WARD S. HOWARD CURRICULUM VITAE & PUBLICATION LIST Revised: September 2020

Department of Physics and Astronomy Phone upon request University of North Carolina at Chapel Hill wshoward [at] unc.edu Philips Hall, CB #3255 120 E. Cameron Ave.

Research Stellar flaring of cool stars Interests time-domain flare identification and characterization population studies of flare rates versus stellar mass, rotation, and age multi-wavelength characterization of flares relationships between flares and starspots habitability impacts of large flares on terrestrial planets Exoplanet follow-up and characterization measurement of stellar rotation periods to inform RV semi-amplitudes high-resolution imaging of faint host stars to candidate exoplanets

Citizenship United States of America

Employment Graduate Research Assistant, University of North Carolina Jun 2016+ Principal Investigator for Multi-Wavelength Superflares And Planetary Habitability Team Lead of the EvryFlare Survey and Collaboration

Education University of North Carolina at Chapel Hill Aug 2015 – Ph.D. in Physics and Astronomy (expected) May 2021 Thesis: Investigating Exoplanet Habitability and the Stellar Magnetism of Cool Stars via Superflares, Starspots, and Stellar Rotation. Advisor: Nicholas M. Law

Union University Aug 2011 – B.S. in Physics and Mathematics May 2015

Externally PI for “Multi-Wavelength Superflares And Planetary Habitability” Sept 2020 – Awarded NASA TESS-GO-3174; $50k Aug 2021 Grants co-I for "The Origin and Impact of Flares in the Closest Planetary May 2019 – System Proxima Centauri" NASA HST-GO-15651.008-A; $57k, May 2020 in collaboration with M. MacGregor (Carnegie)

Ward S. Howard Page 1 of 5

Evryscope data analysis lead for "A Southern Hemisphere May 2019 – RV Follow-up Program for TESS"; NASA Exoplanet Research May 2020 Program 80NSSC19K0290; total award $417k, UNC share $28k

Students & University of North Carolina at Chapel Hill Teaching Supervised undergraduate research projects 2018: Aaron Pietraallo (PHY 395: Machine classification of active red dwarfs) 2017: Aaron Pietraallo (PHY 295: M-giant variability in Evryscope data)

Teaching Assistantships Astronomy 101L Aug 2019 – Taught four lab sections using UNC’s robotic “Skynet” telescopes May 2016

Professional 8. The EvryFlare Survey: Temperature Evolution and Habitability Impacts of Talks Superflares Observed Simultaneously by Evryscope and TESS (invited seminar; JILA and CASA at CU Boulder; Sept 2020) 7. The EvryFlare Survey: Temperature Evolution and Habitability Impacts of Superflares Observed Simultaneously by Evryscope and TESS (invited seminar; Carnegie EPL Astronomy; Sept 2020) 6. The EvryFlare Survey: Temperature Evolution and Habitability Impacts of Superflares Observed Simultaneously by Evryscope and TESS (invited seminar; Exoplanet Tea at MIT; Aug 2020) 5. The EvryFlare Survey: High-cadence flare temperatures of a large sample of superflares and starspots observed simultaneously by Evryscope and TESS (contributed talk; AAS 236; Jun 2020) 4. Evryscope flares as probes of the space weather environments of Proxima b and the nearest rocky exoplanets (contributed talk; AAS 233; Jan 2019) 3. Evryscope detection of the first Proxima superflare: Impacts on the atmosphere and habitability of Proxima b (contributed talk; CCTP3; Aug 2018) 2. Evryscope detection of the first Proxima superflare: Habitability impacts and Multi-Messenger opportunities (contributed talk; Radio Splinter at Cool Stars 20; July 2018) 1. Stellar activity for every TESS star in the Southern sky (contributed talk; AAS 231; Jan 2018)

Professional Referee for Astronomy and Astrophysics (A&A) Service Referee for the Monthly Notices of the Royal Astronomical Society (MNRAS)

Ward S. Howard Page 2 of 5

Public UNC Physics & Astronomy Outreach Crew Aug 2016 – May 2018 Outreach Evryscope Public Outreach Contact Aug 2016 – Aug 2019 Hosted the Twitter @astrotweeps outreach account twice (a service run by astronomer Meg Schwamb)

Media My first-author paper on the Evryscope discovery of a superflare from Proxima Coverage Centauri was covered in Forbes, Popular Mechanics, New Scientist, El Pais, space.com, Ars Technica, and a variety of other outlets worldwide. The first paper from my larger EvryFlare Survey was covered in Astrobites

Public Do Superflares Make Proxima b & the Nearest Terrestrial Mar 2019 Talks Exoplanets Uninhabitable? (Invited speaker; Triad Starfest; Jamestown, NC) Superflares on the Nearest Star to the Sun: Is its Earth-mass planet May 2018 Uninhabitable? (Astronomy on Tap NC; Durham NC)

PUBLICATION LIST

16 refereed papers, 124 total citations, 55 citations to 1st-author papers First-author papers are listed in bold.

