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MIGHTEE-H I: the first MeerKAT H I mass function from an untargeted interferometric survey

Anastasia A. Ponomareva, Matt J. Jarvis, Hengxing Pan, Natasha Maddox, Michael G Jones, Bradley S. Frank, Sambatriniaina H. A. Rajohnson, Wanga Mulaudzi, Martin Meyer, Elizabeth A. K. Adams, et al.
(2023) MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 522(4). p.5308-5319
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Abstract
We present the first measurement of the HI mass function (HIMF) using data from MeerKAT, based on 276 direct detections from the MeerKAT International Gig aHertz Tiered Extrag alactic Exploration (MIGHTEE) Surv e y Early Science data co v ering a period of approximately a billion years (0 <= z <= 0.084). This is the first HIMF measured using interferometric data o v er non-group or cluster field, i.e. a deep blank field. We constrain the parameters of the Schechter function that describes the HIMF with two different methods: 1//V-max and modified maximum likelihood (MML). We find a low-mass slope alpha = -1.29(-0.26)(+0.37), knee' mass log(10)(M-*/M-circle dot) = 10.07(-0.24)(+0.24) and normalization log10(phi(*)/Mpc(-3)) = -2.34(-0.36)(+0.32) (H-0 = 67.4 km s(-1) Mpc(-1)) for 1 = 1/V-max , and alpha = -1.44(-0.10)(+0.13), knee' mass log(10)(M-*/M-circle dot) = 10.22(-0.13)(+0.10) and normalization log10(phi(*)/Mpc(-3)) = -2.52(-0.14)(+0.19) for MML. When using 1/V-max we find both the low-mass slope and knee' mass to be consistent within 1 sigma with previous studies based on single-dish surv e ys. The cosmological mass density of HI is found to be slightly larger than previously reported: Omega(HI) = 5.46(-0.99)(+0.94) x 10(-4) h(67.4)(-1) from 1/V-max and Omega(HI) = 6.31(-0.31)(+0.31) x 10(-4) h(67.4)(-1) from MML but consistent within the uncertainties. We find no evidence for evolution of the HIMF o v er the last billion years.
Keywords
Astronomy and Astrophysics, surveys, galaxies: evolution, galaxies: ISM, galaxies: luminosity function, mass function, radio lines: galaxies, COSMIC VARIANCE, STAR-FORMATION, MOLECULAR GAS, GALAXIES, CATALOG, DENSITY, ILLUSTRISTNG, SIMULATIONS, EFFICIENT, EVOLUTION

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MLA
Ponomareva, Anastasia A., et al. “MIGHTEE-H I: The First MeerKAT H I Mass Function from an Untargeted Interferometric Survey.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 522, no. 4, 2023, pp. 5308–19, doi:10.1093/mnras/stad1249.
APA
Ponomareva, A. A., Jarvis, M. J., Pan, H., Maddox, N., Jones, M. G., Frank, B. S., … Sekhar, S. (2023). MIGHTEE-H I: the first MeerKAT H I mass function from an untargeted interferometric survey. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 522(4), 5308–5319. https://doi.org/10.1093/mnras/stad1249
Chicago author-date
Ponomareva, Anastasia A., Matt J. Jarvis, Hengxing Pan, Natasha Maddox, Michael G Jones, Bradley S. Frank, Sambatriniaina H. A. Rajohnson, et al. 2023. “MIGHTEE-H I: The First MeerKAT H I Mass Function from an Untargeted Interferometric Survey.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 522 (4): 5308–19. https://doi.org/10.1093/mnras/stad1249.
Chicago author-date (all authors)
Ponomareva, Anastasia A., Matt J. Jarvis, Hengxing Pan, Natasha Maddox, Michael G Jones, Bradley S. Frank, Sambatriniaina H. A. Rajohnson, Wanga Mulaudzi, Martin Meyer, Elizabeth A. K. Adams, Maarten Baes, Kelley M. Hess, Sushma Kurapati, Isabella Prandoni, Francesco Sinigaglia, Kristine Spekkens, Madalina Tudorache, Ian Heywood, Jordan D. Collier, and Srikrishna Sekhar. 2023. “MIGHTEE-H I: The First MeerKAT H I Mass Function from an Untargeted Interferometric Survey.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 522 (4): 5308–5319. doi:10.1093/mnras/stad1249.
