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J/A+A/556/A1 The 2.3GHz continuum survey of the GEM project (Tello+, 2013)
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Beginning of ReadMe :J/A+A/556/A1 The 2.3GHz continuum survey of the GEM project (Tello+, 2013)
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The 2.3 GHz continuum survey of the GEM project.
Tello C., Villela T., Torres S., Bersanelli M., Smoot G.F., Ferreira I.S.,
Cingoz A., Lamb J., Barbosa D., Perez-Becker D., Ricciardi S.,
Currivan J.A., Platania P., Maino D.
<Astron. Astrophys. 556, A1 (2013)>
=2013A&A...556A...1T
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ADC_Keywords: Surveys ; Radio continuum ; Interstellar medium ; Polarization
Keywords: surveys - Galaxy: structure - radio continuum: general -
radio continuum: ISM
Abstract:
Determining the spectral and spatial characteristics of the radio
continuum of our Galaxy is an experimentally challenging endeavour for
improving our understanding of the astrophysics of the interstellar
medium. This knowledge has also become of paramount significance for
cosmology, since Galactic emission is the main source of astrophysical
contamination in measurements of the Cosmic Microwave Background
radiation.
In this paper we present the scope of the Galactic Emission Mapping
(GEM) project and its results at 2.3GHz. Its observational program was
conceived and developed to reveal the large scale properties of
Galactic synchrotron radiation in total intensity and polarisation
through a self-consistent set of radio continuum surveys between
408MHz and 10GHz. GEM's unique observational strategy and
experimental design aim at the production of foreground templates in
order to address the mutual inconsistencies between existing surveys.
Description:
HEALPix (Gorski et al., 1999, Proceedings of the MPA/ESO Conference on
Evolution of Large-Scale Structure: from Recombination to Garching,
ed. A.J. Banday, R.K. Sheth, & L. Da Costa, 37) format of the 2300MHz
survey of the Galactic Emmision Mapping (GEM) project. Sky coverage:
full Declination band between delta=-51.73deg and
delta=+34.78deg. The observations were conducted from two
locations, one in Colombia in 1995 and another in Brazil in 1999, with
a double-shielded 5.5-m rotating-dish scanning the sky at 30 deg from
the zenith at 1-rpm. RMS sensitivity : 8.24-11.42mK;
<HPBW> : 2.31+/-0.03deg - horizontal and 1.85+/-0.10deg - vertical.