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AT2021uey: A planetary microlensing event outside the Galactic bulge
| Indexado |
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| DOI | 10.1051/0004-6361/202554236 | ||||
| Año | 2025 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
We report the analysis of a planetary microlensing event AT2021uey. The event was observed outside the Galactic bulge and alerted both space-(Gaia) and ground-based (ZTF and ASAS-SN) surveys. From the observed data, we find that the lens system is located at a distance of similar to 1 kpc and comprises an M-dwarf host star of about half a solar mass, orbited by a Jupiter-like planet beyond the snowline. The source star could be a metal-poor giant located in the halo according to the spectral analyses and modelling. Hence, AT2021uey is a unique example of the binary-lens event outside the bulge that is offered by a disc-halo lens-source combination.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Ban, M. | - | |
| 2 | Voloshyn, P. | - |
Taras Shevchenko Natl Univ Kyiv - Ucrania
Univ Paris Saclay - Francia Taras Shevchenko National University of Kyiv - Ucrania Universite Paris-Saclay - Francia |
| 3 | Adomaviciene, R. | - |
Vilnius Univ - Lituania
Teorinės Fizikos ir Astronomijos Institutas - Lituania |
| 4 | Bachelet, Etienne | Hombre |
CALTECH - Estados Unidos
Infrared Processing & Analysis Center - Estados Unidos |
| 5 | Bozza, Valerio | Hombre |
Univ Salerno - Italia
Ist Nazl Fis Nucl - Italia Università degli Studi di Salerno - Italia Istituto Nazionale di Fisica Nucleare, Sezione di Napoli - Italia |
| 6 | Brincat, Stephen M. | Hombre |
Flarestar Observ - Malta
|
| 7 | Bruni, I. | Hombre |
INAF - Italia
INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna - Italia |
| 8 | Burgaz, U. | - |
Trinity Coll Dublin - Irlanda
|
| 9 | Carrasco, J. M. | Hombre |
Univ Barcelona UB - España
Inst Estudis Espacials Catalunya IEEC - España Universitat de Barcelona - España Instituto de Estudios Espaciales de Cataluña - España |
| 10 | Cassan, Arnaud | - |
Sorbonne Univ - Francia
Institut d’Astrophysique de Paris - Francia |
| 11 | Epas, V. | - |
Vilnius Univ - Lituania
Teorinės Fizikos ir Astronomijos Institutas - Lituania |
| 12 | Cusano, Felice | Hombre |
INAF - Italia
INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna - Italia |
| 13 | De Laurentis, Mariafelicia | - |
Sorbonne Univ - Francia
Institut d’Astrophysique de Paris - Francia |
| 14 | Dominik, Martin | Hombre |
Univ St Andrews - Reino Unido
University of St Andrews - Reino Unido |
| 15 | Dubois, F. | Hombre |
Publ Observ Astrolab Iris - Bélgica
IRIS - Bélgica |
| 16 | Figuera Jaimes, R. | - |
Instituto Milenio de Astrofísica - Chile
Pontificia Universidad Católica de Chile - Chile |
| 17 | Fukui, Akihiko | Hombre |
Univ Tokyo - Japón
Inst Astrofis Canarias IAC - España The University of Tokyo - Japón Instituto Astrofisico de Canarias - España |
| 18 | Galdies, C. | - |
Univ Malta - Malta
Znith Astron Observ - Malta L-Università ta' Malta - Malta Znith Astronomy Observatory - Malta |
| 19 | Garofalo, Alessia | Mujer |
INAF - Italia
INAF Istituto di Astrofisica Spaziale e Fisica Cosmica, Bologna - Italia |
| 20 | Hundertmark, Markus | Hombre |
Heidelberg Univ - Alemania
Astronomisches Rechen-Institut - Alemania |
| 21 | Ilyin, I. | Hombre |
Leibniz Inst Astrophys Potsdam AIP - Alemania
Leibniz Institute for Astrophysics Potsdam - Alemania |
| 22 | Kruszyåska, K. | - |
Univ Warsaw - Polonia
Las Cumbres Observ - Estados Unidos University of Warsaw - Polonia Las Cumbres Observatory Global Telescope Network, Inc - Estados Unidos |
| 23 | Kulijanishvili, V. | - |
