collaborators

7 papers

astro-ph.EP2025

Microlensing events indicate that super-Earth exoplanets are common in Jupiter-like orbits

Weicheng Zang, Youn Kil Jung, Jennifer C. Yee +65

Exoplanets classified as super-Earths are commonly observed on short period orbits, close to their host stars, but their abundance on wider orbits is poorly constrained. Gravitatio…

astro-ph.EP2025

Exoplanet Transit Candidate Identification in TESS Full-Frame Images via a Transformer-Based Algorithm

Helem Salinas, Rafael Brahm, Greg Olmschenk +4

The Transiting Exoplanet Survey Satellite (TESS) is surveying a large fraction of the sky, generating a vast database of photometric time series data that requires thorough analysi…

astro-ph.EP2025

MOA-2022-BLG-033Lb, KMT-2023-BLG-0119Lb, and KMT-2023-BLG-1896Lb: Three low mass-ratio microlensing planets detected through dip signals

Cheongho Han, Ian A. Bond, Youn Kil Jung +45

We examined the anomalies in the light curves of the lensing events MOA-2022-BLG-033, KMT-2023-BLG-0119, and KMT-2023-BLG-1896. We conducted detailed modeling of the light curves t…

astro-ph.SR2024

KMT-2021-BLG-0284, KMT-2022-BLG-2480, and KMT-2024-BLG-0412: Three microlensing events involving two lens masses and two source stars

Cheongho Han, Andrzej Udalski, Ian A. Bond +59

We carried out a project involving the systematic analysis of microlensing data from the Korea Microlensing Telescope Network survey. The aim of this project is to identify lensing…

astro-ph.GA2024

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

Kansuke Nunota, Takahiro Sumi, Naoki Koshimoto +23

We present measurements of the microlensing optical depth and event rate toward the Galactic bulge using the dataset from the 2006--2014 MOA-II survey, which covers 22 bulge fields…

astro-ph.SR2024

Short-period Heartbeat Binaries from TESS Full-Frame Images

Siddhant Solanki, Agnieszka M. Cieplak, Jeremy Schnittman +9

We identify short-period ( days) binary systems in the TESS data, of which are heartbeat binaries (HB). The sample is mostly a mix of A and B-type stars…