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DASI Degree Angular Scale Interferometer at the South Pole Image of the telescope at the south pole. A series of metal tubes sticks out of a flat metal box with a rounded bottom. It is surrounded by a semi-circular metal baffle, covering the ground. In the background is white snow and some far-off buildings. DASI refractive "telescope" with 26-36GHz HEMT receiver. An instrument made out of metal cylindrical parts. Cosmic Background Imager "sister" instrument to DASI (Tony Readhead, Steve Padin, et al.) A series of cylinders sits on metal scaffolding, angled to point at the sky. In the background are mountains and a blue sky.

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DASI Degree Angular Scale Interferometer at the South Pole Image of the telescope at the south pole. A series of metal tubes sticks out of a flat metal box with a rounded bottom. It is surrounded by a semi-circular metal baffle, covering the ground. In the background is white snow and some far-off buildings. DASI refractive "telescope" with 26-36GHz HEMT receiver. An instrument made out of metal cylindrical parts. Cosmic Background Imager "sister" instrument to DASI (Tony Readhead, Steve Padin, et al.) A series of cylinders sits on metal scaffolding, angled to point at the sky. In the background are mountains and a blue sky.
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Kelly Lepo (kellylepo@astrodon.social)'s status on Tuesday, 21-Jan-2025 01:35:04 JST Kelly Lepo
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Degree Angular Scale Interferometer at the South Pole made observations of the CMB power spectrum in 1999-2000, a measurement of the size of the fluctuations in the cosmic microwave background in the sky.
These results agreed with the Lambda CDM model of the universe and required the presence of dark matter. The next season they returned and got polarization measurements.

In conversation about 3 months ago from astrodon.social permalink