Search Publications
Mid-infrared spectroscopy of infrared-luminous galaxies at z ~ 0.5-3
Pérez-Fournon, I.; Pozzi, F.; Valtchanov, I. +19 more
We present results on low-resolution mid-infrared (MIR) spectra of 70 IR-luminous galaxies obtained with the infrared spectrograph (IRS) onboard Spitzer. We selected sources from the European Large Area Infrared Survey with S15 > 0.8 mJy and photometric or spectroscopic z > 1. About half of the samples are quasi-stellar objects (Q…
Search for corannulene (C20H10) in the Red Rectangle
Gerin, M.; Giesen, T. F.; Joblin, C. +10 more
Polycyclic Aromatic Hydrocarbons (PAHs) are widely accepted as the carriers of the Aromatic Infrared Bands (AIBs), but an unambiguous identification of any specific interstellar PAH is still missing. For polar PAHs, pure rotational transitions can be used as spectral fingerprints for identification. Combining dedicated experiments, detailed simula…
A multiwavelength infrared study of NGC 891
Madden, S. C.; Galliano, F.; Bendo, G. J. +2 more
We present a multiwavlength infrared (IR) study of the nearby, edge-on, spiral galaxy NGC 891. We have examined 20 independent, spatially resolved IR images of this galaxy, 14 of which are newly reduced and/or previously unpublished images. These images span a wavelength regime from λ1.2µm in which the emission is dominated by cool stars, th…
The haloes of planetary nebulae in the mid-infrared: evidence for interaction with the interstellar medium
Ramos-Larios, G.; Phillips, J. P.
The motion of planetary nebulae through the interstellar medium (ISM) is thought to lead to a variety of observational consequences, including the formation of bright rims, deformation and fragmentation of the shells, and a shift of the central stars away from the geometric centres of the envelopes. These and other characteristics have been noted …
Photometric redshift accuracy in AKARI deep surveys
Im, M.; Lee, H. M.; Burgarella, D. +11 more
We investigate the photometric redshift accuracy achievable with the AKARI infrared data in deep multiband surveys, such as in the North Ecliptic Pole field. We demonstrate that the passage of redshifted polycyclic aromatic hydrocarbons (PAH) and silicate features into the mid-infrared wavelength window covered by AKARI is a valuable means to reco…
ISO observation of molecular hydrogen and fine-structure lines in the photodissociation region IC63
van Dishoeck, E. F.; Bell, T.; Viti, S. +2 more
We wish to constrain the main physical properties of the photodissociation region (PDR) IC63. We present the results of a survey for the lowest pure-rotational lines of H2 with the Short Wavelength Spectrometer and for the major fine-structure cooling lines of OI at 63 and 145µm and CII at 157.7µm with the Long Wavelength Sp…
The initial conditions of isolated star formation - IX. Akari mapping of an externally heated pre-stellar core
Ward-Thompson, D.; Nutter, D.; Stamatellos, D.
We present observations of L1155 and L1148 in the Cepheus molecular cloud, taken using the Far Infrared Surveyor (FIS) instrument on the Akari satellite. We compare these data to submillimetre data taken using the Submillimetre Common-User Bolometer Array (SCUBA) camera on the James Clerk Maxwell Telescope, and far-infrared data taken with the ima…