Evgeni Kharadze Georgian Natl Astrophys Observ - Georgia
Abastumani Astrophysical Observatory - Georgia |
| 24 | Kvernadze, T. | - |
Evgeni Kharadze Georgian Natl Astrophys Observ - Georgia
Abastumani Astrophysical Observatory - Georgia |
| 25 | Logie, L. | Hombre |
Publ Observ Astrolab Iris - Bélgica
IRIS - Bélgica |
| 26 | Maskoliunas, M. | - |
Vilnius Univ - Lituania
Teorinės Fizikos ir Astronomijos Institutas - Lituania |
| 27 | Mikolajczyk, P. J. | - |
Univ Warsaw - Polonia
Univ Wroclaw - Polonia University of Warsaw - Polonia |
| 28 | Mroz, Przemek | Hombre |
Univ Warsaw - Polonia
University of Warsaw - Polonia |
| 29 | Narita, Norio | Hombre |
Univ Tokyo - Japón
Inst Astrofis Canarias IAC - España Astrobiol Ctr - Japón The University of Tokyo - Japón Instituto Astrofisico de Canarias - España Astrobiology Center - Japón |
| 30 | Pakstiene, E. | - |
Teorinės Fizikos ir Astronomijos Institutas - Lituania
|
| 31 | Peloton, Julien | Hombre |
Univ Paris Saclay - Francia
Universite Paris-Saclay - Francia |
| 32 | Poleski, Radoslaw | Hombre |
Univ Warsaw - Polonia
University of Warsaw - Polonia |
| 33 | Qvam, J. K. T. | - |
Horten Videregaende Skole - Noruega
|
| 34 | Rau, S. | Hombre |
Publ Observ Astrolab Iris - Bélgica
IRIS - Bélgica |
| 35 | Rota, Paolo | - |
Univ Salerno - Italia
Ist Nazl Fis Nucl - Italia Università degli Studi di Salerno - Italia Istituto Nazionale di Fisica Nucleare, Sezione di Napoli - Italia |
| 36 | Rybicki, Krzysztof A. | Hombre |
Univ Warsaw - Polonia
Weizmann Inst Sci - Israel University of Warsaw - Polonia Weizmann Institute of Science Israel - Israel |
| 37 | Street, Rachel A. | Mujer |
Las Cumbres Observ - Estados Unidos
Las Cumbres Observatory Global Telescope Network, Inc - Estados Unidos |
| 38 | Tsapras, Yiannis | - |
Heidelberg Univ - Alemania
Astronomisches Rechen-Institut - Alemania |
| 39 | Vanaverbeke, S. | Hombre |
Publ Observ Astrolab Iris - Bélgica
IRIS - Bélgica |
| 40 | Wambsganss, J. | Hombre |
Heidelberg Univ - Alemania
Astronomisches Rechen-Institut - Alemania |
| 41 | Wyrzykowski, Łukasz | - |
Univ Warsaw - Polonia
Natl Ctr Nucl Res - Polonia |
| 41 | Wyrzykowski | - |
University of Warsaw - Polonia
National Centre for Nuclear Research (NCBJ) - Polonia |
| 42 | Zdanavičius, J. | - |
Vilnius Univ - Lituania
Teorinės Fizikos ir Astronomijos Institutas - Lituania |
| 43 | Zejmo, M. | - |
Univ Zielona Gora - Polonia
|
| 43 | Żejmo, M. | - |
Uniwersytet Zielonogórski - Polonia
|
| 44 | Zielinski, P. | - |
Nicolaus Copernicus Univ Torun - Polonia
Uniwersytet Mikołaja Kopernika w Toruniu - Polonia |
| 45 | Zola, Staszek | - |
Jagiellonian Univ - Polonia
Uniwersytet Jagiellonski - Polonia |
| Fuente |
|---|
| European Commission |
| European Union |
| European Regional Development Fund |
| Deutsche Forschungsgemeinschaft |
| JSPS KAKENHI |
| Research Council of Lithuania |
| DFG |
| Ohio State University |
| Core Research for Evolutional Science and Technology |
| Japan Society for the Promotion of Science |
| Narodowe Centrum Nauki |
| University of Arizona |
| University of Virginia |
| Max-Planck-Gesellschaft |
| University of Notre Dame |
| Centre National de la Recherche Scientifique |
| Horizon 2020 Framework Programme |
| University of Minnesota |
| Istituto Nazionale di Astrofisica |
| Maria de Maeztu |
| CNRS/IN2P3 |
| Lietuvos Mokslo Taryba |
| Instituto de Ciencias del Cosmos, Universitat de Barcelona |
| JST CREST |
| Institut National de Physique Nucléaire et de Physique des Particules |
| Institute of Cosmos Sciences University of Barcelona (ICCUB, Unidad de Excelencia 'Maria de Maeztu') |
| Agencia Nacional de Investigación y Desarrollo |
| Astrophysical Institute Potsdam, and Heidelberg University |
