Journal article : Review
MIGHTEE-HI: The H I emission project of the MeerKAT MIGHTEE survey
- Abstract:
- We present the H I emission project within the MIGHTEE survey, currently being carried out with the newly commissioned MeerKAT radio telescope. This is one of the first deep, blind, medium-wide interferometric surveys for neutral hydrogen (H I) ever undertaken, extending our knowledge of H I emission to z = 0.6. The science goals of this medium-deep, medium-wide survey are extensive, including the evolution of the neutral gas content of galaxies over the past 5 billion years. Simulations predict nearly 3000 galaxies over 0 < z < 0.4 will be detected directly in H I, with statistical detections extending to z = 0.6. The survey allows us to explore H I as a function of galaxy environment, with massive groups and galaxy clusters within the survey volume. Additionally, the area is large enough to contain as many as 50 local galaxies with H I mass < 108 M⊙, which allows us to study the low-mass galaxy population. The 20 deg2 main survey area is centred on fields with exceptional multi-wavelength ancillary data, with photometry ranging from optical through far-infrared wavelengths, supplemented with multiple spectroscopic campaigns. We describe here the survey design and the key science goals. We also show first results from the Early Science observations, including kinematic modelling of individual sources, along with the redshift, H I, and stellar mass ranges of the sample to date.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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Access Document
- Files:
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(Preview, Accepted manuscript, 720.1KB, Terms of use)
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- Publisher copy:
- 10.1051/0004-6361/202039655
Authors
- Publisher:
- EDP Sciences
- Journal:
- Astronomy and Astrophysics More from this journal
- Volume:
- 646
- Issue:
- February 2021
- Article number:
- A35
- Publication date:
- 2021-02-02
- Acceptance date:
- 2020-11-10
- DOI:
- EISSN:
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1432-0746
- ISSN:
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0004-6361
- Language:
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English
- Keywords:
- Subtype:
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Review
- Pubs id:
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1161374
- Local pid:
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pubs:1161374
- Deposit date:
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2021-03-10
Terms of use
- Copyright holder:
- ESO
- Copyright date:
- 2021
- Rights statement:
- © ESO 2021
- Notes:
- This is the accepted manuscript version of the article. The final published version is available from EDP sciences at https://doi.org/10.1051/0004-6361/202039655
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