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AlFoCS + Fornax3D : resolved star formation in the Fornax cluster with ALMA and MUSE

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Abstract
We combine data from ALMA and MUSE to study the resolved (∼300 pc scale) star formation relation (star formation rate, SFR, versus molecular gas surface density) in cluster galaxies. Our sample consists of nine Fornax cluster galaxies, including spirals, ellipticals, and dwarfs, covering a stellar mass range of ∼108.8–1011 M⊙. CO(1-0) and extinction corrected Hα were used as tracers for the molecular gas mass and SFR, respectively. We compare our results with Kennicutt and Bigiel et al. Furthermore, we create depletion time maps to reveal small-scale variations in individual galaxies. We explore these further in FCC290, using the ‘uncertainty principle for star formation’ (Kruijssen & Longmore) to estimate molecular cloud lifetimes, which we find to be short (<10 Myr) in this galaxy. Galaxy-averaged depletion times are compared with other parameters such as stellar mass and cluster-centric distance. We find that the star formation relation in the Fornax cluster is close to those from Kennicutt and Bigiel et al., but overlaps mostly with the shortest depletion times predicted by Bigiel et al. This slight decrease in depletion time is mostly driven by dwarf galaxies with disturbed molecular gas reservoirs close to the virial radius. In FCC90, a dwarf galaxy with a molecular gas tail, we find that depletion times are a factor ≳10 higher in its tail than in its stellar body.
Keywords
galaxies: clusters: individual: Fornax, galaxies: evolution, galaxies: ISM, galaxies: star formation. EMISSION-LINE KINEMATICS, GAS DEPLETION TIME, MOLECULAR GAS, ATLAS(3D) PROJECT, FORMATION LAW, RAM-PRESSURE, UNCERTAINTY PRINCIPLE, NEUTRAL HYDROGEN, NEARBY GALAXIES, SAURON PROJECT

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MLA
Zabel, N., et al. “AlFoCS + Fornax3D : Resolved Star Formation in the Fornax Cluster with ALMA and MUSE.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 496, no. 2, 2020, pp. 2155–82, doi:10.1093/mnras/staa1513.
APA
Zabel, N., Davis, T. A., Sarzi, M., Nedelchev, B., Chevance, M., Kruijssen, J. M. D., … Vlahakis, C. (2020). AlFoCS + Fornax3D : resolved star formation in the Fornax cluster with ALMA and MUSE. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 496(2), 2155–2182. https://doi.org/10.1093/mnras/staa1513
Chicago author-date
Zabel, N, T A Davis, M Sarzi, Boris Nedelchev, M Chevance, J M Diederik Kruijssen, E Iodice, et al. 2020. “AlFoCS + Fornax3D : Resolved Star Formation in the Fornax Cluster with ALMA and MUSE.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 496 (2): 2155–82. https://doi.org/10.1093/mnras/staa1513.
Chicago author-date (all authors)
Zabel, N, T A Davis, M Sarzi, Boris Nedelchev, M Chevance, J M Diederik Kruijssen, E Iodice, Maarten Baes, G J Bendo, E Maria Corsini, Ilse De Looze, P Tim de Zeeuw, D A Gadotti, M Grossi, R Peletier, F Pinna, Paolo Serra, F van de Voort, A Venhola, Sébastien Viaene, and C Vlahakis. 2020. “AlFoCS + Fornax3D : Resolved Star Formation in the Fornax Cluster with ALMA and MUSE.” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 496 (2): 2155–2182. doi:10.1093/mnras/staa1513.
Vancouver
1.
Zabel N, Davis TA, Sarzi M, Nedelchev B, Chevance M, Kruijssen JMD, et al. AlFoCS + Fornax3D : resolved star formation in the Fornax cluster with ALMA and MUSE. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. 2020;496(2):2155–82.
IEEE
[1]
N. Zabel et al., “AlFoCS + Fornax3D : resolved star formation in the Fornax cluster with ALMA and MUSE,” MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 496, no. 2, pp. 2155–2182, 2020.
@article{8699281,
  abstract     = {{We combine data from ALMA and MUSE to study the resolved (∼300 pc scale) star formation relation (star formation rate, SFR, versus molecular gas surface density) in cluster galaxies. Our sample consists of nine Fornax cluster galaxies, including spirals, ellipticals, and dwarfs, covering a stellar mass range of ∼108.8–1011 M⊙. CO(1-0) and extinction corrected Hα were used as tracers for the molecular gas mass and SFR, respectively. We compare our results with Kennicutt and Bigiel et al. Furthermore, we create depletion time maps to reveal small-scale variations in individual galaxies. We explore these further in FCC290, using the ‘uncertainty principle for star formation’ (Kruijssen & Longmore) to estimate molecular cloud lifetimes, which we find to be short (<10 Myr) in this galaxy. Galaxy-averaged depletion times are compared with other parameters such as stellar mass and cluster-centric distance. We find that the star formation relation in the Fornax cluster is close to those from Kennicutt and Bigiel et al., but overlaps mostly with the shortest depletion times predicted by Bigiel et al. This slight decrease in depletion time is mostly driven by dwarf galaxies with disturbed molecular gas reservoirs close to the virial radius. In FCC90, a dwarf galaxy with a molecular gas tail, we find that depletion times are a factor ≳10 higher in its tail than in its stellar body.}},
  author       = {{Zabel, N and Davis, T A and Sarzi, M and Nedelchev, Boris and Chevance, M and Kruijssen, J M Diederik and Iodice, E and Baes, Maarten and Bendo, G J and Corsini, E Maria and De Looze, Ilse and de Zeeuw, P Tim and Gadotti, D A and Grossi, M and Peletier, R and Pinna, F and Serra, Paolo and van de Voort, F and Venhola, A and Viaene, Sébastien and Vlahakis, C}},
  issn         = {{0035-8711}},
  journal      = {{MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY}},
  keywords     = {{galaxies: clusters: individual: Fornax,galaxies: evolution,galaxies: ISM,galaxies: star formation. EMISSION-LINE KINEMATICS,GAS DEPLETION TIME,MOLECULAR GAS,ATLAS(3D) PROJECT,FORMATION LAW,RAM-PRESSURE,UNCERTAINTY PRINCIPLE,NEUTRAL HYDROGEN,NEARBY GALAXIES,SAURON PROJECT}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{2155--2182}},
  title        = {{AlFoCS + Fornax3D : resolved star formation in the Fornax cluster with ALMA and MUSE}},
  url          = {{http://dx.doi.org/10.1093/mnras/staa1513}},
  volume       = {{496}},
  year         = {{2020}},
}

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