Faculty Profiles

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Dr. Blagoy Rangelov

  • Associate Professor - Physics

Biography and education

Blagoy Rangelov received a B.S. degree in Physics from Sofia University, Bulgaria, where, a year later, he graduated with an M.S. degree in Astronomy and Astrophysics. In 2006 he joined the Ph.D. program of the Department of Physics and Astronomy at the University of Toledo, where he worked on extragalactic astronomy. Blagoy Rangelov broadened his knowledge and skillset by becoming a Pre-doctoral Fellow at the Harvard-Smithsonian Center for Astrophysics in Cambridge, MA. There he had the excellent opportunity to carry out research in extragalactic high-energy astrophysics and gained hands-on experience in using modern X-ray telescopes and their data analysis. In 2013 he became a Postdoctoral Scientist at the George Washington University, where he conducted research in galactic and extragalactic high-energy astrophysics and participated in a number of educational and outreach activities. In the Fall of 2016, Blagoy Rangelov joined the Department of Physics at Texas State University.

Research Interests

  • Lewis, Karen A, Whitten, Steven T (Co-Principal), Hough, Loren (Co-Principal), Hodby, Eleanor (Co-Principal), Theodoropoulou, Nikoleta (Supporting), Close, Eleanor W (Supporting), Rangelov, Blagoy (Supporting), Islam, Tanzima Z (Supporting), Betancourt, Tania (Supporting), Berry, Joe (Supporting), Finklestein, Noah (Supporting), MacGregor, Meredith (Supporting), Brown, Jed (Supporting), Eaves, Joel (Supporting). Creating Equitable Pathways to STEM Graduate Education, Sloan Foundation, Private / Foundation / Corporate, $249299. (Submitted: September 2, 2022, Funded: January 2023 - Present). Grant.
  • Rangelov, Blagoy (Principal). Multi-wavelength Classification of X-ray sources in Spiral Galaxies, NASA Astrophysics Data Analysis Program, $286110. (Submitted: 2021, Funded: June 15, 2022 - June 14, 2025). Grant.
  • Rangelov, Blagoy (Co-Principal). A Deep broadband study of the diverse population of X-ray sources in M51 with Chandra and NuSTAR. (Submitted: 2016, Funded: 2016). Grant.
  • Rangelov, Blagoy (Principal). Swift Cycle 12, Revealing pulsars hidden in the 3rd Fermi Catalog, $45000. (Funded: 2015). Grant.
  • Rangelov, Blagoy (Co-Principal), Kargaltsev, O (Principal). Snap-shot Survey of Fermi Pulsar Candidates. (Funded: 2015). Grant.
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  • Marentes, E., & Rangelov, B. (2025). The Nature of X-ray Sources in Andromeda Galaxy. Research Notes of the AAS.
  • McCarver, A. G., Maccarone, T., Ransom, S., Peters, W., Clarke, T., Giacintucci, S., & Rangelov, B. (2024). A VLITE Search for Millisecond Pulsars in Globular Clusters: Discovery of a Pulsar in GLIMPSE-C01. The Astrophysical Journal, 969(1), 13. https://doi.org/10.3847/1538-4357/ad4461
  • Rangelov, B., Yang, H., Williams, B., Hare, J., Kargaltsev, O., & Martinic, K. (2024). Chandra X-ray Observatory Observations of 13 Fermi LAT Sources. The Astrophysical Journal, 961(1), 12. https://doi.org/10.3847/1538-4357/ad09da
  • Chen, S. G., Kargaltsev, O., Yang, H., Hare, J., Volkov, I., Rangelov, B., & Tomsick, J. (2023). Population of X-ray Sources in the Intermediate-Age Cluster NGC 3532: A Testbed for Machine-Learning Classification. The Astrophysical Journal.
  • Yang, H., Hare, J., Kargaltsev, O., Volkov, I., Chen, S. G., & Rangelov, B. (2022). Classifying Unidentified X-ray Sources in the Chandra Source Catalog Using a Multi-wavelength Machine Learning Approach. The Astrophysical Journal, 941. https://doi.org/10.3847/1538-4357/ac952b
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  • Award / Honor Recipient: Presidential Distinction Award for Excellence in Teaching. 2022 - August 2022
  • Award / Honor Recipient: COSE Awards for Excellence in Teaching. 2022 - June 2022
  • Award / Honor Recipient: Alumni Association Teaching Award of Honor. 2020 - August 2020
  • Award / Honor Recipient: Presidential Distinction Award for Excellence in Teaching. 2020 - August 2020
  • Award / Honor Recipient: Excellence in Service. March 2019 - September 2019
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  1. University Mentor

    Society for Space Exploration

  2. Organizer

    Planetarium, Texas State University

  3. Organizer

    Weekly Public Observing

  4. University Mentor

    Astronomy Club

  5. Organizer

    Public Observing, Texas State University Observatory

  6. University Mentor

    Creating Equitable Pathways to STEM Graduate Education

  7. View all activities