Refereed 16. EvryFlare. III. Temperature Evolution and Habitability Impacts of Papers Dozens of Superflares Observed Simultaneously by Evryscope and TESS Howard, Ward S.; Corbett, Hank; Law, Nicholas M. and 8 co-authors Accepted to ApJ, in press.

15. Evryscope-South Survey of Upper- and Pre-main Sequence Solar Neighborhood Stars Galliher, Nathan W.; Ratzloff, Jeffrey K.; Corbett, Henry and 5 co-authors Accepted to PASP, in press.

14. Evryscope and K2 Constraints on TRAPPIST-1 Superflare Occurrence and Planetary Habitability Glazier, Amy L.; Howard, Ward S.; Corbett, Hank and 4 co-authors Astrophysical Journal, Volume 900 (2020)

13. Multiwavelength Photometry and Progenitor Analysis of the Nova V906 Car Wee, Jerrick; Blagorodnova, Nadejda; Penprase, Bryan Edward and 12 co- authors Astrophysical Journal, Volume 899 (2020)

12. EvryFlare. II. Rotation Periods of the Cool Flare Stars in TESS across Half the Southern Sky Howard, Ward S.; Corbett, Hank; Law, Nicholas M. and 6 co-authors

Ward S. Howard Page 3 of 5

Astrophysical Journal, Volume 895 (2020)

11. Hot Subdwarf All Southern Sky Fast Transit Survey with the Evryscope Ratzloff, Jeffrey K.; Barlow, Brad N.; Németh, Péter and 6 co-authors Astrophysical Journal, Volume 890 (2020)

10. EVR-CB-001: An Evolving, Progenitor, White Dwarf Compact Binary Discovered with the Evryscope Ratzloff, Jeffrey K.; Barlow, Brad N.; Kupfer, Thomas and 7 co-authors Astrophysical Journal, Volume 883 (2019)

9. Variables in the Southern Polar Region Evryscope 2016 Data Set Ratzloff, Jeffrey K.; Corbett, Henry T.; Law, Nicholas M. and 6 co-authors Publications of the Astronomical Society of the Pacific, Volume 131 (2019)

8. EvryFlare. I. Long-term Evryscope Monitoring of Flares from the Cool Stars across Half the Southern Sky Howard, Ward S.; Corbett, Hank; Law, Nicholas M. and 5 co-authors Astrophysical Journal, Volume 881 (2019)

7. Building the Evryscope: Hardware Design and Performance Ratzloff, Jeffrey K.; Law, Nicholas M.; Fors, Octavi and 4 co-authors Publications of the Astronomical Society of the Pacific, Volume 131 (2019)

6. Bright Opportunities for Atmospheric Characterization of Small Planets: Masses and Radii of K2-3 b, c, and d and GJ3470 b from Radial Velocity Measurements and Spitzer Transits Kosiarek, Molly R.; Crossfield, Ian J. M.; Hardegree-Ullman, Kevin K. and 36 co-authors Astronomical Journal, Volume 157 (2019)

5. Young and Eccentric: The Quadruple System HD 86588 Tokovinin, Andrei; Corbett, Hank; Fors, Octavi and 5 co-authors Astronomical Journal, Volume 156 (2018)

4. Robo-AO Kepler Survey. V. The Effect of Physically Associated Stellar Companions on Planetary Systems Ziegler, Carl; Law, Nicholas M.; Baranec, Christoph and 7 co-authors Astronomical Journal, Volume 156 (2018)

3. The First Naked-eye Superflare Detected from Proxima Centauri Howard, Ward S.; Tilley, Matt A.; Corbett, Hank and 11 co-authors Astrophysical Journal Letters, Volume 860 (2018)

Ward S. Howard Page 4 of 5

2. Robo-AO Kepler Survey. IV. The Effect of Nearby Stars on 3857 Planetary Candidate Systems Ziegler, Carl; Law, Nicholas M.; Baranec, Christoph and 7 co-authors Astronomical Journal, Volume 155 (2018)

1. Laser-only Adaptive Optics Achieves Significant Image Quality Gains Compared to Seeing-limited Observations over the Entire Sky Howard, Ward S.; Law, Nicholas M.; Ziegler, Carl A. and 2 co-authors Astronomical Journal, Volume 155 (2018)

Ward S. Howard Page 5 of 5