Hollis B. Akins

Astronomy Ph.D. student at UT Austin

headshot.jpg

PMA 16.308

2515 Speedway

Austin, TX 78712

Welcome! I am a fourth-year Ph.D. student at the University of Texas at Austin working with Prof. Caitlin Casey on high-redshift galaxy evolution. In particular, I study massive galaxies and AGN in the epoch of reionization, a period of major phase change in the first billion years of the universe. I focus in particular on rare, bright objects discovered with major telescopes including JWST and ALMA, and I’m a member of the COSMOS-Web and CEERS collaborations.

I completed my Bachelors in Physics at Grinnell College in rural Iowa, surrounded by corn-fields and fueled by small-town coffee. While there I studied the evolution of the smallest galaxies in the local universe using hydrodynamic simulations as part of the N-Body Shop collaboration. I’ve also previously studied the color evolution of massive galaxies using the SIMBA cosmological simulations.

This page will be a home for updates about my research projects, publications, and growth as a scientist. Follow the links below to learn more.

news

selected publications

  1. mambo9.png
    JWST+ALMA reveal the ISM kinematics and stellar structure of MAMBO-9, a merging pair of DSFGs in an overdense environment at z=5.85
    Hollis B. Akins, Caitlin M. Casey, Jaclyn B. Champagne, and 14 more authors
    arXiv, Aug 2025
  2. tentative.png
    Tentative detection of neutral gas in a Little Red Dot at z=4.46
    Hollis B. Akins, Caitlin M. Casey, John Chisholm, and 7 more authors
    arXiv, Mar 2025
  3. lrd_uv.png
    Strong Rest-UV Emission Lines in a “Little Red Dot” Active Galactic Nucleus at z = 7: Early Supermassive Black Hole Growth alongside Compact Massive Star Formation?
    Hollis B. Akins, Caitlin M. Casey, Danielle A. Berg, and 13 more authors
    ApJL, Feb 2025
  4. Akins24a.png
    COSMOS-Web: The Overabundance and Physical Nature of “Little Red Dots”—Implications for Early Galaxy and SMBH Assembly
    Hollis B. Akins, Caitlin M. Casey, Erini Lambrides, and 38 more authors
    ApJ, Sep 2025