Vancouver
1.
Ponomareva AA, Jarvis MJ, Pan H, Maddox N, Jones MG, Frank BS, et al. MIGHTEE-H I: the first MeerKAT H I mass function from an untargeted interferometric survey. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 2023;522(4):5308–19.
IEEE
[1]
A. A. Ponomareva et al., “MIGHTEE-H I: the first MeerKAT H I mass function from an untargeted interferometric survey,” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 522, no. 4, pp. 5308–5319, 2023.
@article{01H50S7Q4VVCZHHW6WEXT1X41H,
  abstract     = {{We present the first measurement of the HI mass function (HIMF) using data from MeerKAT, based on 276 direct detections from the MeerKAT International Gig aHertz Tiered Extrag alactic Exploration (MIGHTEE) Surv e y Early Science data co v ering a period of approximately a billion years (0 <= z <= 0.084). This is the first HIMF measured using interferometric data o v er non-group or cluster field, i.e. a deep blank field. We constrain the parameters of the Schechter function that describes the HIMF with two different methods: 1//V-max and modified maximum likelihood (MML). We find a low-mass slope alpha = -1.29(-0.26)(+0.37), knee' mass log(10)(M-*/M-circle dot) = 10.07(-0.24)(+0.24) and normalization log10(phi(*)/Mpc(-3)) = -2.34(-0.36)(+0.32) (H-0 = 67.4 km s(-1) Mpc(-1)) for 1 = 1/V-max , and alpha = -1.44(-0.10)(+0.13), knee' mass log(10)(M-*/M-circle dot) = 10.22(-0.13)(+0.10) and normalization log10(phi(*)/Mpc(-3)) = -2.52(-0.14)(+0.19) for MML. When using 1/V-max we find both the low-mass slope and knee' mass to be consistent within 1 sigma with previous studies based on single-dish surv e ys. The cosmological mass density of HI is found to be slightly larger than previously reported: Omega(HI) = 5.46(-0.99)(+0.94) x 10(-4) h(67.4)(-1) from 1/V-max and Omega(HI) = 6.31(-0.31)(+0.31) x 10(-4) h(67.4)(-1) from MML but consistent within the uncertainties. We find no evidence for evolution of the HIMF o v er the last billion years.}},
  author       = {{Ponomareva, Anastasia A. and Jarvis, Matt J. and Pan, Hengxing and Maddox, Natasha and Jones, Michael G and Frank, Bradley S. and Rajohnson, Sambatriniaina H. A. and Mulaudzi, Wanga and Meyer, Martin and Adams, Elizabeth A. K. and Baes, Maarten and Hess, Kelley M. and Kurapati, Sushma and Prandoni, Isabella and Sinigaglia, Francesco and Spekkens, Kristine and Tudorache, Madalina and Heywood, Ian and Collier, Jordan D. and Sekhar, Srikrishna}},
  issn         = {{0035-8711}},
  journal      = {{MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY}},
  keywords     = {{Astronomy and Astrophysics,surveys,galaxies: evolution,galaxies: ISM,galaxies: luminosity function, mass function,radio lines: galaxies,COSMIC VARIANCE,STAR-FORMATION,MOLECULAR GAS,GALAXIES,CATALOG,DENSITY,ILLUSTRISTNG,SIMULATIONS,EFFICIENT,EVOLUTION}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{5308--5319}},
  title        = {{MIGHTEE-H I: the first MeerKAT H I mass function from an untargeted interferometric survey}},
  url          = {{http://doi.org/10.1093/mnras/stad1249}},
  volume       = {{522}},
  year         = {{2023}},
}
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