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Skip to Search Results- 4Knigge, C.
- 4Sivakoff, Gregory Robert
- 2Bahramian, Arash
- 2Bogdanov, Slavko
- 2Chomiuk, Laura
- 2Coppejans, Deanne L.
- 4Accretion
- 4Accretion Discs
- 2Cataclysmic Variables
- 2Novae
- 2Radiation Mechanisms: General
- 2Radio Continuum: Stars
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2016-01-01
Coppejans, Deanne L., Körding, Elmar G., Miller-Jones, James. C. A., Rupen, Michael P., Sivakoff, Gregory Robert, Knigge, C., Groot, Paul J., Woudt, Patrick Alan, Waagen, Elizabeth O., Templeton, Matthew
We present 8–12 GHz radio light curves of five dwarf nova (DN) type cataclysmic variable stars (CVs) in outburst (RX And, U Gem, and Z Cam), or superoutburst (SU UMa and YZ Cnc), increasing the number of radio-detected DN by a factor of 2. The observed radio emission was variable on time-scales...
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2018-01-01
Tudor, Vlad, Miller-Jones, James C. A., Knigge, C., Maccarone, Thomas J., Tauris, T. M., Bahramian, Arash, Chomiuk, Laura, Heinke, Craig O., Sivakoff, Gregory Robert, Strader, Jay, Plotkin, Richard M., Soria, Roberto, Albrow, M. D., Anderson, G. E., van den Berg, Maureen, Bernardini, Federico, Bogdanov, Slavko, Britt, Christopher. T., Russell, D. M., Zurek, David R.
To confirm the nature of the donor star in the ultracompact X-ray binary candidate 47 Tuc X9, we obtained optical spectra (3000–10 000 Å) with the Hubble Space Telescope / Space Telescope Imaging Spectrograph. We find no strong emission or absorption features in the spectrum of X9. In particular,...
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2015-01-01
Coppejans, Deanne L., Körding, Elmar G., Miller-Jones, James C. A., Rupen, Michael P., Knigge, C., Sivakoff, Gregory Robert, Groot, Paul J.
Radio emission from non-magnetic cataclysmic variables (CVs, accreting white dwarfs) could allow detailed studies of outflows and possibly accretion flows in these nearby, numerous and non-relativistic compact accretors. Up to now, however, very few CVs have been detected in the radio. We have...
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2017-01-01
Bahramian, Arash, Heinke, Craig O., Tudor, Vlad, Miller-Jones, James. C. A., Bogdanov, Slavko, Maccarone, Thomas J., Knigge, C., Sivakoff, Gregory Robert, Chomiuk, Laura, Strader, Jay, Garcia, Javier A., Kallman, Timothy
47 Tuc X9 is a low-mass X-ray binary (LMXB) in the globular cluster 47 Tucanae, and was previously thought to be a cataclysmic variable. However, Miller-Jones et al. recently identified a radio counterpart to X9 (inferring a radio/X-ray luminosity ratio consistent with black hole LMXBs), and...