- Ph.D., Physics, Yale University, 1990
- M. Phil., Physics, Yale University
- M.S., Physics, Yale University
- B.S., Physics, Illinois Institute of Technology, 1980
Constantine P. Deliyannis
Professor, Astronomy
Professor, Astronomy
stellar interiors and stellar evolution; metal-poor stars; open clusters and globular clusters; big bang lithium; light element probes of big bang nucleosynthesis, chemical evolution, and physical processes inside stars
Professor Deliyannis has been on the IU Astronomy faculty since 1997. He received a B.S. in physics from Illinois Institute of Technology in 1980, M. Phil. and M.S. degrees in physics in 1982, and a Ph.D. in physics in 1990 from Yale University. He was a Beatrice Watson Parrent Postdoctoral Fellow at the University of Hawaii and a Hubble Postdoctoral Fellow at Hawaii and Yale. He typically teaches A100 (The Solar System), A221-A222 (General Astronomy I-II), and A451 (Stellar Astrophysics).
A search for radius inflation among active M-dwarfs in Praesepe, Jackson, R. J., Jeffries, R. D., Deliyannis, C. P., Sun, Q., Douglas, S. T. 2019, MNRAS, 483, 1125.
Li in Open Clusters: Cool Dwarfs in the Young, Subsolar-metallicity Cluster M35 (NGC 2168), Anthony-Twarog, B. J., Deliyannis, C. P., Harmer, D., Lee-Brown, D. B., Steinhauer, A., Sun, Q., Twarog, B. A. 2018, AJ, 156, 37
The inflated radii of M dwarfs in the Pleiades, Jackson, R. J., Deliyannis, C. P., Jeffries, R. D. 2018, MNRAS, 476, 3245.
WIYN Open Cluster Study. LXXVI. Li Evolution Among Stars of Low/Intermediate Mass: The Metal-deficient Open Cluster NGC 2506, Anthony-Twarog, B. J., Lee-Brown, D. B., Deliyannis, C. P., Twarog, B. A. 2018, AJ, 155, 138.
WIYN Open Cluster Study. LXXV. Testing the Metallicity Dependence of Stellar Lithium Depletion Using Hyades-aged Clusters. I. Hyades and Praesepe, Cummings, J. D., Deliyannis, C. P., Maderak, R. M., Steinhauer, A. 2017, AJ, 153, 128.
WIYN Open Cluster Study. LXXII. A uvbyCaHβ CCD Analysis of the Metal-deficient Open Cluster NGC 2506, Anthony-Twarog, B. J., Deliyannis, C. P., Twarog, B. A. 2016, AJ, 152, 192.
Boron Abundances Across the "Li-Be Dip" in the Hyades Cluster, Boesgaard, A. M., Lum, M. G., Deliyannis, C. P., King, J. R., Pinsonneault, M. H., Somers, G. 2016, ApJ, 830, 49.