Lens Mass Estimate in the Galactic Disk Extreme Parallax Microlensing Event Gaia19dke

• Autorzy: Maskoliūnas, M. , Wyrzykowski, Ł. , Howil, K. , Mikołajczyk, P. J. , Zieliński, P. , Kaczmarek, Z. , Kruszyńska, K. , Jabłońska, M. , Zdanavičius, J. , Pakštienė, E. , Čepas, V. , Rybicki, K. A. , Janulis, R. , Stonkutė, E. , Gromadzki, M. , Ihanec, N. , Adomavičienė, R. , Šiškauskaitė, K. , Bronikowski, M. , Sivak, P. , Stankevičiūtė, A. , Sitek, M. , Ratajczak, M. , Pylypenko, U. , Gezer, I. , Awiphan, S. , Bachelet, E. , Bąkowska, K. , Boyle, R. P. , Bozza, V. , Brincat, S. M. , Burgaz, U. , Butterley, T. , Carrasco, J. M. , Cassan, A. , Cusano, F. , Damljanovic, G. , Davidson, J. W. , Dhillon, V. S. , Dominik, M. , Dubois, F. , Esenoglu, H. H. , Figuera Jaimes, R. , Fukui, A. , Galdies, C. , Garofalo, A. , Godunova, V. , Güver, T. , Hansdorfer, F. , Heidt, J. , Hundertmark, M. , Izviekova, I. , Joachimczyk, B. , Kamińska, M. K. , Kamiński, K. , Kaptan, S. , Kvernadze, T. , Kvaratskhelia, O. , Kotysz, K. , Littlefair, S. , Michniewicz, O. , Nakhatutai, N. , Ogłoza, W. , Ohsawa, R. , Olszewska, J. M. , Poleski, R. , Polińska, M. , Popowicz, A. , Qvam, J. K. T. , Radziwonowicz, M , Reichart, D. E. , Słowikowska, A. , Simon, A. , Sonbas, E. , Stojanovic, M. , Szkudlarek, M. , Tsapras, Y. , Vanaverbeke, S. , Wilson, R. W. , Zola, S.
• Języki publikacji: EN

Abstrakty

EN

We present the results of our analysis of Gaia19dke, an extraordinary microlensing event in the Cygnus constellation that the Gaia satellite discovered. This event featured a strong microlensing parallax effect, resulting in multiple light curve peaks. We conducted extensive photometric, spectroscopic, and high-resolution imaging follow-up observations to determine the mass and nature of the invisible lensing object. Using the Milky Way priors on the density and proper motion of lenses, we found that the lens is likely to be located at a distance of D_L=3.3^+2.1_-1.7 kpc, and has a mass of M_L=0.50^+0.82_-0.27 M_☉. Based on its low luminosity and mass, we propose that the lens in the Gaia19dke event is either a main sequence star or an isolated white dwarf. Due to its brightness, longevity, and lack of blending, Gaia19dke is a target for which the forthcoming Gaia Data Release 4 data will help to constrain the parameters of the lens.

Słowa kluczowe

EN

gravitational lensing: micro; stars: fundamental parameters; white dwarfs

• Czasopismo: Acta Astronomica
• Rocznik: 2024
• Tom: Vol. 74, No. 2
• Strony: 77--111
• Opis fizyczny: Bibliogr. 92 poz., tab., wykr.

Twórcy

autor

Maskoliūnas, M.

• Institute of Theoretical Physics and Astronomy, Vilnius University, Saulėtekio Av. 3, 10257 Vilnius, Lithuania

autor

Wyrzykowski, Ł.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Howil, K.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
• Faculty of Mathematics and Computer Science, Jagiellonian University, Łojasiewicza 6, 30-348 Kraków, Poland

autor

Mikołajczyk, P. J.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
• Astronomical Institute, University of Wrocław, Kopernika 11, 51-622 Wrocław, Poland

autor

Zieliński, P.

• Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziądzka 5, 87-100 Toruń, Poland

autor

Kaczmarek, Z.

