Zobrazeno 1 - 10
of 252
pro vyhledávání: '"Sivakoff, Gregory R"'
Autor:
Andersson, Alex, Lintott, Chris, Fender, Rob, Lochner, Michelle, Woudt, Patrick, Eijnden, Jakob van den, van der Horst, Alexander, Horesh, Assaf, Saikia, Payaswini, Sivakoff, Gregory R., Tremou, Lilia, Vaccari, Mattia
In this work we explore the applicability of unsupervised machine learning algorithms to the task of finding radio transients. Facilities such as the Square Kilometre Array (SKA) will provide huge volumes of data in which to detect rare transients; t
Externí odkaz:
http://arxiv.org/abs/2410.01034
Autor:
Heinke, Craig O., Zheng, Junwen, Maccarone, Thomas J., Degenaar, Nathalie, Bahramian, Arash, Sivakoff, Gregory R.
Many X-ray binaries are transiently accreting. Having statistics on their recurrence times is helpful to address questions related to binary evolution and populations, as well as the physics of binary systems. We compile a catalog of known outbursts
Externí odkaz:
http://arxiv.org/abs/2407.18867
Autor:
Anumarlapudi, Akash, Dobie, Dougal, Kaplan, David L., Murphy, Tara, Horesh, Assaf, Lenc, Emil, Driessen, Laura N., Duchesne, Stefan W., Dykaar, Ms. Hannah, Gaensler, Bryan M., Galvin, Timothy J., Grundy, J. A., Heald, George, Hotan, Aidan, Huynh, Minh, Leung, James, McConnell, David, Moss, Vanessa A., Pritchard, Joshua, Raja, Wasim, Rose, Kovi, Sivakoff, Gregory R., Wang, Yuanming, Wang, Ziteng, Wieringa, Mark, Whiting, M. T.
Late-time ($\sim$ year) radio follow-up of optically-discovered tidal disruption events (TDEs) is increasingly resulting in detections at radio wavelengths, and there is growing evidence for this late-time radio activity to be common to the broad cla
Externí odkaz:
http://arxiv.org/abs/2407.12097
Autor:
Wood, Callan M., Miller-Jones, James C. A., Bahramian, Arash, Tingay, Steven J., Prabu, Steve, Russell, Thomas D., Atri, Pikky, Carotenuto, Francesco, Altamirano, Diego, Motta, Sara E., Hyland, Lucas, Reynolds, Cormac, Weston, Stuart, Fender, Rob, Körding, Elmar, Maitra, Dipankar, Markoff, Sera, Migliari, Simone, Russell, David M., Sarazin, Craig L., Sivakoff, Gregory R., Soria, Roberto, Tetarenko, Alexandra J., Tudose, Valeriu
Multi-wavelength polarimetry and radio observations of Swift J1727.8-1613 at the beginning of its recent 2023 outburst suggested the presence of a bright compact jet aligned in the north-south direction, which could not be confirmed without high angu
Externí odkaz:
http://arxiv.org/abs/2405.12370
Autor:
Ng, Mason, Hughes, Andrew K., Homan, Jeroen, Miller, Jon M., Pike, Sean N., Altamirano, Diego, Bult, Peter, Chakrabarty, Deepto, Buisson, D. J. K., Coughenour, Benjamin M., Fender, Rob, Guillot, Sebastien, Güver, Tolga, Jaisawal, Gaurava K., Jaodand, Amruta D., Malacaria, Christian, Miller-Jones, James C. A., Sanna, Andrea, Sivakoff, Gregory R., Strohmayer, Tod E., Tomsick, John A., Eijnden, Jakob van den
We report on X-ray (NICER/NuSTAR/MAXI/Swift) and radio (MeerKAT) timing and spectroscopic analysis from a three-month monitoring campaign in 2022 of a high-intensity outburst of the dipping neutron star low-mass X-ray binary 1A 1744-361. The 0.5-6.8
Externí odkaz:
