Search Publications
3C459: a highly asymmetric radio galaxy with a starburst
Muxlow, T. W. B.; Saikia, D. J.; Thomasson, P.
Multifrequency radio observations of the radio galaxy 3C459 using MERLIN, VLA and the EVN and an optical Hubble Space Telescope (HST) image using the F702W filter are presented. The galaxy has a very asymmetric radio structure, a high infrared luminosity and a young stellar population. The eastern component of the double-lobed structure is brighte…
An HST morphological survey of faint extremely red objects
Ivison, R. J.; Smail, Ian; Packham, C. +1 more
We present the results from a survey for extremely red objects (EROs) in deep, high-resolution optical images taken from the Hubble Space Telescope (HST) Medium Deep Survey. We have surveyed 35 deep F814W HST/WFPC2 fields in the near-infrared to a typical depth of K>~ 20. From a total area of 206 arcmin2 and to a limit of K= 20.0, we…
The temperature and distribution of gas in CL 0016+16 measured with XMM-Newton
Birkinshaw, M.; Worrall, D. M.
We present the results of a 37-ks observation of CL 0016+16 with the XMM-Newton EPIC instrument. Within 1.5 arcmin of the cluster centre we measured a gas temperature of kT= 9.13+0.24-0.22 keV and an abundance of 0.22+0.04-0.03 times the solar value (1σ uncertainties). This significant improvement over p…
An XMM-Newton observation of the galaxy group MKW 4
Read, A. M.; O'Sullivan, E.; Ponman, T. J. +2 more
We present an X-ray study of the galaxy group or poor cluster MKW 4. Working with XMM-Newton data we examine the distribution and properties of the hot gas which makes up the group halo. The inner halo shows some signs of structure, with circular or elliptical beta models providing a poor fit to the surface brightness profile. This may be evidence…
Chandra observations of the Mice
Read, Andrew M.
Presented here are high spatial and spectral resolution Chandra X-ray observations of the famous interacting galaxy pair, the Mice, a system similar to, though less evolved than, the well-known Antennae galaxies. Previously unpublished ROSAT High Resolution Imager data of the system are also presented.
Starburst-driven galactic winds outflowi…The complete submillimetre spectrum of NGC 891
Bernard, J. -P.; Dupac, X.; Giard, M. +8 more
Submillimetre maps of NGC 891 have been obtained with the Programme National d'Observations Submillimétriques (PRONAOS) balloon-borne telescope and with the Infrared Space Observatory Photopolarimeter (ISOPHOT) on board the ISO satellite. In this article, we also gather data from the Infrared Astronomical Satellite (IRAS) and the Submillimetre Com…
FUSE and HST ultraviolet observations of the disc wind of RW Sextantis
Knigge, C.; Prinja, R. K.; Long, K. S. +4 more
We present Far Ultraviolet Spectroscopic Explorer (FUSE) satellite time-series data of the low-inclination, nova-like cataclysmic variable RW Sex. The data span the wavelength range between ~905 and 1188Å, which contains the resonance lines of CIII, NIII, SIV, PV, SVI and OVI. All these spectral lines are present in the form of blueshifted absorpt…
XMM-Newton observations of the polars EV UMa, RX J1002-19 and RX J1007-20
Cropper, Mark; Ramsay, Gavin
We present XMM-Newton data of three strongly magnetic cataclysmic variables (polars) EV UMa, RX J1002-19 and RX J1007-20. These include the polar with the shortest orbital period (EV UMa) and the polar with one of the highest magnetic field strengths (RX J1007-20). They exhibit a range of X-ray spectral characteristics which are consistent with th…
XMM-Newton observation of the X-ray point source population of the starburst galaxy IC 342
Kong, Albert K. H.
We present the results of an XMM-Newton observation of the starburst galaxy IC 342. Thirty-seven X-ray point sources were detected down to a luminosity limit of ~1037 erg s-1. Most of the sources are located near the spiral arms. The X-ray point source luminosity function is consistent with a power-law shape with a slope of 0…
Observations of the neutral gas and dust in the radio galaxy 3C 305
Beswick, R.; Leahy, J. P.; Sparks, W. B. +5 more
We present MERLIN and Hubble Space Telescope (HST) observations of the central region of the nearby radio galaxy 3C 305 and use them to study the gas and dust in this object. The MERLIN observations are of neutral hydrogen (HI) absorption against the strong non-thermal 20 cm continuum seen towards the central 4 kpc of 3C 305. Our ~0.2 arcsec (160 …