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Black hole lightning due to particle acceleration at subhorizon scales

Supermassive black holes with masses of millions to billions of solar masses are commonly found in the centers of galaxies. Astronomers seek to image jet formation using radio interferometry but still suffer from insufficient angular resolution. An alternative method to resolve small structures is t... Full description

Journal Title: Science November 28, 2014, Vol.346(6213), pp.1080-1084
Main Author: Aleksic, J
Other Authors: Ansoldi, S , Antonelli, La , Antoranz, P , Babic, A , Bangale, P , Barrio, Ja , Gonzalez, Jbecerra , Bednarek, W , Bernardini, E , Biasuzzi, B , Biland, A , Blanch, O , Bonnefoy, S , Bonnoli, G , Borracci, F , Bretz, T , Carmona, E , Carosi, A , Colin
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0036-8075 ; DOI: 10.1126/science.1256183
Link: http://search.proquest.com/docview/1904249945/?pq-origsite=primo
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title: Black hole lightning due to particle acceleration at subhorizon scales
format: Article
creator:
  • Aleksic, J
  • Ansoldi, S
  • Antonelli, La
  • Antoranz, P
  • Babic, A
  • Bangale, P
  • Barrio, Ja
  • Gonzalez, Jbecerra
  • Bednarek, W
  • Bernardini, E
  • Biasuzzi, B
  • Biland, A
  • Blanch, O
  • Bonnefoy, S
  • Bonnoli, G
  • Borracci, F
  • Bretz, T
  • Carmona, E
  • Carosi, A
  • Colin
subjects:
  • Time Measurements
  • Astronomical Bodies
  • Gamma Rays
  • Black Holes (Astronomy)
  • Particle Acceleration
  • Radio
  • Images
  • Emission
  • Miscellaneous Sciences (So)
  • (An)
ispartof: Science, November 28, 2014, Vol.346(6213), pp.1080-1084
description: Supermassive black holes with masses of millions to billions of solar masses are commonly found in the centers of galaxies. Astronomers seek to image jet formation using radio interferometry but still suffer from insufficient angular resolution. An alternative method to resolve small structures is to measure the time variability of their emission. Here we report on gamma-ray observations of the radio galaxy IC 310 obtained with the MAGIC (Major Atmospheric Gamma-ray Imaging Cherenkov) telescopes, revealing variability with doubling time scales faster than 4.8 min. Causality constrains the size of the emission region to be smaller than 20% of the gravitational radius of its central black hole. We suggest that the emission is associated with pulsar-like particle acceleration by the electric field across a magnetospheric gap at the base of the radio jet. Timing tells the structure of the unseenNothing can move faster than the speed of light, but some gamma rays seem...
language: eng
source:
identifier: ISSN: 0036-8075 ; DOI: 10.1126/science.1256183
fulltext: no_fulltext
issn:
  • 00368075
  • 0036-8075
url: Link


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titleBlack hole lightning due to particle acceleration at subhorizon scales
creatorAleksic, J ; Ansoldi, S ; Antonelli, La ; Antoranz, P ; Babic, A ; Bangale, P ; Barrio, Ja ; Gonzalez, Jbecerra ; Bednarek, W ; Bernardini, E ; Biasuzzi, B ; Biland, A ; Blanch, O ; Bonnefoy, S ; Bonnoli, G ; Borracci, F ; Bretz, T ; Carmona, E ; Carosi, A ; Colin
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ispartofScience, November 28, 2014, Vol.346(6213), pp.1080-1084
identifierISSN: 0036-8075 ; DOI: 10.1126/science.1256183
subjectTime Measurements ; Astronomical Bodies ; Gamma Rays ; Black Holes (Astronomy) ; Particle Acceleration ; Radio ; Images ; Emission ; Miscellaneous Sciences (So) ; (An)
descriptionSupermassive black holes with masses of millions to billions of solar masses are commonly found in the centers of galaxies. Astronomers seek to image jet formation using radio interferometry but still suffer from insufficient angular resolution. An alternative method to resolve small structures is to measure the time variability of their emission. Here we report on gamma-ray observations of the radio galaxy IC 310 obtained with the MAGIC (Major Atmospheric Gamma-ray Imaging Cherenkov) telescopes, revealing variability with doubling time scales faster than 4.8 min. Causality constrains the size of the emission region to be smaller than 20% of the gravitational radius of its central black hole. We suggest that the emission is associated with pulsar-like particle acceleration by the electric field across a magnetospheric gap at the base of the radio jet. Timing tells the structure of the unseenNothing can move faster than the speed of light, but some gamma rays seem...
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titleBlack hole lightning due to particle acceleration at subhorizon scales
descriptionSupermassive black holes with masses of millions to billions of solar masses are commonly found in the centers of galaxies. Astronomers seek to image jet formation using radio interferometry but still suffer from insufficient angular resolution. An alternative method to resolve small structures is to measure the time variability of their emission. Here we report on gamma-ray observations of the radio galaxy IC 310 obtained with the MAGIC (Major Atmospheric Gamma-ray Imaging Cherenkov) telescopes, revealing variability with doubling time scales faster than 4.8 min. Causality constrains the size of the emission region to be smaller than 20% of the gravitational radius of its central black hole. We suggest that the emission is associated with pulsar-like particle acceleration by the electric field across a magnetospheric gap at the base of the radio jet. Timing tells the structure of the unseenNothing can move faster than the speed of light, but some gamma rays seem...
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titleBlack hole lightning due to particle acceleration at subhorizon scales
authorAleksic, J ; Ansoldi, S ; Antonelli, La ; Antoranz, P ; Babic, A ; Bangale, P ; Barrio, Ja ; Gonzalez, Jbecerra ; Bednarek, W ; Bernardini, E ; Biasuzzi, B ; Biland, A ; Blanch, O ; Bonnefoy, S ; Bonnoli, G ; Borracci, F ; Bretz, T ; Carmona, E ; Carosi, A ; Colin
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abstractSupermassive black holes with masses of millions to billions of solar masses are commonly found in the centers of galaxies. Astronomers seek to image jet formation using radio interferometry but still suffer from insufficient angular resolution. An alternative method to resolve small structures is to measure the time variability of their emission. Here we report on gamma-ray observations of the radio galaxy IC 310 obtained with the MAGIC (Major Atmospheric Gamma-ray Imaging Cherenkov) telescopes, revealing variability with doubling time scales faster than 4.8 min. Causality constrains the size of the emission region to be smaller than 20% of the gravitational radius of its central black hole. We suggest that the emission is associated with pulsar-like particle acceleration by the electric field across a magnetospheric gap at the base of the radio jet. Timing tells the structure of the unseenNothing can move faster than the speed of light, but some gamma rays seem...
doi10.1126/science.1256183
urlhttp://search.proquest.com/docview/1904249945/
eissn10959203
date2014-11-28