KMT-2021-BLG-1122L: The first microlensing triple stellar system
Aims. We systematically inspected the microlensing data acquired by the KMTNet survey during the previous seasons in order to find anomalous lensing events for which the anomalies in the lensing light curves cannot be explained by the usual binary-lens or binary-source interpretations. Methods. From...
Gespeichert in:
| Veröffentlicht in: | Astronomy and astrophysics (Berlin) 2023-04, Vol.672, p.A8 |
|---|---|
| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | A8 |
| container_title | Astronomy and astrophysics (Berlin) |
| container_volume | 672 |
| creator | Han, Cheongho Jung, Youn Kil Gould, Andrew Kim, Doeon Lee, Chung-Uk Albrow, Michael D. Chung, Sun-Ju Hwang, Kyu-Ha Kim, Hyoun-Woo Ryu, Yoon-Hyun Shin, In-Gu Shvartzvald, Yossi Yang, Hongjing Yee, Jennifer C. Zang, Weicheng Cha, Sang-Mok Kim, Dong-Jin Kim, Seung-Lee Lee, Dong-Joo Lee, Yongseok Park, Byeong-Gon Pogge, Richard W. |
| description | Aims.
We systematically inspected the microlensing data acquired by the KMTNet survey during the previous seasons in order to find anomalous lensing events for which the anomalies in the lensing light curves cannot be explained by the usual binary-lens or binary-source interpretations.
Methods.
From the inspection, we find that interpreting the three lensing events OGLE-2018-BLG-0584, KMT-2018-BLG-2119, and KMT-2021-BLG-1122 requires four-body (lens+source) models, in which either both the lens and source are binaries (2L2S event) or the lens is a triple system (3L1S event). Following the analyses of the 2L2S events presented in our previous work, here we present the 3L1S analysis of the KMT-2021-BLG-1122.
Results.
It is found that the lens of the event KMT-2021-BLG-1122 is composed of three masses, in which the projected separations (normalized to the angular Einstein radius) and mass ratios between the lens companions and the primary are (
s
2
,
q
2
)∼(1.4, 0.53) and (
s
3
,
q
3
)∼(1.6, 0.24). By conducting a Bayesian analysis, we estimate that the masses of the individual lens components are (
M
1
,
M
2
,
M
3
)∼(0.47
M
⊙
, 0.24
M
⊙
, 0.11
M
⊙
). The companions are separated in projection from the primary by (
a
⊥, 2
,
a
⊥, 3
)∼(3.5, 4.0) AU. The lens of KMT-2018-BLG-2119 is the first triple stellar system detected via microlensing. |
| doi_str_mv | 10.1051/0004-6361/202245644 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2793401339</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2793401339</sourcerecordid><originalsourceid>FETCH-LOGICAL-c322t-63ed23b45ca3f67f25d0a0f110c8e64c923bfbfd85285efd0418339f0a52ab133</originalsourceid><addsrcrecordid>eNo9kEFPwzAMhSMEEmPwC7hU4hxmO0nXcgKmMRBFXMo5ytoEOrVbSbrD_j2phnayLT_7PX2M3SLcIyicAYDkqUhxRkAkVSrlGZugFMRhLtNzNjkpLtlVCJs4EmZiwh7fP0oej5A_FyuOSFQ8JOWPTVzjw5B0TeV3rd2GZvudDL7pW5uEwbat8Uk4xK67ZhfOtMHe_Ncp-3pZlotXXnyu3hZPBa8E0RCtbU1iLVVlhEvnjlQNBhwiVJlNZZXHpVu7OlOUKetqkDGeyB0YRWaNQkzZ3fFv73e_exsGvdnt_TZaaprnQkLU5FEljqoYOwRvne590xl_0Ah6RKVHEHoEoU-oxB-HbFhN</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2793401339</pqid></control><display><type>article</type><title>KMT-2021-BLG-1122L: The first microlensing triple stellar system</title><source>Bacon