Zobrazeno 1 - 10
of 631
pro vyhledávání: '"Axon, D"'
Autor:
Lira, P., Kishimoto, M., Goosmann, R. W., Campos, R., Axon, D., Elvis, M., Lawrence, A., Peterson, B. M., Robinson, A.
We present results from high signal-to-noise optical spectropolarimetric observations of the Seyfert 1 galaxies NGC783 and Mrk509 in the 3500-7000 A range. We find complex structure in the polarized emission for both objects. In particular, Position
Externí odkaz:
http://arxiv.org/abs/2103.12884
Autor:
Sales, Dinalva A., Robinson, A., Axon, D. J., Gallimore, J., Kharb, P., Curran, R. L., O'Dea, C., Baum, S., Elitzur, M., Mittal, R.
We present a multiwavelength study of the OH Megamaser galaxy (OHMG) IRAS16399-0937, based on new HST/ACS F814W and H$\alpha$+[NII] images and archive data from HST, 2MASS, Spitzer, Herschel and the VLA. This system has a double nucleus, whose northe
Externí odkaz:
http://arxiv.org/abs/1411.1261
Publikováno v:
ApJ, 795, 146, 2014
The coalescence of a binary black hole can be accompanied by a large gravitational recoil due to anisotropic emission of gravitational waves. A recoiling supermassive black hole (SBH) can subsequently undergo long-lived oscillations in the potential
Externí odkaz:
http://arxiv.org/abs/1409.3976
Autor:
Ramírez, E. A., Tadhunter, C. N., Axon, D., Batcheldor, D., Packham, C., Lopez-Rodriguez, E., Sparks, W., Young, S.
We present an analysis of 2.05 $\mu$m Hubble Space Telescope (HST) polarimetric data for a sample of 13 nearby Fanaroff-Riley type II (FRII) 3CR radio sources ($0.03
Externí odkaz:
http://arxiv.org/abs/1407.2903
Autor:
Dicken, D., Tadhunter, C., Morganti, R., Axon, D., Robinson, A., Magagnoli, M., Kharb, P., Almeida, C. Ramos, Mingo, B., Hardcastle, M., Nesvadba, N. P. H., Singh, V., Kouwenhoven, M. B. N., Rose, M., Spoon, H., Inskip, K. J., Holt, J.
It remains uncertain which continuum and emission line diagnostics best indicate the bolometric powers of active galactic nuclei (AGNs), especially given the attenuation caused by the circumnuclear material and the possible contamination by component
Externí odkaz:
http://arxiv.org/abs/1405.0670
HST and Spitzer point source detection and optical extinction in powerful narrow-line radio galaxies
We present the analysis of infrared HST and Spitzer data for a sample of 13 FRII radio galaxies at 0.03
Externí odkaz:
http://arxiv.org/abs/1401.1223
The relations observed between supermassive black holes and their host galaxies suggest a fundamental link in the processes that cause these two objects to evolve. A more comprehensive understanding of these relations could be gained by increasing th
Externí odkaz:
http://arxiv.org/abs/1308.1983
We present new CRIRES spectroscopic observations of BrGamma in the nuclear region of the Circinus galaxy, obtained with the aim of measuring the black hole (BH) mass with the spectroastrometric technique. The Circinus galaxy is an ideal benchmark for
Externí odkaz:
http://arxiv.org/abs/1211.0943
Autor:
Massaro, F., Tremblay, G. R., Harris, D. E., Kharb, P., Axon, D., Balmaverde, B., Baum, S. A., Capetti, A., Chiaberge, M., Gilli, R., Giovannini, G., Grandi, P., Macchetto, F. D., O'Dea, C. P., Risaliti, G., Sparks, W., Torresi, E.
We report on the second round of Chandra observations of the 3C snapshot survey developed to observe the complete sample of 3C radio sources with z<0.3 for 8 ksec each. In the first paper, we illustrated the basic data reduction and analysis procedur
Externí odkaz:
http://arxiv.org/abs/1210.6027
Autor:
Balmaverde, B., Capetti, A., Grandi, P., Torresi, E., Chiaberge, M., Zaurin, J. Rodriguez, Tremblay, G. R., Axon, D. J., Baum, S. A., Giovannini, G., Kharb, P., Macchetto, F. D., Dea, C. P. O, Sparks, W.
We analyze Chandra observations of diffuse soft X-ray emission associated with a complete sample of 3CR radio galaxies at z < 0.3. In this paper we focus on the properties of the spectroscopic sub-classes of high excitation galaxies (HEGs) and broad
Externí odkaz:
http://arxiv.org/abs/1208.6515