Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Cartwright, J. K."'
Autor:
Cartwright, J. K., Pearson, T. J., Readhead, A. C. S., Shepherd, M. C., Sievers, J. L., Taylor, G. B.
Publikováno v:
Astrophys.J. 623 (2005) 11-16
We report upper limits on the polarization of the CMBR as measured with the Cosmic Background Imager, a 13 element interferometer that operates in the 26-36 GHz band and is sited on Llano de Chajnantor in northern Chile. The array consists of 90-cm C
Externí odkaz:
http://arxiv.org/abs/astro-ph/0502174
Autor:
Readhead, A. C. S., Myers, S. T., Pearson, T. J., Sievers, J. L., Mason, B. S., Contaldi, C. R., Bond, J. R., Bustos, R., Altamirano, P., Achermann, C., Bronfman, L., Carlstrom, J. E., Cartwright, J. K., Casassus, S., Dickinson, C., Holzapfel, W. L., Kovac, J. M., Leitch, E. M., May, J., Padin, S., Pogosyan, D., Pospieszalski, M., Pryke, C., Reeves, R., Shepherd, M. C., Torres, S.
Publikováno v:
Science, v306, pp 836-844 (published online October 7, 2004)
Polarization observations of the cosmic microwave background with the Cosmic Background Imager from September 2002 to May 2004 provide a significant detection of the E-mode polarization and reveal an angular power spectrum of polarized emission showi
Externí odkaz:
http://arxiv.org/abs/astro-ph/0409569
Autor:
Readhead, A. C. S., Mason, B. S., Contaldi, C. R., Pearson, T. J., Bond, J. R., Myers, S. T., Padin, S., Sievers, J. L., Cartwright, J. K., Shepherd, M. C., Pogosyan, D., Prunet, S., Altamirano, P., Bustos, R., Bronfman, L., Casassus, S., Holzapfel, W. L., May, J., Pen, U. -L., Torres, S., Udomprasert, P. S.
Publikováno v:
Astrophys.J. 609 (2004) 498-512
Two years of microwave background observations with the Cosmic Background Imager (CBI) have been combined to give a sensitive, high resolution angular power spectrum over the range 400 < l < 3500. This power spectrum has been referenced to a more acc
Externí odkaz:
http://arxiv.org/abs/astro-ph/0402359
Autor:
Sievers, J. L., Bond, J. R., Cartwright, J. K., Contaldi, C. R., Mason, B. S., Myers, S. T., Padin, S., Pearson, T. J., Pen, U. -L., Pogosyan, D., Prunet, S., Readhead, A. C. S., Shepherd, M. C., Udomprasert, P. S., Bronfman, L., Holzapfel, W. L., May, J.
Publikováno v:
Astrophys.J.591:599-622,2003
We report on the cosmological parameters derived from observations with the Cosmic Background Imager (CBI), covering 40 square degrees and the multipole range 300 < l < 3500. The angular scales probed by the CBI correspond to structures which cover t
Externí odkaz:
http://arxiv.org/abs/astro-ph/0205387
Autor:
Mason, B. S., Pearson, T. J., Readhead, A. C. S., Shepherd, M. C., Sievers, J. L., Udomprasert, P. S., Cartwright, J. K., Farmer, A. J., Padin, S., Myers, S. T., Bond, J. R., Contaldi, C. R., Pen, U. -L., Prunet, S., Pogosyan, D., Carlstrom, J. E., Kovac, J., Leitch, E. M., Pryke, C., Halverson, N. W., Holzapfel, W. L., Altamirano, P., Bronfman, L., Casassus, S., May, J., Joy, M.
Publikováno v:
Astrophys.J. 591 (2003) 540-555
We report measurements of anisotropy in the cosmic microwave background radiation over the multipole range l ~ 200 - 3500 with the Cosmic Background Imager based on deep observations of three fields. These results confirm the drop in power with incre
Externí odkaz:
http://arxiv.org/abs/astro-ph/0205384
Autor:
Pearson, T. J., Mason, B. S., Readhead, A. C. S., Shepherd, M. C., Sievers, J. L., Udomprasert, P. S., Cartwright, J. K., Farmer, A. J., Padin, S., Myers, S. T., Bond, J. R., Contaldi, C. R., Pen, U. -L., Prunet, S., Pogosyan, D., Carlstrom, J. E., Kovac, J., Leitch, E. M., Pryke, C., Halverson, N. W., Holzapfel, W. L., Altamirano, P., Bronfman, L., Casassus, S., May, J., Joy, M.
Publikováno v:
Astrophys.J.591:556-574,2003
Using the Cosmic Background Imager, a 13-element interferometer array operating in the 26-36 GHz frequency band, we have observed 40 sq deg of sky in three pairs of fields, each ~ 145 x 165 arcmin, using overlapping pointings (mosaicing). We present
Externí odkaz:
http://arxiv.org/abs/astro-ph/0205388
Autor:
Padin, S., Shepherd, M. C., Cartwright, J. K., Keeney, R. G., Mason, B. S., Pearson, T. J., Readhead, A. C. S., Schaal, W. L., Sievers, J., Udomprasert, P. S., Yamasaki, J. K., Holzapfel, W. L., Carlstrom, J. E., Joy, M., Myers, S. T., Otarola, A.
Publikováno v:
PASP, 114, 83-97, 2002 January
Design and performance details are given for the Cosmic Background Imager (CBI), an interferometer array that is measuring the power spectrum of fluctuations in the cosmic microwave background radiation (CMBR) for multipoles in the range 400 < l < 35
Externí odkaz:
http://arxiv.org/abs/astro-ph/0110124
Autor:
Leitch, E. M., Pryke, C., Halverson, N. W., Kovac, J., Davidson, G., LaRoque, S., Schartman, E., Yamasaki, J., Carlstrom, J. E., Holzapfel, W. L., Dragovan, M., Cartwright, J. K., Mason, B. S., Padin, S., Pearson, T. J., Shepherd, M. C., Readhead, A. C. S.
Publikováno v:
Astrophys.J. 568 (2002) 28-37
We describe the instrumentation, experiment design and data reduction for the first season of observations with the Degree Angular Scale Interferometer (DASI), a compact microwave interferometer designed to measure anisotropy in the Cosmic Microwave
Externí odkaz:
http://arxiv.org/abs/astro-ph/0104488
Autor:
Halverson, N. W., Leitch, E. M., Pryke, C., Kovac, J., Carlstrom, J. E., Holzapfel, W. L., Dragovan, M., Cartwright, J. K., Mason, B. S., Padin, S., Pearson, T. J., Shepherd, M. C., Readhead, A. C. S.
Publikováno v:
Astrophys.J. 568 (2002) 38-45
We present measurements of anisotropy in the Cosmic Microwave Background (CMB) from the first season of observations with the Degree Angular Scale Interferometer (DASI). The instrument was deployed at the South Pole in the austral summer 1999--2000,
Externí odkaz:
http://arxiv.org/abs/astro-ph/0104489
Autor:
Mason, B. S., Cartwright, J. K., Padin, S., Pearson, T. J., Readhead, A. C. S., Shepherd, M., Sievers, J., Udomprasert, P.
The Cosmic Background Imager (CBI) is a 13-element interferometer designed to image intrinsic anisotropies in the cosmic microwave background (CMB) on arcminute scales. A review of the capabilities of the instrument is presented, together with a disc
Externí odkaz:
http://arxiv.org/abs/astro-ph/0101171