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Skip to Search Results- 14Sivakoff, Gregory Robert
- 13Miller-Jones, James C. A.
- 8Rupen, Michael P.
- 8Russell, D. M.
- 7Fender, Rob P.
- 7Russell, Thomas D.
- 10X-Rays: Binaries
- 7Radio Continuum: Stars
- 6Ism: Jets And Outflows
- 4Accretion
- 4Accretion Discs
- 3Black Hole Physics
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Deep radio imaging of 47 Tuc identifies the peculiar X-ray source X9 as a new black hole candidate
Download2015-01-01
Miller-Jones, James C. A., Strader, Jay, Heinke, Craig O., Maccarone, Thomas J., van den Berg, Maureen, Knigge, C., Chomiuk, Laura, Noyola, Eva, Russell, Thomas D., Seth, Anil C., Sivakoff, Gregory Robert
We report the detection of steady radio emission from the known X-ray source X9 in the globular cluster 47 Tuc. With a double-peaked C IV emission line in its ultraviolet spectrum providing a clear signature of accretion, this source had been previously classified as a cataclysmic variable. In...
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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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2016-01-01
Bahramian, Arash, Tetarenko, Alexandra Jean, Sivakoff, Gregory Robert, Tremou, Evangelia, Linares, Manuel, Tudor, Vlad, Miller-Jones, James C. A., Heinke, Craig O., Chomiuk, Laura, Strader, Jay, Altamirano, Diego, Degenaar, Nathalie, Maccarone, Thomas J., Patruno, A., Sanna, Andrea, Wijnands, Rudy
The paper “Disc-Jet Coupling in the Terzan 5 Neutron Star X-ray Binary EXO 1745−248” was published as Tetarenko et al. 2016, MNRAS, 460, 345–355. In Section 3.3 of the paper there is a minor error in equation (1). The correct equation is as follows, (logLR−logLR,c)=logξ+β(logLX−logLX,c). (1) The...
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2017-01-01
Tetarenko, Alexandra Jean, Sivakoff, Gregory Robert, Miller-Jones, James C. A., Rosolowsky, E. W., Petitpas, G., Gurwell, M., Wouterloot, J., Fender, Rob P., Heinz, S., Maitra, D., Markoff, Sera B., Migliari, Simone, Rupen, Michael P., Rushton, Anthony P., Russell, D. M., Russell, Thomas D., Sarazin, Craig L.
We present simultaneous radio through sub-mm observations of the black hole X-ray binary (BHXB) V404 Cygni during the most active phase of its June 2015 outburst. Our 4 h long set of overlapping observations with the Very Large Array, the Sub-millimeter Array and the James Clerk Maxwell Telescope...
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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
Corbel, Stephane, Miller-Jones, James C. A., Fender, Rob P., Gallo, Elena, Maccarone, Thomas J., O'Brien, Tim, Paragi, Zsolt, Rupen, Michael P., Rushton, Anthony, Sabatini, Sabina, Sivakoff, Gregory Robert, Strader, Jay, Woudt, Patrick Alan
The universal link between the processes of accretion and ejection leads to the formation of jets and outflows around accreting compact objects. Incoherent synchrotron emission from these outflows can be observed from a wide range of accreting binaries, including black holes, neutron stars, and...
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2018-01-01
Tetarenko, Alexandra Jean, Freeman, P., Rosolowsky, E. W., Miller-Jones, James C. A., Sivakoff, Gregory Robert
We present Atacama Large Millimetre/Sub-Millimetre Array (ALMA) observations of IRAS 19132+1035, a candidate jet–interstellar medium (ISM) interaction zone near the black hole X-ray binary (BHXB) GRS 1915+105. With these ALMA observations (combining data from the 12 m array and the Atacama...
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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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2015-01-01
Russell, Thomas D., Miller-Jones, James C. A., Curran, P. A., Soria, Roberto, Altamirano, Diego, Corbel, Stéphane, Coriat, Mickael, Moin, A., Russell, D. M., Sivakoff, Gregory Robert, Slaven-Blair, T. J., Belloni, Thomaso M., Fender, Rob P., Heinz, S., Jonker, P. G., Krimm, H. A., Körding, Elmar G., Maitra, D., Markoff, Sera, Middleton, Matthew, Migliari, Simone, Remillard, Ronald Alan, Rupen, Michael P., Sarazin, Craig L., Tetarenko, Alexandra Jean, Torres, M. A. P., Tudose, Valeriu, Tzioumis, A. K.
MAXI J1836−194 is a Galactic black hole candidate X-ray binary that was discovered in 2011 when it went into outburst. In this paper, we present the full radio monitoring of this system during its ‘failed’ outburst, in which the source did not complete a full set of state changes, only...
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2015-01-01
Curran, P. A., Miller-Jones, James C. A., Rushton, Anthony P., Pawar, Devraj D., Anderson, G. E., Altamirano, Diego, Krimm, H. A., Broderick, J. W., Belloni, Thomaso M., Fender, Rob P., Körding, E. G., Maitra, D., Markoff, Sera, Migliari, Simone, Rumsey, C., Rupen, Michael P., Russell, D. M., Russell, Thomas D., Sarazin, Craig L., Sivakoff, Gregory Robert, Soria, Roberto, Tetarenko, Alexandra Jean, Titterington, David, Tudose, Valeriu
XTE J1908+094 is an X-ray transient black hole candidate in the Galactic plane that was observed in outburst in 2002 and 2013. Here we present multifrequency radio and X-ray data, including radio polarimetry, spanning the entire period of the 2013 outburst. We find that the X-ray behaviour of XTE...