| Arizona university system |
| LBT Beteiligungsgesellschaft |
| Narodowa Agencja Wymiany Akademickiej |
| ANID's Millennium Science Initiative |
| Observatoire de Haute Provence |
| Ministerstwo Edukacji i Nauki |
| Spanish MICIN/AEI |
| Integrated Electronics Engineering Center, Binghamton University |
| Diabetes Patient Advocacy Coalition |
| HORIZON EUROPE Framework Programme |
| LSST-France |
| ANID's Basal |
| ACME |
| Endocrine Society of Australia |
| Program of the Polish Ministry of Science |
| Polish National Science Centre NCN grant DAINA |
| ERDF A way of making Europe by the "European Union" |
| Polish National Agency for Academic Exchange grant "Polish Returns 2019" |
| Kornel Howil and Maja Jablońska |
| Photometric Science Alerts Team19 |
| Agradecimiento |
|---|
| Work by Makiko Ban and Radoslaw Poleski was supported by Polish National Agency for Academic Exchange grant "Polish Returns 2019." This work was developed within the Fink community and made use of the Fink community broker resources. Julien Peloton thanks LSST-France and CNRS/IN2P3 for supporting Fink. We acknowledge ESA Gaia, DPAC and the Photometric Science Alerts Team19. Josep Manel Carrasco was (partially) supported by the Spanish MICIN/AEI/10.13039/501100011033 and by "ERDF A way of making Europe" by the "European Union" through grant PID2021122842OB-C21, and the Institute of Cosmos Sciences University of Barcelona (ICCUB, Unidad de Excelencia 'Maria de Maeztu') through grant CEX2019000918-M. The Joan Oro Telescope (TJO) of the Montsec Observatory (OdM) is owned by the Catalan Government and operated by the Institute for Space Studies of Catalonia (IEEC). Erika Pakstiene, Justas Zdanavicius, Marius Maskoliunas, Vytautas Cepas, Ruta Urbonaviciute, Edita Stonkute acknowledge the support of the observations at Moletai AO from the Research Council of Lithuania (grant No. S-LL-24-1). Work by Akihiko Fukui and Norio Narita was partly supported by JSPS KAKENHI Grant Number JP17H02871, JP17H04574, JP18H05439, and JST CREST Grant Number JPMJCR1761. Yiannis Tsapras acknowledges the support of DFG priority program SPP 1992 "Exploring the Diversity of Extrasolar Planets" (TS 356/3-1). The project is supported by the European Union's Horizon 2020 research and innovation program under grant agreement 101004719. We are grateful to Kornel Howil and Maja Jablonska who created a simulation code for a low blending microlensing event (so-called Dark Lens Code; Howil et al. 2025) and offered the code on our demand though we have not used it in final analysis. We acknowledge the support from the European Union's research and innovation programmes under grant agreements No. 101004719 (OPTICON-RadioNet Pilot, ORP) and No. 101131928 (ACME). We acknowledge the support from the Polish National Science Centre NCN grant DAINA No 2024/52/L/ST9/00210. This work was partially supported by a program of the Polish Ministry of Science under the title 'Regional Excellence Initiative', project no. RID/SP/0050/2024/1. Based on observations made at Observatoire de Haute Provence (CNRS), France, with MISTRAL on the T193 telescope. The LBT is an international collaboration among institutions in the United States, Italy and Germany. LBT Corporation partners are The University of Arizona on behalf of the Arizona university system; Istituto Nazionale di Astrofisica, Italy; LBT Beteiligungsgesellschaft, Germany, representing the Max-Planck Society, the Astrophysical Institute Potsdam, and Heidelberg University; The Ohio State University, and The Research Corporation, on behalf of The University of Notre Dame, University of Minnesota and the University of Virginia. This project used data obtained via BHTOM (https://bhtom.space), which has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreements No. 730890 (OPTICON) and 101004719 (ORP) and Horizon Europe programme No. 101131928 (ACME). R.F.J. acknowledges support for this project provided by ANID's Millennium Science Initiative through grant ICN12_009, awarded to the Millennium Institute of Astrophysics (MAS), and by ANID's Basal project FB210003. |
