Wargelin, Bradford
Astrophysicist
Wargelin, Bradford
Astrophysicist
Laboratory X-ray astrophysics: High-resolution spectroscopy, atomic physics, charge exchange
High-energy astrophysics: Stellar coronae, solar wind charge exchange, soft X-ray background
Solar/stellar astrophysics: Stellar cycles, rotation, magnetic fields, and winds
Positions
- Calibration scientist, Chandra X-ray Center 1993 -
Background And Education
Education And Training
Professional Biography
- Please see my web page for a more complete and up-to-date cv, bibliography, etc.
Research And Grants
Co-principal Investigator On
Publications
Selected Publications
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Article
- Wargelin, Bradford J., Saar, Steven H., Irving, Zackery A., Slavin, Jonathan D., Ratzlaff, Peter, and do Nascimento, José-Dias. 2024. "X-Ray, UV, and Optical Observations of Proxima Centauri's Stellar Cycle." The Astrophysical Journal, 977 144. https://doi.org/10.3847/1538-4357/ad8faa. 2024
- do Nascimento, J. -D, Barnes, S. A., Saar, S. H., de Mello, G. F. Porto, Hall, J. C., Anthony, F., de Almeida, L., Velloso, E. N., da Costa, J. S., Petit, P., Strugarek, A., Wargelin, B. J., Castro, M., Strassmeier, K. G., and Brun, A. S. 2023. "A Hale-like Cycle in the Solar Twin 18 Scorpii." The Astrophysical Journal, 958 57. https://doi.org/10.3847/1538-4357/acfc1a. 2023
- Irving, Zackery A., Saar, Steven H., Wargelin, Bradford J., and do Nascimento, José-Dias. 2023. "Stellar Cycles in Fully Convective Stars and a New Interpretation of Dynamo Evolution." The Astrophysical Journal, 949 51. https://doi.org/10.3847/1538-4357/acc468. 2023
- Wargelin, Bradford J., Drake, Jeremy J., Wolk, Scott J., and Kashyap, Vinay L. 2020. "Pointing Chandra toward the Extreme Ultraviolet Fluxes of Very Low Mass Stars." The Astrophysical Journal, 893 137. https://doi.org/10.3847/1538-4357/ab7b5c. 2020
- Wargelin, B. J., Drake, Jeremy J., Pojmański, G., Kashyap, V. L., and Saar, S. H. 2017. "Optical, UV, and X-ray evidence for a 7-yr stellar cycle in Proxima Centauri." Monthly Notices of the Royal Astronomical Society, 464 3281–3296. https://doi.org/10.1093/mnras/stw2570. 2017
- Drake, Jeremy J., Ratzlaff, Peter, Kashyap, Vinay, Huenemoerder, David P., Wargelin, Bradford J., and Pease, Deron O. 2014. "A 33 Yr Constancy of the X-Ray Coronae of AR Lac and Eclipse Diagnosis of Scale Height." The Astrophysical Journal, 783 2. https://doi.org/10.1088/0004-637X/783/1/2. 2014
- Wargelin, Bradford J., Kornbleuth, M., Martin, P. L., and Juda, M. 2014. "Observation and Modeling of Geocoronal Charge Exchange X-Ray Emission during Solar Wind Gusts." The Astrophysical Journal, 796 28. https://doi.org/10.1088/0004-637X/796/1/28. 2014
- Wargelin, Bradford J., Koutroumpa, Dimitra, and Slavin, Jonathan D. 2013. "Solar Wind Charge Exchange Emission in the Chandra Deep Field North." The Astrophysical Journal, 779 13. https://doi.org/10.1088/0004-637X/779/1/13. 2013
- Wargelin, Bradford J., Drake, Jeremy J., García-Alvarez, D., Ratzlaff, P. W., and Kashyap, Vinay L. 2008. "X-Ray Flaring on the dMe Star, Ross 154." The Astrophysical Journal, 676 610–627. 2008
Contact
Location
- Smithsonian Astrophysical Observatory Academic Department
