dc.contributor.author |
Wang, Tianshu |
|
dc.contributor.author |
Zhu, Wei |
|
dc.contributor.author |
Mao, Shude |
|
dc.contributor.author |
Bond, IA |
|
dc.contributor.author |
Gould, A |
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dc.contributor.author |
Udalski, A |
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dc.contributor.author |
Sumi, T |
|
dc.contributor.author |
Bozza, V |
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dc.contributor.author |
Ranc, C |
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dc.contributor.author |
Cassan, A |
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dc.contributor.author |
Yee, JC |
|
dc.contributor.author |
Han, C |
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dc.contributor.author |
Abe, F |
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dc.contributor.author |
Asakura, Y |
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dc.contributor.author |
Barry, R |
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dc.contributor.author |
Bennett, DP |
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dc.contributor.author |
Bhattacharya, A |
|
dc.contributor.author |
Donachie, M |
|
dc.contributor.author |
Evans, P |
|
dc.contributor.author |
Fukui, A |
|
dc.contributor.author |
Hirao, Y |
|
dc.contributor.author |
Itow, Y |
|
dc.contributor.author |
Kawasaki, K |
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dc.contributor.author |
Koshimoto, N |
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dc.contributor.author |
Li, MCA |
|
dc.contributor.author |
Ling, CH |
|
dc.contributor.author |
Masuda, K |
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dc.contributor.author |
Matsubara, Y |
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dc.contributor.author |
Miyazaki, S |
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dc.contributor.author |
Muraki, Y |
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dc.contributor.author |
Nagakane, M |
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dc.contributor.author |
Ohnishi, K |
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dc.contributor.author |
Rattenbury, N |
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dc.contributor.author |
Saito, To |
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dc.contributor.author |
Sharan, A |
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dc.contributor.author |
Shibai, H |
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dc.contributor.author |
Sullivan, DJ |
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dc.contributor.author |
Suzuki, D |
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dc.contributor.author |
Tristram, PJ |
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dc.contributor.author |
Yamada, T |
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dc.contributor.author |
Yonehara, A |
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dc.contributor.author |
KozŁowski, S |
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dc.contributor.author |
Mróz, P |
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dc.contributor.author |
Pawlak, M |
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dc.contributor.author |
Pietrukowicz, P |
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dc.contributor.author |
Poleski, R |
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dc.contributor.author |
Skowron, J |
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dc.contributor.author |
Soszyński, I |
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dc.contributor.author |
Szymański, MK |
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dc.contributor.author |
Ulaczyk, K |
|
dc.contributor.author |
Beichman, C |
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dc.contributor.author |
Bryden, G |
|
dc.contributor.author |
Novati, S Calchi |
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dc.contributor.author |
Carey, S |
|
dc.contributor.author |
Fausnaugh, M |
|
dc.contributor.author |
Gaudi, BS |
|
dc.contributor.author |
Henderson, CB |
|
dc.contributor.author |
Shvartzvald, Y |
|
dc.contributor.author |
Wibking, B |
|
dc.contributor.author |
Albrow, MD |
|
dc.contributor.author |
Chung, S-J |
|
dc.contributor.author |
Hwang, K-H |
