Degree Scale Anisotropy: SP94 Results

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dc.creatorGundersen, J.
dc.creatorLim, M.
dc.creatorStaren, J.
dc.creatorWuensche, C.
dc.creatorFigueiredo, N.
dc.creatorKoch, T. Gaier T.
dc.creatorMeinhold, P.
dc.creatorSeiffert, M.
dc.creatorCook, G.
dc.creatorSegale, A.
dc.creatorLubin, P.
dc.date1994-12-07
dc.date.accessioned2026-07-07T02:19:37Z
dc.date.available2026-07-07T02:19:37Z
dc.descriptionWe present results from 2 observations of the CMB performed from the South Pole during the 93-94 austral summer. Each observation employed a 3$^{\circ}$ peak to peak sinusoidal, single difference chop and consisted of a $20^{\circ}\times 1^{\circ}$ strip on the sky near our SP91 observations. The first observation used a Q-band receiver which operates in 3 bands between 38 and 45 GHz with a $1^{\circ}$ to $1_{\cdot}^{\circ }15$ FWHM beam. The second observation overlapped the first observation and used a Ka-band receiver which operates in 4 bands between 26 and 36 GHz with a $1_{\cdot}^{\circ}25$ to $1_{\cdot}^{\circ}7$ FWHM beam. Significant correlated structure is observed in all bands for each observation. The spectrum of the structure is consistent with a CMB spectrum; however, the data do not discriminate against flat or inverted spectrum point sources. The root mean square amplitude ($\pm 1σ$) of the combined (Ka+Q) data is $ΔT_{rms}=42.0_{-6.8}^{+15.8}$ $μ$K in a band of multipoles between $\ell=68^{+38}_{-32}$. A band power estimate of the CMB power spectrum, $C_\ell$, gives $\left\langle \frac{C_\ell \ell (\ell+1)}{2π}\right\rangle_B= 1.77_{-0.54}^{+1.58}\times 10^{-10}$. The band power estimates for the seperate Ka and Q-band results are larger than but consistent with the band power estimate of the combined Ka-band SP91 results.
dc.description14 pgs., LaTeX, 2 figs., submitted to APJL
dc.identifierhttps://arxiv.org/abs/astro-ph/9412020
dc.identifierhttp://arxiv.org/abs/astro-ph/9412020
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/9935
dc.subjectAstrophysics
dc.titleDegree Scale Anisotropy: SP94 Results
dc.typetext

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