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Education:
Education:
Ph.D. Astronomy, Georgia State University, 2016
Advisor: Douglas Gies
Thesis: Fundamental Parameters of Eclipsing Binaries in the Kepler Field of View
M.S. Physics, Georgia State University, 2012
Advisor: Douglas Gies
Thesis: Spectroscopic Studies of Eclipsing B Stars
B.S. Physics, University of Denver, 2006
Advisor: Robert Stencel
Honors Thesis: Galactic Open Clusters
Research Interests:
Research Interests:
Determining the binary fraction and stellar properties of K2 planet host stars using speckle interferometry
Measuring orbital parameters and fundamental properties of binary stars through photometric and spectroscopic analysis and binary modeling
Exploring how angular momentum is allocated in star formation through the detection of binary/multiple star systems and measurement of stellar rotational velocities
Investigating the frequency and structure of He I 10830 emission in luminous and evolved stars as a probe of mass loss in such systems.
Selected Publications:
Selected Publications:
(to download papers, please go to ADS or arXiv)
The Pre-He White Dwarf in the Post-mass Transfer Binary EL CVn.
L. Wang, D. R. Gies, K. V. Lester, Z. Guo, Matson, R. A., G. J. Peters, V. S. Dhillon, T. Butter- ley, S. P. Littlefair, R. W. Wilson, and P. F. L. Maxted. AJ, 159:4, 2020
Visual Orbits of Spectroscopic Binaries with the CHARA Array. II. The Eclipsing Binary HD 185912
K. V. Lester, D. R. Gies, G. H. Schaefer, C. D. Farrington, Z. Guo, Matson, R. A., J. D. Monnier, T. A. ten Brummelaar, J. Sturmann, N. Vargas, and S. A. Weiss. AJ, 158:218, 2019
System Parameters for the Eclipsing B-star Binary BD+11◦3569
S. J. Williams, W. T. Ryle, Matson, R. A., S. R. O’Bryan, T. A. Perrino, C. A. Farwick, and D. R. Gies. AJ, 158:118, 2019
High-resolution Imaging Transit Photometry of Kepler-13AB
S. B. Howell, N. J. Scott, Matson, R. A., E. P. Horch, and A. Stephens. . AJ, 158:113, 2019
Detecting Unresolved Binaries in TESS Data with Speckle Imaging
Matson, R. A.; Howell, S. B.; Ciardi, D., AJ, 157:211, 2019
Observations of Binary Stars with the Differential Speckle Survey Instrument VIII. Measures of Triple Stars and Metal-Poor Stars from 2015 to 2018
Horch, E. P., Tokovinin, A., et al. (including Matson, R. A.), AJ, 157:56, 2019
Stellar Companions of Exoplanet Host Stars in K2
Matson, R. A.; Howell, S. B.; Horch, E. P.; Everett, M. E., 2018, AJ, 156, 31
Gravity Modes Reveal the Internal Rotation of a Post-Mass Transfer Gamma Doradus/Delta Scuti Hybrid Pulsator in Kepler Eclipsing Binary KIC 9592855
Guo, Z.; Gies, D. R.; Matson, R. A. 2017, ApJ, 851, 39
Radial Velocities of 41 Kepler Eclipsing Binaries
Matson, R. A.; Gies, D. R., Guo, Z. Williams, S. J. 2017, AJ, 154, 216
KIC 8262223: A Post-Mass Transfer Eclipsing Binary Consisting of a Delta Scuti Pulsator and a Helium White Dwarf Precursor
Guo, Z.; Gies, D. R.; Matson, R. A.; García Hernández, A.; Han, Z.; Chen, X. 2017, ApJ, 837, 114
Kepler Eclipsing Binaries with δ Scuti/ϒ Doradus Pulsating Components I: KIC 9851944
Guo, Z.; Gies, D. R.; Matson, R. A.; García Hernández, A. 2016, ApJ, 826, 69
Fundamental Parameters of Kepler Eclipsing Binaries. I. KIC 5738698
Matson, R. A.; Gies, D. R.; Guo, Z.; Orosz, J. A. 2016, AJ, 151, 139
Kepler Eclipsing Binaries with Stellar Companions
Gies, D. R.; Matson, R. A.; Guo, Z.; Lester, K. V.; Orosz, J. A.; Peters, G. J. 2015, AJ, 150, 178
HST/COS Detection of the Spectrum of the Subdwarf Companion of KOI-81
Matson, R.A.; Gies, D.R.; Guo, Z.; et al. 2015, ApJ, 806, 155
The H-band Emitting Region of the Luminous Blue Variable P Cygni: Spectrophotometry and Interferometry of the Wind
Richardson, N.D.; Schaefer, G. H.; Gies, D.R. et al. (including Matson, R.A.) 2013, ApJ, 716, 118R
A Search for Hierarchical Triples using Kepler Eclipse Timing
Gies, D. R.; Williams, S. J.; Matson, R. A.; Guo, Z.; Thomas, S. M.; Orosz, J. A.; Peters, G. J. 2012, AJ, 143,147
ASAS Light Curves of Intermediate-mass Eclipsing Binary Stars and the Parameters of HI Mon
Williams, S. J.; Gies, D. R.; Helsel, J. W.; Matson, R. A.; Caballero-Nieves, S. 2011, AJ, 142, 5
The Be Star HD 215227: A Candidate Gamma-ray Binary
Williams, S. J.; Gies, D. R.; Matson, R. A.; Touhami, Y.; et al., 2010, ApJ, 723L, 93
The Evolutionary State of the Massive Interacting Binary BD+36°4063
Williams, S. J.; Gies, D. R.; Matson, R. A.; Huang, W. 2009, ApJ, 696L, 137
Observing Experience:
Observing Experience:
United States Naval Observatory, Washington, D.C.
26in Telescope with ICCD Speckle Interferometer (2 nights) 2019
Gemini North Observatory, Mauna Kea
8.1-m Telescope with `Alopeke Speckle Interferometer (16 nights) 2018 - 2019
8.1-m Telescope with `Alopeke Speckle Interferometer (commissioning) 2017
8.1-m Telescope with NIFS (1 night) 2009
Gemini South Observatory, Cerro Pahon
8.1m Telescope with Zorro Speckle Interferometer (5 nights) 2019
8.1m Telescope with Zorro Speckle Interferometer (commissioning) 2019
8.1m Telescope with DSSI Speckle Interferometer (10 nights) 2017 - 2018
Kitt Peak National Observatory
3.5-m WIYN Telescope with NESSI speckle interferometer (4 nights) 2017
3.5-m WIYN Telescope with Hydra multi-object spectrometer (3 nights) 2013
4-m Mayall Telescope with RC Spectrograph (33 nights) 2010-2013
0.9-m Coudé Feed Telescope with Spectrograph (6 nights) 2009
0.9-m WIYN Telescope with S2KB CCD (3 nights) 2005
Lowell Observatory, Anderson Mesa
1.8-m Perkins Telescope with DeVeny Spectrograph (41 nights) 2009-2013
1.8-m Perkins Telescope with Mimir (23 nights) 2010-2013
Hard Labor Creek Observatory, operated by Georgia State University
20-inch RC-Optics Telescope with LHIRES III Spectrograph (2 nights) 2011
16-inch Meade Telescope with SBIG CCD (1 night) 2008
Mt. Evans Meyer-Womble Observatory, operated by University of Denver
Dual 0.7-m Binocular Telescope with Optec Photometer (8 nights) 2006
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