Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Trippe, M."'
Autor:
Vasudevan, R. V., Fabian, A. C., Mushotzky, R. F., Meléndez, M., Winter, L. M., Trippe, M. L.
The Effective Eddington Limit for dusty gas surrounding AGN is lower than the canonical Eddington limit for hydrogen gas. Previous results from the Swift/BAT 9-month catalogue suggested that in the overwhelming majority of local AGN, the dusty absorb
Externí odkaz:
http://arxiv.org/abs/1303.0009
Autor:
Veilleux, S., Trippe, M., Hamann, F., Rupke, D. S. N., Tripp, T. M., Netzer, H., Lutz, D., Sembach, K. R., Krug, H., Teng, S. H., Genzel, R., Maiolino, R., Sturm, E., Tacconi, L.
Mrk 231, the nearest (z = 0.0422) quasar, hosts both a galactic-scale wind and a nuclear-scale iron low-ionization broad absorption line (FeLoBAL) outflow. We recently obtained a far-ultraviolet (FUV) spectrum of this object covering ~1150 - 1470 A w
Externí odkaz:
http://arxiv.org/abs/1212.2401
Autor:
Reynolds, C. S., Brenneman, L. W., Lohfink, A. M., Trippe, M. L., Miller, J. M., Fabian, A. C., Nowak, M. A.
The analysis of relativistically broadened X-ray spectral features from the inner accretion disk provides a powerful tool for measuring the spin of supermassive black holes (SMBH) in active galactic nuclei (AGN). However, AGN spectra are often comple
Externí odkaz:
http://arxiv.org/abs/1204.5747
Autor:
Reynolds, C. S., Brenneman, L. W., Lohfink, A. M., Trippe, M. L., Miller, J. M., Reis, R. C., Nowak, M. A., Fabian, A. C.
In addition to providing vital clues as to the formation and evolution of black holes, the spin of black holes may be an important energy source in the Universe. Over the past couple of years, tremendous progress has been made in the realm of observa
Externí odkaz:
http://arxiv.org/abs/1112.0036
Autor:
Reis, R. C., Fabian, A. C., Reynolds, C. S., Brenneman, L. W., Walton, D. J., Trippe, M., Miller, J. M., Mushotzky, R. F., Nowak, M. A.
NGC 3783 was observed for approximately 210ks by Suzaku and in this time showed significant spectral and flux variability at both short (20ks) and long (100ks) time scales. The full observation is found to consist of approximately six "spectral perio
Externí odkaz:
http://arxiv.org/abs/1110.6226
We present XMM-Newton observations of three AGN taken as part of a hunt to find very heavily obscured Compton-thick AGN. For obscuring columns greater than 10^25 cm^-2, AGN are only visible at energies below 10 keV via reflected/scattered radiation,
Externí odkaz:
http://arxiv.org/abs/1105.0893
Autor:
Brenneman, L. W., Reynolds, C. S., Nowak, M. A., Reis, R. C., Trippe, M., Fabian, A. C., Iwasawa, K., Lee, J. C., Miller, J. M., Mushotzky, R. F., Nandra, K., Volonteri, M.
The Suzaku AGN Spin Survey is designed to determine the supermassive black hole spin in six nearby active galactic nuclei (AGN) via deep Suzaku stares, thereby giving us our first glimpse of the local black hole spin distribution. Here, we present an
Externí odkaz:
http://arxiv.org/abs/1104.1172
Autor:
Trippe, M. L., Crenshaw, D. M., Deo, R. P., Dietrich, M., Kraemer, S. B., Rafter, S. E., Turner, T. J.
We focus on determining the underlying physical cause of a Seyfert galaxy's appearance as type a 1.8 or 1.9. Are these "intermediate" Seyfert types typical Seyfert 1 nuclei with reddened broad-line regions? Or are they objects with intrinsically weak
Externí odkaz:
http://arxiv.org/abs/1010.2750
We present a study of the outflowing ionized gas in the resolved narrow-line region (NLR) of the Seyfert 2 galaxy Mrk 573, and its interaction with an in- ner dust/gas disk, based on Hubble Space Telescope (HST) WFPC2 and STIS observations. From the
Externí odkaz:
http://arxiv.org/abs/1006.1875
Publikováno v:
Astrophys.J.698:106-114,2009
We have examined the physical conditions within a bright emission-line knot in the inner narrow-line region (NLR) of the Seyfert 2 galaxy Mrk 573 using optical spectra and photoionization models. The spectra were obtained with the Hubble Space Telesc
Externí odkaz:
http://arxiv.org/abs/0903.4411