Professor Rob Fender: Publications

An artist's impression of a relativistic jet propagating away from a black hole at close to the speed of light. Such jets are formed by the inner regions of the accretion flow: matter flowing inwards towards the black hole, via processes which are not yet fully understood. The accretion flow emits primarily in X-rays, the relativistic jet in the radio band: by combing observations in each band we can try and understand how such jets form and how much energy they carry away from the black hole.

Lunar occultation of the diffuse radio sky: LOFAR measurements between 35 and 80 MHz

(2014)

Authors:

HK Vedantham, LVE Koopmans, AG de Bruyn, SJ Wijnholds, M Brentjens, FB Abdalla, KMB Asad, G Bernardi, S Bus, E Chapman, B Ciardi, S Daiboo, ER Fernandez, A Ghosh, G Harker, V Jelic, H Jensen, S Kazemi, P Lambropoulos, O Martinez-Rubi, G Mellema, M Mevius, AR Offringa, VN Pandey, AH Patil, RM Thomas, V Veligatla, S Yatawatta, S Zaroubi, J Anderson, A Asgekar, ME Bell, MJ Bentum, P Best, A Bonafede, F Breitling, J Broderick, M Brüggen, HR Butcher, A Corstanje, F de Gasperin, E de Geus, A Deller, S Duscha, J Eislöffel, D Engels, H Falcke, RA Fallows, R Fender, C Ferrari, W Frieswijk, MA Garrett, J Grießmeier, AW Gunst, TE Hassall, G Heald, M Hoeft, J Hörandel, M Iacobelli, E Juette, VI Kondratiev, M Kuniyoshi, G Kuper, G Mann, S Markoff, R McFadden, D McKay-Bukowski, DD Mulcahy, H Munk, A Nelles, MJ Norden, E Orru, M Pandey-Pommier, R Pizzo, AG Polatidis, W Reich, A Renting, H Röttgering, D Schwarz, A Shulevski, O Smirnov, BW Stappers, M Steinmetz, J Swinbank, M Tagger, Y Tang, C Tasse, S ter Veen, S Thoudam, C Toribio, C vocks, MW Wise, O Wucknitz, P Zarka

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An overview of jets and outflows in stellar mass black holes

(2014)

Authors:

Rob Fender, Elena Gallo

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Initial LOFAR observations of Epoch of Reionization windows: II. Diffuse polarized emission in the ELAIS-N1 field

(2014)

Authors:

V Jelic, AG de Bruyn, M Mevius, FB Abdalla, KMB Asad, G Bernardi, MA Brentjens, S Bus, E Chapman, B Ciardi, S Daiboo, ER Fernandez, A Ghosh, G Harker, H Jensen, S Kazemi, LVE Koopmans, P Labropoulos, O Martinez-Rubi, G Mellema, AR Offringa, VN Pandey, AH Patil, RM Thomas, HK Vedantham, V Veligatla, S Yatawatta, S Zaroubi, A Alexov, J Anderson, IM Avruch, R Beck, ME Bell, MJ Bentum, P Best, A Bonafede, J Bregman, F Breitling, J Broderick, WN Brouw, M Bruggen, HR Butcher, JE Conway, F de Gasperin, E de Geus, A Deller, R-J Dettmar, S Duscha, J Eisloffel, D Engels, H Falcke, RA Fallows, R Fender, C Ferrari, W Frieswijk, MA Garrett, J Griessmeier, AW Gunst, JP Hamaker, TE Hassall, M Haverkorn, G Heald, JWT Hessels, M Hoeft, J Horandel, A Horneffer, A van der Horst, M Iacobelli, E Juette, A Karastergiou, VI Kondratiev, M Kramer, M Kuniyoshi, G Kuper, J van Leeuwen, P Maat, G Mann, D McKay-Bukowski, JP McKean, H Munk, A Nelles, MJ Norden, H Paas, M Pandey-Pommier, G Pietka, R Pizzo, AG Polatidis, W Reich, H Rottgering, A Rowlinson, AMM Scaife, D Schwarz, M Serylak, O Smirnov, M Steinmetz, A Stewart, M Tagger, Y Tang, C Tasse, S ter Veen, S Thoudam, C Toribio, R Vermeulen, C Vocks, RJ van Weeren, RAMJ Wijers, SJ Wijnholds, O Wucknitz, P Zarka

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Black hole-like hysteresis and accretion states in neutron star low mass X-ray binaries

(2014)

Authors:

T Muñoz-Darias, RP Fender, SE Motta, TM Belloni

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A close-pair binary in a distant triple supermassive black hole system.

Nature 511:7507 (2014) 57-60

Authors:

RP Deane, Z Paragi, MJ Jarvis, M Coriat, G Bernardi, RP Fender, S Frey, I Heywood, H-R Klöckner, K Grainge, C Rumsey

Abstract:

Galaxies are believed to evolve through merging, which should lead to some hosting multiple supermassive black holes. There are four known triple black hole systems, with the closest black hole pair being 2.4 kiloparsecs apart (the third component in this system is at 3 kiloparsecs), which is far from the gravitational sphere of influence (about 100 parsecs for a black hole with mass one billion times that of the Sun). Previous searches for compact black hole systems concluded that they were rare, with the tightest binary system having a separation of 7 parsecs (ref. 10). Here we report observations of a triple black hole system at redshift z = 0.39, with the closest pair separated by about 140 parsecs and significantly more distant from Earth than any other known binary of comparable orbital separation. The effect of the tight pair is to introduce a rotationally symmetric helical modulation on the structure of the large-scale radio jets, which provides a useful way to search for other tight pairs without needing extremely high resolution observations. As we found this tight pair after searching only six galaxies, we conclude that tight pairs are more common than hitherto believed, which is an important observational constraint for low-frequency gravitational wave experiments.

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Professor Rob Fender

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Lunar occultation of the diffuse radio sky: LOFAR measurements between 35 and 80 MHz

Authors:

An overview of jets and outflows in stellar mass black holes

Authors:

Initial LOFAR observations of Epoch of Reionization windows: II. Diffuse polarized emission in the ELAIS-N1 field

Authors:

Black hole-like hysteresis and accretion states in neutron star low mass X-ray binaries

Authors:

A close-pair binary in a distant triple supermassive black hole system.

Authors:

Abstract:

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Professor Rob Fender

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Lunar occultation of the diffuse radio sky: LOFAR measurements between 35 and 80 MHz

Authors:

An overview of jets and outflows in stellar mass black holes

Authors:

Initial LOFAR observations of Epoch of Reionization windows: II. Diffuse polarized emission in the ELAIS-N1 field

Authors:

Black hole-like hysteresis and accretion states in neutron star low mass X-ray binaries

Authors:

A close-pair binary in a distant triple supermassive black hole system.

Authors:

Abstract: