T CrB: Radio Observations During the 2016--2017 "Super-Active" State

(10) Herzberg Institute of Astrophysics; 2); (2) National Radio Astronomy Observatory; (3) Center for Data Intensive; (5) AAAS Science; (6) The George Washington University; 7); (7) Astronomy; (8) Center for Space Science; 9)

T CrB: Radio Observations During the 2016--2017 "Super-Active" State

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arxiv 1909.13858 v1 pith:LI5DJMEW submitted 2019-09-30 astro-ph.HE astro-ph.SR

T CrB: Radio Observations During the 2016--2017 "Super-Active" State

Justin D. Linford (1 , 2) , Laura Chomiuk (3) , Jennifer L Sokoloski (4) , Jennifer H. S. Weston (5) , Alxander J. van der Horst (6 , 7) , Koji Mukai (8

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9) Paul Barrett (6) Amy J. Mioduszewski (2) Michael Rupen (10) ((1) West Virginia University (2) National Radio Astronomy Observatory (3) Center for Data Intensive Time Domain Astronomy Michigan State University (4) Columbia Astrophysics Laboratory (5) AAAS Science Technology Policy Fellow (6) The George Washington University (7) Astronomy Physics Statistics Institute of Sciences (8) Center for Space Science Technology University of Maryland Baltimore County (9) CRESST X-ray Astrophysics Laboratory NASA/GSFC (10) Herzberg Institute of Astrophysics National Research Council of Canada)

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We obtained radio observations of the symbiotic binary and known recurrent nova T Coronae Borealis following a period of increased activity in the optical and X-ray bands. A comparison of our observations with those made prior to 2015 indicates that the system is in a state of higher emission in the radio as well. The spectral energy distributions are consistent with optically thick thermal bremsstrahlung emission from a photoionized source. Our observations indicate that the system was in a state of increased ionization in the companion wind, possibly driven by an increase in accretion rate, with the radio photosphere located well outside the binary system.

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Cited by 1 Pith paper

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When will T Coronae Borealis next erupt as a nova? Constraints from recurrence, orbital phase, and accretion-state evolution
astro-ph.HE 2026-07 conditional novelty 5.0

T CrB's next eruption is not uniquely predictable; conditional scenarios point to a possible 2026 December eruption if the current decline mimics 1946, or a lower limit near 2029 May if the recent high state left an a...