Photon Ring Astrometry for Superradiant Clouds
Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt
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Photon Ring Astrometry for Superradiant Clouds. / Chen, Yifan; Xue, Xiao; Brito, Richard; Cardoso, Vitor.
I: Physical Review Letters, Bind 130, Nr. 11, 111401, 17.03.2023.Publikation: Bidrag til tidsskrift › Letter › Forskning › fagfællebedømt
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TY - JOUR
T1 - Photon Ring Astrometry for Superradiant Clouds
AU - Chen, Yifan
AU - Xue, Xiao
AU - Brito, Richard
AU - Cardoso, Vitor
PY - 2023/3/17
Y1 - 2023/3/17
N2 - Gravitational atoms produced from the superradiant extraction of rotational energy of spinning black holes can reach energy densities significantly higher than that of dark matter, turning black holes into powerful potential detectors for ultralight bosons. These structures are formed by coherently oscillating bosons, which induce oscillating metric perturbations deflecting photon geodesics passing through their interior. The deviation of nearby geodesics can be further amplified near critical bound photon orbits. We discuss the prospect of detecting this deflection using photon ring autocorrelations with the Event Horizon Telescope and its next-generation upgrade, which can probe a large unexplored region of the cloud mass parameter space when compared with previous constraints.
AB - Gravitational atoms produced from the superradiant extraction of rotational energy of spinning black holes can reach energy densities significantly higher than that of dark matter, turning black holes into powerful potential detectors for ultralight bosons. These structures are formed by coherently oscillating bosons, which induce oscillating metric perturbations deflecting photon geodesics passing through their interior. The deviation of nearby geodesics can be further amplified near critical bound photon orbits. We discuss the prospect of detecting this deflection using photon ring autocorrelations with the Event Horizon Telescope and its next-generation upgrade, which can probe a large unexplored region of the cloud mass parameter space when compared with previous constraints.
KW - M87 EVENT HORIZON
KW - BLACK-HOLE SPIN
KW - TELESCOPE RESULTS. I.
KW - MAGNETOHYDRODYNAMIC SIMULATIONS
KW - MILLISECOND PULSAR
KW - OPTICAL APPEARANCE
KW - DARK-MATTER
KW - SHADOW
KW - STAR
KW - MASS
U2 - 10.1103/PhysRevLett.130.111401
DO - 10.1103/PhysRevLett.130.111401
M3 - Letter
C2 - 37001090
VL - 130
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 11
M1 - 111401
ER -
ID: 347878847