Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21335708s&link_type=abstract
American Astronomical Society, AAS Meeting #213, #357.08; Bulletin of the American Astronomical Society, Vol. 41, p.500
Astronomy and Astrophysics
Astronomy
Scientific paper
We report on the status of EBEX, a NASA-funded balloon-borne polarimeter designed to measure the B-mode polarization of the cosmic microwave background radiation. The EBEX receiver is designed to set a 2σ upper limit on an inflationary tensor-to-scalar ratio of 0.02. This limit assumes a 14-day flight, a scan pattern covering 420 square degrees of the sky, and foreground subtraction to levels below detector noise. The instrument employs a 1.5 meter Gregorian-type telescope and 1440 bolometric transition edge sensor detectors distributed over two focal planes. Polarization is measured using a rotating achromatic half wave plate (AHWP) and a fixed polarizing grid. The AHWP is continuously rotated using a superconducting magnetic bearing. Sky signals will be observed in three bands centered at 150, 250 and 410 GHz, providing strong leverage against the polarized dust foreground. Integration of the gondola and the receiver will occur in fall 2008. A short-duration test flight employing 384 detectors in one focal plane is planned for 2009.
Aboobaker Asad M.
Ade Peter
Aubin Françcois
Baccigalupi Carlo
Borrill Julian
No associations
LandOfFree
The E and B EXperiment (EBEX); Progress and Status does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The E and B EXperiment (EBEX); Progress and Status, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The E and B EXperiment (EBEX); Progress and Status will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1700439