http://arxiv.org/abs/2310.01511
Publikováno v:
MNRAS 519 (2023) 5922-5930
We report two new radio detections of cataclysmic variables (CVs), and place them in context with radio and X-ray detections of other CVs. We detected QS Vir, a low accretion-rate CV; V2400 Oph, a diskless intermediate polar (IP); and recovered the p
Externí odkaz:
http://arxiv.org/abs/2303.01438
Autor:
Hughes, Andrew K., Sivakoff, Gregory R., Macpherson, Christopher E., Miller-Jones, James C. A., Tetarenko, Alexandra J., Altamirano, Diego, Anderson, Gemma E., Belloni, Tomaso M., Heinz, Sebastian, Jonker, Peter G., Körding, Elmar G., Maitra, Dipankar, Markoff, Sera B., Migliari, Simone, Mooley, Kunal P., Rupen, Michael P., Russell, David M., Russell, Thomas D., Sarazin, Craig L., Soria, Roberto, Tudose, Valeriu
We present a high time resolution, multi-frequency linear polarization analysis of Very Large Array (VLA) radio observations during some of the brightest radio flaring (~1 Jy) activity of the 2015 outburst of V404 Cygni. The VLA simultaneously captur
Externí odkaz:
http://arxiv.org/abs/2301.13281
Autor:
Goodwin, Adelle J., Miller-Jones, James, van Velzen, Sjoert, Bietenholz, Michael, Greenland, Jasper, Cenko, Brad, Gezari, Suvi, Horesh, Assaf, Sivakoff, Gregory R., Yan, Lin, Yu, Wen-fei, Zhang, Xian
Tidal disruption events (TDEs) occur when a star passes too close to a supermassive black hole and is destroyed by tidal gravitational forces. Radio observations of TDEs trace synchrotron emission from outflowing material that may be ejected from the
Externí odkaz:
http://arxiv.org/abs/2208.13967
Autor:
Saikia, Payaswini, Russell, David M., Baglio, M. C., Bramich, D. M., Casella, Piergiorgio, Trigo, M. Diaz, Gandhi, Poshak, Jiang, Jiachen, Maccarone, Thomas, Soria, Roberto, Noori, Hind Al, Yazeedi, Aisha Al, Alabarta, Kevin, Belloni, Tomaso, Bel, Marion Cadolle, Ceccobello, Chiara, Corbel, Stephane, Fender, Rob, Gallo, Elena, Homan, Jeroen, Koljonen, Karri, Lewis, Fraser, Markoff, Sera B., Miller-Jones, James C. A., Rodriguez, Jerome, Russell, Thomas D., Shahbaz, Tariq, Sivakoff, Gregory R., Testa, Vincenzo, Tetarenko, Alexandra J.
We present a detailed study of the evolution of the Galactic black hole transient GRS 1716-249 during its 2016-2017 outburst at optical (Las Cumbres Observatory), mid-infrared (Very Large Telescope), near-infrared (Rapid Eye Mount telescope), and ult
Externí odkaz:
http://arxiv.org/abs/2205.04452
Autor:
Wang, Yuanming, Murphy, Tara, Kaplan, David L., Klinner-Teo, Teresa, Ridolfi, Alessandro, Bailes, Matthew, Crawford, Fronefield, Dai, Shi, Dobie, Dougal, Gaensler, B. M., Graber, Vanessa, Heywood, Ian, Lenc, Emil, Lorimer, Duncan R., McLaughlin, Maura A., O'Brien, Andrew, Pintaldi, Sergio, Pritchard, Joshua, Rea, Nanda, Ridley, Joshua P., Ronchi, Michele, Shannon, Ryan M., Sivakoff, Gregory R., Stewart, Adam, Wang, Ziteng, Zic, Andrew
We report the discovery of a highly circularly polarized, variable, steep-spectrum pulsar in the Australian Square Kilometre Array Pathfinder (ASKAP) Variables and Slow Transients (VAST) survey. The pulsar is located about $1^\circ$ from the center o
Externí odkaz:
http://arxiv.org/abs/2205.00622