Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Butters O"'
Autor:
Potter, Stephen B., Romero-Colmenero, Encarni, Kotze, Marissa, Zietsman, Ewald, Butters, O. W., Pekeur, Nikki, Buckley, David A. H.
We report on high time resolution, high signal/noise, photo-polarimetry of the intermediate polars NY Lup and IGRJ1509-6649. Our observations confirm the detection and colour dependence of circular polarization from NY Lup and additionally show a cle
Externí odkaz:
http://arxiv.org/abs/1111.5482
It has recently been proposed, on the basis of eclipse-timing data, that the eclipsing polar cataclysmic variable HU Aquarii is host to at least two giant planets. However, that result has been called into question based upon the dynamical stability
Externí odkaz:
http://arxiv.org/abs/1110.2542
Autor:
Smalley, B, Kurtz, D. W., Smith, A. M. S., Fossati, L., Anderson, D. R., Barros, S. C. C., Butters, O. W., Cameron, A. Collier, Christian, D. J., Enoch, B., Faedi, F., Haswell, C. A., Hellier, C., Holmes, S., Horne, K., Kane, S. R., Lister, T. A., Maxted, P. F. L., Norton, A. J., Parley, N., Pollacco, D., Simpson, E. K., Skillen, I., Southworth, J., Street, R. A., West, R. G., Wheatley, P. J., Wood, P. L.
We have studied over 1600 Am stars at a photometric precision of 1 mmag with SuperWASP photometric data. Contrary to previous belief, we find that around 200 Am stars are pulsating delta Sct and gamma Dor stars, with low amplitudes that have been mis
Externí odkaz:
http://arxiv.org/abs/1107.0246
Autor:
Enoch, B., Anderson, D. R., Barros, S. C. C., Brown, D. J. A., Cameron, A. Collier, Faedi, F., Gillon, M., Hébrard, G., Lister, T. A., Queloz, D., Santerne, A., Smalley, B., Street, R. A., Triaud, A. H. M. J., West, R. G., Bouchy, F., Bento, J., Butters, O., Fossati, L., Haswell, C. A., Hellier, C., Holmes, S., Jehen, E., Lendl, M., Maxted, P. F. L., McCormac, J., Miller, G. R. M., Moulds, V., Moutou, C., Norton, A. J., Parley, N., Pepe, F., Pollacco, D., Segransan, D., Simpson, E., Skillen, I., Smith, A. M. S., Udry, S., Wheatley, P. J.
We report the detection of WASP-35b, a planet transiting a metal-poor ([Fe/H] = -0.15) star in the Southern hemisphere, WASP-48b, an inflated planet which may have spun-up its slightly evolved host star of 1.75 R_sun in the Northern hemisphere, and t
Externí odkaz:
http://arxiv.org/abs/1104.2827
Autor:
Faedi, F., Barros, S. C. C., Anderson, D. R., Brown, D. J. A., Cameron, A. Collier, Pollacco, D., Boisse, I., Hebrard, G., Lendl, M., Lister, T. A., Smalley, B., Street, R. A., Triaud, A. H. M. J., Bento, J., Butters, O. W., Enoch, B., Bouchy, F., Haswell, C. A., Hellier, C., Keenan, F. P., Miller, G. R. M., Moulds, V., Moutou, C., Norton, A. J., Queloz, D., Santerne, A., Simpson, E. K., Skillen, I., Smith, A. M. S., Udry, S., Watson, C. A., West, R. G., Wheatley, P. J.
We present the discovery of WASP-39b, a highly inflated transiting Saturn-mass planet orbiting a late G-type dwarf star with a period of $4.055259 \pm 0.000008$\,d, Transit Epoch T$_{0}=2455342.9688\pm0.0002$\,(HJD), of duration $0.1168 \pm 0.0008$\,
Externí odkaz:
http://arxiv.org/abs/1102.1375
Autor:
Norton, A. J., Payne, S. G., Evans, T., West, R. G., Wheatley, P. J., Anderson, D. R., Barros, S. C. C., Butters, O. W., Cameron, A. Collier, Christian, D. J., Enoch, B., Faedi, F., Haswell, C. A., Hellier, C., Holmes, S., Horne, K. D., Lister, T. A., Maxted, P. F. L., Parley, N., Pollacco, D., Simpson, E. K., Skillen, I., Smalley, B., Southworth, J., Street, R. A.
We present light curves and periods of 53 candidates for short period eclipsing binary stars identified by SuperWASP. These include 48 newly identified objects with periods <2x10^4 seconds (~0.23d), as well as the shortest period binary known with ma
Externí odkaz:
http://arxiv.org/abs/1101.1223
Aims. To determine the credentials of nine candidate intermediate polars in order to confirm whether or not they are magnetic cataclysmic variables. Methods. Frequency analysis of RXTE and XMM data was used to search for temporal variations which cou
Externí odkaz:
http://arxiv.org/abs/1011.5762
Autor:
Barros, S. C. C., Faedi, F., Cameron, A. Collier, Lister, T. A., McCormac, J., Pollacco, D., Simpson, E. K., Smalley, B., Street, R. A., Todd, I., Triaud, A. H. M. J., Boisse, I., Bouchy, F., Hebrard, G., Moutou, C., Pepe, F., Queloz, D., Santerne, A., Segransan, D., Udry, S., Bento, J., Butters, O. W., Enoch, B., Haswell, C. A., Hellier, C., Keenan, F. P., Miller, G. R. M., Moulds, V., Norton, A. J., Parley, N., Skillen, I., Watson, C. A., West, R. G., Wheatley, P. J.
We report the discovery of WASP-38b, a long period transiting planet in an eccentric 6.871815 day orbit. The transit epoch is 2455335.92050 +/- 0.00074 (HJD) and the transit duration is 4.663 hours. WASP-38b's discovery was enabled due to an upgrade
Externí odkaz:
http://arxiv.org/abs/1010.0849
Autor:
Butters, O. W., West, R. G., Anderson, D. R., Cameron, A. Collier, Clarkson, W. I., Enoch, B., Haswell, C. A., Hellier, C., Horne, K., Joshi, Y., Kane, S. R., Lister, T. A., Maxted, P. F. L., Parley, N., Pollacco, D., Smalley, B., Street, R. A., Todd, I., Wheatley, P. J., Wilson, D. M.
The WASP (Wide Angle Search for Planets) project is an exoplanet transit survey that has been automatically taking wide field images since 2004. Two instruments, one in La Palma and the other in South Africa, continually monitor the night sky, buildi
Externí odkaz:
http://arxiv.org/abs/1009.5306
Autor:
Simpson, E. K., Barros, S. C. C., Brown, D. J. A., Cameron, A. Collier, Pollacco, D., Skillen, I., Stempels, H. C., Boisse, I., Faedi, F., Hebrard, G., McCormac, J., Sorensen, P., Street, R. A., Bento, J., Bouchy, F., Butters, O. W., Enoch, B., Haswell, C. A., Hebb, L., Holmes, S., Horne, K., Keenan, F. P., Lister, T. A., Miller, G. R. M., Moulds, V., Moutou, C., Norton, A. J., Parley, N., Santerne, A., Todd, I., Watson, C. A., West, R. G., Wheatley, P. J.
We present SuperWASP observations of HAT-P-14b, a hot Jupiter discovered by Torres et al. The planet was found independently by the SuperWASP team and named WASP-27b after follow-up observations had secured the discovery, but prior to the publication
Externí odkaz:
http://arxiv.org/abs/1009.3470