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20092025
most citedChemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. VI. Age and abundance structure of the stellar populations in the central sub-kpc of the Milky Way

197 citations · 813 across the 43 of their papers we have counts for

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Showing 2018Show all

6 papers · 1 filter

astro-ph.SR2018★ 8 cited

OGLE-2017-BLG-0039: Microlensing Event with Light from the Lens Identified from Mass Measurement

C. Han, Y. K. Jung, A. Udalski +58

We present the analysis of the caustic-crossing binary microlensing event OGLE-2017-BLG-0039. Thanks to the very long duration of the event, with an event time scale $t_{\rm E}\sim…

astro-ph.EP2018★ 11 cited

OGLE-2014-BLG-1186: gravitational microlensing providing evidence for a planet orbiting the foreground star or for a close binary source?

M. Dominik, E. Bachelet, V. Bozza +40

(abridged) Using the particularly long gravitational microlensing event OGLE-2014-BLG-1186 with a time-scale ~ 300 d, we present a methodology for identifying the na…

astro-ph.EP2018★ 7 cited

OGLE-2017-BLG-0482Lb: A Microlensing Super-Earth Orbiting a Low-mass Host Star

C. Han, Y. Hirao, A. Udalski +62

We report the discovery of a planetary system in which a super-earth orbits a late M-dwarf host. The planetary system was found from the analysis of the microlensing event OGLE-201…

astro-ph.SR2018★ 12 cited

OGLE-2016-BLG-1266: A Probable Brown-Dwarf/Planet Binary at the Deuterium Fusion Limit

M. D. Albrow, J. C. Yee, A. Udalski +33

We report the discovery, via the microlensing method, of a new very-low-mass binary system. By combining measurements from Earth and from the Spitzer telescope in Earth-trailing or…

astro-ph.EP2018★ 31 cited

OGLE-2017-BLG-1434Lb: Eighth q < 1 * 10^-4 Mass-Ratio Microlens Planet Confirms Turnover in Planet Mass-Ratio Function

A. Udalski, Y. -H. Ryu, S. Sajadian +55

We report the discovery of a cold Super-Earth planet (m_p=4.4 +/- 0.5 M_Earth) orbiting a low-mass (M=0.23 +/- 0.03 M_Sun) M dwarf at projected separation a_perp = 1.18 +/- 0.10 AU…

astro-ph.SR2018★ 10 cited

OGLE-2014-BLG-0289: Precise Characterization of a Quintuple-Peak Gravitational Microlensing Event

A. Udalski, C. Han, V. Bozza +63

We present the analysis of the binary-microlensing event OGLE-2014-BLG-0289. The event light curve exhibits very unusual five peaks where four peaks were produced by caustic crossi…