Theoretical astrophysics and plasma physics at RPC

Research group

Research theme

Sub department

About

Related research groups

The central kinematics of NGC 1399 measured with 14 pc resolution

Monthly Notices of the Royal Astronomical Society 367 (2006) 2-18

Authors:

SJ Magorrian, R.C.W. Houghton, M. Sarzi, N. Thatte
More details from the publisher
More details
Details from ArXiV

Finding the Electromagnetic Counterparts of Cosmological Standard Sirens

The Astrophysical Journal American Astronomical Society 637:1 (2006) 27-37

Authors:

Bence Kocsis, Zsolt Frei, Zoltán Haiman, Kristen Menou
More details from the publisher
More details
Details from ArXiV

Astronomy. Triangulating the galaxy.

Science 311:5757 (2006) 44-45
More details from the publisher

Triangulating the galaxy

Science 311:5757 (2006) 44-45
More details from the publisher

Clues from microquasars to the origin of radio-loudness of quasars

International Conference Recent Advances in Natural Language Processing, RANLP (2006)

Authors:

C Nipoti, KM Blundell, J Binney

Abstract:

We analysed the long-term variability of four microquasars (GRS 1915+105, Cyg X-1, Cyg X-3, and Sco X-1) in radio and X rays. The results of our analysis indicate the existence of two distinct modes of energy output, which we refer to as the 'coupled' mode and the 'flaring' mode. The coupled mode is responsible for mildly fluctuating, flat-spectrum radio emission, coupled with the X-ray emission; the flaring mode produces powerful, steep-spectrum radio flares, with no significant counterpart in X rays. We find that the fraction of time spent by a typical microquasar in the flaring mode is similar to the fraction of quasars that are radio-loud. This is consistent with the hypothesis that radio-loudness of quasars is a function of the epoch at which the source is observed.