The nature of 500 micron risers I: SMA observations
We present SMA observations at resolutions from 0.35 to 3 arcsec of a sample of 34 candidate high redshift dusty star forming galaxies (DSFGs). These sources...
The Nature of 500 micron Risers III: a small complete sample
Herschel surveys have found large numbers of sources with red far-IR colours, and spectral energy distributions (SEDs) rising from 250 to 500 µm: 500 risers...
The nature of arms in spiral galaxies. II. The sample
We present here the results of an imaging study of eight grand-design and two intermediate-arm galaxies, based on CCD observations in U, B, V, R and I. We give...
The nature of arms in spiral galaxies. I - Azimuthal colour profiles of NGC 7479 and NGC 1832
A set of parameters to characterize azimuthal profiles of galaxies is proposed and applied to the spiral structure of the galaxies NGC 1832 and NGC 7479...
The nature of arms in spiral galaxies. III. Azimuthal profiles
In this paper we analyse the structure of a small sample of galaxies using a set of CCD images in standard photometric bands presented in a previous paper (del...
The nature of arms in spiral galaxies. IV. Symmetries and asymmetries
A Fourier analysis of the intensity distribution in the planes of nine spiral galaxies is performed. In terms of the arm classification scheme of cite[Elmegreen...
The Nature of Close Companions of the BL Lacertae Objects 1ES 0502+675 and 1ES 1440+122
We report on deep radio images and optical spectroscopy of two BL Lac objects that have very close compact companions. The two targets, 1ES 0502+675 and 1ES...
The nature of comet-asteroid transition object (3200) Phaethon
Context: The study of asteroids that present sporadic cometary activity is of fundamental importance to address several astronomical problems including the end...
The Nature of Dust in Compact Galactic Planetary Nebulae from Spitzer Spectra
We present the Spitzer/Infrared Spectrograph (IRS) spectra of 157 compact Galactic planetary nebulae (PNe). These young PNe provide insight on the effects of...