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20012023
most citedThe BOES spectropolarimeter for Zeeman measurements of stellar magnetic fields

103 citations · 1.7k across the 99 of their papers we have counts for

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Showing 2019Show all

12 papers · 1 filter

astro-ph.EP2019★ 15 cited

KMT-2019-BLG-0842Lb: A Cold Planet Below the Uranus/Sun Mass Ratio

Youn Kil Jung, Andrzej Udalski, Weicheng Zang +59

We report the discovery of a cold planet with a very low planet/host mass ratio of , which is similar to the ratio of Uranus/Sun ($q=4.37 \times 10^…

astro-ph.EP2019★ 23 cited

OGLE-2015-BLG-1771Lb: A Microlens Planet Orbiting an Ultracool Dwarf?

Xiangyu Zhang, Weicheng Zang, Andrzej Udalski +31

We report the discovery and the analysis of the short (tE < 5 days) planetary microlensing event, OGLE-2015-BLG-1771. The event was discovered by the Optical Gravitational Lensing…

astro-ph.EP2019★ 7 cited

KMT-2016-BLG-1836Lb: A Super-Jovian Planet From A High-Cadence Microlensing Field

Hongjing Yang, Xiangyu Zhang, Kyu-Ha Hwang +24

We report the discovery of a super-Jovian planet in the microlensing event KMT-2016-BLG-1836, which was found by the Korea Microlensing Telescope Network's high-cadence observation…

astro-ph.GA2019★ 10 cited

Impact of Galaxy Mergers on the Colours of Cluster Galaxies

Sree Oh, Keunho Kim, Joon Hyeop Lee +9

We examine the ultraviolet and optical colours of 906 cluster galaxies from the KASI-Yonsei Deep Imaging Survey of Clusters (KYDISC). Galaxies have been divided into two categories…

astro-ph.EP2019

KMT-2018-BLG-0029Lb: A Very Low Mass-Ratio Spitzer Microlens Planet

Andrew Gould, Yoon-Hyun Ryu, Sebastiano Calchi Novati +29

At , KMT-2018-BLG-0029Lb has the lowest planet-host mass ratio of any microlensing planet to date by more than a factor of two. Hence, it is the…

astro-ph.EP2019★ 17 cited

OGLE-2018-BLG-0532Lb: Cold Neptune With Possible Jovian Sibling

Yoon-Hyun Ryu, Andrzej Udalski, Jennifer C. Yee +34

We report the discovery of the planet OGLE-2018-BLG-0532Lb, with very obvious signatures in the light curve that lead to an estimate of the planet-host mass ratio $q=M_{\rm planet}…