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These systems were identified in the Local Volume for the first time more than 30 yr ago. We study these systems in the cosmological framework of the \u039b cold dark matter (\u039bCDM) model. We consider the Small MultiDark Planck simulation and populate its dark matter haloes by applying the semi-analytic model of galaxy formation SAG. We identify galaxy systems using a friends-of-friends algorithm with a linking length equal to $b=0.4 \\, {\\rm Mpc}\\, h^{-1}$ to reproduce the size of dwarf galaxy associations detected in the Local Volume. Our samples of dwarf systems are built up removing those systems that have one or more galaxies with stellar mass larger than a maximum threshold Mmax. We analyse three different samples defined by ${\\rm log}_{10}(M_{\\rm max}[{\\rm M}_{\\odot }\\, h^{-1}]) = 8.5, 9.0$, and 9.5. On average, our systems have typical sizes of $\\sim 0.2\\, {\\rm Mpc}\\, h^{-1}$, velocity dispersion of $\\sim 30 {\\rm km\\, s^{-1}}$, and estimated total mass of $\\sim 10^{11} {\\rm M}_{\\odot }\\, h^{-1}$. Such large typical sizes suggest that individual members of a given dwarf association reside in different dark matter haloes and are generally not substructures of any other halo. Indeed, in more than 90 per cent of our dwarf systems their individual members inhabit different dark matter haloes, while only in the remaining 10 per cent members do reside in the same halo. Our results indicate that the \u039bCDM model can naturally reproduce the existence and properties of dwarf galaxies\u2019 associations without much difficulty.<\/jats:p>","DOI":"10.1093\/mnras\/staa3197","type":"journal-article","created":{"date-parts":[[2020,10,22]],"date-time":"2020-10-22T03:14:27Z","timestamp":1603336467000},"page":"5932-5940","source":"Crossref","is-referenced-by-count":2,"title":["Associations of dwarf galaxies in a \u039bCDM Universe"],"prefix":"10.1093","volume":"499","author":[{"given":"C Yamila","family":"Yaryura","sequence":"first","affiliation":[{"name":"CONICET-Universidad Nacional de C\u00f3rdoba, Instituto de Astronom\u00eda Te\u00f3rica y Experimental (IATE), Laprida 854, X5000BGR C\u00f3rdoba, Argentina"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3055-6678","authenticated-orcid":false,"given":"Mario G","family":"Abadi","sequence":"additional","affiliation":[{"name":"CONICET-Universidad Nacional de C\u00f3rdoba, Instituto de Astronom\u00eda Te\u00f3rica y Experimental (IATE), Laprida 854, X5000BGR C\u00f3rdoba, Argentina"},{"name":"Observatorio Astron\u00f3mico, Universidad Nacional de C\u00f3rdoba, Laprida 854, X5000BGR C\u00f3rdoba, Argentina"}]},{"given":"Stefan","family":"Gottl\u00f6ber","sequence":"additional","affiliation":[{"name":"Leibniz-Institut f\u00fcr Astrophysik Potsdam (AIP), An der Sternwarte 16, D-14482 Potsdam, Germany"}]},{"given":"Noam I","family":"Libeskind","sequence":"additional","affiliation":[{"name":"Leibniz-Institut f\u00fcr Astrophysik Potsdam (AIP), An der Sternwarte 16, D-14482 Potsdam, Germany"},{"name":"University of Lyon; UCB Lyon 1\/CNRS\/IN2P3; IPN Lyon, IUF, IP2I Lyon, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0841-9127","authenticated-orcid":false,"given":"Sof\u00eda A","family":"Cora","sequence":"additional","affiliation":[{"name":"Instituto de Astrof\u00edsica de La Plata (CCT La Plata, CONICET,UNLP), Observatorio Astron\u00f3mico, Paseo del Bosque, B1900FWA La Plata, Argentina"},{"name":"Facultad de Ciencias Astron\u00f3micas y Geof\u00edsicas, Universidad Nacional de La Plata (UNLP), Observatorio Astron\u00f3mico, Paseo del Bosque, B1900FWA La Plata, Argentina"}]},{"given":"Andr\u00e9s N","family":"Ruiz","sequence":"additional","affiliation":[{"name":"CONICET-Universidad Nacional de C\u00f3rdoba, Instituto de Astronom\u00eda Te\u00f3rica y Experimental (IATE), Laprida 854, X5000BGR C\u00f3rdoba, Argentina"},{"name":"Observatorio Astron\u00f3mico, Universidad Nacional de C\u00f3rdoba, Laprida 854, X5000BGR C\u00f3rdoba, Argentina"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4998-7606","authenticated-orcid":false,"given":"Cristian A","family":"Vega-Mart\u00ednez","sequence":"additional","affiliation":[{"name":"Instituto de Investigaci\u00f3n Multidisciplinar en Ciencia y Tecnolog\u00eda, Universidad de La Serena, Ra\u00fal Bitr\u00e1n 1305, La Serena, Chile"},{"name":"Departamento de Astronom\u00eda, Universidad de La Serena, Av. 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