Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.mrao.cam.ac.uk/secure/amiday/talks/mikepeel.pdf Дата изменения: Wed Oct 5 02:00:17 2011 Дата индексирования: Fri Feb 28 13:56:52 2014 Кодировка: Поисковые слова: http www.astronomy.ru forum index.php topic 4644.0.html

OCRA-AMI Synergies
(Torun Centre for Astronomy; Jodrell Bank Centre for Astrophysics; University of Bristol)

Mike Peel, on behalf of the OCRA collaboration

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Horns

FEM Hybrid

LNAs Phase switches

Hybrid

BEM

LNAs

BEM

Filters

Detectors Video amps

DAQ

Image credit: S. Lowe

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OCRA-p
Beams Frequency Tsys (on sky) Noise Resolution 2 27-33GHz 40 7 mJy s0.
5

OCRA-F
8 26-36GHz 50 7 mJy s0.
5

(3.2 arcmin beamthrow)

1.2 arcmin

Comparable resolution to AMI at twice the frequency
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arXiv:0909.1190

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arXiv:1007.5242 arXiv:0707.3368

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arXiv:0705.3336 arXiv:1106.3766

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arXiv:0902.3945

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Current observations
· · · ·
Following up WMAP and Planck sources Radio catalogue selected at 30-100GHz Monitoring strongest Fermi sources (part of FGAMMA) SZ observations of high-redshift clusters Observing variable sources as opportunities arise

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Conclusions
· · · ·
OCRA has similar resolution to AMI at twice the frequency Particularly suited to follow-up observations Measure spectra at wider range of frequencies Can also map out regions particularly useful for AME studies

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