Active Research

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Simulating the Surfaces of Stars

Joel Tanner, Sarbani Basu, Pierre Demarque, Frank Robinson

Using 3D radiation hydrodynamic simulations, we model the surface layers of low-mass main sequence stars with the aim of improving stellar models. Traditional 1D models typically use the mixing length theory (MLT) to describe convection. Although MLT can adequately describe the gas dynamics in regions of efficient convective energy transport, it breaks down in regions of transition from convective to radiative energy transport, which occurs near the surface of stars with convective envelopes.

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Image Credits: (header) Image of prominence, SOHO (ESA & NASA)

News

03.15.2013 Priyamvada Natarajan, Professor of Astronomy, has been elected to an Honorary Professorship for life at the University of Delhi
Congratulations!
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Priya Natarajan
02.25.2013 Yale astrophysicist elected head of American Astronomical Society
Astrophysicist C. Megan Urry, Chair of Yale’s Physics Department and Director of the Center for Astronomy & Astrophysics, has been elected the next president of the world’s premier national astronomical society.
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02.20.2013 Astronomers find smallest known planet — smaller than Mercury
A team of scientists including two Yale University astronomers has discovered the smallest planet yet detected.
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Upcoming Events

Colloquia & Seminars | VIEW ALL

Informal Seminars03.21.2013, 3:00 pm to 6:00 pm
Seminar - Family friendly hands-on activities "Cycles of sun" planetarium shows, & Telescope viewing
NASA Sun-Earth Day @ Leitner Family Observatory and Planetarium

YCAA Seminars03.26.2013, 2:30 pm Bass 305
Seminar - Meredith Hughes
Wesleyan
Untitled YCAA Seminar: Meredith Hughes

Colloquia03.28.2013, 2:30 pm Bass 305
Colloquium - Joshua Winn
MIT
Spin-Orbit Interactions for Exoplanetary Systems

YCAA Seminars04.02.2013, 2:30 pm Bass 305
Seminar - Dave Minton
Purdue
Untitled YCAA Seminar: Dave Minton

Public Events | VIEW ALL

The Leitner Family Observatory and Planetarium is open every Tuesday night for a planetarium show. Weather permitting there will also be public viewing of planets, nebulae, star clusters and whatever happens to be interesting in the sky. Seats are available on a first come first serve basis. No reservations necessary.
Current updates are posted under the Newsblog and Calendar sections at leitnerobservatory.org

Yale University

© 2013 Yale University. All Rights Reserved.

Yale University

© 2013 Yale University. All Rights Reserved.