Search Results - "Kaiser, C R"

On the prevalence of radio-loud active galactic nuclei in brightest cluster galaxies: implications for AGN heating of cooling flows by Best, P. N., Von Der Linden, A., Kauffmann, G., Heckman, T. M., Kaiser, C. R.

“…The prevalence of radio-loud active galactic nucleus (AGN) activity in present-day massive haloes is determined using a sample of 625 nearby groups and…”
Get full text

The flat synchrotron spectra of partially self-absorbed jets revisited by Kaiser, C. R.

“…ABSTRACT Flat radio spectra with large brightness temperatures at the core of active galactic nuclei and X‐ray binaries are usually interpreted as the…”
Get full text

Evolution of Buoyant Bubbles in M87 by Churazov, E, Brüggen, M, Kaiser, C. R, Böhringer, H, Forman, W

Get full text

AGN-controlled cooling in elliptical galaxies by Best, P. N., Kaiser, C. R., Heckman, T. M., Kauffmann, G.

“…A long-standing problem for models of galaxy formation has been the mismatch between the predicted shape of the mass function of dark matter halos and the…”
Get full text

The jet-powered optical nebula of Cygnus X–1 by Russell, D. M., Fender, R. P., Gallo, E., Kaiser, C. R.

“…We present Hα and [O iii] (5007 Å) images of the nebula powered by the jet of the black hole candidate and microquasar Cygnus X–1, observed with the 2.5-m…”
Get full text

Three episodes of jet activity in the Fanaroff–Riley type II radio galaxy B0925+420 by Brocksopp, C., Kaiser, C. R., Schoenmakers, A. P., De Bruyn, A. G.

“…We present Very Large Array images of a ‘double–double radio galaxy’, a class of objects in which two pairs of lobes are aligned either side of the nucleus. In…”
Get full text

Double-double radio galaxies: further insights into the formation of the radio structures by Brocksopp, C., Kaiser, C. R., Schoenmakers, A. P., de Bruyn, A. G.

“…Double-double radio galaxies (DDRGs) offer a unique opportunity for us to study multiple episodes of jet activity in large-scale radio sources. We use radio…”
Get full text

Fundamental properties of Fanaroff-Riley type II radio galaxies investigated via Monte Carlo simulations by Kapińska, A. D., Uttley, P., Kaiser, C. R.

“…Abstract Radio galaxies and quasars are among the largest and most powerful single objects known and are believed to have had a significant impact on the…”
Get full text

A relativistic mixing-layer model for jets in low-luminosity radio galaxies by Wang, Y., Kaiser, C. R., Laing, R., Alexander, P., Pavlovski, G., Knigge, C.

“…We present an analytical model for jets in Fanaroff & Riley Class I (FR I) radio galaxies, in which an initially laminar, relativistic flow is surrounded by a…”
Get full text

Evolutionary tracks of FRII sources through the P-D diagram by Kaiser, Christian R., Dennett-Thorpe, Jane, Alexander, Paul

“…This is the second in a series of papers presenting an analytical model for the evolution of FRII radio sources. In this paper we evaluate the expected radio…”
Get full text

The large-scale jet-powered radio nebula of Circinus X-1 by Tudose, V., Fender, R. P., Kaiser, C. R., Tzioumis, A. K., Van Der Klis, M., Spencer, R. E.

“…We present multi-epoch observations of the radio nebula around the neutron star X-ray binary Circinus X-1 made at 1.4 and 2.5 GHz with the Australia Telescope…”
Get full text

Simple models of cooling flows by Kaiser, Christian R., Binney, James

“…ABSTRACT A semi‐analytic model of cluster cooling flows is presented. The model assumes that episodic nuclear activity followed by radiative cooling without…”
Get full text

Radio synchrotron spectra for a leaky box approximation by Kaiser, C. R.

“…The synchrotron emission observed from many astrophysical objects is commonly modelled as arising from relativistic electrons in an emission region occupied by…”
Get full text

Buoyant radio plasma in clusters of galaxies by Brüggen, M., Kaiser, C.R.

“…Radio galaxies are known to inflate lobes of hot relativistic plasmas into the intergalactic medium. Here we present hydrodynamical and magnetohydrodynamical…”
Get full text

Radio galaxies with a ‘double-double morphology’- I. Analysis of the radio properties and evidence for interrupted activity in active galactic nuclei by Schoenmakers, Arno P., de Bruyn, A. G., Röttgering, H. J. A., van der Laan, H., Kaiser, C. R.

“…We present four Mpc-sized radio galaxies which consist of a pair of double-lobed radio sources, aligned along the same axis, and with a coinciding radio core…”
Get full text

iShocks: X-ray binary jets with an internal shocks model by Jamil, O., Fender, R. P., Kaiser, C. R.

“…In the following paper, we present an internal shocks model, iShocks, for simulating a variety of relativistic jet scenarios; these scenarios can range from a…”
Get full text

Synthesis and antimycobacterial evaluation of N'-(E)-heteroaromaticpyrazine-2-carbohydrazide derivatives by Lima, C H S, Henriques, M G M O, Candéa, A L P, Lourenço, M C S, Bezerra, F A F M, Ferreira, M L, Kaiser, C R, de Souza, M V N

“…A series of nine N'-(E)-heteroaromatic-pyrazine-2-carbohydrazide derivatives (5a-f and 6a-c) have been synthesized and evaluated against M. tuberculosis ATCC…”
Get more information

The depolarization properties of powerful extragalactic radio sources as a function of cosmic epoch by Goodlet, J. A., Kaiser, C. R.

“…We use the observed polarization properties of a sample of 26 powerful radio galaxies and radio-loud quasars to constrain the conditions in the Faraday screens…”
Get full text

Simulation of radio plasma in clusters of galaxies by Brüggen, M., Kaiser, C. R., Churazov, E., Enßlin, T. A.

“…We present three-dimensional hydrodynamical simulations of buoyant gas in a typical cluster environment. In these simulations, hot matter was injected…”
Get full text

Luminosity function, sizes and FR dichotomy of radio‐loud AGN by Kaiser, Christian R., Best, Philip N.

“…The radio luminosity function (RLF) of radio galaxies and radio‐loud quasars is often modelled as a broken power law. The break luminosity is close to the…”
Get full text