Haeun Chung | Curriculum Vitae University of Arizona, Steward Observatory 933 N Cherry Ave, Rm. N432, Tucson, AZ, 85719 – USA T +1 (520) 621 9262 • B [email protected] Í https://astrohchung.github.io • Citizenship: Korean

Appointments University of Arizona Tucson, AZ, USA Assistant Research Professor 07/2021 - present University of Arizona Tucson, AZ, USA Postdoctoral Research Associate 09/2019 - 06/2021 Supervisor: Prof. Erika Hamden Korea Institute for Advanced Study (KIAS) Seoul, Korea Student Fellow 05/2015 - 08/2019 Advisor: Prof. Changbom Park Korea Institute for Advanced Study (KIAS) Seoul, Korea Research Assistant (Astrophysics Group) 03/2012 - 08/2019 Advisor: Prof. Changbom Park Inter-University Centre for Astronomy and Astrophysics (IUCAA) Pune, India Visiting Research Scholar (Instrumentation Group) Advisor: Prof. A. N. Ramaprakash Multiple visits: 07/2012 - 02/2013, 07/2013 - 01/2014, 06/2014 - 08/2014 06/2015 - 08/2015, 03/2016 - 06/2016, 11/2018 - 02/2019 University of Minnesota, Twin Cities Minneapolis, MN, USA Undergraduate Researcher 01/2011 - 05/2011 Advisor: Prof. Terry Jay Jones, Worked on MMTPol hexapod test Education Seoul National University Seoul, Korea Ph.D. in Astronomy 09/2012 - 08/2019 Advisor: Prof. Yong-Sun Park, Co-Advisor: Prof. Changbom Park (KIAS) Thesis: Dynamical Properties of Nearby Galaxies and Their Environmental Dependence Pohang University of Science and Technology (POSTECH) Pohang, Korea B.S. in Physics, cum laude 03/2008 - 02/2012 University of Minnesota, Twin Cites Minneapolis, MN, USA College of Science and Engineering, Exchange Student 09/2010 - 05/2011

1/7 Last update: September 17th, 2021 Research Grants 2020 NASA Astrophysics Pioneers (20-Pioneers20-0004, Funded) Aspera: Revealing the Diffuse Universe ($20 Million) 2021 PI: C. J. Vargas. Dr. Chung made a significant/major contribution as a Co-Investigator 2020 NASA Astrophysics Research and Analysis (20-APRA20-0161, Declined) DIFFUSat: A UV-Optical Mission Targeting the Dim and Dark Universe (∼$7 Million) PI: D. Schiminovich, Co-I: H. Chung Current Research Aspera Co-Investigator, Project Scientist Aspera is a Small-Satellite UV space telescope focused on imag- ing emission from O VI coronal gas in nearby edge-on galaxies, funded by 2020 NASA Astrophysics Pioneers Program ($20 Million). Dr. Carlos Vargas is Principal Investigator (PI), and Prof. Erika Hamden is Deputy-PI, both at the University of Arizona. As a project scientist, Dr. Chung is leading Aspera instrument team and overall payload development.

Hyperion Co-Investigator Hyperion is a Medium-size Explorer class (MIDEX) space telescope mission concept to observe molecular hydrogen at the boundaries of molecular clouds in nearby, galactic star-forming regions. PI is Prof. Erika Hamden at the University of Arizona. Hyperion was proposed to NASA SMEX AO in August 2019, and currently in formulation for MIDEX AO 2021 ($290 Million cost cap). As a Co-I, Dr. Chung estimates its payload performance and simulates the resulting spectrum.

Faint Intergalactic Redshifted Emission Balloon (FIREBall-2) FIREBall-2 is a NASA funded UV balloon-borne telescope designed to observe faint emission from the outskirts of distant galaxies. It was once launched from the NASA Columbia Scientific Balloon Facility in Fort Sumner, NM. PI is Prof. Christopher Martin at California Institute of Technology. Dr. Chung works on alignment of spectrograph optics and preparation of its second flight, which is planned in summer 2022.