| Work by Makiko Ban and Radoslaw Poleski was sup ported by Polish National Agency for Academic Exchange grant \"Polish Returns 2019.\"This work was developed within the Fink community and made use of the Fink community broker resources. Julien Peloton thanks LSST-France and CNRS/IN2P3 for supporting Fink. We acknowledge ESA Gaia, DPAC and the Photometric Science Alerts Team19. Josep Manel Carrasco was (partially) supported by the Spanish MICIN/AEI/10.13039/501100011033 and by \"ERDF A way of making Europe\"by the \"European Union\"through grant PID2021 122842OB-C21, and the Institute of Cosmos Sciences University of Barcelona (ICCUB, Unidad de Excelencia 'Mar\u00EDa de Maeztu') through grant CEX2019 000918-M. The Joan Or\u00F3 Telescope (TJO) of the Montsec Observatory (OdM) is ownedbytheCatalanGovernmentandoperatedbytheInstitute for Space Studies of Catalonia (IEEC). Erika Pak\u0161tien\u0117, Justas Zdanavi\u010Dius, Marius Maskoli\u016Bnas, Vytautas \u010Cepas, R\u016Bta Urbonavi\u010Di\u016Bt\u0117, Edita Stonkut\u0117 acknowledge the support of the observations at Mol\u0117tai AO from the Research Council of Lithuania (grant No. S-LL-24-1). Work by Akihiko Fukui and Norio Narita was partly supported by JSPS KAKENHI Grant Number JP17H02871, JP17H04574, JP18H05439, and JST CREST Grant Number JPMJCR1761. Yiannis Tsapras acknowledges the support of DFG priority program SPP 1992 \"Exploring the Diversity of Extrasolar Planets\"(TS 356/3-1). The project is supported by the European Union's Horizon 2020 research and innovation program under grant agreement 101004719. We are grateful to Kornel Howil and Maja Jablo\u0144ska who created a simulation code for a low blending microlensing event (so-called Dark Lens Code; Howil et al. 2025) and offered the code on our demand though we have not used it in final analysis. We acknowledge the support from the European Union's research and innovation programmes under grant agreements No. 101004719 (OPTICON-RadioNet Pilot, ORP) and No. 101131928 (ACME). We acknowl edge the support from the Polish National Science Centre NCN grant DAINA No 2024/52/L/ST9/00210. This work was partially supported by a program of the Polish Ministry of Science under the title 'Regional Excellence Initiative', project no. RID/SP/0050/2024/1. Based on observations made at Observatoire de Haute Provence (CNRS), France, with MISTRAL on the T193 telescope. The LBT is an international collaboration among institutions in the United States, Italy and Germany. LBT Corporation partners are The Uni- versity of Arizona on behalf of the Arizona university system; Istituto Nazionale di Astrofisica, Italy; LBT Beteiligungsgesellschaft, Germany, representing the Max- Planck Society, the Astrophysical Institute Potsdam, and Heidelberg University; The Ohio State University, and The Research Corporation, on behalf of The Uni- versity of Notre Dame, University of Minnesota and the University of Virginia. This project used data obtained via BHTOM (https://bhtom.space), which has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreements No. 730890 (OPTICON) and 101004719 (ORP) and Horizon Europe programme No. 101131928 (ACME). R.F.J. acknowledges sup port for this project provided by ANID's Millennium Science Initiative through grant ICN12_009, awarded to the Millennium Institute of Astrophysics (MAS), and by ANID's Basal project FB210003. |
