MHONGOOSE: A MeerKAT nearby galaxy H i survey

W. J.G. de Blok; J. Healy; F. M. Maccagni; D. J. Pisano; A. Bosma; J. English; T. Jarrett; A. Marasco; G. R. Meurer; S. Veronese; F. Bigiel; L. Chemin; F. Fraternali; B. W. Holwerda; P. Kamphuis; H. R. Klöckner; D. Kleiner; A. K. Leroy; M. Mogotsi; K. A. Oman; E. Schinnerer; L. Verdes-Montenegro; T. Westmeier; O. I. Wong; N. Zabel; P. Amram; C. Carignan; F. Combes; E. Brinks; R. J. Dettmar; B. K. Gibson; G. I.G. Jozsa; B. S. Koribalski; S. S. McGaugh; T. A. Oosterloo; K. Spekkens; A. C. Schröder; E. A.K. Adams; E. Athanassoula; M. A. Bershady; R. J. Beswick; S. Blyth; E. C. Elson; B. S. Frank; G. Heald; P. A. Henning; S. Kurapati; S. I. Loubser; D. Lucero; M. Meyer; B. Namumba; S. H. Oh; A. Sardone; K. Sheth; M. W.L. Smith; A. Sorgho; F. Walter; T. Williams; P. A. Woudt; A. Zijlstra

doi:10.1051/0004-6361/202348297

MHONGOOSE: A MeerKAT nearby galaxy H i survey

W. J.G. de Blok
, J. Healy
, F. M. Maccagni
, D. J. Pisano
, A. Bosma
, J. English
, T. Jarrett
, A. Marasco
, G. R. Meurer
, S. Veronese
, F. Bigiel
, L. Chemin
, F. Fraternali
, B. W. Holwerda
, P. Kamphuis
, H. R. Klöckner
, D. Kleiner
, A. K. Leroy
, M. Mogotsi
, K. A. Oman

E. Schinnerer, L. Verdes-Montenegro, T. Westmeier, O. I. Wong, N. Zabel, P. Amram, C. Carignan, F. Combes, E. Brinks, R. J. Dettmar, B. K. Gibson, G. I.G. Jozsa, B. S. Koribalski, S. S. McGaugh, T. A. Oosterloo, K. Spekkens, A. C. Schröder, E. A.K. Adams, E. Athanassoula, M. A. Bershady, R. J. Beswick, S. Blyth, E. C. Elson, B. S. Frank, G. Heald, P. A. Henning, S. Kurapati, S. I. Loubser, D. Lucero, M. Meyer, B. Namumba, S. H. Oh, A. Sardone, K. Sheth, M. W.L. Smith, A. Sorgho, F. Walter, T. Williams, P. A. Woudt, A. Zijlstra

International Centre for Radio Astronomy Research (ICRAR)

Research output: Contribution to journal › Article › peer-review

35 Citations (Web of Science)

Abstract

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 90⁰⁰ resolution to ∼4 × 10¹⁹ cm⁻² at the highest resolution of 7⁰⁰. 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.

Original language	English
Article number	A109
Number of pages	34
Journal	Astronomy and Astrophysics
Volume	688
DOIs	https://doi.org/10.1051/0004-6361/202348297
Publication status	Published - Aug 2024

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de Blok, W. J. G., Healy, J., Maccagni, F. M., Pisano, D. J., Bosma, A., English, J., Jarrett, T., Marasco, A., Meurer, G. R., Veronese, S., Bigiel, F., Chemin, L., Fraternali, F., Holwerda, B. W., Kamphuis, P., Klöckner, H. R., Kleiner, D., Leroy, A. K., Mogotsi, M., ... Zijlstra, A. (2024). MHONGOOSE: A MeerKAT nearby galaxy H i survey. Astronomy and Astrophysics, 688, Article A109. https://doi.org/10.1051/0004-6361/202348297

@article{f37a0bc1b22f4cc88b382590b7f6dd88,

title = "MHONGOOSE: A MeerKAT nearby galaxy H i survey",

abstract = "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 9000 resolution to ∼4 × 1019 cm−2 at the highest resolution of 700. 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.",

keywords = "galaxies: dwarf, galaxies: evolution, galaxies: ISM, galaxies: spiral, radio lines: galaxies",

author = "\{de Blok\}, \{W. J.G.\} and J. Healy and Maccagni, \{F. M.\} and Pisano, \{D. J.\} and A. Bosma and J. English and T. Jarrett and A. Marasco and Meurer, \{G. R.\} and S. Veronese and F. Bigiel and L. Chemin and F. Fraternali and Holwerda, \{B. W.\} and P. Kamphuis and Kl{\"o}ckner, \{H. R.\} and D. Kleiner and Leroy, \{A. K.\} and M. Mogotsi and Oman, \{K. A.\} and E. Schinnerer and L. Verdes-Montenegro and T. Westmeier and Wong, \{O. I.\} and N. Zabel and P. Amram and C. Carignan and F. Combes and E. Brinks and Dettmar, \{R. J.\} and Gibson, \{B. K.\} and Jozsa, \{G. I.G.\} and Koribalski, \{B. S.\} and McGaugh, \{S. S.\} and Oosterloo, \{T. A.\} and K. Spekkens and Schr{\"o}der, \{A. C.\} and Adams, \{E. A.K.\} and E. Athanassoula and Bershady, \{M. A.\} and Beswick, \{R. J.\} and S. Blyth and Elson, \{E. C.\} and Frank, \{B. S.\} and G. Heald and Henning, \{P. A.\} and S. Kurapati and Loubser, \{S. I.\} and D. Lucero and M. Meyer and B. Namumba and Oh, \{S. H.\} and A. Sardone and K. Sheth and Smith, \{M. W.L.\} and A. Sorgho and F. Walter and T. Williams and Woudt, \{P. A.\} and A. Zijlstra",