• Institute of Astronomy, University of Cambridge, Madingley Road, CB3 0HA Cambridge, UK
• Zentrum für Astronomie der Universität Heidelberg, Astronomisches Rechen-Institut, Mönchhofstr. 12-14, 69120 Heidelberg, Germany

autor

Kruszyńska, K.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
• Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA

autor

Jabłońska, M.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
• Research School of Astronomy and Astrophysics, Australian National University, Mount Stromlo Observatory, Cotter Road Weston Creek, ACT 2611, Australia

autor

Zdanavičius, J.

• Institute of Theoretical Physics and Astronomy, Vilnius University, Saulėtekio Av. 3, 10257 Vilnius, Lithuania

autor

Pakštienė, E.

• Institute of Theoretical Physics and Astronomy, Vilnius University, Saulėtekio Av. 3, 10257 Vilnius, Lithuania

autor

Čepas, V.

• Institute of Theoretical Physics and Astronomy, Vilnius University, Saulėtekio Av. 3, 10257 Vilnius, Lithuania

autor

Rybicki, K. A.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
• Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 76100, Israel

autor

Janulis, R.

• Institute of Theoretical Physics and Astronomy, Vilnius University, Saulėtekio Av. 3, 10257 Vilnius, Lithuania

autor

Stonkutė, E.

• Institute of Theoretical Physics and Astronomy, Vilnius University, Saulėtekio Av. 3, 10257 Vilnius, Lithuania

autor

Gromadzki, M.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Ihanec, N.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Adomavičienė, R.

• Institute of Theoretical Physics and Astronomy, Vilnius University, Saulėtekio Av. 3, 10257 Vilnius, Lithuania

autor

Šiškauskaitė, K.

• Institute of Theoretical Physics and Astronomy, Vilnius University, Saulėtekio Av. 3, 10257 Vilnius, Lithuania

autor

Bronikowski, M.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
• Center for Astrophysics and Cosmology, University of Nova Gorica, Vipavska 11c, 5270 Ajdovščina, Slovenia

autor

Sivak, P.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Stankevičiūtė, A.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Sitek, M.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Ratajczak, M.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Pylypenko, U.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Gezer, I.

• Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, H-1121 Budapest, Konkoly Thegeut 15–17, Hungary

autor

Awiphan, S.

• National Astronomical Research Institute of Thailand (Public Organization), 260 Moo 4, Donkaew, Mae Rim, Chiang Mai 50180, Thailand

autor

Bachelet, E.

• IPAC, Mail Code 100-22, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA

autor

Bąkowska, K.

• Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziądzka 5, 87-100 Toruń, Poland

autor

Boyle, R. P.

• Vatican Observatory Research Group, Steward Observatory, Tucson, AZ 85721, USA

autor

Bozza, V.

• Dipartimento di Fisica 'E.R. Caianiello', Università di Salerno, Via Giovanni Paolo II 132, Fisciano 84084, Italy
• INFN, Sezione di Napoli, Via Cintia, Napoli 80126, Italy

autor

Brincat, S. M.

• Flarestar Obsevatory, Fl.5 Ent.B, Silver Jubilee Apt, George Tayar Street, San Gwann, SGN 3160, Malta

autor

Burgaz, U.

• School of Physics, Trinity College Dublin, College Green, Dublin 2, Ireland

autor

Butterley, T.

• Centre for Advanced Instrumentation, Durham University, UK

autor

Carrasco, J. M.

• Institut de Ciéncies del Cosmos (ICCUB), Universitat de Barcelona (UB), Martì i Franqués 1, E-08028 Barcelona, Spain
• Departament de Fisica Quántica i Astrofísica (FQA), Universitat de Barcelona (UB), Martí i Franqués 1, E-08028 Barcelona, Spain
• Institut d'Estudis Espacials de Catalunya (IEEC), c. Gran Capitá, 2-4, E-08034 Barcelona, Spain

autor

Cassan, A.

