Search Publications
Black hole spin and size of the X-ray-emitting region(s) in the Seyfert 1.5 galaxy ESO 362-G18
Bianchi, S.; Fabian, A. C.; Miniutti, G. +7 more
We report results from multi-epoch X-ray observations of the Seyfert 1.5 galaxy ESO 362-G18 performed between 2005 November and 2010 June. ESO 362-G18 generally exhibits the typical X-ray spectrum of type 1 active galactic nuclei. A disc-reflection component accounts for broad residuals in the iron K band and above 10 keV, as well as for a signifi…
GRASIL-3D: an implementation of dust effects in the SEDs of simulated galaxies
Granato, G. L.; Silva, L.; Domínguez-Tenreiro, R. +5 more
We introduce a new model for the spectral energy distribution of galaxies, GRASIL-3D, which includes a careful modelling of the dust component of the interstellar medium. GRASIL-3D is an entirely new model based on the formalism of an existing and widely applied spectrophotometric model, GRASIL, but specifically designed to be interfaced with gala…
A compact, metal-rich, kpc-scale outflow in FBQS J0209-0438: detailed diagnostics from HST/COS extreme UV observations
Done, Chris; Hamann, Fred; Tejos, Nicolas +6 more
We present HST/COS observations of highly ionized absorption lines associated with a radio-loud quasar (QSO) at z = 1.1319. The absorption system has multiple velocity components, with an overall width of ≈600 km s-1, tracing gas that is largely outflowing from the QSO at velocities of a few 100 km s-1. There is an unpreceden…
Feeding versus feedback in AGN from near-infrared IFU observations: the case of Mrk 766
Storchi-Bergmann, Thaisa; Riffel, Rogemar A.; Winge, Claudia +1 more
We have mapped the emission-line flux distributions and ratios as well as the gaseous kinematics of the inner 450 pc radius of the type 1 Seyfert galaxy Mrk 766 using integral field near-infrared J- and Kl-band spectra obtained with the Gemini Near Infrared Integral Field Spectrograph at a spatial resolution of 60 pc and velocity resolu…
Herschel-ATLAS/GAMA: SDSS cross-correlation induced by weak lensing
Danese, L.; González-Nuevo, J.; Scott, D. +25 more
We report a highly significant (>10σ) spatial correlation between galaxies with S350 µm ≥ 30 mJy detected in the equatorial fields of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) with estimated redshifts ≳ 1.5, and Sloan Digital Sky Survey (SDSS) or Galaxy And Mass Assembly (GAMA) galaxies at 0.2 ≤ z ≤ 0.6. …
The supergiant shell with triggered star formation in the dwarf irregular galaxy IC 2574: neutral and ionized gas kinematics
Moiseev, A. V.; Lozinskaya, T. A.; Egorov, O. V. +1 more
We analyse the ionized gas kinematics in the star formation regions of the supergiant shell (SGS) of the IC 2574 galaxy using observations made with the Fabry-Perot interferometer at the 6-m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences; the data of the H I Nearby Galaxy Survey (THINGS) are used to analyse t…
The Revised IRAS-FSC Redshift Catalogue (RIFSCz)
Han, Jiaxin; Wang, Lingyu; Norberg, Peder +2 more
We present a Revised IRAS-FSC Redshift Catalogue (RIFSCz) of 60 303 galaxies selected at 60 µm from the IRAS Faint Source Catalog (FSC). This revision merges in data from the Wide-field Infrared Survey Explorer All-Sky Data Release, the tenth Sloan Digital Sky Survey Data Release (DR10), the GALEX All-Sky Survey Source Catalog (GASC), the 2M…
Herschel reveals a molecular outflow in a z = 2.3 ULIRG
Valtchanov, I.; Ivison, R. J.; Smail, Ian +6 more
We report the results from a 19-h integration with the Spectral and Photometric Imaging REceiver (SPIRE) Fourier Transform Spectrometer aboard the Herschel Space Observatory which has revealed the presence of a molecular outflow from the Cosmic Eyelash (SMM J2135-0102) via the detection of blueshifted OH absorption. Detections of several fine-stru…
Characterizing the quiescent X-ray variability of the black hole low-mass X-ray binary V404 Cyg
Bernardini, F.; Cackett, E. M.
We conducted the first long-term (75 d) X-ray monitoring of the black hole low-mass X-ray binary V404 Cyg, with the goal of understanding and characterizing its variability during quiescence. The X-ray light curve of V404 Cyg shows several flares on time-scales of hours with a count rate change of a factor of about 5-8. The root-mean-square variab…
Multiwavelength observations of the γ-ray-emitting narrow-line Seyfert 1 PMN J0948+0022 in 2011
Drake, A. J.; Larsson, J.; Giroletti, M. +13 more
We report on radio-to-γ-ray observations during 2011 May-September of PMN J0948+0022, the first narrow-line Seyfert 1 (NLSy1) galaxy detected in γ-rays by Fermi-Large Area Telescope. Strong variability was observed in γ-rays, with two flaring periods peaking on 2011 June 20 and July 28. The variability observed in optical and near-infrared seems t…