EDP Sciences France Licence nationale-ISTEX-PS-Journals-PFISTEX</source><source>EDP Sciences</source><source>EZB-FREE-00999 freely available EZB journals</source><creator>Han, Cheongho ; Jung, Youn Kil ; Gould, Andrew ; Kim, Doeon ; Lee, Chung-Uk ; Albrow, Michael D. ; Chung, Sun-Ju ; Hwang, Kyu-Ha ; Kim, Hyoun-Woo ; Ryu, Yoon-Hyun ; Shin, In-Gu ; Shvartzvald, Yossi ; Yang, Hongjing ; Yee, Jennifer C. ; Zang, Weicheng ; Cha, Sang-Mok ; Kim, Dong-Jin ; Kim, Seung-Lee ; Lee, Dong-Joo ; Lee, Yongseok ; Park, Byeong-Gon ; Pogge, Richard W.</creator><creatorcontrib>Han, Cheongho ; Jung, Youn Kil ; Gould, Andrew ; Kim, Doeon ; Lee, Chung-Uk ; Albrow, Michael D. ; Chung, Sun-Ju ; Hwang, Kyu-Ha ; Kim, Hyoun-Woo ; Ryu, Yoon-Hyun ; Shin, In-Gu ; Shvartzvald, Yossi ; Yang, Hongjing ; Yee, Jennifer C. ; Zang, Weicheng ; Cha, Sang-Mok ; Kim, Dong-Jin ; Kim, Seung-Lee ; Lee, Dong-Joo ; Lee, Yongseok ; Park, Byeong-Gon ; Pogge, Richard W.</creatorcontrib><description>Aims.
We systematically inspected the microlensing data acquired by the KMTNet survey during the previous seasons in order to find anomalous lensing events for which the anomalies in the lensing light curves cannot be explained by the usual binary-lens or binary-source interpretations.
Methods.
From the inspection, we find that interpreting the three lensing events OGLE-2018-BLG-0584, KMT-2018-BLG-2119, and KMT-2021-BLG-1122 requires four-body (lens+source) models, in which either both the lens and source are binaries (2L2S event) or the lens is a triple system (3L1S event). Following the analyses of the 2L2S events presented in our previous work, here we present the 3L1S analysis of the KMT-2021-BLG-1122.
Results.
It is found that the lens of the event KMT-2021-BLG-1122 is composed of three masses, in which the projected separations (normalized to the angular Einstein radius) and mass ratios between the lens companions and the primary are (
s
2
,
q
2
)∼(1.4, 0.53) and (
s
3
,
q
3
)∼(1.6, 0.24). By conducting a Bayesian analysis, we estimate that the masses of the individual lens components are (
M
1
,
M
2
,
M
3
)∼(0.47
M
⊙
, 0.24
M
⊙
, 0.11
M
⊙
). The companions are separated in projection from the primary by (
a
⊥, 2
,
a
⊥, 3
)∼(3.5, 4.0) AU. The lens of KMT-2018-BLG-2119 is the first triple stellar system detected via microlensing.</description><identifier>ISSN: 0004-6361</identifier><identifier>EISSN: 1432-0746</identifier><identifier>DOI: 10.1051/0004-6361/202245644</identifier><language>eng</language><publisher>Heidelberg: EDP Sciences</publisher><subject>Anomalies ; Bayesian analysis ; Binary stars ; Data acquisition ; Inspection ; Lenses ; Light curve ; Mass ratios ; Microlenses</subject><ispartof>Astronomy and astrophysics (Berlin), 2023-04, Vol.672, p.A8</ispartof><rights>2023. This work is licensed under https://creativecommons.org/licenses/by/4.0 (the “License”). Notwithstanding the ProQuest Terms and conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c322t-63ed23b45ca3f67f25d0a0f110c8e64c923bfbfd85285efd0418339f0a52ab133</citedby><cites>FETCH-LOGICAL-c322t-63ed23b45ca3f67f25d0a0f110c8e64c923bfbfd85285efd0418339f0a52ab133</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,781,785,3728,27925,27926</link.rule.ids></links><search><creatorcontrib>Han, Cheongho</creatorcontrib><creatorcontrib>Jung, Youn Kil</creatorcontrib><creatorcontrib>Gould, Andrew</creatorcontrib><creatorcontrib>Kim, Doeon</creatorcontrib><creatorcontrib>Lee, Chung-Uk</creatorcontrib><creatorcontrib>Albrow, Michael D.