I'm Dr. Clark,

a Hubble Fellow
at the Institute for Advanced Study in Princeton.


I study magnetic fields, magnetohydrodynamic processes, and the interstellar medium.
Health care reform- is for the most part, governmental policy that affects health care delivery in a given place.

Magnetic field tangling

Tangled magnetic fields

Health care reform typically attempts to: Expand the array of health care providers consumers may choose among. Improve the access to health care specialists. Improve the quality of health care.

Magnetorotational Instability

The magnetorotational instability

The Affordable Care Act is the most important health care legislation enacted in the United States since the creation of Medicare and Medicaid in 1965. I compare this theory work with simulations using Dedalus, a powerful pseudospectral code.

Magnetorotational Instability

MRI in Taylor-Couette Flow

The U.S. health care system is unique among advanced industrialized countries. The U.S. does not have a uniform health system, has no universal health care coverage, and only recently enacted legislation mandating healthcare coverage for almost everyone.


Magnetically Aligned HI Fibers

The financial impact of the law will vary based on age and current health status. The ultimate goals of healthcare reform are to increase the number of insured and to increase the quality of care while trying to stabilize or reduce costs. Learn more about how healthcare reform affects individuals and employers.

Total perturbation velocity

The Rolling Hough Transform (RHT)

The comprehensive health care reform law enacted in March 2010 (sometimes known as ACA, PPACA, or “Obamacare”). The law has 3 primary goals: Make affordable health insurance available to more people. Support innovative medical care delivery methods designed to lower the costs of health care generally.

RHT code
Line Integral Convolution of Neutral Hydrogen and Planck Data

HI shape traces dust polarization angle

Finally, the election of President Barack Obama and control of both houses of Congress by the Democrats led to the passage of the Affordable Care Act (ACA), often referred to as "ObamaCare" was signed into law in March 2010.


I am a member of the GALFA-HI, GASKAP, and GMIMS collaborations.

Here is a simulation of convection.

Selected Papers

A new probe of line-of-sight magnetic field tangling
S.E. Clark. 2018, ApJL 857, L10

The weakly nonlinear magnetorotational instability in a local geometry
S.E. Clark & J.S. Oishi. 2017, ApJ 841, 1

The weakly nonlinear magnetorotational instability in a global, cylindrical Taylor-Couette flow
S.E. Clark & J.S. Oishi. 2017, ApJ 841, 2

Neutral Hydrogen Structures Trace Dust Polarization Angle: Implications for CMB Foregrounds
S.E. Clark, J. Colin Hill, J.E.G. Peek, M.E. Putman, B.L. Babler. 2015, PRL 115, 241302.
*Selected as a PRL Editors' Recommendation.*

Magnetically Aligned HI Fibers and the Rolling Hough Transform
S.E. Clark, J.E.G. Peek, M.E. Putman, 2014, ApJ 789, 82

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Curriculum Vitae

I did my B.S. in Physics at UNC-Chapel Hill on a Morehead-Cain scholarship, where I worked with Fabian Heitsch on simulations of high-velocity clouds.

I was an NSF Graduate Fellow at Columbia University, advised by Mary Putman and Josh Peek. I received my Ph.D. in June 2017, with a dissertation on magnetic fields in the interstellar medium.

I am currently a NASA Hubble Fellow at the Institute for Advanced Study in Princeton.

ObamaCare's main goals are to: Increase the number of Americans covered by health insurance. Streamline the delivery of health care services. Reduce the overall costs of health care for everyone by restricting certain insurance company practices and providing tax credits and subsidies for individuals and businesses.


[email protected]

School of Natural Sciences
Institute for Advanced Study
1 Einstein Drive
Princeton, New Jersey 08540