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Greenland Cosmology Program

General

Project start
01.01.2016
Project end
31.12.2018
Type of project
ARMAP/NSF
Project theme
Space physics
Project topic
Space physics

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, Mid-West
Fieldwork location

Geolocation is 67.0179977417, -50.69400024414

Fieldwork start
11.08.2016
Fieldwork end
19.08.2016

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland Ice Sheet
Fieldwork location

Geolocation is 72.57, -38.48

Fieldwork start
13.08.2016
Fieldwork end
17.08.2016

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland, Mid-West
Fieldwork location

Geolocation is 67.0179977417, -50.69400024414

Fieldwork start
13.07.2018
Fieldwork end
15.08.2018

SAR information

Fieldwork / Study

Fieldwork country
Greenland (DK)
Fieldwork region
Greenland Ice Sheet
Fieldwork location

Geolocation is 72.57, -38.48

Fieldwork start
15.07.2018
Fieldwork end
13.08.2018

SAR information

Project details

09.04.2019
Science / project plan

.

Science / project summary
The millimeter wavelength sky is critical for understanding cosmological foregrounds in order to remove the galactic signature from the cosmological signature. This is especially important in searching for the gravity wave signatures in the Cosmic Microwave Background (CMB). There are two major goals for the longer term effort in Greenland. One is to study the galactic foregrounds by mapping about 50% of the sky AND to feed these maps and understanding into the deep cosmological maps we will make from Greenland at 30, 40 and eventually at 80 GHz to search for evidence of gravitational waves from the early universe. In order to do the latter (search for gravitational waves) researchers must do the former (characterize the galactic foregrounds) as so poignantly been shown by the recent Planck release. Greenland is one of the best observing sites and allows coverage of the northern hemisphere, which is less contaminated by the galaxy and is complimentary to southern hemisphere measurements at higher frequencies that study dust contaminated frequencies. In the longer term we will want to duplicate the same system we build in Greenland in the Southern hemisphere to get complete sky coverage, possibly in Antarctica. This experiment will consist of a series of replicated telescopes using molds and technology the researchers have recently developed that allows for a staged approach with both short term results and long term observations. This data will be of use to not only the field of cosmology but to those who study galactic processes , high energy cosmic rays, galactic magnetic fields, and even studies of the neutrino mass. This program has broad scientific implications and will place Denmark at the forefront of a critical area of cosmology.
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