Constraints on Cosmological Parameters from MAXIMA-1
نویسندگان
چکیده
منابع مشابه
Constraints on Cosmological Parameters from Maxima-1
We set new constraints on a seven-dimensional space of cosmological parameters within the class of inflationary adiabatic models. We use the angular power spectrum of the cosmic microwave background measured over a wide range of ` in the first flight of the MAXIMA balloon-borne experiment (MAXIMA-1) and the low ` results from COBE/DMR. We find constraints on the total energy density of the univ...
متن کاملConstraints on cosmological parameters
A cosmological model with total density close to critical (and flat geometry), dominated by dark matter and dark energy of unknown nature, and consistent with the basic predictions of the inflationary scenario is a very good fit to a variety of cosmological probes: the anisotropy of the CMB, the large scale distribution of matter, the luminosity distance of high-redshift type Ia supernovae and ...
متن کاملConstraints on Cosmological Parameters from Current Cmb Data
We discuss the constraints one can place on cosmological parameters using current cosmic microwave background data. A standard χ– minimization over band–power estimates is first presented, followed by a discussion of the more correct likelihood approach. We propose an approximation to the complete likelihood function of an arbitrary experiment requiring only limited and easily found information...
متن کاملConstraints on cosmological parameters from recent measurements of CMB anisotropy
A key prediction of cosmological theories for the origin and evolution of structure in the Universe is the existence of a ‘Doppler peak’ in the angular power spectrum of cosmic microwave background (CMB) fluctuations. We present new results from a study of recent CMB observations which provide the first strong evidence for the existence of a ‘Doppler Peak’ localised in both angular scale and am...
متن کامل0 Global Constraints on Key Cosmological Parameters
Data from Type Ia supernovae, along with X-ray cluster estimates of the universal baryon fraction and Big Bang Nucleosynthesis (BBN) determina-tions of the baryon-to-photon ratio, are used to provide estimates of several global cosmological parameters at epochs near zero redshift. We show that our estimate of the present baryon density is in remarkably good agreement with that inferred from BBN...
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: The Astrophysical Journal
سال: 2000
ISSN: 0004-637X
DOI: 10.1086/317323