Unlike most other planet-detection techniques, gravitational microlensing does not rely on
detection of photons from either the host or the planet. Rather, planets are discovered by …

Gravitational microlensing finds planets through their gravitational influence on the light
coming from a more distant background star. The presence of the planet is then inferred from …

We present the discovery and validation of two TESS exoplanets orbiting nearby M dwarfs:
TOI-2084 b, and TOI-4184b. We characterized the host stars by combining spectra from …

In order to exhume the buried signatures of" missing planetary caustics" in Korea
Microlensing Telescope Network (KMTNet) data, we conducted a systematic anomaly …

We report the first unambiguous detection and mass measurement of an isolated stellar-
mass black hole (BH). We used the Hubble Space Telescope (HST) to carry out precise …

We are still in the early days of exoplanet discovery. Astronomers are beginning to model
the atmospheres and interiors of exoplanets and have developed a deeper understanding of …

We present microlens parallax measurements for 21 (apparently) isolated lenses observed
toward the Galactic bulge that were imaged simultaneously from Earth and Spitzer, which …

We present new ground-based, multi-colour, broad-band photometric measurements of the
physical parameters, transmission and emission spectra of the transiting extrasolar planet …

This chapter reviews various methods of detecting planetary companions to stars from an
observational perspective, focusing on radial velocities, astrometry, direct imaging, transits …

Abstract K2's Campaign 9 (K2C9) will conduct a∼ 3.7 deg 2 survey toward the Galactic
bulge from 2016 April 22 through July 2 that will leverage the spatial separation between K2 …