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We present a study of the nearby Seyfert galaxy NGC 1068 using mid- and far- infrared data acquired with the IRAC, IRS, and MIPS instruments aboard the Spitzer Space Telescope. The images show extensive 8 um and 24 um emission coinciding…

NGC 1068 is a nearby Active Galactic Nucleus (AGN) of type 2, meaning that its accretion disk is hidden behind a large amount of foreground extinction. Observations at several wavelengths have revealed various disk-like structures around…

Astrophysics of Galaxies · Physics 2022-04-08 Pierre Vermot

The Seyfert galaxy NGC 1097 has an extended neutral hydrogen disk, a companion, a prominent bar and a luminous circumnuclear starburst "ring". Magnetic fields as revealed by nonthermal radio-continuum emissions correlate well with the…

Astrophysics · Physics 2009-11-06 Yu-Qing Lou , ZuHui Fan , Chi Yuan , Stephane Leon

We present ISO-SWS spectroscopy of NGC 1068 for the wavelength range 2.4 to 45um, detecting a total of 36 emission lines. Most of the observed transitions are fine structure and recombination lines originating in the narrow line region. We…

Astrophysics · Physics 2009-10-31 D. Lutz , E. Sturm , R. Genzel , A. F. M. Moorwood , T. Alexander , H. Netzer , A. Sternberg

We present spatially-resolved, near-diffraction-limited 10 micron spectra of the nucleus of the Seyfert 2 galaxy NGC 1068, obtained with Michelle, the mid-IR imager and spectrometer on the 8.1 m Gemini North telescope. The spectra cover the…

Astrophysics · Physics 2009-11-13 R. E. Mason , T. R. Geballe , C. Packham , N. A. Levenson , M. Elitzur , R. S. Fisher , E. Perlman

We present Hubble Space Telescope far-UV spectra of 4 QSOs whose sightlines pass through the halo of NGC 1097 at impact parameters of 48 -165 kpc. NGC 1097 is a nearby spiral galaxy that has undergone at least two minor merger events, but…

Astrophysics of Galaxies · Physics 2016-07-27 D. V. Bowen , D. Chelouche , E. B. Jenkins , T. M. Tripp , M. Pettini , D. G. York , B. L. Frye

We have used the Very Long Baseline Array at 5 GHz to image the nucleus of NGC 1068 at two epochs separated by 2.92 yr. No relative motion was detected between the high brightness-temperature knots within components NE and C relative to the…

Astrophysics · Physics 2007-05-23 A. L. Roy , A. S. Wilson , J. S. Ulvestad , E. J. M. Colbert

We have obtained mid-infrared images of the nucleus of NGC 1068 from the Hale 5 m telescope at Mt. Palomar with diffraction-limited resolution and high sensitivity at 8.8, 10.3, and 12.5 microns. Deconvolved images show that the infrared…

Astrophysics · Physics 2009-10-30 J. J. Bock , K. A. Marsh , M. E. Ressler , M. W. Werner

Spectra of the archetypal Type II Seyfert galaxy NGC 1068 in a narrow wavelength interval near 3.7 microns have revealed a weak absorption feature due to two lines of the molecular ion H3+. The observed wavelength of the feature corresponds…

Astrophysics of Galaxies · Physics 2015-10-14 T. R. Geballe , R. E. Mason , T. Oka

We use the full broad-band XMM-Newton EPIC data to examine the X-ray spectrum of the nearby Seyfert 2 galaxy NGC 1068, previously shown to be complex with the X-ray continuum being a sum of components reflected/scattered from cold (neutral)…

Astrophysics · Physics 2009-11-11 K. Pounds , S. Vaughan

We present observational results of water vapor maser emission with our high-sensitivity 22 GHz VLBI imaging of the Seyfert galaxy NGC 1068. In this galaxy, there are the following four nuclear radio sources; NE, C, S1, and S2. Among them,…

Astrophysics of Galaxies · Physics 2022-12-14 Yuna Morishima , Hiroshi Sudou , Aya Yamauchi , Yoshiaki Taniguchi , Naomasa Nakai

An-energy dependent variation of the X-ray emission from the archetypical "Compton-thick'' Seyfert 2 galaxy NGC1068 has been observed between two BeppoSAX observations, performed one year apart. This variation (at the 2.6 sigma level) is…

Astrophysics · Physics 2009-10-31 M. Guainazzi , S. Molendi , P. Vignati , G. Matt , K. Iwasawa

High resolution observations with the NIR adaptive optics integral field spectrograph SINFONI at the VLT proved the existence of massive and young nuclear star clusters in the centres of a sample of Seyfert galaxies. With the help of…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 M. Schartmann , A. Burkert , M. Krause , M. Camenzind , K. Meisenheimer , R. I. Davies

Sensitive observations with ALMA allow astronomers to observe the detailed distributions of molecules with relatively weak intensity in nearby galaxies. In particular, we report distributions of several molecular transitions including shock…

Recently, high resolution observations with the help of the near-infrared adaptive optics integral field spectrograph SINFONI at the VLT proved the existence of massive and young nuclear star clusters in the centres of a sample of Seyfert…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 M. Schartmann , A. Burkert , M. Krause , M. Camenzind , K. Meisenheimer , R. I. Davies

We present spatially resolved Chandra HETGS observations of the Seyfert 2 galaxy NGC 1068. X-ray imaging and high resolution spectroscopy are used to test the Seyfert unification theory. Fe K-alpha emission is concentrated in the nuclear…

Astrophysics · Physics 2009-11-07 P. M. Ogle , T. Brookings , C. R. Canizares , J. C. Lee , H. L. Marshall

We present results from Atacama Large Millimeter/submillimeter Array (ALMA) observations of CS from the nearby galaxy NGC 1068 ($\sim14$ Mpc). This Seyfert 2 barred galaxy possesses a circumnuclear disc (CND, $r\sim200$ pc) and a starburst…

We have studied the feedback influence that the central engine of the Seyfert 2 galaxy NGC 1068 may have on the chemistry of the 200 pc circumnuclear gas disk (CND). With this purpose, we have conducted a multi-species/multi-transition…

Astrophysics · Physics 2007-05-23 A. Usero , S. Garcia-Burillo , A. Fuente , J. Martin-Pintado

We investigate the possibility that the high-energy neutrino flux observed from the Seyfert galaxy NGC 1068 originates from dark matter annihilations within the density spike surrounding the supermassive black hole at its center. The…

High Energy Physics - Phenomenology · Physics 2025-07-23 Kensuke Akita , Alejandro Ibarra , Robert Zimmermann