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T CrB: Radio Observations during the 2016-2017 "Super-active" State

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...

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Published in:	The Astrophysical journal 2019-10, Vol.884 (1), p.8
Main Authors:	Linford, Justin D., Chomiuk, Laura, Sokoloski, Jennifer L., Weston, Jennifer H. S., van der Horst, Alexander J., Mukai, Koji, Barrett, Paul, Mioduszewski, Amy J., Rupen, Michael
Format:	Article
Language:	English
Subjects:	Astrophysics binaries: symbiotic Bremsstrahlung Companion stars Deposition Emission Emissions Ionization novae, cataclysmic variables Photoionization Photosphere Radio radio continuum: stars Radio observation stars: individual (T CrB) Stellar winds white dwarfs
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container_title	The Astrophysical journal
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creator	Linford, Justin D. Chomiuk, Laura Sokoloski, Jennifer L. Weston, Jennifer H. S. van der Horst, Alexander J. Mukai, Koji Barrett, Paul Mioduszewski, Amy J. Rupen, Michael
description	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.
doi_str_mv	10.3847/1538-4357/ab3c62
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subjects	Astrophysics binaries: symbiotic Bremsstrahlung Companion stars Deposition Emission Emissions Ionization novae, cataclysmic variables Photoionization Photosphere Radio radio continuum: stars Radio observation stars: individual (T CrB) Stellar winds white dwarfs
title	T CrB: Radio Observations during the 2016-2017 "Super-active" State
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