|
dc.contributor.author |
Jung, YK |
|
dc.contributor.author |
Ryu, Y-H |
|
dc.contributor.author |
Shin, I-G |
|
dc.contributor.author |
Cha, S-M |
|
dc.contributor.author |
Kim, D-J |
|
dc.contributor.author |
Kim, H-W |
|
dc.contributor.author |
Kim, S-L |
|
dc.contributor.author |
Lee, C-U |
|
dc.contributor.author |
Lee, Y |
|
dc.contributor.author |
Park, B-G |
|
dc.contributor.author |
Pogge, RW |
|
dc.contributor.author |
Street, RA |
|
dc.contributor.author |
Tsapras, Y |
|
dc.contributor.author |
Hundertmark, M |
|
dc.contributor.author |
Bachelet, E |
|
dc.contributor.author |
Dominik, M |
|
dc.contributor.author |
Horne, K |
|
dc.contributor.author |
Jaimes, R Figuera |
|
dc.contributor.author |
Wambsganss, J |
|
dc.contributor.author |
Bramich, DM |
|
dc.contributor.author |
Schmidt, R |
|
dc.contributor.author |
Snodgrass, C |
|
dc.contributor.author |
Steele, IA |
|
dc.contributor.author |
Menzies, J |
|
dc.date.accessioned |
2023-03-08T00:50:55Z |
|
dc.date.available |
2023-03-08T00:50:55Z |
|
dc.date.issued |
2017-08-20 |
|
dc.identifier.citation |
(2017). The Astrophysical Journal: an international review of astronomy and astronomical physics, 845(2), 129-. |
|
dc.identifier.issn |
0004-637X |
|
dc.identifier.uri |
https://hdl.handle.net/2292/63200 |
|
dc.description.abstract |
We present the analysis of the binary gravitational microlensing event MOA-2015-BLG-020. The event has a fairly long timescale (∼63 days) and thus the light curve deviates significantly from the lensing model that is based on the rectilinear lens-source relative motion. This enables us to measure the microlensing parallax through the annual parallax effect. The microlensing parallax parameters constrained by the ground-based data are confirmed by the Spitzer observations through the satellite parallax method. By additionally measuring the angular Einstein radius from the analysis of the resolved caustic crossing, the physical parameters of the lens are determined. It is found that the binary lens is composed of two dwarf stars with masses and in the Galactic disk. Assuming that the source star is at the same distance as the bulge red clump stars, we find the lens is at a distance . We also provide a summary and short discussion of all of the published microlensing events in which the annual parallax effect is confirmed by other independent observations. |
|
dc.language |
English |
|
dc.publisher |
American Astronomical Society |
|
dc.relation.ispartofseries |
The Astrophysical Journal |
|
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. |
|
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
|
dc.rights.uri |
https://arxiv.org/licenses/nonexclusive-distrib/1.0/license.html |
|
dc.subject |
Science & Technology |
|
dc.subject |
Physical Sciences |
|
dc.subject |
Astronomy & Astrophysics |
|
dc.subject |
binaries: general |
|
dc.subject |
Galaxy: bulge |
|
dc.subject |
gravitational lensing: micro |
|
dc.subject |
GRAVITATIONAL LENSING EXPERIMENT |
|
dc.subject |
JUPITER/SATURN ANALOG |
|
dc.subject |
DISTANCES |
|
dc.subject |
ALGORITHM |
|
dc.subject |
SYSTEMS |
|
dc.subject |
PLANET |
|
dc.subject |
MASSES |
|
dc.subject |
STARS |
|
dc.subject |
astro-ph.SR |
|
dc.subject |
0201 Astronomical and Space Sciences |
|
dc.subject |
0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics |
|
dc.subject |
0306 Physical Chemistry (incl. Structural) |
|
dc.title |
Ground-based Parallax Confirmed by Spitzer: Binary Microlensing Event MOA-2015-BLG-020 |
|
dc.type |
Journal Article |
|
dc.identifier.doi |
10.3847/1538-4357/aa813b |
|
pubs.issue |
2 |
|
pubs.begin-page |
129 |
|
pubs.volume |
845 |
|
dc.date.updated |
2023-02-06T22:59:44Z |
|
dc.rights.holder |
Copyright: The authors |
en |
pubs.author-url |
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000408111400015&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=6e41486220adb198d0efde5a3b153e7d |
|
pubs.publication-status |
Published online |
|
dc.rights.accessrights |
http://purl.org/eprint/accessRights/OpenAccess |
en |
pubs.subtype |
Article |
|
pubs.subtype |
Journal |
|
pubs.elements-id |
641202 |
|
dc.identifier.eissn |
1538-4357 |
|
pubs.number |
ARTN 129 |
|
pubs.record-created-at-source-date |
2023-02-07 |
|
pubs.online-publication-date |
2017-08-18 |
|