Lucas Macri

Adjunct Faculty

Research Areas

Cosmic Distance Scale
Data-Intensive Computation

Pronouns: (he / him / his)
Email: lmacri@tamu.edu

Biography

Lucas Macri works on the Extragalactic Distance Scale, studies of electromagnetic counterparts to gravitational-wave sources, and large-scale galaxy flows. The main focus of his research is on Mira and Cepheid variables, which he studies using the Hubble Space Telescope and many ground-based observatories. One of the goals of his research is to measure a more precise value of the Hubble constant, to better constrain the equation of state of dark energy and test the current cosmological model.

Institutional Partnerships

Mitchell Institute for Fundamental Physics & Astronomy

News Highlights

Hubble Reaches New Milestone in Mystery of Universe's Expansion Rate
New Physics Needed to Explain Discrepancy in Universe’s Expansion Rate Measurement?
Texas A&M Part of 3-D Mapping Masterpiece
Texas A&M Astronomers Play Key Collaborative Roles in Neutron Star Collision Imaging and Analyses

Awards & Honors

Distinguished Achievement in Teaching - College Level (2014)
Mitchell-Heep-Munnerlyn Endowed Career Enhancement Professorship in Physics or Astronomy (2010)

Selected Publications

Adam G. Riess, Wenlong Yuan, Lucas M. Macri, Dan Scolnic, Dillon Brout, Stefano Casertano, David O. Jones, Yukei Murakami, Gagandeep S. Anand, Louise Breuval, Thomas G. Brink, Alexei V. Filippenko, Samantha Hoffmann, Saurabh W. Jha, W. D'arcy Kenworthy, John Mackenty, Benjamin E. Stahl, and WeiKang Zheng. “A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team.” The Astrophysical Journal Letters, 934(1), L7, Jul 2022.
Tarini Konchady, Ryan J. Oelkers, David O. Jones, Wenlong Yuan, Lucas M. Macri, Erik R. Peterson, and Adam G. Riess. “H-band Light Curves of Milky Way Cepheids via Difference Imaging.” The Astrophysical Journal Supplement Series, 258(2), 24, Jan 2022.
Adam G. Riess, Stefano Casertano, Wenlong Yuan, J. Bradley Bowers, Lucas Macri, Joel C. Zinn, and Dan Scolnic. “Cosmic Distances Calibrated to 1% Precision with Gaia EDR3 Parallaxes and Hubble Space Telescope Photometry of 75 Milky Way Cepheids Confirm Tension with $Λ$ CDM.” The Astrophysical Journal Letters, 908(1), L6, Feb 2021.