About

Please note: I just moved to this new website, so I'm still in the process of adding content. Thanks for your patience.

I am a data-driven dynamicist interested in a broad range of problems in exoplanetary science. In particular, I study the formation and evolution, orbital architectures, and interiors/atmospheres of exoplanets. I address these problems using a synergistic approach involving celestial mechanics theory, numerical simulations, and statistical methods.

I am currently a NASA Sagan Fellow at Princeton University. I obtained my PhD in Astronomy from Yale University in May 2020, and I was an NSF Graduate Research Fellow from 2017-2020. My thesis was titled "Data-Driven Dynamics of Planetary Systems". I spent my first year of graduate school at the University of California Santa Cruz and subsequently transferred to Yale to keep working with my advisor, Professor Greg Laughlin. Before that, I was an undergraduate at the University of St. Thomas in St. Paul, Minnesota, where I obtained bachelor's degrees in physics and applied mathematics in 2015.

You can reach me at sarah.millholland [at] princeton.edu.

Hiking near Lake Michigan in Ludington, MI.

Publications

First Author Publications

  1. Millholland, S. & Spalding, C. "Formation of Ultra-Short-Period Planets by Obliquity-Driven Tidal Runaway." 2020, AAS Journals, submitted
  2. Millholland, S., Petigura, E., & Batygin, K. "Tidal Inflation Reconciles Low-Density Sub-Saturns with Core Accretion." 2020, ApJ, 897, 7 [ADS]
  3. Millholland, S. "Tidally-Induced Radius Inflation of Sub-Neptunes." 2019, ApJ, 886, 72 [ADS]
  4. Millholland, S. & Batygin, K. "Excitation of Planetary Obliquities Through Planet-Disk Interactions." 2019, ApJ, 876, 119 [ADS]
  5. Millholland, S. & Laughlin, G. "Obliquity-Driven Sculpting of Exoplanetary Systems." 2019, Nature Astronomy, 3, 424, arXiv: 1903.01386 [ADS]
  6. Millholland, S. & Laughlin, G. "Obliquity Tides May Drive WASP-12b's Rapid Orbital Decay." 2018, ApJL, 869, L15 [ADS]
  7. Millholland, S., Laughlin, G., Teske, J., et al. "New Constraints on Gliese 876 -- Exemplar of Mean-Motion Resonance." 2018, AJ, 155, 106 [ADS]
  8. Millholland, S., Wang, S., & Laughlin, G. "Kepler Multi-Planet Systems Exhibit Unexpected Intra-system Uniformity in Mass and Radius." 2017, ApJL, 849, L33 AAS Nova [ADS]
  9. Millholland, S. & Laughlin, G. "Supervised Learning Detection of Sixty Non-Transiting Hot Jupiter Candidates." 2017, AJ, 154, 83 [ADS]
  10. Millholland, S. & Laughlin, G. "Constraints on Planet Nine's Orbit and Sky Position within a Framework of Mean-motion Resonances." 2017, AJ, 153, 91 [ADS]
  11. Millholland, S., Wang, S., & Laughlin, G. "On the Detection of Non-Transiting Hot Jupiters in Multiple Planet Systems." 2016, ApJL, 823, L7 [ADS]

Second Author Publications

  1. Spalding, C. & Millholland, S. "Stellar Oblateness versus Distant Giants in Exciting Kepler Planet Mutual Inclinations." 2020, AJ, in press
  2. Adams, A. D., Millholland, S., & Laughlin, G. "Signatures of Obliquity in Thermal Phase Curves of Hot Jupiters." 2019, AJ, 158, 3 [ADS]

Other Co-Author Publications

  1. Davis, A., Wang, S., Jones, M., Eastman, J., Günther, M., Stassun, K., et al. including Millholland, S. [51 total] "TOI 564 b and TOI 905 b: Grazing and Fully Transiting Hot Jupiters Discovered by TESS." 2020, AJ, in press
  2. Bryan, M., Chiang, E., Bowler, B. P., Morley, C. V, Millholland, S., Blunt, S., Ashok, K. B., Nielsen, E., Ngo, H., Mawet, D., Knutson, H. A. "First Measurement of an Extrasolar Planetary-Mass Companion Obliquity." 2019, AAS Journals, submitted [ADS]
  3. Wang, S., Jones, M., Shporer, A., Fulton, B. J., Paredes, L. A., Trifonov, T., Kossakowski, D., Eastman, J., Redfield, S., Günther, M. N., Kreidberg, L., Huang, C. X., Millholland, S., et al. [60 total]  "HD 202772Ab: A Transiting Hot Jupiter Around a Bright, Mildly Evolved Star in a Visual Binary Discovered by TESS." 2019, AJ, 157, 51 [ADS]
  4. Becker, J. C., Khain, T., Hamilton, S. J., Adams, F. C., Gerdes, D. W., Zullo, L., Franson, K., Millholland, S., et al. [66 total] "Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination." 2018, AJ, 156, 81 [ADS]
  5. Janvier, M., Savcheva, A., Pariat, E., Tassev, S., Millholland, S., Bommier, V., McCauley, P., McKillop, S., Dougan, F. "Evolution of Flare Ribbons, Electric Currents and Quasi-separatrix Layers During an X-class Flare." 2016, A&A, 591, A141 [ADS]

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Preformatted

i = 0;

while (!deck.isInOrder()) {
    print 'Iteration ' + i;
    deck.shuffle();
    i++;
}

print 'It took ' + i + ' iterations to sort the deck.';

Lists

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  • Dolor pulvinar etiam.
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Alternate

  • Dolor pulvinar etiam.
  • Sagittis adipiscing.
  • Felis enim feugiat.

Ordered

  1. Dolor pulvinar etiam.
  2. Etiam vel felis viverra.
  3. Felis enim feugiat.
  4. Dolor pulvinar etiam.
  5. Etiam vel felis lorem.
  6. Felis enim et feugiat.

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Name Description Price
Item One Ante turpis integer aliquet porttitor. 29.99
Item Two Vis ac commodo adipiscing arcu aliquet. 19.99
Item Three Morbi faucibus arcu accumsan lorem. 29.99
Item Four Vitae integer tempus condimentum. 19.99
Item Five Ante turpis integer aliquet porttitor. 29.99
100.00

Alternate

Name Description Price
Item One Ante turpis integer aliquet porttitor. 29.99
Item Two Vis ac commodo adipiscing arcu aliquet. 19.99
Item Three Morbi faucibus arcu accumsan lorem. 29.99
Item Four Vitae integer tempus condimentum. 19.99
Item Five Ante turpis integer aliquet porttitor. 29.99
100.00

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