English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We report the first mass and distance measurement of a caustic-crossingbinary system OGLE-2014-BLG-1050L using the space-based microlens parallaxmethod. \emph{Spitzer} captured the second caustic-crossing of the event, whichoccurred $\sim$10 days before that seen from Earth. Due to the coincidence thatthe source-lens relative motion was almost parallel to the direction of thebinary-lens axis, the four-fold degeneracy, which was known before only tooccur in single-lens events, persists in this case, leading to either alower-mass (0.2 $M_\odot$ and 0.07 $M_\odot$) binary at $\sim$1.1 kpc or ahigher-mass (0.9 $M_\odot$ and 0.35 $M_\odot$) binary at $\sim$3.5 kpc.However, the latter solution is strongly preferred for reasons includingblending and lensing probability. OGLE-2014-BLG-1050L demonstrates the power ofmicrolens parallax in probing stellar and substellar binaries.

Spitzer as Microlens Parallax Satellite: Mass and Distance Measurements of Binary Lens System OGLE-2014-BLG-1050L