ysbach / kmtnet_toutatis

This is a repository which will contain jupyter notebooks and other related codes, so that you can reproduce the results that is shown in BachYP+ 2019 JKAS (under review).

Yoonsoo P. Bach

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

PDF CV

(last update 2024-04-18)

	SCI 1st author	SCI nth author	non-SCI 1st author	non-SCI nth author
Published	5	11	1	-
Accepted
Under-Review		1
In Prep.	3	3

Profiles:

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

Research Interest

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, ...)

Selected Papers

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.

Coding & Education

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

Support

kmtnet_toutatis's Issues

add residual plot for shape model fitting (Fig 2)

During the internal discussion after the first comments from two reviewers, Hongu Yang suggested to put a residual plot for the shape model fitting.

add seeing FWHM analysis of KMTNet observatories

During the internal discussion, Hong-Kyu Moon provided the FWHM data for observatoris of KMTNet.
Youngmin JeongAhn provided official FWHM log.

Observation condition including seeing is well-archived in the following page
http://kmtnet.kasi.re.kr/kmtnet-monitor/report/
You can find it by clicking "rep". Seeing is measured three times per night.

Add this and analysis of the FWHM values to the notebooks, as well as updating the observational journal of the original draft.