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Lucas Macri

Faculty: Associate Dean, Professor


MIST M423 (main office)

BLOC 520A (aux. location)


Lucas Macri works on the Extragalactic Distance Scale, searches for 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.

Latest Publications

Wenlong Yuan, Lucas M. Macri, Atefeh Javadi, Zhenfeng Lin, and Jianhua Z. Huang. “Near-infrared Mira Period--Luminosity Relations in M33.” The Astronomical Journal, 156(3), 112, Aug 2018.

Adam G. Riess, Stefano Casertano, Wenlong Yuan, Lucas Macri, Beatrice Bucciarelli, Mario G. Lattanzi, John W. MacKenty, J. Bradley Bowers, WeiKang Zheng, Alexei V. Filippenko, Caroline Huang, and Richard I. Anderson. “Milky Way Cepheid Standards for Measuring Cosmic Distances and Application to Gaia DR2: Implications for the Hubble Constant.” The Astrophysical Journal, 861(2), 126, Jul 2018.

Caroline D. Huang, Adam G. Riess, Samantha L. Hoffmann, Christopher Klein, Joshua Bloom, Wenlong Yuan, Lucas M. Macri, David O. Jones, Patricia A. Whitelock, Stefano Casertano, and Richard I. Anderson. “A Near-infrared Period--Luminosity Relation for Miras in NGC 4258, an Anchor for a New Distance Ladder.” The Astrophysical Journal, 857(1), 67, Apr 2018.

Adam G. Riess, Stefano Casertano, Wenlong Yuan, Lucas Macri, Jay Anderson, John W. MacKenty, J. Bradley Bowers, Kelsey I. Clubb, Alexei V. Filippenko, David O. Jones, and Brad E. Tucker. “New Parallaxes of Galactic Cepheids from Spatially Scanning the Hubble Space Telescope: Implications for the Hubble Constant.” The Astrophysical Journal, 855(2), 136, Mar 2018.

Cullan Howlett, Lister Staveley-Smith, Pascal J. Elahi, Tao Hong, Tom H. Jarrett, D. Heath Jones, Bärbel S. Koribalski, Lucas M. Macri, Karen L. Masters, and Christopher M. Springob. “2MTF -- VI. Measuring the velocity power spectrum.” Monthly Notices of the Royal Astronomical Society, 471(3), 3135--3151, Jun 2017.

Awards & Recognition

  • Distinguished Achievement in Teaching - College Level (The Association of Former Students of Texas A&M University, 2014)
  • Mitchell-Heep-Munnerlyn Endowed Career Enhancement Professorship in Physics or Astronomy (Texas A&M Department of Physics & Astronomy, 2010)

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