Y Tsapras
An analysis of binary microlensing event OGLE-2015-BLG-0060
Tsapras, Y; Cassan, A; Ranc, C; Bachelet, E; Street, R; Udalski, A; Hundertmark, M; Bozza, V; Beaulieu, J P; Marquette, J B; Euteneuer, E; Bramich, D M; Dominik, M; Figuera Jaimes, R; Horne, K; Mao, S; Menzies, J; Schmidt, R; Snodgrass, C; Steele, I A; Wambsganss, J; Mróz, P; Szymański, M K; Soszyński, I; Skowron, J; Pietrukowicz, P; Kozłowski, S; Poleski, R; Ulaczyk, K; Pawlak, M; Jørgensen, U G; Skottfelt, J; Popovas, A; Ciceri, S; Korhonen, H; Kuffmeier, M; Evans, D F; Peixinho, N; Hinse, T C; Burgdorf, M J; Southworth, J; Tronsgaard, R; Kerins, E; Andersen, M I; Rahvar, S; Wang, Y; Wertz, O; Rabus, M; Calchi Novati, S; D’Ago, G; Scarpetta, G; Mancini, L; Abe, F; Asakura, Y; Bennett, D P; Bhattacharya, A; Donachie, M; Evans, P; Fukui, A; Hirao, Y; Itow, Y; Kawasaki, K; Koshimoto, N; Li, M C A; Ling, C H; Masuda, K; Matsubara, Y; Muraki, Y; Miyazaki, S; Nagakane, M; Ohnishi, K; Rattenbury, N; Saito, To; Sharan, A; Shibai, H; Sullivan, D J; Sumi, T; Suzuki, D; Tristram, P J; Yamada, T...
Authors
A Cassan
C Ranc
E Bachelet
R Street
A Udalski
M Hundertmark
V Bozza
J P Beaulieu
J B Marquette
E Euteneuer
D M Bramich
M Dominik
R Figuera Jaimes
K Horne
S Mao
J Menzies
R Schmidt
C Snodgrass
I A Steele
J Wambsganss
P Mróz
M K Szymański
I Soszyński
J Skowron
P Pietrukowicz
S Kozłowski
R Poleski
K Ulaczyk
M Pawlak
U G Jørgensen
J Skottfelt
A Popovas
S Ciceri
H Korhonen
M Kuffmeier
D F Evans
N Peixinho
T C Hinse
M J Burgdorf
Dr John Taylor j.k.taylor@keele.ac.uk
R Tronsgaard
E Kerins
M I Andersen
S Rahvar
Y Wang
O Wertz
M Rabus
S Calchi Novati
G D’Ago
G Scarpetta
L Mancini
F Abe
Y Asakura
D P Bennett
A Bhattacharya
M Donachie
P Evans
A Fukui
Y Hirao
Y Itow
K Kawasaki
N Koshimoto
M C A Li
C H Ling
K Masuda
Y Matsubara
Y Muraki
S Miyazaki
M Nagakane
K Ohnishi
N Rattenbury
To Saito
A Sharan
H Shibai
D J Sullivan
T Sumi
D Suzuki
P J Tristram
T Yamada
A Yonehara
The RoboNet team
The OGLE collaboration
The MiNDSTEp collaboration
The MOA collaboration
Abstract
We present the analysis of stellar binary microlensing event OGLE-2015-BLG-0060 based on observations obtained from 13 different telescopes. Intensive coverage of the anomalous parts of the light curve was achieved by automated follow-up observations from the robotic telescopes of the Las Cumbres Observatory. We show that, for the first time, all main features of an anomalous microlensing event are well covered by follow-up data, allowing us to estimate the physical parameters of the lens. The strong detection of second-order effects in the event light curve necessitates the inclusion of longer-baseline survey data in order to constrain the parallax vector. We find that the event was most likely caused by a stellar binary-lens with masses $M_\star 1 = 0.87 \pm 0.12 \, \mathrmM_ødot $ and $M_\star 2 = 0.77 \pm 0.11 \, \mathrmM_ødot $. The distance to the lensing system is 6.41 ± 0.14 kpc and the projected separation between the two components is 13.85 ± 0.16 au. Alternative interpretations are also considered.
Citation
Tsapras, Y., Cassan, A., Ranc, C., Bachelet, E., Street, R., Udalski, A., …collaboration, T. M. (2019). An analysis of binary microlensing event OGLE-2015-BLG-0060. Monthly Notices of the Royal Astronomical Society, 487(4), 4603 - 4614. https://doi.org/10.1093/mnras/stz1404
Journal Article Type | Article |
---|---|
Acceptance Date | May 16, 2019 |
Online Publication Date | May 30, 2019 |
Publication Date | Aug 1, 2019 |
Publicly Available Date | May 26, 2023 |
Journal | Monthly Notices of the Royal Astronomical Society |
Print ISSN | 0035-8711 |
Publisher | Oxford University Press |
Peer Reviewed | Peer Reviewed |
Volume | 487 |
Issue | 4 |
Pages | 4603 - 4614 |
DOI | https://doi.org/10.1093/mnras/stz1404 |
Keywords | gravitational lensing, micro, methods, observational, techniques, photometric, Galaxy, bulge |
Publisher URL | https://doi.org/10.1093/mnras/stz1404 |
Files
southworth-2019-analysis-binary-microlensing-event-ogle-mnras-vor.pdf
(43.8 Mb)
PDF
You might also like
REDISCUSSION OF ECLIPSING BINARIES. PAPER 13: THE F-TYPE TWIN SYSTEM IT CASSIOPEIAE
(2023)
Journal Article
Tidally perturbed gravity-mode pulsations in a sample of close eclipsing binaries
(2023)
Journal Article
REDISCUSSION OF ECLIPSING BINARIES. PAPER 12: THE F-TYPE TWIN SYSTEM ZZ BOOTIS
(2023)
Journal Article
Transit timing variation analysis of the low-mass brown dwarf KELT-1 b
(2023)
Journal Article
Downloadable Citations
About Keele Repository
Administrator e-mail: research.openaccess@keele.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search