</creatorcontrib><creatorcontrib>Chung, Sun-Ju</creatorcontrib><creatorcontrib>Hwang, Kyu-Ha</creatorcontrib><creatorcontrib>Kim, Hyoun-Woo</creatorcontrib><creatorcontrib>Ryu, Yoon-Hyun</creatorcontrib><creatorcontrib>Shin, In-Gu</creatorcontrib><creatorcontrib>Shvartzvald, Yossi</creatorcontrib><creatorcontrib>Yang, Hongjing</creatorcontrib><creatorcontrib>Yee, Jennifer C.</creatorcontrib><creatorcontrib>Zang, Weicheng</creatorcontrib><creatorcontrib>Cha, Sang-Mok</creatorcontrib><creatorcontrib>Kim, Dong-Jin</creatorcontrib><creatorcontrib>Kim, Seung-Lee</creatorcontrib><creatorcontrib>Lee, Dong-Joo</creatorcontrib><creatorcontrib>Lee, Yongseok</creatorcontrib><creatorcontrib>Park, Byeong-Gon</creatorcontrib><creatorcontrib>Pogge, Richard W.</creatorcontrib><title>KMT-2021-BLG-1122L: The first microlensing triple stellar system</title><title>Astronomy and astrophysics (Berlin)</title><description>Aims.
We systematically inspected the microlensing data acquired by the KMTNet survey during the previous seasons in order to find anomalous lensing events for which the anomalies in the lensing light curves cannot be explained by the usual binary-lens or binary-source interpretations.
Methods.
From the inspection, we find that interpreting the three lensing events OGLE-2018-BLG-0584, KMT-2018-BLG-2119, and KMT-2021-BLG-1122 requires four-body (lens+source) models, in which either both the lens and source are binaries (2L2S event) or the lens is a triple system (3L1S event). Following the analyses of the 2L2S events presented in our previous work, here we present the 3L1S analysis of the KMT-2021-BLG-1122.
Results.
It is found that the lens of the event KMT-2021-BLG-1122 is composed of three masses, in which the projected separations (normalized to the angular Einstein radius) and mass ratios between the lens companions and the primary are (
s
2
,
q
2
)∼(1.4, 0.53) and (
s
3
,
q
3
)∼(1.6, 0.24). By conducting a Bayesian analysis, we estimate that the masses of the individual lens components are (
M
1
,
M
2
,
M
3
)∼(0.47
M
⊙
, 0.24
M
⊙
, 0.11
M
⊙
). The companions are separated in projection from the primary by (
a
⊥, 2
,
a
⊥, 3
)∼(3.5, 4.0) AU. The lens of KMT-2018-BLG-2119 is the first triple stellar system detected via microlensing.</description><subject>Anomalies</subject><subject>Bayesian analysis</subject><subject>Binary stars</subject><subject>Data acquisition</subject><subject>Inspection</subject><subject>Lenses</subject><subject>Light curve</subject><subject>Mass ratios</subject><subject>Microlenses</subject><issn>0004-6361</issn><issn>1432-0746</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNo9kEFPwzAMhSMEEmPwC7hU4hxmO0nXcgKmMRBFXMo5ytoEOrVbSbrD_j2phnayLT_7PX2M3SLcIyicAYDkqUhxRkAkVSrlGZugFMRhLtNzNjkpLtlVCJs4EmZiwh7fP0oej5A_FyuOSFQ8JOWPTVzjw5B0TeV3rd2GZvudDL7pW5uEwbat8Uk4xK67ZhfOtMHe_Ncp-3pZlotXXnyu3hZPBa8E0RCtbU1iLVVlhEvnjlQNBhwiVJlNZZXHpVu7OlOUKetqkDGeyB0YRWaNQkzZ3fFv73e_exsGvdnt_TZaaprnQkLU5FEljqoYOwRvne590xl_0Ah6RKVHEHoEoU-oxB-HbFhN</recordid><startdate>20230401</startdate><enddate>20230401</enddate><creator>Han, Cheongho</creator><creator>Jung, Youn Kil</creator><creator>Gould, Andrew</creator><creator>Kim, Doeon</creator><creator>Lee, Chung-Uk</creator><creator>Albrow, Michael D.