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College of Liberal Arts & Sciences Department of Astronomy

Joaquin Vieira

Profile picture for Joaquin  Vieira

Contact Information

Astronomy:
229 Astronomy
1002 W. Green Street, Urbana IL 61801

Physics:
437C Loomis Laboratory
1110 W Green St, Urbana, IL 61801

NCSA:
2102D
1205 W Clark St, Urbana, IL 61801

Office Hours

Friday 3:00-5:00 PM
Loomis 437C
Professor

Research Interests

Cosmology
Extragalactic surveys
Galaxy Evolution
Instrumentation
Observation

Research Description

Professor Vieira is an observational cosmologist in the departments of Astronomy and Physics. His work has focused on instrumentation and observations of the cosmic microwave background -  the relic radiation left over from the big bang - and the evolution of the universe over cosmic time. He is currently actively involved on a number of large cosmological experiments, including the South Pole Telescope (SPT), CMB-S4, and the Terahertz Intensity Mapper (TIM). He regularly observes with major astronomical facilities such as ALMA, Hubble, and JWST. He currently serves as Director of Astronomy at the National Center for Supercomputing Applications (NCSA) and is the Founding Director of the Center for AstroPhysical Surveys (CAPS).

Education

2009 Ph.D. Physics, The University of Chicago
2005 M.S. Physics, The University of Chicago
2002 B.S. Astrophysics, The University of California, Los Angeles

Additional Campus Affiliations

Professor, Astronomy
Professor, Physics
Director, Center for Astrophysical Survey, National Center for Supercomputing Applications (NCSA)
Professor, National Center for Supercomputing Applications (NCSA)

Recent Publications

Coerver, A., Zebrowski, J. A., Takakura, S., Holzapfel, W. L., Ade, P. A. R., Anderson, A. J., Ahmed, Z., Ansarinejad, B., Archipley, M., Balkenhol, L., Barron, D., Benabed, K., Bender, A. N., Benson, B. A., Bianchini, F., Bleem, L. E., Bouchet, F. R., Bryant, L., Camphuis, E., ... Young, M. R. (2025). Measurement and Modeling of Polarized Atmosphere at the South Pole with SPT-3G. Astrophysical Journal, 982(1), Article 15. https://doi.org/10.3847/1538-4357/ada35d

Hughes, C., Hill, R., Chapman, S. C., Aravena, M., Archipley, M., Dike, V. J., Gonzalez, A., Greve, T. R., Gururajan, G., Hayward, C., Phadke, K., Reuter, C., Spilker, J., Sulzenauer, N., Vieira, J. D., Vizgan, D., Wang, G., Weiss, A., & Zhou, D. (2025). Evidence for Environmental Effects in the z = 4.3 Protocluster Core SPT2349-56. Astrophysical Journal Letters, 983(1), Article L11. https://doi.org/10.3847/2041-8213/adc1c9

Rigby, J. R., Vieira, J. D., Phadke, K. A., Hutchison, T. A., Welch, B., Cathey, J., Spilker, J. S., Gonzalez, A. H., Adhikari, P., Aravena, M., Bayliss, M. B., Birkin, J. E., Bursk, E., Chapman, S. C., Dahle, H., Elicker, L. A., Fischer, T. C., Florian, M. K., Gladders, M. D., ... Younker, N. (2025). JWST Early Release Science Program TEMPLATES: Targeting Extremely Magnified Panchromatic Lensed Arcs and Their Extended Star Formation. Astrophysical Journal, 978(1), Article 108. https://doi.org/10.3847/1538-4357/ad7501

Zhou, D., Chapman, S. C., Sulzenauer, N., Hill, R., Aravena, M., Araya-Araya, P., Cathey, J., Marrone, D. P., Phadke, K. A., Reuter, C., Solimano, M., Spilker, J. S., Vieira, J. D., Vizgan, D., Wang, G. C. P., & Weiss, A. (2025). A Large Molecular Gas Reservoir in the Protocluster SPT2349−56 at z = 4.3. Astrophysical Journal Letters, 982(1), Article L17. https://doi.org/10.3847/2041-8213/adb8d8

(SPT-3G Collaboration) (2025). Cosmology from CMB lensing and delensed EE power spectra using 2019-2020 SPT-3G polarization data. Physical Review D, 111(8), Article 083534. https://doi.org/10.1103/PhysRevD.111.083534

View all publications on Illinois Experts

College of Liberal Arts & Sciences Department of Astronomy

Front Office Hours: Daily 8:00AM-4:30PM

1002 W. Green Street

Urbana, IL 61801

217-333-3090

Email: astronomy@illinois.edu

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