Degree Scale Anisotropy: Current Status
نویسندگان
چکیده
منابع مشابه
Degree Scale Anisotropy
1. ABSTRACT The Cosmic Background Radiation gives us one of the few probes into the density perturbations in the early universe that should later lead to the formation of structure we now observe. Recent advances in degree scale anisotropy measurements have allowed us to begin critically testing cosmo-logical models. Combined with the larger scale measurements from COBE we are now able to direc...
متن کاملDegree Scale Anisotropy: Sp94 Results
We present results from two observations of the cosmic microwave background (CMB) performed from the South Pole during the 1993-1994 austral summer. Each observation employed a 3◦ peak to peak sinusoidal, single difference chop and consisted of a 20◦ × 1◦ strip on the sky near our SP91 observations. The first observation used a receiver which operates in 3 bands between 38 and 45 GHz (Q-band) w...
متن کاملGaussianity of Degree-Scale Cosmic Microwave Background Anisotropy Observations
We present results from a first test of the Gaussianity of degree-scale cosmic microwave background (CMB) anisotropy. We investigate Gaussianity of the CMB anisotropy by studying the topology of CMB anisotropy maps from the QMAP and Saskatoon experiments. We also study the QMASK map, a combination map of the QMAP and Saskatoon data. We measure the genus from noise-suppressed Wienerfiltered maps...
متن کاملDetection of Degree-scale Anisotropy: a Summary of Acme Anisotropy Results
From 1988 to 1994, the Advanced Cosmic Microwave Explorer (ACME) ew six times on balloons and observed three times from the South Pole. Observing degree-scale anisotropy in the Cosmic Background Radiation over an angular scale from 20 to 120 arc minutes and over a wavelength range from 1 to 12 mm, the ACME experiments have made signi cant contributions to our understanding of the CBR including ...
متن کاملMeasuring the Anisotropy in the Cmb: Current Status & Future Prospects
The CMB is perhaps the cleanest cosmological observable. Given a cosmology model, the angular spectrum of the CMB can be computed to percent accuracy. On the observational side, as far as we know, there is little that stands in the way between an accurate measurement and a rigorous confrontation with theory. In this article, we review the state of the data and indicate future directions. The da...
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: Symposium - International Astronomical Union
سال: 1996
ISSN: 0074-1809
DOI: 10.1017/s0074180900110010