“Reverberation mapping black hole accretion flows,“ Erin Kara, Assistant Professor of Physics, Massachusetts Institute of Technology Abstract: Sitting at the heart of nearly all galaxies is a massive ...

Daryl Haggard is in the Department of Physics and at the McGill Space Institute, McGill University, Montreal, Quebec H3A 2A7, Canada. Read the paper: The corona contracts in a black-hole transient ...

When the astronomical object 3C 273 was detected 1, to most optical telescopes it looked just like a star in our Galaxy. But in 1963, astronomers discovered 2, 3 that the object was shining from a ...