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Your search keyword '"Kaaret, P."' showing total 2 results
Start Over Author "Kaaret, P." Topic astronomical observations Topic supermassive black holes
2 results on '"Kaaret, P."'

1. The compact jet of the black hole candidate XTE J1550-564 during the 2000 X-ray outburst.

Author

Corbel, S., Kaaret, P., Jain, R. K., Bailyn, C. D., Fender, R. P., Tomsick, J. A., Kalemci, E., McIntyre, V., Campbell-Wilson, D., Miller, J. M., and McCollough, M. L.

Subjects
*SUPERMASSIVE black holes, *X-ray bursts, *ASTRONOMICAL observations, *ASTROPHYSICAL jets
Abstract

We report on radio, near-infrared, optical and X-ray observations of the black hole candidate (BHC) XTE J1550-564 performed during its 2000 X-ray outburst. These observations have allowed us to sample the behavior of XTE J1550-564 in the X-ray Low Hard and Intermediate/Very High states. The radio emission in the Low Hard state most likely originates from a compact jet and the synchrotron emission from this jet may extend up to the optical range or beyond, therefore indicating that the total power of the compact jet is a significant fraction of the total luminosity of the system. In the Intermediate/Very High state the radio emission is quenched, implying a suppression of the outflow. We discuss the properties of radio emission in the X-ray states of BHCs. [ABSTRACT FROM AUTHOR]

Published
2001

2. Results from the first two years of VERITAS observations

Author

Krennrich, F., Bautista, M., Beilicke, M., Benbow, W., Boltuch, D., Bradbury, S.M., Cesarini, A., Ciupik, L., Duke, C., Finley, J.P., Finnegan, G., Fortson, L., Gall, D., Guenette, R., Gyuk, G., Hanna, D., Hui, C.M., Humensky, T.B., Kaaret, P., and Karlsson, N.

Subjects
*ASTRONOMICAL observations, *GAMMA rays, *TELESCOPES, *ASTROPHYSICS, *PARTICLES (Nuclear physics), *COSMIC rays, *SUPERMASSIVE black holes
Abstract

Abstract: The VERITAS observatory is an imaging atmospheric Cherenkov telescope array located in southern Arizona and covers an energy range between 100GeV and 30TeV. The VERITAS collaboration pursues a rigorous observing program that targets a range of key science objectives in astrophysics and particle physics; the understanding of the origin of cosmic rays, the search for supersymmetric dark matter self-annihilation, illuminating the connection between black holes and relativistic jets and constraints to the cosmological diffuse infrared background. We provide a summary of results from the first two years of observations with the full 4-telecope array reported at RICAP09. [Copyright &y& Elsevier]

Published
2011
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