Zobrazeno 1 - 10
of 73
pro vyhledávání: '"R. D. Wolstencroft"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 282:252-262
Multi-colour imaging polarimetry of the galaxy NGC 5128 shows that polarization is present throughout the dust lane with patterns of orientation which are coherent on kpc scale-lengths. In the central regions of the dust lane, within ±O.7 kpc of the
Autor:
R. D. Wolstencroft, Peter W. Draper, Peter G. Wannier, David P. Stockdale, Gerald H. Moriarty-Schieven, B-G Andersson
Publikováno v:
Symposium - International Astronomical Union. 202:396-398
Multicolour imaging polarimetry of the main sequence star BD+31°643 shows that the Kalas & Jewitt (1997) disc extends to at least 13000AU. A disc of this radius must be dynamically very young compared to the central star, unlike the situation found
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 277:397-412
We report the results of an X-ray spectral imaging observation of the Antennae with the ROSAT PSPC. 55% of the soft X-ray flux from the system is resolved into discrete sources, including components identified with the galactic nuclei and large HII r
Autor:
T. M. Gledhill, Peter W. Draper, P. B. Alton, S. M. Scarrott, D. P. Stockdale, R. D. Wolstencroft
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 270:238-244
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 264:L7-L12
An optical polarization map for the starburst galaxy NGC 1808 is presented. On kiloparsec scales the polarization orientations follow the spiral arms, indicative of a magnetic field that is coherent on a galactic scale. The inner parts (
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 262:175-178
An optical polarization map of the GGD 30 nebulosity shows that, although it shares many of the morphological characteristics of classical cometary nebulae such as NGC 2261/R.Mon, it differs in that the star-like knot at its head is not the illlumina
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 257:485-492
Optical polarization maps of small nebulosities (Re5 and IRAS 08211-4158) associated with IRAS sources located in dark globules are presented and used to determine the positions of the illuminators. The IRAS 08211-4158 system is found to have two ill
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 252:50P-54P
Imaging polarimetry of the β Pic disc shows that it is reflection nebulosity solely illuminated by the central star. The level of polarization in both segments of the disc is 17 ± 3 per cent (R waveband) and is relatively constant in the distance r
Autor:
J. N. Heasley, A. Pedlar, S. K. Leggett, Roger G. Clowes, R. D. Wolstencroft, W. Gang, S. W. Unger, Ann Savage, John W. Menzies, Quentin A. Parker, H. T. MacGillivray
Publikováno v:
Comets to Cosmology ISBN: 9783540190523
Radio maps, spectra and CCD images have been obtained for almost all the 158 objects in a complete sample of IRAS galaxies. The linear relation between radio and far-infrared luminosity is valid over the complete luminosity range (up to LIR=1.8×1012
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7105d586d18e00346eefac1c0d889cd
https://doi.org/10.1007/bfb0118810
https://doi.org/10.1007/bfb0118810
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 242:419-422
Une carte de la polarisation optique du globule cometaire CG 30 montre qu'il s'agit d'une petite aire de nebuleuse reflechissante illuminee de l'interieur du globule sombre par une source excitatrice identifiee avec la source IRAS 08076-3356. La stru