Academic appointments

Aug 2025 – present

Sullivan Prize Fellow

Department of Astronomy, Indiana University, Bloomington, IN, USA

Sep 2022 – Jul 2025

Postdoctoral Fellow

Johns Hopkins University, Baltimore, MD, USA

Nov 2018 – Aug 2022

Postdoctoral Fellow

Academia Sinica Institute of Astronomy and Astrophysics (ASIAA), Taipei, Taiwan

Education

2015 – 2018

Doctor of Science (PhD), Astronomy

Astronomical Institute, Tohoku University, Sendai, Japan

2013 – 2015

Master of Science, Astronomy

Astronomical Institute, Tohoku University, Sendai, Japan

2009 – 2013

Bachelor of Science, Physics

Physics Department, Brawijaya University, Malang, Indonesia

Honors, awards & funding

  • 2025–Sullivan Prize Fellowship, Indiana University
  • 2024PI, JWST Cycle 2 GO 4246: Physical Properties of a Possible Galaxy Merger at z = 10.2 (funded, $223k)
  • 2013–2018Japanese Government MEXT Scholarship for Master’s and Doctoral studies
  • 2012, 2013Silver medal, Physics, Indonesian National Olympiad of Mathematics and Natural Sciences (undergraduate)

Telescope time & programs

  • PIJWST Cycle 2 GO 4246
  • Co-IRoman Cycle 1 GI program R-HIVE (2026): Mapping the SFH–Morphology–Environment connection with Roman
  • Co-IMore than a dozen JWST programs (Cycles 2–5 and DDT), including VENUS, CEDAR, BEACON, and MIRI spectroscopy at z ~ 10
  • Co-IALMA, MMT/Hectospec, Gemini/GMOS-N, SEIMEI/KOOLS-IFU, and Subaru/FOCAS programs

Collaborations

Euclid Consortium · 2021– Roman Science Collaboration · 2026– VENUS JWST · 2025– BEACON JWST · 2023– Cosmic Spring JWST · 2022– VST-SMASH · 2023– SDSS-IV/MaNGA · 2019–2022

Technical skills

  • LanguagesPython, C++, C
  • SoftwareDeveloper of GalSyn, piXedfit, and AHC
  • ML / statsscikit-learn, sbi (simulation-based inference), Bayesian inference
  • Astronomyastropy, photutils, specutils, reproject, astroquery, Skyfield
  • HPC & toolsBig Red 200 and Quartz (IU), ESA Datalabs (Euclid), SQL, Git/GitHub, Sphinx

Mentoring & teaching

  • 2026Supervising undergraduate Hemani Ambelal (IU Alice Palma Summer Research Program): inside-out quenching and AGN feedback in TNG50
  • 2025–Supervising undergraduate Ðinh Trung Quốc Anh (International University, Vietnam): SFHs of massive galaxies at z > 3
  • 2024–Co-supervising graduate student Novan Saputra Haryana (Tohoku University): resolved properties of massive quiescent galaxies with JWST
  • 2022–2024Co-supervised graduate student Han-Tang Lin (NCU, Taiwan) and undergraduates from Indonesia, Bangladesh, and the USA (incl. STScI SASP 2023)
  • 2022Lecturer, International Virtual Course on Astrophysical Modeling and Computation, ITB, Indonesia

Service & leadership

  • 2022–Referee for ApJ, A&A, and MNRAS
  • 2024External reviewer, ALMA Large Programs (Cycle 11)
  • 2023–2024PI and lead of JWST GO 4246 science team
  • 2019–2021Co-chair of the monthly Subaru science meeting at ASIAA

Selected invited talks

  • 08/2026Plenary talk, ISoPA 2026, State University of Surabaya, Indonesia: Observations of galaxies in the early universe in the era of JWST
  • 03/2026Colloquium, National Research and Innovation Agency of Indonesia (BRIN): Spatially resolved view of galaxy evolution across cosmic time
  • 12/2025GREENS meeting, STScI: Young star clusters and star-forming clumps in the Cosmic Spear at z = 6.2
  • 11/2025Colloquium, Department of Astronomy, Indiana University
  • 06/2025Pan Survey SED Fitting Forum: Spatially resolving stellar populations in galaxies across cosmic time
  • 08/2023HotSci Summer Colloquium, STScI/JHU

The full list of colloquia, conference talks, and public outreach is in the full CV.