The Microlensing Event Rate and Optical Depth from MOA-II 9 Yr Survey Toward the Galactic Bulge

We present measurements of the microlensing optical depth and event rate toward the Galactic bulge using the data set from the 2006 to 2014 MOA-II survey, which covers 22 bulge fields spanning ∼42 deg ^2 between −5° <  l  < 10° and −7° <  b  < −1°. In the central region with ∣ l ∣ < 5°, we estimate...

Ausführliche Beschreibung

Bibliografische Detailangaben

Hauptverfasser:	Kansuke Nunota, Takahiro Sumi, Naoki Koshimoto, Nicholas J. Rattenbury, Fumio Abe, Richard Barry, David P. Bennett, Aparna Bhattacharya, Akihiko Fukui, Ryusei Hamada, Shunya Hamada, Naoto Hamasaki, Yuki Hirao, Stela Ishitani Silva, Yoshitaka Itow, Yutaka Matsubara, Shota Miyazaki, Yasushi Muraki, Tsutsumi Nagai, Greg Olmschenk, Clement Ranc, Yuki K. Satoh, Daisuke Suzuki, Paul. J. Tristram, Aikaterini Vandorou, Hibiki Yama, (MOA collaboration)
Format:	Artigo
Sprache:	Inglês
Veröffentlicht:	IOP Publishing 2025-01-01
Schriftenreihe:	The Astrophysical Journal
Schlagworte:	Galactic center Milky Way Galaxy Microlensing event rate Microlensing optical depth Gravitational microlensing
Online-Zugang:	https://doi.org/10.3847/1538-4357/ada352
Tags:	Tag hinzufügen Keine Tags, Fügen Sie das erste Tag hinzu!