• Institut d'Astrophysique de Paris, Sorbonne Université, CNRS, UMR 7095, 98 bis bd Arago, F-75014 Paris, France

autor

Cusano, F.

• INAF-Osservatorio di Astrofisica e Scienza dello Spazio, Via Gobetti $93/3$, I-40129 Bologna, Italy

autor

Damljanovic, G.

• Astronomical Observatory, Volgina 7, 11060 Belgrade, Serbia

autor

Davidson, J. W.

• Department of Astronomy, University of Virginia, 530 McCormick Rd. Charlottesville, VA 22904, USA

autor

Dhillon, V. S.

• Astrophysics Research Cluster, School of Mathematical and Physical Sciences, University of Sheffield, Sheffield, S3 7RH, UK
• Instituto de Astrofísica de Canarias, E-38205 La Laguna, Tenerife, Spain

autor

Dominik, M.

• University of St Andrews, Centre for Exoplanet Science, SUPA School of Physics \& Astronomy, North Haugh, St Andrews, KY16 9SS, United Kingdom

autor

Dubois, F.

• Public observatory Astrolab IRIS, Verbrandemolenstraat 5 , 8901 Zillebeke, Belgium
• Vereniging Voor Sterrenkunde (VVS), Oostmeers 122 C, 8000 Brugge, Belgium

autor

Esenoglu, H. H.

• Istanbul University, Faculty of Science, Department of Astronomy and Spaces Sciences, 34119, Istanbul Türkiye

autor

Figuera Jaimes, R.

• Millennium Institute of Astrophysics MAS, Nuncio Monsenor Sotero Sanz 100, Of. 104, Providencia, Santiago, Chile
• Instituto de Astrofísica, Facultad de Física, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile

autor

Fukui, A.

• Komaba Institute for Science, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, Japan

autor

Galdies, C.

• Institute of Earth Systems, University of Malta

autor

Garofalo, A.

• INAF-Osservatorio di Astrofisica e Scienza dello Spazio, Via Gobetti $93/3$, I-40129 Bologna, Italy

autor

Godunova, V.

• ICAMER Observatory, National Academy of Sciences of Ukraine, 27 Acad. Zabolotnoho Str., 03143 Kyiv, Ukraine

autor

Güver, T.

• Istanbul University, Faculty of Science, Department of Astronomy and Spaces Sciences, 34119, Istanbul Türkiye
• Istanbul University Observatory Research and Application Center, Istanbul University 34119, Istanbul Türkiye

autor

Hansdorfer, F.

• XIV Liceum Ogólnokształcące im. Stanisława Staszica, ul. Nowowiejska 37A, 02-010 Warszawa, Poland
• Polish Children's Fund, Pasteura 7, 02-093 Warsaw, Poland

autor

Heidt, J.

• Landessternwarte, Zentrum fur Astronomie der Universitat Heidelberg, Konigstuhl 12, 69117 Heidelberg, Germany

autor

Hundertmark, M.

• Zentrum für Astronomie der Universität Heidelberg, Astronomisches Rechen-Institut, Mönchhofstr. 12-14, 69120 Heidelberg, Germany

autor

Izviekova, I.

• ICAMER Observatory, National Academy of Sciences of Ukraine, 27 Acad. Zabolotnoho Str., 03143 Kyiv, Ukraine
• Main Astronomical Observatory of the NAS of Ukraine, 27, Akademik Zabolotny St., Kyiv, 03143, Ukraine

autor

Joachimczyk, B.

• Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziądzka 5, 87-100 Toruń, Poland

autor

Kamińska, M. K.

• Astronomical Observatory Institute, Faculty of Physics and Astronomy, Adam Mickiewicz University, ul. Słoneczna 36, 60-286 Poznań, Poland

autor

Kamiński, K.

• Astronomical Observatory Institute, Faculty of Physics and Astronomy, Adam Mickiewicz University, ul. Słoneczna 36, 60-286 Poznań, Poland

autor

Kaptan, S.

