Published March 20, 2020
| Version 2
Dataset
Open
The Westerbork HALOGAS Survey: Data Release 1
Contributors
Researchers:
- Adebahr, Björn1
- Ben Bekhti, Nadya2
- Benjamin, Robert3
- de Blok, W.J.G.4
- Dettmar, Ralf-Jürgen1
- Flöer, Lars2
- Fraternali, Filippo5
- Gentile, Gianfranco6
- Gorski, Mark7
- Herrera-Ruiz, Noelia1
- Jozsa, Gyula8
- Jütte, Eva1
- Kamphuis, Peter1
- Marasco, Antonino5
- Oosterloo, Tom4
-
Patterson, Maria9
- Pingel, Nick10
- Rand, Richard7
- Sancisi, Renzo5
- Serra, Paolo11
- Vargas, Carlos12
- Walterbos, Rene12
-
Winkel, Benjamin2
- Wu, Cat12
- Zschaechner, Laura13
- 1. Ruhr-Universität Bochum
- 2. University of Bonn
- 3. University of Wisconsin - Whitewater
- 4. ASTRON
- 5. University of Groningen
- 6. Vrije Universiteit Brussel
- 7. University of New Mexico
- 8. Rhodes University
- 9. University of Washington
- 10. Australian National University
- 11. INAF - Osservatorio Astronomico Cagliari
- 12. New Mexico State University
- 13. University of Helsinki
Description
The Westerbork HALOGAS Survey: Data Release 1 (version 2)
The Westerbork Hydrogen Accretion in LOcal GAlaxieS (HALOGAS) Survey comprises deep neutral hydrogen (HI) 21-cm emission line observations of 24 nearby galaxies, along with ancillary data products such as deep optical imaging, radio continuum images, and single-dish HI data. This first data release (HALOGAS-DR1) provides the following HI data products in FITS format, for each of the 24 galaxies:
- High resolution (~15") data products
- Data cube: <galaxy_name>-HR-cube.fits
- Moment-0 (integrated intensity): <galaxy_name>-HR_mom0m.fits
- Column density: <galaxy_name>-HR_coldens.fits
- Moment-1 (average velocity): <galaxy_name>-HR_mom1m.fits
- Low resolution (~30") data products
- Data cube: <galaxy_name>-LR-cube.fits
- Moment-0 (integrated intensity): <galaxy_name>-LR_mom0m.fits
- Column density: <galaxy_name>-LR_coldens.fits
- Moment-1 (average velocity): <galaxy_name>-LR_mom1m.fits
Moment maps were generated with the SoFiA source finding package.
Changes from version 1
- A substantial error was identified with the velocity axis of the HI cubes for NGC 4448, leading to a large bulk offset from the true systemic velocity of the galaxy. Version 2 corrects this error in the cubes and the corresponding moment-1 (average velocity) images for NGC 4448. The data products for all other galaxies are unmodified from version 1.
Acknowledgements
If you make use of these data products in any publication or presentation, we kindly ask you to cite the following paper(s):
- Primary HALOGAS reference: Heald et al. (2011)
- Additional reference for NGC 891: Oosterloo et al. (2007)
- Additional reference for NGC 2403: Fraternali et al. (2002)
and to include the following acknowledgement:
This research made use of data from WSRT HALOGAS-DR1. The Westerbork Synthesis Radio Telescope is operated by ASTRON (Netherlands Institute for Radio Astronomy) with support from the Netherlands Foundation for Scientific Research NWO.
Files
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md5:b3ffc5f358393cb3a25cb76c317dd657
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4.2 MB | Download |
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md5:3aa16d4b2546430c7aaca659afbbc4d2
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4.2 MB | Download |
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md5:5d2537df56ed3d076b0bd3d1f77ad579
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4.2 MB | Download |
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md5:02cc4d0274f4fb2b867b473741a8fda0
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102.8 MB | Download |
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md5:c6a8ddff1ab09c30c9597ebeb5d5bbc5
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1.1 MB | Download |
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md5:3f0b09c5dd946ef8829f2c193f9c480b
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1.1 MB | Download |
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md5:abdfbd0ac17819294cd15ac515afa23a
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1.1 MB | Download |
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md5:09fa644fbe92cf3322946c681a91bb84
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102.8 MB | Download |
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md5:11ad1512a72fdcab1114172618c5d731
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1.1 MB | Download |
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md5:8aae1393db8c7e92f3c6bf45f491c231
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1.1 MB | Download |
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md5:7b03ca6afb94537cc0eec7af453e48c0
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1.1 MB | Download |