note = "Publisher Copyright: {\textcopyright} The Authors 2024.",

year = "2024",

month = aug,

doi = "10.1051/0004-6361/202348297",

language = "English",

volume = "688",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

de Blok, WJG, Healy, J, Maccagni, FM, Pisano, DJ, Bosma, A, English, J, Jarrett, T, Marasco, A, Meurer, GR, Veronese, S, Bigiel, F, Chemin, L, Fraternali, F, Holwerda, BW, Kamphuis, P, Klöckner, HR, Kleiner, D, Leroy, AK, Mogotsi, M, Oman, KA, Schinnerer, E, Verdes-Montenegro, L, Westmeier, T , Wong, OI, Zabel, N, Amram, P, Carignan, C, Combes, F, Brinks, E, Dettmar, RJ, Gibson, BK, Jozsa, GIG, Koribalski, BS, McGaugh, SS, Oosterloo, TA, Spekkens, K, Schröder, AC, Adams, EAK, Athanassoula, E, Bershady, MA, Beswick, RJ, Blyth, S, Elson, EC, Frank, BS, Heald, G, Henning, PA, Kurapati, S, Loubser, SI, Lucero, D, Meyer, M, Namumba, B, Oh, SH, Sardone, A, Sheth, K, Smith, MWL, Sorgho, A, Walter, F, Williams, T, Woudt, PA & Zijlstra, A 2024, 'MHONGOOSE: A MeerKAT nearby galaxy H i survey', Astronomy and Astrophysics, vol. 688, A109. https://doi.org/10.1051/0004-6361/202348297

TY - JOUR

T1 - MHONGOOSE

T2 - A MeerKAT nearby galaxy H i survey

AU - de Blok, W. J.G.

AU - Healy, J.

AU - Maccagni, F. M.

AU - Pisano, D. J.

AU - Bosma, A.

AU - English, J.

AU - Jarrett, T.

AU - Marasco, A.

AU - Meurer, G. R.

AU - Veronese, S.

AU - Bigiel, F.

AU - Chemin, L.

AU - Fraternali, F.

AU - Holwerda, B. W.

AU - Kamphuis, P.

AU - Klöckner, H. R.

AU - Kleiner, D.

AU - Leroy, A. K.

AU - Mogotsi, M.

AU - Oman, K. A.

AU - Schinnerer, E.

AU - Verdes-Montenegro, L.

AU - Westmeier, T.

AU - Wong, O. I.

AU - Zabel, N.

AU - Amram, P.

AU - Carignan, C.

AU - Combes, F.

AU - Brinks, E.

AU - Dettmar, R. J.

AU - Gibson, B. K.

AU - Jozsa, G. I.G.

AU - Koribalski, B. S.

AU - McGaugh, S. S.

AU - Oosterloo, T. A.

AU - Spekkens, K.

AU - Schröder, A. C.

AU - Adams, E. A.K.

AU - Athanassoula, E.

AU - Bershady, M. A.

AU - Beswick, R. J.

AU - Blyth, S.

AU - Elson, E. C.

AU - Frank, B. S.

AU - Heald, G.

AU - Henning, P. A.

AU - Kurapati, S.

AU - Loubser, S. I.

AU - Lucero, D.

AU - Meyer, M.

AU - Namumba, B.

AU - Oh, S. H.

AU - Sardone, A.

AU - Sheth, K.

AU - Smith, M. W.L.

AU - Sorgho, A.

AU - Walter, F.

AU - Williams, T.

AU - Woudt, P. A.

AU - Zijlstra, A.

PY - 2024/8

Y1 - 2024/8

N2 - 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 9000 resolution to ∼4 × 1019 cm−2 at the highest resolution of 700. 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.

AB - 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 9000 resolution to ∼4 × 1019 cm−2 at the highest resolution of 700. 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.

KW - galaxies: dwarf

KW - galaxies: evolution

KW - galaxies: ISM

KW - galaxies: spiral

KW - radio lines: galaxies

UR - https://www.scopus.com/pages/publications/85199128477

U2 - 10.1051/0004-6361/202348297

DO - 10.1051/0004-6361/202348297

M3 - Article

AN - SCOPUS:85199128477

SN - 0004-6361

VL - 688

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - A109

ER -

MHONGOOSE: A MeerKAT nearby galaxy H i survey

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