Argelander Institut für Astronomie - HEALPix nside=1024 data server, release 1 February 2024
Scaling error for H2 column density maps corrected, see Erratum. Modification of XCO enabled.
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HEALPix nside=1024 all-sky column density maps for the specified velocity range are generated from HI4PI Gaussian components based on EBHIS and GASS observations. Calculated are the distributions for CO-dark molecular hydrogen (H2), the total estimated CO-dark and CO-bright molecular hydrogen (H2tot), and the total atomic hydrogen (Htot). Only Gaussian components with center velocities vmin < vLSR < vmax are used. For a detailed explanation see the references below.
The processing of your personal data is according to EU regulation 2016/679, see https://astro.uni-bonn.de/en/institute/datenschutzerklaerung. A synchronous data processing is not possible. Therefore it is necessary that you give your e-mail address for a proper processing of your request (for the name you may use a nickname). You will get a notificatinon how to download your data. There is no further processing of personal data except for the case of repeated failure of a request. In this case the e-mail address is used to get in contact to the user for a clarfication what went wrong. Using our service implies that you have given permission to be sent messages related to the processing of your data.
EBHIS is based on observations with the 100-m telescope of the MPIfR (Max-Planck-Institut für Radioastronomie) at Effelsberg. GASS was observed with the Parkes Radio Telescope as part of the Australia Telescope which is funded by the Commonwealth of Australia for operation as a National Facility managed by CSIRO.
If you use data products from our server in your research or publications, please reference the following:
Kalberla, P. M. W., Kerp, J. and Haud, U. (2020) A&A, 639, A26 HI filaments are cold and associated with dark molecular gas, HI4PI based estimates of the local diffuse CO-dark H2
Haud, U. (2000) A&A, 364, 83 Gaussian decomposition of the Leiden/Dwingeloo survey. I. Decomposition algorithm
HI4PI Collaboration, N. Ben Bekhti, L. Flöer, et al. (2016) A&A, 594, A116 HI4PI: a full-sky H i survey based on EBHIS and GASS
B. Winkel, J. Kerp, L. Flöer, P. M. W. Kalberla, N. Ben Bekhti, R. Keller and D. Lenz, (2016) A&A 585, A41 The Effelsberg-Bonn H i Survey: Milky Way gas
Kalberla, P.M.W. and Haud, U. (2015) A&A 578, A78 (Highlight: Gass: The Parkes Galactic All-Sky Survey. III)
Webinterface created by Peter Kalberla