Dark lens candidates from Gaia Data Release 3

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dc.citation.issueDecember 2024
dc.citation.volume692
dc.contributor.authorKruszyńska K
dc.contributor.authorWyrzykowski L
dc.contributor.authorRybicki KA
dc.contributor.authorHowil K
dc.contributor.authorJablońska M
dc.contributor.authorKaczmarek Z
dc.contributor.authorIhanec N
dc.contributor.authorMaskoliūnas M
dc.contributor.authorBronikowski M
dc.contributor.authorPylypenko U
dc.contributor.authorUdalski A
dc.contributor.authorMróz P
dc.contributor.authorPoleski R
dc.contributor.authorSkowron J
dc.contributor.authorSzymański MK
dc.contributor.authorSoszyński I
dc.contributor.authorPietrukowicz P
dc.contributor.authorKozlowski S
dc.contributor.authorUlaczyk K
dc.contributor.authorIwanek P
dc.contributor.authorWrona M
dc.contributor.authorGromadzki M
dc.contributor.authorMróz MJ
dc.contributor.authorAbe F
dc.contributor.authorBando K
dc.contributor.authorBarry R
dc.contributor.authorBennett DP
dc.contributor.authorBhattacharya A
dc.contributor.authorBond IA
dc.contributor.authorFukui A
dc.contributor.authorHamada R
dc.contributor.authorHamada S
dc.contributor.authorHamasaki N
dc.contributor.authorHirao Y
dc.contributor.authorIshitani Silva S
dc.contributor.authorItow Y
dc.contributor.authorKoshimoto N
dc.contributor.authorMatsubara Y
dc.contributor.authorMiyazaki S
dc.contributor.authorMuraki Y
dc.contributor.authorNagai T
dc.contributor.authorNunota K
dc.contributor.authorOlmschenk G
dc.contributor.authorRanc C
dc.contributor.authorRattenbury NJ
dc.contributor.authorSatoh Y
dc.contributor.authorSumi T
dc.contributor.authorSuzuki D
dc.contributor.authorTristram PJ
dc.contributor.authorVandorou A
dc.contributor.authorYama H
dc.date.accessioned2025-01-13T20:57:43Z
dc.date.available2025-01-13T20:57:43Z
dc.date.issued2024-12
dc.description.abstractGravitational microlensing is a phenomenon that allows us to observe the dark remnants of stellar evolution, even if these bodies are no longer emitting electromagnetic radiation. In particular, it can be useful to observe solitary neutron stars or stellar-mass black holes, providing a unique window through which to understand stellar evolution. Obtaining direct mass measurements with this technique requires precise observations of both the change in brightness and the position of the microlensed star. The European Space Agency's Gaia satellite can provide both. Using publicly available data from different surveys, we analysed events published in the Gaia Data Release 3 (Gaia DR3) microlensing catalogue. Here, we describe our selection of candidate dark lenses, where we suspect the lens is a white dwarf (WD), a neutron star (NS), a black hole (BH), or a mass-gap object, with a mass in the range between the heaviest NS and the least massive BH. We estimated the mass of the lenses using information obtained from the best-fitting microlensing models, source star, Galactic model, and the expected parameter distributions. We found eleven candidates for dark remnants: one WDs, three NSs, three mass-gap objects, and four BHs.
dc.description.confidentialfalse
dc.identifier.citationKruszyńska K, Wyrzykowski L, Rybicki KA, Howil K, Jablońska M, Kaczmarek Z, Ihanec N, Maskoliūnas M, Bronikowski M, Pylypenko U, Udalski A, Mróz P, Poleski R, Skowron J, Szymański MK, Soszyński I, Pietrukowicz P, Kozlowski S, Ulaczyk K, Iwanek P, Wrona M, Gromadzki M, Mróz MJ, Abe F, Bando K, Barry R, Bennett DP, Bhattacharya A, Bond IA, Fukui A, Hamada R, Hamada S, Hamasaki N, Hirao Y, Ishitani Silva S, Itow Y, Koshimoto N, Matsubara Y, Miyazaki S, Muraki Y, Nagai T, Nunota K, Olmschenk G, Ranc C, Rattenbury NJ, Satoh Y, Sumi T, Suzuki D, Tristram PJ, Vandorou A, Yama H. (2024). Dark lens candidates from Gaia Data Release 3. Astronomy and Astrophysics. 692. December 2024.
dc.identifier.doi10.1051/0004-6361/202449322
dc.identifier.eissn1432-0746
dc.identifier.elements-typejournal-article
dc.identifier.issn0004-6361
dc.identifier.numberA28
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/72362
dc.languageEnglish
dc.publisherEDP Sciences, France, for The European Southern Observatory
dc.publisher.urihttps://www.aanda.org/articles/aa/full_html/2024/12/aa49322-24/aa49322-24.html
dc.relation.isPartOfAstronomy and Astrophysics
dc.rights(c) 2024 The Author/s
dc.rightsCC BY 4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectgravitational lensing
dc.subjectmicro / techniques
dc.subjectphotometric / stars
dc.subjectblack holes / stars
dc.subjectneutron / white dwarfs
dc.titleDark lens candidates from Gaia Data Release 3
dc.typeJournal article
pubs.elements-id492691
pubs.organisational-groupOther
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