Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Burnell, S."'
Autor:
Burnell, S. I.
Studies as early as 1967 have indicated that induced drag of a finite aspect ratio wing can be reduced below that of the classical optimum: the elliptically loaded finite aspect ratio wing by the introduction of spanwise camber into the wing planform
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597122
We present the results of a kinematical study of the W50 nebula using high resolution radio observations from the Very Large Array (VLA) spanning a 12-year period, sampled in 1984, 1993 and 1996. We conduct a careful analysis of the proper motions of
Externí odkaz:
http://arxiv.org/abs/1103.5658
Autor:
Berger, E., Fox, D. B., Price, P. A., Nakar, E., Gal-Yam, A., Holz, D. E., Schmidt, B. P., Cucchiara, A., Cenko, S. B., Kulkarni, S. R., Soderberg, A. M., Frail, D. A., Penprase, B. E., Rau, A., Ofek, E., Burnell, S. J. Bell, Cameron, P. B., Cowie, L. L., Dopita, M. A., Hook, I., Peterson, B. A., Podsiadlowski, Ph., Roth, K. C., Rutledge, R. E., Sheppard, S. S., Songaila, A.
Publikováno v:
Astrophys.J.664:1000-1010,2007
The redshift distribution of the short-duration GRBs is a crucial, but currently fragmentary, clue to the nature of their progenitors. Here we present optical observations of nine short GRBs obtained with Gemini, Magellan, and the Hubble Space Telesc
Externí odkaz:
http://arxiv.org/abs/astro-ph/0611128
Autor:
Ogley, R. N., Burnell, S. J. Bell, Spencer, R. E., Newell, S. J., Stirling, A. M., Fender, R. P.
Publikováno v:
Mon.Not.Roy.Astron.Soc. 326 (2001) 349
We have observed a number of minor radio flares in Cyg X-3 using the MERLIN array. Photometric observations show the system to be highly active with multiple flares on hourly timescales over the one month observing programme. Analysis of the source's
Externí odkaz:
http://arxiv.org/abs/astro-ph/0104469
Publikováno v:
Mon.Not.Roy.Astron.Soc. 322 (2001) 177
We observed the energetic binary Cygnus X-3 in both quiescent and flaring states between 4 and 16 microns using the ISO satellite. We find that the quiescent source shows the thermal free-free spectrum typical of a hot, fast stellar wind, such as fro
Externí odkaz:
http://arxiv.org/abs/astro-ph/0010439
Publikováno v:
Mon.Not.Roy.Astron.Soc. 317 (2000) 158
We present the first detections of the black hole X-ray binary GRS 1915+105 at sub-millimetre wavelengths. We clearly detect the source at 350 GHz on two epochs, with significant variability over the 24 hr between epochs. Quasi-simultaneous radio mon
Externí odkaz:
http://arxiv.org/abs/astro-ph/0004123
Autor:
Ogley, R. N., Burnell, S. J. Bell, Fender, R. P., Pooley, G. G., Waltman, E. B., van der Klis, M.
Publikováno v:
New Astron.Rev. 42 (1998) 637-640
Multi-wavelength photometric observations of Cygnus X-3 were carried out at 18 cm through to 450 um, complemented by X-ray (2-10 keV) observations. The system was mildly active with cm fluxes at 150 -- 250 mJy. We find the spectrum to be flat with a
Externí odkaz:
http://arxiv.org/abs/astro-ph/9808019
We review the observational properties, from radio to X-rays, of the eight systems for which there is strong evidence for the formation of a radio jet in a X-ray binary system.
Comment: 14 pages, two postscript figures, LaTeX. To appear in Vista
Comment: 14 pages, two postscript figures, LaTeX. To appear in Vista
Externí odkaz:
http://arxiv.org/abs/astro-ph/9612160