• Istanbul University, Faculty of Science, Department of Astronomy and Spaces Sciences, 34119, Istanbul Türkiye
• Istanbul University Observatory Research and Application Center, Istanbul University 34119, Istanbul Türkiye

autor

Kvernadze, T.

• Evgeni Kharadze Georgian National Astrophysical Observatory, Abastumani, Georgia

autor

Kvaratskhelia, O.

• Evgeni Kharadze Georgian National Astrophysical Observatory, Abastumani, Georgia

autor

Kotysz, K.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland
• Astronomical Institute, University of Wrocław, Kopernika 11, 51-622 Wrocław, Poland

autor

Littlefair, S.

• Astrophysics Research Cluster, School of Mathematical and Physical Sciences, University of Sheffield, Sheffield, S3 7RH, UK

autor

Michniewicz, O.

• Janusz Gil Institute of Astronomy, University of Zielona Gora, Szafrana 2, 65–516 Zielona Gora, Poland

autor

Nakhatutai, N.

• Data Science Research Center, Department of Statistics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand

autor

Ogłoza, W.

• University of National Education Commission, Podchorążych 2, 30-084 Kraków, Poland

autor

Ohsawa, R.

• National Astronomical Observatory of Japan, National Institutes of Natural Science, Osawa, Mitaka, Tokyo, Japan 181-8588

autor

Olszewska, J. M.

• Astronomical Observatory Institute, Faculty of Physics and Astronomy, Adam Mickiewicz University, ul. Słoneczna 36, 60-286 Poznań, Poland

autor

Poleski, R.

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Polińska, M.

• Astronomical Observatory Institute, Faculty of Physics and Astronomy, Adam Mickiewicz University, ul. Słoneczna 36, 60-286 Poznań, Poland

autor

Popowicz, A.

• Faculty of Automatic Control, Electronics and Computer Science, Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland

autor

Qvam, J. K. T.

• Horten Videregaende Skole, Strandpromenaden 33, 3183 Horten, Norway

autor

Radziwonowicz, M

• Astronomical Observatory, University of Warsaw, Al. Ujazdowskie 4, 00-478 Warszawa, Poland

autor

Reichart, D. E.

• Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA

autor

Słowikowska, A.

• Joint Institute for VLBI ERIC, Oude Hoogevceensedijk 4, NL-7991 PD Dwingeloo, the Netherlands
• Institute of Astronomy, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziądzka 5, 87-100 Toruń, Poland

autor

Simon, A.

• Astronomy and Space Physics Department, Taras Shevchenko National University of Kyiv, 4, Glushkova ave., Kyiv, 03022, Ukraine
• National Center, Junior Academy of Sciences of Ukraine, 38-44, Dehtiarivska St., Kyiv, 04119, Ukraine

autor

Sonbas, E.

• Department of Physics, Adıyaman University, Adıyaman 02040, Türkiye
• Astrophysics Application and Research Center, Adıyaman University, Adıyaman 02040, Türkiye

autor

Stojanovic, M.

• Astronomical Observatory, Volgina 7, 11060 Belgrade, Serbia

autor

Szkudlarek, M.

• Janusz Gil Institute of Astronomy, University of Zielona Gora, Szafrana 2, 65–516 Zielona Gora, Poland

autor

Tsapras, Y.

• Zentrum für Astronomie der Universität Heidelberg, Astronomisches Rechen-Institut, Mönchhofstr. 12-14, 69120 Heidelberg, Germany

autor

Vanaverbeke, S.

• Public observatory Astrolab IRIS, Verbrandemolenstraat 5 , 8901 Zillebeke, Belgium
• Vereniging Voor Sterrenkunde (VVS), Oostmeers 122 C, 8000 Brugge, Belgium

autor

Wilson, R. W.

• Centre for Advanced Instrumentation, Durham University, UK

autor

Zola, S.

• Astronomical Observatory, Jagiellonian University, Orla 171, 30-244 Kraków, Poland

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Identyfikatory

DOI

10.32023/0001-5237/74.2.1