K-SPEC K-SPEC is a ground-based multi-object spectrograph designed to survey the complete redshift survey of galaxies in the local universe. The instrument will be mounted on 1.6m KMTNet tele- scope at Siding Spring Observatory in Australia and 2.7m Harlan J. Smith Telescope at McDonald Observatory in Texas, USA. PIs are Dr. Ho Seong Hwang at Seoul National University, Korea and Dr. Jae-Woo Kim at Korea Astronomy and Space Science Institute, Korea. Dr. Chung works on conceptual design and performance estimation of the instrument, as well as optical design of the wide-field-corrector.

DiffuSAT Co-Investigator DiffuSAT is a 3U CubeSat UV-Optical spectroscopic mission concept designed to observe faint and diffuse ionized gas in dark matter halos, circumgalactic medium, and the Milky Way. PI is Prof. David Schiminovich at Columbia University. DiffuSAT was proposed to

2/7 Last update: September 17th, 2021 2020 NASA APRA AO (∼$7 Million) in Dec. 2020. As a Co-I, Dr. Chung estimated its payload performance and contributed to proposal writing.

LBT MODS Exposure time calculator Developer Dr. Chung is developing a exposure time/signal-to-noise ratio calculator for LBT MODS with Dr. Olga Kuhn at Large Binocular Telescope Observatory (LBTO). The calculator will be based on the generic exposure time/signal-to-noise ratio calculator for the ground and space based imager/spectrographs developed by Dr. Chung. The calculator will be available in Web, similar to DOTIFS S/N calculator (https://etc.astrohchung.com). Past Work Devasthal Optical Telescope Integral Field Spectrograph DOTIFS is an optical multi-integral field unit spectrograph designed to observe nearby galaxies with 3D spectroscopy. It will be mounted on the 3.6m Devasthal Optical Telescope in Nainital, India. Previously, Dr. Chung had led the overall conceptual design, spectrograph optical design, and software development (Data simulator and Signal-to-noise ratio calculator) of DOTIFS. Teaching Experiences { Introduction to Astrophysics, Teaching Assistant, Fall 2011 { General Physics II, Tutor, Fall 2011 { General Physics I, Teaching Mentor, Student Mentoring Program, Spring 2010 { General Physics I, Teaching Assistant, Spring 2009 Scholarships Student Fellowship Korea Institute for Advanced Study 2015 - 2019 Merit-Based Scholarship Seoul National University 2015, 2016 SNU Development Fund (Inha Kim) Scholarship Department of Physics and Astronomy, Seoul National University 2014 Study Abroad Scholarship Tuition and stipend for exchange students, POSTECH 2010 National Scholarship For Science and Engineering Full tuition awarded by National Research Foundation of Korea for 7 semesters 2008 - 2011 Computer Skills Programming Language: Python, IDL, C/C++, Zemax Programming Language Software: Zemax OpticStudio, SolidWorks, Git, GSolver Data Analysis Code: pPXF, STARLIGHT

3/7 Last update: September 17th, 2021 Research Interests Interests in astronomical instrumentation and observational astronomy, including: { Optical Design { UV/VIS spectroscopy { Integral Field Spectrograph { Software Development { System Engineering { Circumgalactic Medium { Galaxy Kinematics and Dynamics { Galaxy Formation and Evolution { Environmental Effects on Galaxy Properties { Galaxy Interactions and Mergers Academic References { Prof. Erika Hamden { Prof. David Schiminovich Assistant Professor of Astronomy Professor of Astronomy Steward Observatory Department of Astronomy University of Arizona Columbia University +1-520-621-9524 +1-212-854-7819 [email protected] [email protected]

{ Prof. Ho Seong Hwang { Prof. Changbom Park Associate Professor of Astronomy Professor of Physics Department of Physics and Astronomy School of Physics Seoul National University Korea Institute for Advanced Study +82-2-880-8150 +82-2-958-3751 [email protected] [email protected]

{ Prof. A. N. Ramaprakash { Prof. Yong-Sun Park Professor Professor of Astronomy Inter-University Centre for Astronomy and Department of Physics and Astronomy Astrophysics Seoul National University +91-20-2560-4109 +82-2-880-8979 [email protected] [email protected]