| Work by Makiko Ban and Rados\u0142aw Poleski was supported by Polish National Agency for Academic Exchange grant \u201CPolish Returns 2019.\u201D This work was developed within the Fink community and made use of the Fink community broker resources. Julien Peloton thanks LSST-France and CNRS/IN2P3 for supporting Fink. We acknowledge ESA Gaia, DPAC and the Photometric Science Alerts Team19. Josep Manel Carrasco was (partially) supported by the Spanish MICIN/AEI/10.13039/501100011033 and by \u201CERDF A way of making Europe\u201D by the \u201CEuropean Union\u201D through grant PID2021-122842OB-C21, and the Institute of Cosmos Sciences University of Barcelona (ICCUB, Unidad de Excelencia \u2018Mar\u00EDa de Maeztu\u2019) through grant CEX2019-000918-M. The Joan Or\u00F3 Telescope (TJO) of the Montsec Observatory (OdM) is owned by the Catalan Government and operated by the Institute for Space Studies of Catalonia (IEEC). Erika Paks\u0306tien\u0117, Justas Zdanavic\u0306ius, Marius Maskoli\u016Bnas, Vytautas C\u0306epas, R\u016Bta Urbonavic\u0306i\u016Bt\u0117, Edita Stonkute acknowledge the support of the observations at Moletai AO from the Research Council of Lithuania (grant No. S-LL-24-1). Work by Akihiko Fukui and Norio Narita was partly supported by JSPS KAKENHI Grant Number JP17H02871, JP17H04574, JP18H05439, and JST CREST Grant Number JPMJCR1761. Yiannis Tsapras acknowledges the support of DFG priority program SPP 1992 \u201CExploring the Diversity of Extrasolar Planets\u201D (TS 356/3-1). The project is supported by the European Union\u2019s Horizon 2020 research and innovation program under grant agreement 101004719. We are grateful to Kornel Howil and Maja Jab\u0142o\u0144ska who created a simulation code for a low blending microlensing event (so-called Dark Lens Code; Howil et al. 2025) and offered the code on our demand though we have not used it in final analysis. We acknowledge the support from the European Union\u2019s research and innovation programmes under grant agreements No. 101004719 (OPTICON-RadioNet Pilot, ORP) and No. 101131928 (ACME). We acknowledge the support from the Polish National Science Centre NCN grant DAINA No 2024/52/L/ST9/00210. This work was partially supported by a program of the Polish Ministry of Science under the title \u2018Regional Excellence Initiative\u2019, project no. RID/SP/0050/2024/1. Based on observations made at Observatoire de Haute Provence (CNRS), France, with MISTRAL on the T193 telescope. The LBT is an international collaboration among institutions in the United States, Italy and Germany. LBT Corporation partners are The Uni- versity of Arizona on behalf of the Arizona university system; Istituto Nazionale di Astrofisica, Italy; LBT Beteiligungsgesellschaft, Germany, representing the Max- Planck Society, the Astrophysical Institute Potsdam, and Heidelberg University; The Ohio State University, and The Research Corporation, on behalf of The Uni- versity of Notre Dame, University of Minnesota and the University of Virginia. This project used data obtained via BHTOM ( https://bhtom.space ), which has received funding from the European Union\u2019s Horizon 2020 research and innovation programme under grant agreements No. 730890 (OPTICON) and 101004719 (ORP) and Horizon Europe programme No. 101131928 (ACME). R.F.J. acknowledges support for this project provided by ANID\u2019s Millennium Science Initiative through grant ICN12_009, awarded to the Millennium Institute of Astrophysics (MAS), and by ANID\u2019s Basal project FB210003. |