</creator><creator>Chung, Sun-Ju</creator><creator>Hwang, Kyu-Ha</creator><creator>Kim, Hyoun-Woo</creator><creator>Ryu, Yoon-Hyun</creator><creator>Shin, In-Gu</creator><creator>Shvartzvald, Yossi</creator><creator>Yang, Hongjing</creator><creator>Yee, Jennifer C.</creator><creator>Zang, Weicheng</creator><creator>Cha, Sang-Mok</creator><creator>Kim, Dong-Jin</creator><creator>Kim, Seung-Lee</creator><creator>Lee, Dong-Joo</creator><creator>Lee, Yongseok</creator><creator>Park, Byeong-Gon</creator><creator>Pogge, Richard W.</creator><general>EDP Sciences</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20230401</creationdate><title>KMT-2021-BLG-1122L: The first microlensing triple stellar system</title><author>Han, Cheongho ; Jung, Youn Kil ; Gould, Andrew ; Kim, Doeon ; Lee, Chung-Uk ; Albrow, Michael D. ; Chung, Sun-Ju ; Hwang, Kyu-Ha ; Kim, Hyoun-Woo ; Ryu, Yoon-Hyun ; Shin, In-Gu ; Shvartzvald, Yossi ; Yang, Hongjing ; Yee, Jennifer C. ; Zang, Weicheng ; Cha, Sang-Mok ; Kim, Dong-Jin ; Kim, Seung-Lee ; Lee, Dong-Joo ; Lee, Yongseok ; Park, Byeong-Gon ; Pogge, Richard W.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c322t-63ed23b45ca3f67f25d0a0f110c8e64c923bfbfd85285efd0418339f0a52ab133</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Anomalies</topic><topic>Bayesian analysis</topic><topic>Binary stars</topic><topic>Data acquisition</topic><topic>Inspection</topic><topic>Lenses</topic><topic>Light curve</topic><topic>Mass ratios</topic><topic>Microlenses</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Han, Cheongho</creatorcontrib><creatorcontrib>Jung, Youn Kil</creatorcontrib><creatorcontrib>Gould, Andrew</creatorcontrib><creatorcontrib>Kim, Doeon</creatorcontrib><creatorcontrib>Lee, Chung-Uk</creatorcontrib><creatorcontrib>Albrow, Michael D.</creatorcontrib><creatorcontrib>Chung, Sun-Ju</creatorcontrib><creatorcontrib>Hwang, Kyu-Ha</creatorcontrib><creatorcontrib>Kim, Hyoun-Woo</creatorcontrib><creatorcontrib>Ryu, Yoon-Hyun</creatorcontrib><creatorcontrib>Shin, In-Gu</creatorcontrib><creatorcontrib>Shvartzvald, Yossi</creatorcontrib><creatorcontrib>Yang, Hongjing</creatorcontrib><creatorcontrib>Yee, Jennifer C.</creatorcontrib><creatorcontrib>Zang, Weicheng</creatorcontrib><creatorcontrib>Cha, Sang-Mok</creatorcontrib><creatorcontrib>Kim, Dong-Jin</creatorcontrib><creatorcontrib>Kim, Seung-Lee</creatorcontrib><creatorcontrib>Lee, Dong-Joo</creatorcontrib><creatorcontrib>Lee, Yongseok</creatorcontrib><creatorcontrib>Park, Byeong-Gon</creatorcontrib><creatorcontrib>Pogge, Richard W.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Astronomy and astrophysics (Berlin)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Han, Cheongho</au><au>Jung, Youn Kil</au><au>Gould, Andrew</au><au>Kim, Doeon</au><au>Lee, Chung-Uk</au><au>Albrow, Michael D.