cusano F.
dc.contributor.author Damljanovic G.
dc.contributor.author Dapergolas A.
dc.contributor.author D'Ago G.
dc.contributor.author De Bruijne J.H.J.
dc.contributor.author Dennefeld M.
dc.contributor.author Dhillon V.S.
dc.contributor.author Dominik M.
dc.contributor.author Dziedzic J.
dc.contributor.author Erece O.
dc.contributor.author Eselevich M.V.
dc.contributor.author Esenoglu H.
dc.contributor.author Eyer L.
dc.contributor.author Figuera Jaimes R.
dc.contributor.author Fossey S.J.
dc.contributor.author Galeev A.I.
dc.contributor.author Grebenev S.A.
dc.contributor.author Gupta A.C.
dc.contributor.author Gutaev A.G.
dc.contributor.author Hallakoun N.
dc.contributor.author Hamanowicz A.
dc.contributor.author Han C.
dc.contributor.author Handzlik B.
dc.contributor.author Haislip J.B.
dc.contributor.author Hanlon L.
dc.contributor.author Hardy L.K.
dc.contributor.author Harrison D.L.
dc.contributor.author Van Heerden H.J.
dc.contributor.author Hoette V.L.
dc.contributor.author Horne K.
dc.contributor.author Hudec R.
dc.contributor.author Hundertmark M.
dc.contributor.author Ihanec N.
dc.contributor.author Irtuganov E.N.
dc.contributor.author Itoh R.
dc.contributor.author Iwanek P.
dc.contributor.author Jovanovic M.D.
dc.contributor.author Janulis R.
dc.contributor.author Jelínek M.
dc.contributor.author Jensen E.
dc.contributor.author Kaczmarek Z.
dc.contributor.author Katz D.
dc.contributor.author Khamitov I.M.
dc.contributor.author Kilic Y.
dc.contributor.author Klencki J.
dc.contributor.author Kolb U.
dc.contributor.author Kopacki G.
dc.contributor.author Kouprianov V.V.
dc.contributor.author Kruszyńska K.
dc.contributor.author Kurowski S.
dc.contributor.author Latev G.
dc.date.accessioned 2021-02-24T20:31:37Z
dc.date.available 2021-02-24T20:31:37Z
dc.date.issued 2020
dc.identifier.issn 0004-6361
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/160711
dc.description.abstract © ESO 2020. Gaia16aye was a binary microlensing event discovered in the direction towards the northern Galactic disc and was one of the first microlensing events detected and alerted to by the Gaia space mission. Its light curve exhibited five distinct brightening episodes, reaching up to I? =? 12 mag, and it was covered in great detail with almost 25 000 data points gathered by a network of telescopes. We present the photometric and spectroscopic follow-up covering 500 days of the event evolution. We employed a full Keplerian binary orbit microlensing model combined with the motion of Earth and Gaia around the Sun to reproduce the complex light curve. The photometric data allowed us to solve the microlensing event entirely and to derive the complete and unique set of orbital parameters of the binary lensing system. We also report on the detection of the first-ever microlensing space-parallax between the Earth and Gaia located at L2. The properties of the binary system were derived from microlensing parameters, and we found that the system is composed of two main-sequence stars with masses 0.57 ± 0.05 M? and 0.36 ± 0.03 M? at 780 pc, with an orbital period of 2.88 years and an eccentricity of 0.30. We also predict the astrometric microlensing signal for this binary lens as it will be seen by Gaia as well as the radial velocity curve for the binary system. Events such as Gaia16aye indicate the potential for the microlensing method of probing the mass function of dark objects, including black holes, in directions other than that of the Galactic bulge. This case also emphasises the importance of long-term time-domain coordinated observations that can be made with a network of heterogeneous telescopes.
dc.relation.ispartofseries Astronomy and Astrophysics
dc.subject Binaries: general
dc.subject Gravitational lensing: micro
dc.subject Stars: individual: Gaia16aye-L
dc.subject Techniques: photometric
dc.title Full orbital solution for the binary system in the northern Galactic disc microlensing event Gaia16aye
dc.type Review
dc.relation.ispartofseries-volume 633
dc.collection Публикации сотрудников КФУ
dc.source.id SCOPUS00046361-2020-633-SID85092688260

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  • Публикации сотрудников КФУ Scopus [24551]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

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