An iterative destriping technique for diffuse background polarization data
نویسندگان
چکیده
منابع مشابه
An iterative destriping technique for diffuse background polarization data
~ Y ~ X ~ OFF ~ A~ B ~ N ~ C ~ Nobs ~ Wobs ~ Npix ~ WpixQRU An iterative destriping technique for diffuse background polarization data C. Sbarra1, E. Carretti1, S. Cortiglioni1, M. Zannoni2, R. Fabbri3, C. Macculi1 M. Tucci4 C. Sbarra, [email protected] IASF-CNR Bologna, via P. Gobetti 101, I-40129 Bologna, Italy Received 18 December 2002 / Accepted 13 February 2003 We describe a simple but...
متن کاملDestriping cosmic microwave background polarimeter data
Destriping is a well-established technique for removing low-frequency correlated noise from Cosmic Microwave Background (CMB) survey data. In this paper we present a destriping algorithm tailored to data from a polarimeter, i.e. an instrument where each channel independently measures the polarization of the input signal. We also describe a fully parallel implementation in Python released as Ope...
متن کاملCosmic microwave background power spectrum estimation with the destriping technique
Extraction of the CMB (Cosmic Microwave Background) angular power spectrum is a challenging task for current and future CMB experiments due to the large data sets involved. Here we describe an implementation of MASTER (Monte carlo Apodised Spherical Transform EstimatoR) described in Hivon et al. (2002) which exploits the destriping technique as a mapmaking method. In this method a noise estimat...
متن کاملDestriping Polarised data
Polarisation measurements on the Cosmological Microwave Background (CMB) will be very difficult as the expected polarisation is not expected to exceed 10% of the signal. Therefore, noises of all origins must be searched for and carefully extracted. Low frequency drifts are expected to arise from mechanic, thermal and electronic origin. If not suitably treated they induce stripes on sky maps suc...
متن کاملDestriping CMB temperature and polarization maps
We study destriping as a map-making method for temperature-and-polarization data for cosmic microwave background observations. We present a particular implementation of destriping and study the residual error in output maps, using simulated data corresponding to the 70 GHz channel of the Planck satellite, but assuming idealized detector and beam properties. The relevant residual map is the diff...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2003
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20030200