GASS: The Parkes Galactic All-Sky Survey. II. Stray-Radiation Correction and Second Data Release

By P. Kalberla, N. McClure-Griffiths, D. Pisano, M. Calabretta, H. Ford, F. J. Lockman, L. Staveley-Smith, J. Kerp, B. Winkel, T. Murphy and 1 more. 2010

159 citations recorded by the source corpus.

Context. The Parkes Galactic all-sky survey (GASS) is a survey of Galactic atomic hydrogen (H i) emission in the southern sky observed with the Parkes 64-m Radio Telescope. The first data release was published by McClure-Griffiths et al. (2009). Aims. We remove instrumental effects that affect the GASS and present the second data release. Methods. We calculate the stray-radiation by convolving the all-sky response of the Parkes antenna with the brightness temperature distribution from the Leiden/Argentine/Bonn (LAB) all sky 21-cm line survey, with major contributions from the 30-m dish of the Instituto Argentino de Radioastronomia (IAR) in the southern sky. Remaining instrumental baselines are corrected using the LAB data for a first guess of emission-free baseline regions. Radio frequency interference is removed by median filtering. Results. After applying these corrections to the GASS we find an excellent agreement with the Leiden/Argentine/Bonn (LAB) survey. The GASS is the highest spatial resolution, most sensitive, and is currently the most accurate H i survey of the Galactic H i emission in the southern sky. We provide a web interface for generation and download of FITS cubes.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/71f7228bb1723defa1dd759573dec1f9d84c665a

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In Astronomy and Astrophysics

1. A. Banday
2. Volker Springel
3. K. G'orski
4. Andrey V. Kravtsov
5. H. Eriksen
6. F. Hansen
7. M. White
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In Nuclear and High Energy Physics

1. Julien Lesgourgues
2. A. Banday
3. K. G'orski
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5. E. Orlando
6. P. Lilje
7. F. Hansen
8. M. White

Citations in the corpus

• HI4PI: a full-sky H i survey based on EBHIS and GASS (2016, methodology): “Full spectroscopic data of the EBHIS were recently released, while GASS has been available to the scientific community since 2009 (McClure-Griffiths et al. 2009), with revisions published in 2010 (Kalberla et al. 2010) and 2015 (Kalberla & Haud 2015).”
• Planckintermediate results (2013, unknown): “Frequently used are the ubiquitous 21 cm line emission from atomic hydrogen (H  , see Kalberla et al. 2010), the widespread 2.6 mm line emission from 12 CO as a proxy for H 2 molecules (Dame et al. 2001; Planck Collaboration XIII 2014), submillime-tre to infrared thermal emission from dust grains…”
• The Fermi Galactic Center GeV Excess and Implications for Dark Matter (2017, methodology): “We produced alternative high-resolution maps by using the GASS survey (Kalberla et al. 2010).”
• The Effelsberg-Bonn H i Survey: Milky Way gas - First data release (2015, methodology): “Furthermore, the very successful strayradiation prediction algorithms, which were also employed for the LAB and Galactic All-Sky Survey (GASS; McClureGriffiths et al. 2009; Kalberla et al. 2010; Kalberla & Haud 2015), have been adapted to the Effelsberg telescope.”
• Planck 2013 results. XXX. Cosmic infrared background measurements and implications for star formation (2013, methodology): “We make use of an analysis of the dust-to-gas correlation over the southern Galactic cap (b < −30◦) using Hi data from the GASS southern sky survey (Kalberla et al. 2010).”