4/7 Last update: September 17th, 2021 Publications (ADS Link)

Refereed Publications, Submitted...... 1. Properties of Fast and Slow Bars Classified by Epicyclic Frequency Curves from Photometry of Barred Galaxies Lee, Y., Park, M., Hwang, H. S., Ann, H. B., Chung, H., Kim, T., 2021, submitted to ApJ1

Refereed Publications...... 14. PSF Deconvolution of the IFU Data and Restoration of Galaxy Stellar Kinematics Chung, H., Park, C., Park, Y., 2021, ApJS2, in press 13. Rotation Curves of Galaxies and Their Dependence on Morphology and Stellar Mass Yoon, Y., Park, C., Chung, H., Zhang, K., 2021, ApJ, in press 12. Revisiting FUSE O VI Emission in galaxy halos Chung, H., Vargas, C. J., Hamden, E., 2021, ApJ, 916, 7 11. Evolution of the spin of late-type galaxies caused by galaxy-galaxy interactions Hwang, J., Park, C., Nam, S., Chung, H., 2021, JKAS3, 54, 71 10. Long-slit cross-dispersion spectroscopy for Hyperion UV space telescope Choi, H., Trump, I., Feng, Y., Kang, H., Berkson, J., Chung, H., Hamden, E., Kim, D., 2021, JATIS4, 7(1), 01400 9. The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra SDSS Collaboration (Chung, H.), 2020, ApJS, 249, 3 8. The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library SDSS Collaboration (Chung, H.), 2019, ApJS, 240, 23 7. Noise characterization of IUCAA digital sampling array controller Chattopadhyay, S., Ramaprakash, A. N., Joshi, B., Chordia, P. A., Burse, M. P., Chillal, K., Sinha, S., Punnadi, S. P., Rikame, K., Hong, S. E., Paranjpye, D., Chung, H., Park. C., Omar, A., 2018, JATIS, 4, 036002 6. A study of environmental effects on galaxy spin using MaNGA data Lee, J. C., Hwang, H. S., Chung, H., 2018, MNRAS5, 477, 1567 5. The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the Extended Baryon Oscillation Spectroscopic Survey and from the Second Phase of the Apache Point Observatory Galactic Evolution Experiment SDSS Collaboration (Chung, H.), 2018, ApJS, 235, 42

1ApJ: The Astrophysical Journal 2ApJS: The Astrophysical Journal Supplement Series 3JKAS: Journal of the Korean Astronomical Society 4JATIS: Journal of Astronomical Telescopes, Instruments, and Systems 5MNRAS: Monthly Notices of the Royal Astronomical Society

5/7 Last update: September 17th, 2021 4. The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey MApping Nearby Galaxies at Apache Point Observatory SDSS Collaboration (Chung, H.), 2017, ApJS, 233, 25 3. Star Formation Activity of Barred Spiral Galaxies Kim, E., Hwang, H. S., Chung, H., Lee, G.H., Park, C., Cervantes Sodi, B., Kim, S. S., 2017, ApJ, 845, 83 2. Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies and the Distant Universe SDSS Collaboration (Chung, H.), 2017, AJ6, 154, 28 1. Stellar Populations of Early-type Galaxies with Mid-infrared Excess Emission Ko, J., Chung, H., Hwang, H. S., Lee, J. C., 2016, ApJ, 820, 132

