Zobrazeno 1 - 10
of 291
pro vyhledávání: '"Radomski J"'
Autor:
Shuping, R. Y., Krzaczek, R., Vacca, W. D., Charcos-Llorens, M., Reach, W. T., Alles, R., Clarke, M., Melchiorri, R., Radomski, J., Shenoy, S., Sandel, D., Omelian, E. B.
The Stratospheric Observatory for Infrared Astronomy (SOFIA) is an airborne astronomical observatory comprised of a 2.5-meter telescope mounted in the aft section of a Boeing 747SP aircraft. During routine operations, several instruments will be avai
Externí odkaz:
http://arxiv.org/abs/1412.5546
Autor:
Mason, R. E., Lopez-Rodriguez, E., Packham, C., Alonso-Herrero, A., Levenson, N. A., Radomski, J., Almeida, C. Ramos, Colina, L., Elitzur, M., Aretxaga, I., Roche, P. F., Oi, N.
We present high-resolution mid-infrared (MIR) imaging, nuclear spectral energy distributions (SEDs) and archival Spitzer spectra for 22 low-luminosity active galactic nuclei (LLAGN; Lbol \lesssim 10^42 erg/sec). Infrared (IR) observations may advance
Externí odkaz:
http://arxiv.org/abs/1205.0029
Autor:
Almeida, Cristina Ramos, Levenson, N. A., Alonso-Herrero, A., Ramos, A. Asensio, Espinosa, J. M. Rodriguez, Garcia, A. M. Perez, Packham, C., Mason, R., Radomski, J. T., Diaz-Santos, T.
We present near-to-mid-infrared spectral energy distributions (SEDs) for 21 Seyfert galaxies, using subarcsecond resolution imaging data. Our aim is to compare the properties Seyfert 1 (Sy1) and Seyfert 2 (Sy2) tori using clumpy torus models and a Ba
Externí odkaz:
http://arxiv.org/abs/1201.4240
Autor:
Mason, R E, Lopez-Rodriguez, E, Packham, C, Alonso-Herrero, A, Levenson, N A, Radomski, J, Almeida, C Ramos, Colina, L, Elitzur, M, Aretxaga, I, Roche, P F, Oi, N
We have obtained high-resolution mid-infrared (MIR) imaging, nuclear spectral energy distributions (SEDs) and archival Spitzer spectra for 22 low-luminosity active galactic nuclei (LLAGN; L_bol < 5 x 10^42 erg/s). Infrared (IR) observations may advan
Externí odkaz:
http://arxiv.org/abs/1201.4209
Autor:
Almeida, C. Ramos, Levenson, N. A., Alonso-Herrero, A., Ramos, A. Asensio, Espinosa, J. M. Rodriguez, Garcia, A. M. Perez, Packham, C., Mason, R., Radomski, J. T., Diaz-Santos, T.
We present new mid-infrared (MIR) imaging data for three Type-1 Seyfert galaxies obtained with T-ReCS on the Gemini-South Telescope at subarcsecond resolution. Our aim is to enlarge the sample studied in a previous work to compare the properties of T
Externí odkaz:
http://arxiv.org/abs/1101.3335
Dust reprocesses the intrinsic radiation of active galactic nuclei (AGNs) to emerge at longer wavelengths. The observed mid-infrared (MIR) luminosity depends fundamentally on the luminosity of the central engine, but in detail it also depends on the
Externí odkaz:
http://arxiv.org/abs/0908.0036
Autor:
Packham, C., Young, S., Fisher, R. S., Volk, K., Mason, R., Hough, J. H., Roche, P. F., Elitzur, M., Radomski, J., Perlman, E.
We present diffraction limited, 10um imaging polarimetry data for the central regions of the archetypal Seyfert AGN, NGC1068. The position angle of polarization is consistent with three dominant polarizing mechanisms. We identify three distinct regio
Externí odkaz:
http://arxiv.org/abs/0704.1250
Autor:
Mason, R. E., Levenson, N. A., Packham, C., Elitzur, M., Radomski, J., Petric, A. O., Wright, G. S.
Publikováno v:
Astrophys.J.659:241-249,2007
The nucleus of the nearby galaxy, NGC 1097, is known to host a young, compact (r < 9 parsec) nuclear star cluster as well as a low-luminosity active galactic nucleus (AGN). It has been suggested both that the nuclear stellar cluster is associated wit
Externí odkaz:
http://arxiv.org/abs/astro-ph/0701124
Autor:
Diaz-Santos, T., Alonso-Herrero, A., Colina, L., Packham, C., Radomski, J. T., Telesco, C. M.
We present T-ReCS high spatial resolution N-band (8-13 micron) spectroscopy of the central regions (a few kpc) of 3 local LIRGs. The nuclear spectra show deep 9.7 micron silicate absorption feature and the high ionization [SIV]10.5 micron emission li
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610616
Autor:
Alonso-Herrero, A., Colina, L., Packham, C., Diaz-Santos, T., Rieke, G. H., Radomski, J., Telesco, C. M.
Publikováno v:
Astrophys.J.652:L83-L88,2006
We present diffraction-limited (FWHM ~ 0.3arcsec) Gemini/T-ReCS mid-infrared (MIR: N-band or narrow-band at 8.7micron) imaging of four Luminous Infrared Galaxies (LIRGs) drawn from a representative local sample. The MIR emission in the central few kp
Externí odkaz:
http://arxiv.org/abs/astro-ph/0610394