MHONGOOSE: A MeerKAT nearby galaxy H I survey
| Title: | MHONGOOSE: A MeerKAT nearby galaxy H I survey |
|---|---|
| Authors: | de Blok, W. J. G; Healy, Julia; Maccagni, F. M.; Pisano, D. J.; Bosma, A.; English, J.; Jarrett, T.; Marasco, A.; Meuer, G. R.; Veronese, S.; Bigiel, F.; Chemin, L; Fraternali, F.; Holwerda, B. W.; Kamphuis, P.; Klockner, H-R; Kleiner, D.; Leroy, A.; Mogotsi, M.; Oman, K. A.; Schinnerer, E.; Verdes-Montenegro, L.; Westmeier, T; Wong, O. I.; Zabel, N.; Amram, P.; Carigan, C.; Combes, F.; Brinks, E.; Dettmar, R. J.; Gibson, B. K.; Jozsa, G I G; Koribalski, B. S.; McGaugh, S. S.; Oosterloo, T. A.; Spekkens, K.; Schroder, A. C.; Adams, E. A. K.; Athanassoula, E; Bershady, M. A.; Beswick, Rob; Blyth, S.; Elson, E. C.; Frank, B. S.; Heald, G.; Henning, P. A.; Kurapati, S.; Loubser, S. I.; lucero, D; Meyer, M.; Namumba, B.; Oh, S-H.; Sardone, A; Sheth, K.; Smith, M. W. L.; Sorgho, A.; Walter, F.; Williams, T.; Woudt, P. A.; Argo, Megan; Zijlstra, Albert |
| Source: | de Blok, W J G, Healy, J, Maccagni, F M, Pisano, D J, Bosma, A, English, J, Jarrett, T, Marasco, A, Meuer, G R, Veronese, S, Bigiel, F, Chemin, L, Fraternali, F, Holwerda, B W, Kamphuis, P, Klockner, H-R, Kleiner, D, Leroy, A, Mogotsi, M, Oman, K A, Schinnerer, E, Verdes-Montenegro, L, Westmeier, T, Wong, O I, Zabel, N, Amram, P, Carigan, C, Combes, F, Brinks, E, Dettmar, R J, Gibson, B K, Jozsa, G I G, Koribalski, B S, McGaugh, S S, Oosterloo, T A, Spekkens, K, Schroder, A C, Adams, E A K, Athanassoula, E, Bershady, M .... |
| Publication Year: | 2024 |
| Collection: | The University of Manchester: Research Explorer - Publications |
| Description: | The MHONGOOSE (MeerKAT H I Observations of Nearby Galactic Objects: Observing Southern Emitters) survey maps the distribution and kinematics of the neutral atomic hydrogen (H I) gas in and around 30 nearby star-forming spiral and dwarf galaxies to extremely low H I column densities. The H I column density sensitivity (3σ over 16 km s−1) ranges from ∼5 × 1017 cm−2 at 90″ resolution to ∼4 × 1019 cm−2 at the highest resolution of 7″. The H I mass sensitivity (3σ over 50 km s−1) is ∼5.5 × 105 M⊙ at a distance of 10 Mpc (the median distance of the sample galaxies). The velocity resolution of the data is 1.4 km s−1. One of the main science goals of the survey is the detection of cold accreting gas in the outskirts of the sample galaxies. The sample was selected to cover a range in H I masses from 107 M⊙ to almost 1011 M⊙ in order to optimally sample possible accretion scenarios and environments. The distance to the sample galaxies ranges from 3 to 23 Mpc. In this paper, we present the sample selection, survey design, and observation and reduction procedures. We compared the integrated H I fluxes based on the MeerKAT data with those derived from single-dish measurement and find good agreement, indicating that our MeerKAT observations are recovering all flux. We present H I moment maps of the entire sample based on the first ten percent of the survey data, and find that a comparison of the zeroth- and second-moment values shows a clear separation in the physical properties of the H I between areas with star formation and areas without related to the formation of a cold neutral medium. Finally, we give an overview of the H I-detected companion and satellite galaxies in the 30 fields, five of which have not previously been cataloged. We find a clear relation between the number of companion galaxies and the mass of the main target galaxy. |
| Document Type: | article in journal/newspaper |
| Language: | English |
| ISSN: | 0004-6361; 1432-0746 |
| Relation: | info:eu-repo/semantics/altIdentifier/pissn/0004-6361; info:eu-repo/semantics/altIdentifier/eissn/1432-0746 |
| DOI: | 10.1051/0004-6361/202348297 |
| Availability: | https://research.manchester.ac.uk/en/publications/470a0ec4-69ab-40cf-8aed-6b90f52a3a09; https://doi.org/10.1051/0004-6361/202348297 |
| Rights: | info:eu-repo/semantics/openAccess |
| Accession Number: | edsbas.EF325743 |
| Database: | BASE |