58 research outputs found
Erratum: “A Measurement of the Cosmic Microwave Background B-Mode Polarization Power Spectrum at Sub-degree Scales with POLARBEAR” (2014, ApJ, 794, 171)
No full textThis is a correction for 2014 ApJ 794 17
A Measurement Of The Cosmic Microwave Background B-mode Polarization Power Spectrum At Sub-degree Scales With POLARBEAR
No full textSearch for the Sunyaev-Zeldovich effect in the coma cluster with the MITO experiment
No full textWe report the strategy for observing the Sunyaev-Zeldovich effect towards the Coma cluster of galaxies with the MITO telescope. The instrument has a 17 arcminutes FWHM field of View and uses a 3-field square wave mechanical modulation with a beamthrow of 41 arcminutes. The channels centered at 2.1, 1.4, 1.1 and 0.85 mm allow for matching the Sunyaev-Zeldovich effect spectral range and monitoring atmospheric fluctuations for spectral decorrelation. in this paper we describe both the analysis procedure and the preliminary results of our observations. We also make a first comparison with the available X-ray data
A far infrared polarimeter
No full textWe describe an experiment to measure calibration sources, the polarization of Cosmic Microwave Background Radiation (CMBR) and the polarization induced on the CMBR from S-Z effects, using a polarimeter, MITOPol, that will be employed at the MITO telescope. Two modulation methods are presented and compared: an amplitude modulation with a Fresnel double rhomb and a phase modulation with a modified Martin-Puplett interferometer. A first light is presented from the campaign (summer 2003) that has permitted to estimate the instrument spurious polarization using the second modulation method. (C) 2004 Elsevier B.V. All rights reserved
MITO measurements of the Sunyaev-Zeldovich effect in the Coma Cluster of galaxies
No full textWe have measured the Sunyaev-Zeldovich (SZ) effect toward the Coma Cluster (A1656) with the Millimetre and Infrared Testagrigia Observatory experiment, a 2.6 m telescope equipped with a four-channel 17' (FWHM) photometer. Measurements at frequency bands 143+/-15, 214+/-15, 272+/-16, and 353+/-13 GHz were made during 120 drift scans of Coma. We describe the observations and data analysis that involved extraction of the SZ signal by employing a spatial and spectral decorrelation scheme to remove a dominant atmospheric component. The deduced values of the thermal SZ effect in the first three bands are DeltaT(0) = -179+/-38, -33+/-81, and 170+/-35 muK in the cluster center. The corresponding optical depth, tau = (4.1+/- 0.9) x 10(-3), is consistent (within errors) with both the value from a previous low-frequency SZ measurement and the value predicted from the X-ray-deduced gas parameters
Prophylactic Dosing of Anti Inhibitor Coagulant Complex (FEIBA) Reduces Bleeding Frequency In Hemophilia A Patients with Inhibitors Results of the Pro FEIBA Study
No full text52nd Annual Meeting of the American-Society-of-Hematology (ASH) -- DEC 04-07, 2010 -- Orlando, FLAmer Soc Hemato
A ground-based experiment for CMBR anisotropy observations: MITO
No full textGround-based observations at millimeter wavelengths are still competitive with space observatories if inevitable foreground contamination is considered at all stages of data acquisition and analysis. Technical solutions together with carefully chosen cosmological targets and observational strategies are the key points in the development of the MITO experiment. © 1999 Elsevier Science B.V. All rights reserved
The Semantics of the Gaze: Fazio’s Mistress in Fazio Degli Uberti’s and Dante Gabriel Rossetti’s Representations
No full textThe intention of this paper is to discuss the act of (not) looking with respect to the fourteenth-century Italian poem His Portrait of His Lady, Angiola of Verona written by Fazio Degli Uberti, and Dante Gabriel Rossetti’s painting Fazio’s Mistress (Aurelia). The works chosen for this analysis seem to represent social conventions and expectations related to gender and sexuality. Both in the case of the painting and the poem, the gaze is a medium
of becoming a “surveyor” and “surveyed”, a means of typecasting, but also a reservoir of changing meanings. In the following discussion, the author approaches Uberti’s and Rossetti’s works in attempt to see how (and if) they renounce traditional views on domination and submission
Far infrared polarimeter with very low instrumental polarization
No full textAfter a short analysis of the main problems involved in the construction of a Far Infrared polarimeter with
very low instrumental noise, we describe the instrument that will be employed at MITO telescope to search for
calibration sources and investigate polarization near the CMB anisotropy peaks in the next campaign (Winter
2002-03)
The Cryogenic AntiCoincidence Detector for the ATHENA X-IFU: Design Aspects by Geant4 Simulation and Preliminary Characterization of the New Single Pixel
No full textThe ATHENA observatory is the second large-class ESA mission, in the context of the Cosmic Vision 2015-2025, scheduled to be launched on 2028 at L2 orbit. One of the two planned focal plane instruments is the X-ray Integral Field Unit (X-IFU), which will be able to perform simultaneous high-grade energy spectroscopy and imaging over the 5 arcmin FoV by means of a kilo-pixel array of transition-edge sensor (TES) microcalorimeters, coupled to a high-quality X-ray optics. The X-IFU sensitivity is degraded by the particle background, induced by primary protons of both solar and cosmic rays' origin and secondary electrons. A Cryogenic AntiCoincidence (CryoAC) TES-based detector, located 2 area, made of 65 Ir TESs
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