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Skip to Search Results- 31Sivakoff, Gregory Robert
- 13Altamirano, Diego
- 12Heinke, Craig O.
- 12Miller-Jones, James C. A.
- 9Fender, Rob P.
- 9Russell, D. M.
- 23X-Rays: Binaries
- 11Accretion
- 11Radio Continuum: Stars
- 10Accretion Discs
- 8Ism: Jets And Outflows
- 7Stars: Neutron
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Understanding X-ray irradiation in low-mass X-ray binaries directly from their light-curves
Download2018-01-01
Sivakoff, Gregory Robert, Tetarenko, Bailey E., Dubus, G., Lasota, Jean-Pierre, Heinke, Craig O.
The X-ray light curves of the recurring outbursts observed in low-mass X-ray binaries provide strong test beds for constraining (still) poorly understood disc-accretion processes. These light curves act as a powerful diagnostic to probe the physics behind the mechanisms driving mass inflow and...
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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...
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2016-01-01
Russell, Thomas D., Miller-Jones, James C. A., Sivakoff, Gregory Robert, Altamirano, Diego, O'Brien, Tim J., Page, Kim L., Templeton, Matthew R., Körding, E. G., Knigge, C., Fender, Rob P., Heinz, S., Maitra, D., Markoff, Sera, Rupen, Michael P., Migliari, Simone, Remillard, Ronald Alan, Russell, D. M., Sarazin, Craig L., Waagen, Elizabeth O.
We present the results of our intensive radio observing campaign of the dwarf nova SS Cyg during its 2010 April outburst. We argue that the observed radio emission was produced by synchrotron emission from a transient radio jet. Comparing the radio light curves from previous and subsequent...
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2010-01-01
Shankar, Francesco, Sivakoff, Gregory Robert, Vestergaard, Marianne, Dai, Xinyu
We cross-correlate the Sloan Digital Sky Survey Data Release 3 quasar sample with Faint Images of the Radio Sky at Twenty centimetres (FIRST) and the Vestergaard et al. black hole (BH) mass sample to compare the mean accretion histories of optical and radio quasars. We find significant...
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2014-01-01
Curran, P. A., Coriat, Mickael, Miller-Jones, James C. A., Armstrong, R. P., Edwards, P. G., Sivakoff, Gregory Robert, Woudt, Patrick Alan, Altamirano, Diego, Belloni, Thomaso. M., Corbel, Stephane, Fender, Rob P., Körding, Elmar. G., Krimm, H. A., Markoff, Sera, Migliari, Simone, Russell, D. M., Stevens, J., Tzioumis, T.
Swift J1745−26 is an X-ray binary towards the Galactic Centre that was detected when it went into outburst in 2012 September. This source is thought to be one of a growing number of sources that display ‘failed outbursts’, in which the self-absorbed radio jets of the transient source are never...
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2014-01-01
Russell, Thomas D., Soria, Roberto, Miller-Jones, James C. A., Curran, P. A., Markoff, Sera, Russell, D. M., Sivakoff, Gregory Robert
We present the results of our quasi-simultaneous radio, submm, infrared, optical and X-ray study of the Galactic black hole candidate X-ray binary MAXI J1836−194 during its 2011 outburst. We consider the full multiwavelength spectral evolution of the outburst, investigating whether the evolution...
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2017-01-01
Rushton, Anthony P., Miller-Jones, James C. A., Curran, P. A., Sivakoff, Gregory Robert, Rupen, Michael P., Paragi, Zsolt, Spencer, Ralph E., Yang, Jinhyuk, Altamirano, Diego, Belloni, Thomaso M., Fender, Rob P., Krimm, H. A., Maitra, D., Migliari, Simone, Russell, D. M., Russell, Thomas D., Soria, Roberto, Tudose, Valeriu
Black hole X-ray binaries undergo occasional outbursts caused by changing inner accretion flows. Here we report high angular resolution radio observations of the 2013 outburst of the black hole candidate X-ray binary system XTE J1908+094, using data from the Very Long Baseline Array and European...
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2017-01-01
Mooley, Kunal. P., Miller-Jones, James. C. A., Fender, Rob P., Sivakoff, Gregory Robert, Rumsey, C., Perrott, Y., Titterington, David, Grainge, K. J. B., Russell, Thomas D., Carey, S. H., Hickish, Jack, Razavi-Ghods, Nima, Scaife, A., Scott, P., Waagen, Elizabeth O.
The connection between accretion and jet production in accreting white dwarf binary systems, especially dwarf novae, is not well understood. Radio wavelengths provide key insights into the mechanisms responsible for accelerating electrons, including jets and outflows. Here, we present densely...
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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...
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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...