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Positron annihilation spectrum from the Galactic Center region observed by SPI/INTEGRAL
E. Churazov, R. Sunyaev, S. Sazonov +2
The electron-positron annihilation spectrum observed by SPI/INTEGRAL during deep Galactic Center region exposure is reported. The line energy (510.9540.075 keV) is consistent…
Radiative feedback from quasars and the growth of massive black holes in stellar spheroids
S. Yu. Sazonov, J. P. Ostriker, L. Ciotti +1
We discuss the importance of feedback via photoionization and Compton heating on the co-evolution of massive black holes (MBHs) at the center of spheroidal galaxies and their stell…
Radiative Feedback from Quasars and the Growth of Supermassive Black Holes
S. Yu. Sazonov, J. P. Ostriker, L. Ciotti +1
We discuss the role of feedback via photoionization and Compton heating in the co-evolution of massive black holes at the center of spheroidal galaxies and their stellar and gaseou…
A physically motivated toy model for the BH-spheroid coevolution
L. Ciotti, J. P. Ostriker, S. Yu. Sazonov
We present a summary of the results obtained with a time-dependent, one-zone toy model aimed at exploring the importance of radiative feedback on the co-evolution of massive black…
Scattering in the vicinity of relativistic jets: a method for constraining jet parameters
Conrad Cramphorn, Sergey Sazonov, Rashid Sunyaev
Relativistic jets of radio loud active galactic nuclei (AGN) produce highly directed, intense beams of radiation. A fraction of this beamed radiation scatters on the thermal plasma…
Statistical properties of local active galactic nuclei inferred from the RXTE 3-20 keV all-sky survey
S. Sazonov, M. Revnivtsev
We compiled a sample of 95 AGNs serendipitously detected in the 3-20 keV band at Galactic latitude |b|>10 during the RXTE slew survey (XSS, Revnivtsev et al.), and utilize it to st…