Conference Proceedings...... 7. Aspera: the UV SmallSat telescope to detect and map the warm-hot gas phase in nearby galaxy halos Chung, H., Vargas, C. J., Hamden, E., McMahon, T., et al., 2021, Proc. SPIE7, 11819, 1181903 6. Multiple rooks of chess: a generic integral field unit deployment technique Chattopadhyay, S., Ramaprakash, A. N., Khodade, P., Chakravarti, K., Shaikh, S., Chung, H., Hong, S. E., 2018, Proc. SPIE, 10706, 107065S 5. A new photolithography based technique to mass produce microlens+fibre based integralfield units (IFUs) for 2D spectroscopy Chattopadhyay, S., Joshi, V., Ramaprakash, A. N., Modi, D., Kohak, A., Chung, H., 2018, Proc. SPIE, 10706, 107062D 4. DOTIFS: fore-optics and calibration unit design Chung, H., Ramaprakash, A. N., Khodade, P., Rajarshi, C. V., Chattopadhyay, S., Chordia, P. A., Omar, A., Park, C., 2018 Proc. SPIE, 10702, 107027U 3. DOTIFS: spectrograph optical and opto-mechanical design Chung, H., Ramaprakash, A. N., Khodade, P., Modi, D., Rajarshi, C. V., Chattopadhyay, S., Chordia, P. A., Joshi, V., Hong, S. E., Omar. A., Ravindranath. S., Park, Y. S., Park, C., 2018 Proc. SPIE, 10702, 107027A 2. Development Status of the Dotifs Data Simulator and the Reduction Package Chung, H., Ramaprakash, A. N., Park, C. 2015, PKAS8, 30, 675 1. DOTIFS: a new multi-IFU optical spectrograph for the 3.6-m Devasthal optical telescope Chung, H., Ramaprakash, A. N., Omar, A., Ravindranath, S., Chattopadhyay, S., Rajarshi, C. V., Khodade, P. 2014 Proc. SPIE, 9147, 91470V Selected Conferences and Seminars 12. Oral Presentation, Aspera: the UV SmallSat telescope to detect and map the warm-hot gas phase in nearby galaxy halos SPIE Optical Engineering + Applications, San Diego, CA, USA, Aug 1-5, 2021

6AJ: The Astronomical Journal 7Proc. SPIE: Proceedings of SPIE 8PKAS: Publications of the Korean Astronomical Society

6/7 Last update: September 17th, 2021 11. Oral Presentation, Aspera: Instrument overview and performance 237th American Astronomical Society Meeting, Virtual, Jan. 10-15, 2021 10. Seminar Talk, Recovery of galaxy stellar kinematics through PSF deconvolution of the optical IFU data Steward / NOIRLab Galaxy Group Talk, Virtual, Nov. 13. 2020 9. Poster, Rotation Curves of SDSS-IV MaNGA Galaxies and their Mass and Environmental Dependence The 8th KIAS workshop on Cosmology and Structure Formation, Seoul, Korea, Nov. 4-9, 2018 8. Oral Presentation, Rotation Curves of SDSS-IV MaNGA Galaxies and their Mass and Environmental Dependence 2018 SDSS-IV Collaboration Meeting, Seoul, Korea, Jun. 18-22, 2018 7. Poster, DOTIFS: spectrograph optical and opto-mechanical design 2018 SPIE Astronomical Telescopes and Instrumentation, Austin, TX, USA, Jun. 10-15, 2018 6. Poster, DOTIFS: fore-optics and calibration unit design 2018 SPIE Astronomical Telescopes and Instrumentation, Austin, TX, USA, Jun. 10-15, 2018 5. Seminar Talk, DOTIFS: a new multi-IFU optical spectrograph for the 3.6-m Devasthal optical telescope - overview and development status Canada-France-Hawaii Telescope Headquarters, Waimea, HI, USA, Jan. 24, 2018 4. Poster, Stellar Populations of early-type galaxies with mid-infrared excess emission The 7th KIAS workshop on Cosmology and Structure Formation, Seoul, Korea, Oct. 30-Nov. 4, 2016 3. Poster, DOTIFS: a new optical multi-Integral Field Unit spectrograph for the 3.6m Devasthal optical telescope The 10th East-Asia Meeting on Astronomy, Seoul, Korea, Sep. 26-30, 2016 2. Poster, Development Status of the DOTIFS Data Simulator and the Reduction Package 12th Asia-Pacific Regional IAU Meeting, Daejeon, Korea, Aug. 18-22, 2014 1. Oral Presentation, DOTIFS: a new multi-IFU optical spectrograph for the 3.6-m Devasthal optical telescope 2014 SPIE Astronomical Telescopes and Instrumentation, Montréal, Québec, Canada, Jun. 22-27, 2014

7/7 Last update: September 17th, 2021