Results 111 to 120 of about 321 (187)

Gravitational Microlensing Influence on X-ray Radiation from Accretion Disk of Active Galaxies

open access: yes, 2006
Gravitational microlensing is a very useful tool for investigating the innermost part of lensed quasars, especially for studying a relativistic accretion disk around a massive black hole (BH) supposed to exist in a quasar's center. Here we present a short overview of our recent investigations in this field.
openaire   +2 more sources

A giant disk galaxy two billion years after the Big Bang. [PDF]

open access: yesNat Astron
Wang W   +16 more
europepmc   +1 more source

Spontaneous magnetization of collisionless plasma. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Zhou M   +4 more
europepmc   +1 more source

X-ray quasi-periodic eruptions from two previously quiescent galaxies. [PDF]

open access: yesNature, 2021
Arcodia R   +23 more
europepmc   +1 more source

Quasi-periodic X-ray eruptions years after a nearby tidal disruption event. [PDF]

open access: yesNature
Nicholl M   +63 more
europepmc   +1 more source

Primordial black holes and their gravitational-wave signatures. [PDF]

open access: yesLiving Rev Relativ
Bagui E   +20 more
europepmc   +1 more source

Overview of the LAMOST survey in the first decade. [PDF]

open access: yesInnovation (Camb), 2022
Yan H   +26 more
europepmc   +1 more source

A young progenitor for the most common planetary systems in the Galaxy. [PDF]

open access: yesNature
Livingston JH   +41 more
europepmc   +1 more source

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