</au><au>Chung, Sun-Ju</au><au>Hwang, Kyu-Ha</au><au>Kim, Hyoun-Woo</au><au>Ryu, Yoon-Hyun</au><au>Shin, In-Gu</au><au>Shvartzvald, Yossi</au><au>Yang, Hongjing</au><au>Yee, Jennifer C.</au><au>Zang, Weicheng</au><au>Cha, Sang-Mok</au><au>Kim, Dong-Jin</au><au>Kim, Seung-Lee</au><au>Lee, Dong-Joo</au><au>Lee, Yongseok</au><au>Park, Byeong-Gon</au><au>Pogge, Richard W.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>KMT-2021-BLG-1122L: The first microlensing triple stellar system</atitle><jtitle>Astronomy and astrophysics (Berlin)</jtitle><date>2023-04-01</date><risdate>2023</risdate><volume>672</volume><spage>A8</spage><pages>A8-</pages><issn>0004-6361</issn><eissn>1432-0746</eissn><abstract>Aims.
We systematically inspected the microlensing data acquired by the KMTNet survey during the previous seasons in order to find anomalous lensing events for which the anomalies in the lensing light curves cannot be explained by the usual binary-lens or binary-source interpretations.
Methods.
From the inspection, we find that interpreting the three lensing events OGLE-2018-BLG-0584, KMT-2018-BLG-2119, and KMT-2021-BLG-1122 requires four-body (lens+source) models, in which either both the lens and source are binaries (2L2S event) or the lens is a triple system (3L1S event). Following the analyses of the 2L2S events presented in our previous work, here we present the 3L1S analysis of the KMT-2021-BLG-1122.
Results.
It is found that the lens of the event KMT-2021-BLG-1122 is composed of three masses, in which the projected separations (normalized to the angular Einstein radius) and mass ratios between the lens companions and the primary are (
s
2
,
q
2
)∼(1.4, 0.53) and (
s
3
,
q
3
)∼(1.6, 0.24). By conducting a Bayesian analysis, we estimate that the masses of the individual lens components are (
M
1
,
M
2
,
M
3
)∼(0.47
M
⊙
, 0.24
M
⊙
, 0.11
M
⊙
). The companions are separated in projection from the primary by (
a
⊥, 2
,
a
⊥, 3
)∼(3.5, 4.0) AU. The lens of KMT-2018-BLG-2119 is the first triple stellar system detected via microlensing.</abstract><cop>Heidelberg</cop><pub>EDP Sciences</pub><doi>10.1051/0004-6361/202245644</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-6361 |
| ispartof | Astronomy and astrophysics (Berlin), 2023-04, Vol.672, p.A8 |
| issn | 0004-6361 1432-0746 |
| language | eng |
| recordid | cdi_proquest_journals_2793401339 |
| source | Bacon EDP Sciences France Licence nationale-ISTEX-PS-Journals-PFISTEX; EDP Sciences; EZB-FREE-00999 freely available EZB journals |
| subjects | Anomalies Bayesian analysis Binary stars Data acquisition Inspection Lenses Light curve Mass ratios Microlenses |
| title | KMT-2021-BLG-1122L: The first microlensing triple stellar system |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-18T13%3A36%3A38IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=KMT-2021-BLG-1122L:%20The%20first%20microlensing%20triple%20stellar%20system&rft.jtitle=Astronomy%20and%20astrophysics%20(Berlin)&rft.au=Han,%20Cheongho&rft.date=2023-04-01&rft.volume=672&rft.spage=A8&rft.pages=A8-&rft.issn=0004-6361&rft.eissn=1432-0746&rft_id=info:doi/10.1051/0004-6361/202245644&rft_dat=%3Cproquest_cross%3E2793401339%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2793401339&rft_id=info:pmid/&rfr_iscdi=true |