AAS Special Session - Honolulu, Hawaii


Imaging Stars: A Century of Advances in High Angular Resolution Astronomy

Tuesday, January 7, 2020

10:00 - 11:30 AM

Hawaii Convention Center - Room 308B


On the night of December 13, 1920, Albert Michelson and Francis Pease became the first to measure the size of a star other than the Sun. This remarkable feat was accomplished using a 20-foot beam interferometer mounted on the 100-inch Hooker telescope at Mount Wilson Observatory. Their technique has blossomed into the field of long baseline interferometry that has made possible the resolution of stars hundreds of times smaller than the first target Betelgeuse. These new measurements are pushing stellar astrophysics into a new realm of precision to explore stellar evolution. In celebration of this historic achievement, we will bring together a series of talks to highlight recent advances in resolving stars at milli-arcsecond resolution across different evolutionary stages.


Time Speaker Presentation
 10:00-10:15 am Douglas Gies The First Century of Stellar Imaging
 10:15-10:30 am Andrea Dupree Recent High Resolution Studies of Betelgeuse
 10:30-10:45 am John Monnier Imaging the Surfaces of Stars
 10:45-11:00 am Lynn Matthews Understanding Evolved Stars and Mass Loss through Radio Imaging
 11:00-11:15 am Gioia Rau Atmospheres of Evolved Stars at Optical and Infrared Wavelengths
 11:15-11:30 am Daniel Huber Fundamental Properties of Stars Using Asteroseismology and Interferometry

Organizing Committee: Michelle Creech-Eakman, Douglas Gies, Theo ten Brummelaar, Gail Schaefer, Gerard van Belle

Link to Special Session in the Online Meeting Planner.

Link to associated Poster Session in the Online Meeting Planner.


List of presentations and posters using long baseline optical interferometry:


132.07. Sub-milliarcsecond observations of nearby stars in the visible waveband using VERITAS-SII - D. Kieda, N. K. Matthews, S. LeBohec, and the VERITAS Collaboration

152.05. First infrared interferometric 3-D diagnosis of the atmospheric dynamics of the red giant star R Dor - K. Ohnaka

164.04. The History of Optical Interferometers: from the laboratory to the stars - I. Payne

170.29. The First Visual Orbit for a WN Star - L. Lee, N. Richardson, N. Ibrahim, G. Schaefer

181.05. Interferometry and the Development of NPOI - G. T. van Belle

265.02. Visual Orbits of A- and F-type Spectroscopic Binaries with the CHARA Array - K. Lester

274.11. Dynamical Masses and Radii of Eclipsing Giants Discovered by KELT - R. Siverd, M. Lund, D. Stevens, K. Stassun, KELT Collaboration

274.20. Measuring Differential Rotation with Stellar Surface Maps - R. Roettenbacher, J. Monnier, R. Harmon

301.01. Sailing the winds: exploring the mechanisms driving the winds in carbon-rich AGB Stars - G. Rau, K. Ohnaka, M. Wittkowski, K. Carpenter, V. Airapetian

301.02. Stellar Imager (SI) - A UV/Optical Interferometer to Observe the Universe in High Definition - K. G. Carpenter, M. Karovska, G. Rau, C. Schrijver, The SI Team

301.03. Orbits of Massive Binary Stars - G. H. Schaefer, C. D. Farrington, D. R. Gies, K. V. Lester, J. D. Monnier, T. A. ten Brummelaar

301.04. First Light and Initial Science Plans for the MRO Interferometer - M. Creech-Eakman

319.02. The First Century of Stellar Imaging - D. Gies

319.03. Recent High Resolution Studies of Betelgeuse - A. Dupree

319.04. Imaging the Surfaces of Stars - J. Monnier

319.05. Understanding Evolved Stars and Mass Loss through Radio Imaging - L. D. Matthews

319.06. Atmospheres of Evolved Stars at Optical and Infrared Wavelengths - G. Rau

319.07. Fundamental Properties of Stars Using Asteroseismology and Interferometry - D. Huber

355.02. Direct Detection of Planets in the Habitable Zone - S. E. Dodson-Robinson

364.12. Exploring Regularized Maximum Likelihood Reconstruction for the ngVLA: Stellar Imaging as a Case Study - K. Akiyama, L. D. Matthews

373.01. Science with Optimast-SCI: New Discovery Frontiers with Sensitive, Millarcsecond Resolution - G. T. van Belle, N. Moskovitz, S. Patane, M. Fagin, D. Riley, J. Kloske, T. Tobiassen, M. Snyder

373.02. Precision In-Space Manufacturing for Structurally-Connected Interferometry - S. Patané, M. Fagin, D. Riley, T. Tobiassen1, J. Kloske, M. Snyder, G. van Belle

375.05. Hunting for Planets around Hot Stars: The ARMADA Survey at CHARA and VLTI - T. Gardner

377.03. Interferometric 3D imaging of lambda Andromedae - A. O. Martinez, F. Baron


Additional presentations and posters using related interferometric techniques:

105.05. Search for DBVs with Gemini Observatory’s ‘Alopeke - A. Nitta, S. Kleinman, E. Dennihy, A. Stephens, S. Xu, J. Provencal, Z. Vanderbosch, J. Hermes, A. Kannan, S. Kepler

114.01. The pre-Helium white dwarf in the post-mass transfer binary EL CVn - L. Wang, D. R. Gies, K. V. Lester, Z. Guo, R. A. Matson, G. J. Peters, V. S. Dhillon, T. Butterley, S. P. Littlefair, R. W. Wilson, P. F. Maxted

116.03. TOI 564 b and TOI 905 b: Grazing and Fully Transiting Hot Jupiters Discovered by TESS - A. B. Davis, S. Wang, M. Jones

121.05. SOAR TESS survey: The sculpting of planetary systems by stellar companions - C. Ziegler, A. Tokovinin, C. Briceno, J. Mang, N. Law, A. Mann

265.03. The Tale of the Lobster: Over-luminous Stars in Wide Binaries and a Search for Higher Order Multiples - Z. Hartman, S. Lepine, C. Clark, I. Medan, G. van Belle

256.06. The POKEMON Speckle Survey of Nearby M-dwarfs - C. Clark, G. van Belle, E. Horch, K. von Braun

274.12. Orbital Architectures of M dwarfs with Stellar, Brown Dwarf, and Planetary Companions - E. H. Vrijmoet, T. J. Henry, A. A. Couperus, W. Jao, A. Tokovinin

374.03. Discovering New Stellar, Brown Dwarf, and Planetary Companions Orbiting 472 of the Nearest K Dwarfs - L. Paredes, T. Henry, D. Nusdeo, H. James, W. Jao, Speckle Team

437.03. A Ground-Based, Fabry-Perot Based Instrument for the Study of Biosignature Gases in the Atmospheres of Terrestrial Exoplanets - S. Rukdee, S. Ben-Ami, M. Lopez-Morales, J. Garcia-Mejia, D. Charbonneau, A. Szentgyorgyi

452.02. Prevalence of SED turndown among classical Be stars: Are all Be stars close binaries? - R. Klement

If you have an abstract that you would like to add to these lists, please email Gail Schaefer (This email address is being protected from spambots. You need JavaScript enabled to view it.).