Publication
Circumnuclear emission line regions in Cygnus A
We have used the Nordic Optical and the William Herschel Telescopes to obtain images and long-slit spectra of Cygnus A under conditions of sub-arcsecond seeing...
-
-
PublicationCircumnuclear kinematics in NGC 5248: the origin of nuclear spiral armsWe present for the first time a two-dimensional velocity field of the central region of the grand-design spiral galaxy NGC 5248, at 0.9-arcsec spatial...
-
PublicationCircumnuclear regions in barred spiral galaxies - I. Near-infrared imagingWe present subarcsecond-resolution, ground-based, near-infrared images of the central regions of a sample of 12 barred galaxies with circumnuclear star...
-
PublicationCircumnuclear regions in barred spiral galaxies - II. Relations to host galaxiesWe present optical broad- and narrow-band imaging of a sample of a dozen barred galaxies. These images are analysed in conjunction with our previously published...
-
PublicationCircumnuclear Star Formation and AGN Activity: Clues from Surface Brightness Radial Profile of PAHs and [{\rm{S}}\,{\rm{IV}}]We studied the circumnuclear mid-IR emission in a sample of 19 local active galactic nuclei (AGNs) with high spatial resolution spectra using T-ReCS (Gemini)...
-
PublicationCircumstellar disc geometry constrained by infrared line fluxesLenorzer et al. introduce ratios of hydrogen infrared recombination lines as a diagnostic tool to constrain the spatial distribution and physical condition of...
-
PublicationCircumstellar effects on the Rb abundances in O-rich AGB starsFor the first time we explore the circumstellar effects on the Rb (and Zr) abundance determination in O-rich asymptotic giant branch (AGB) stars by considering...
-
PublicationCircumstellar Material around the Proto-PNe IRAS 10178--5958 and IRAS 11065--6026Spectroscopy of Hen 401 (IRAS 10178-5958) and WRA 751 (IRAS 11065-6026) reveal strong HI, HeI, FeII and forbidden emission lines. Images of Hen 401 reveal the...
-
PublicationCircumstellar Material in Type Ia Supernovae via Sodium Absorption FeaturesType Ia supernovae are key tools for measuring distances on a cosmic scale. They are generally thought to be the thermonuclear explosion of an accreting white...