(they/them - I don't think my sex matters for science)

PDF CV

(last update 2024-06-20)

Profiles:

• NASA ADS
• ORCiD 0000-0002-2618-1124
• GitHub @ysBach

My general interest includes emission and scattering processes on airless objects in the solar system (theory, observation, experimental data analyses, data reduction and related statistics and coding).

Currently I am working at KASI (Korea) as a postdoc researcher for NASA's SPHEREx (solar system science & pipeline development).

In theoretical approach, the main topics I focus on are:

• Thermal radiation, radiation pressures from airless bodies.
• DESTINY+ mission related (3200 Phaethon).

In observational approach, the main topics I focus on are:

• Optical & near-infrared (NIR) polarimetry/photometry
• Experience in HAWAII infrared array, as well as optical detectors
• Experience in extra-effort for accurate photometry (flat-field analyses, statistics, instrument parameter analyses, absolute/relative photometry of trailed objects, ...)
• Experience in detector parameter analysis (gain, readout noise, waveplate rotation, ...)

First-author & selected N-th author publications

• Bach+ (2024b) A&A: NIR polarimetry of Dawn mission targets (Ceres & Vesta) using NHAO NIC.
• Bach+ (2024a) A&A: NIR polarimetry of airless objects in the negative branch (codes here).
• Bach+ (2022) StGal (Instrum & Coding): NIR polarimetric pipeline development for NHAO NIC, detector parameter refinements (NICpolpy; tutorial here).
• Bach+ (2021) A&A (Theory): Dust ejection from (3200) Phaethon and near-Sun asteroids by thermal radiation pressure (TPM & calculation codes here).
• Bach+ (2019) JKAS: Optical photometry of (4179) Toutatis using KMTNet, determination of geometric albedo (photometry & analyses codes here).
• Bach+ (2017) AJ: Thermal modeling of comet-like objects (AKARI)
• Ishiguro, Bach+ (2022) MNRAS: Optical polarimetry (155140) 2005 UD. Determination of the anhydrous nature using polarimetry (photometry & MCMC codes here).
• Ishiguro+ (2017) AJ: Optical polarimetry (1566) Icarus in the positive branch (Pmax), determination of particle size
• Geem+ (2023) MNRAS: Optical spectroscopy of Hayabusa2# misison target (2001 CC21.)
• Geem+ (2022) MNRAS: Optical polarimetry (3200) Phaethon in the negative branch.
• Ito+ (2018) NatCo: Optical polarimetry (3200) Phaethon in the positive branch (Pmax).
• Kuroda+ (2021) ApJL: Optical polarimetry (162173) Ryugu in the positive branch (Pmax).
• Takahashi+ (2022) A&A: Optical polarimetry of the Earthshine on the Moon, found correlation with ocean coverage.

In prep: effect of fringe in NIR, dust ejection from Bennu, etc.

Scientific tool development & astronomical data reduction lectures in Python.

• Significant contribution to SNU Astronomical Observation classes (SNU_AOclass)
• See the 📌pinned repos below.

More details: PDF CV