Now showing items 1-9 of 9

    • Estimations of the magnetic field strength in the torus of IC 5063 using near-infrared polarimetry 

      López-Rodríguez, E.; Packham, Christopher C.; Young, Stuart; Elitzur, Moshe; Levenson, Nancy A.; Mason, Rachel E.; Ramos Almeida, Cristina; Alonso-Herrero, Almudena; Jones, T. J.; Perlman, Eric S. (2013-05)
      An optically and geometrically thick torus obscures the central engine of active galactic nuclei (AGN) from some lines of sight. From a magnetohydrodynamical framework, the torus can be considered to be a particular region ...
    • Gemini mid-IR polarimetry of NGC 1068: Polarized structures around the nucleus 

      Packham, Christopher C.; Young, Stuart; Fisher, Scott E.; Volk, Kevin M.; Mason, Rachel E.; Hough, James H.; Roche, Patrick F.; Elitzur, Moshe; Radomski, James T.; Perlman, Eric S. (2007-05-20)
      We present diffraction-limited, 10 μm imaging polarimetry data for the central regions of the archetypal Seyfert active galactic nucleus NGC 1068. The position angle of polarization is consistent with three dominant ...
    • Infrared polarimetry of Mrk 231: Scattering off hot dust grains in the central core 

      López Rodríguez, Enrique; Packham, Christopher C.; Jones, Terry Jay; Siebenmorgen, Ralf; Roche, Patrick F.; Levenson, Nancy A.; Alonso-Herrero, Almudena; Perlman, Eric S.; Ichikawa, Kohei; Ramos Almeida, Christina (2016-09-30)
      We present high-angular (0.17-0.35 arcsec) resolution imaging polarimetric observations of Mrk 231 in the 3.1 μm filter using MMT-Pol on the 6.5-m MMT, and in the 8.7, 10.3, and 11.6 μm filters using CanariCam on the 10.4-m ...
    • The mid-infrared emission of M87 

      Perlman, Eric S.; Mason, Rachel E.; Packham, Christopher C.; Levenson, Nancy A.; Elitzur, Moshe; Schaefer, Justin J.; Imanishi, Masatoshi; Sparks, William B.; Radomski, James T. (2007-07-10)
      We discuss Subaru and Spitzer Space Telescope imaging and spectroscopy of M87 in the mid-infrared (mid-IR) from 5 to 35 μm. These observations allow us to investigate mid-IR emission mechanisms in the core of M87 and to ...
    • New insights into the study of magnetic field in the clumpy torus of AGN using near-infrared polarimetry 

      López Rodríguez, Enrique; Packham, Christopher C.; Young, Stuart; Elitzur, Moshe; Levenson, Nancy A.; Mason, Rachel E.; Ramos Almeida, Christina; Alonso-Herrero, Almudena; Jones, Terry Jay; Perlman, Eric S. (2013-10-24)
      We present J, H and K., imaging polarimetry of IC5063. N1R polarimetry observations may advance our understanding of the mechanisms of polarisation and hence magnetic field strength in the torus of AGN. In these proceedings ...
    • Polarized mid-infrared synchrotron emission in the core of Cygnus A 

      López Rodríguez, Enrique; Packham, Christopher C.; Tadhunter, Clive N.; Mason, Rachel E.; Perlman, Eric S.; Alonso-Herrero, Almudena; Ramos Almeida, Cristina; Ichikawa, Kohei; Levenson, Nancy A.; Rodríguez-Espinosa, José Miguel (2014-10-01)
      We present high-angular (∼0". 4) resolution mid-infrared (MIR) polarimetric observations in the 8.7μm and 11.6μm filters of Cygnus A using CanariCam on the 10.4 m Gran Telescopio CANARIAS. A highly polarized nucleus ...
    • Science of Active Galactic Nuclei with the GTC and CanariCam 

      Levenson, Nancy A.; Packham, Christopher C.; Alonso-Herrero, Almudena; Aretxaga, Itziar; Colina, Luis; Santos, Tanio Díaz; Elitzur, Moshe; Mason, Rachel E.; Perlman, Eric S.; Radomski, James T. (2008-07-09)
      CanariCam is the facility mid-infrared (MIR) instrument for the Gran Telescopio Canarias (GTC), a 10.4m telescope at the Observatorio del Roque de los Muchachos on La Palma. One of the science drivers for CanariCam is the ...
    • Subaru spectroscopy and spectral modeling of Cygnus A 

      Merlo, Matthew J.; Perlman, Eric S.; Nikutta, Robert; Packham, Christopher C.; Elitzur, Moshe; Imanishi, Masatoshi; Levenson, Nancy A.; Radomski, James T.; Aretxaga, Itziar (2014-05-16)
      We present high angular resolution (∼0.″5) MIR spectra of the powerful radio galaxy, Cygnus A (Cyg A), obtained with the Subaru telescope. The overall shape of the spectra agree with previous high angular resolution MIR ...
    • Uncovering the deeply embedded active galactic nucleus activity in the nuclear regions of the interacting galaxy Arp 299 

      Alonso-Herrero, A.; Roche, P.F.; Esquej, P.; González-Martín, Omaira; Pereira-Santaella, Miguel; Ramos Almeida, Cristina; Levenson, Nancy A; Packham, Christopher C.; Asensio Ramos, Andrés; Perlman, Eric S (2013-11-26)
      We present mid-infrared (MIR) 8-13 μm spectroscopy of the nuclear regions of the interacting galaxy Arp 299 (IC 694+NGC 3690) obtained with CanariCam (CC) on the 10.4 m Gran Telescopio Canarias (GTC). The high angular ...