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dc.contributor.authorMorokuma Matsui, Kana
dc.contributor.authorMiura, Rie E.
dc.contributor.authorEspada Fernández, Daniel
dc.identifier.citationKana Morokuma-Matsui... [et al.]. 2022 ApJS 263 40. []es_ES
dc.description.abstractWe conduct a 12C16O(J = 1−0) (hereafter CO) mapping survey of 64 galaxies in the Fornax cluster using the Atacama Large Millimeter/submillimeter Array Morita array in cycle 5. CO emission is detected from 23 out of the 64 galaxies. Our sample includes dwarf, spiral, and elliptical galaxies with stellar masses of Mstar ∼ 106.3−11.6 Me. The achieved beam size and sensitivity are 15″ × 8″ and ∼12 mJy beam−1 at the velocity resolution of ∼10 km s−1, respectively. We study the cold gas (molecular and atomic gas) properties of 38 subsamples with Mstar > 109 Me combined with literature H I data. We find that (1) the low star formation (SF) activity in the Fornax galaxies is caused by the decrease in the cold gas mass fraction with respect to stellar mass (hereafter, gas fraction) rather than the decrease of the SF efficiency from the cold gas; (2) the atomic gas fraction is more heavily reduced than the molecular gas fraction of such galaxies with low SF activity. A comparison between the cold gas properties of the Fornax galaxies and their environmental properties suggests that the atomic gas is stripped tidally and by the ram pressure, which leads to the molecular gas depletion with an aid of the strangulation and consequently SF quenching. Preprocesses in the group environment would also play a role in reducing cold gas reservoirs in some Fornax galaxies.es_ES
dc.description.sponsorshipMinistry of Education, Culture, Sports, Science and Technology, Japan (MEXT) Japan Society for the Promotion of Sciencees_ES
dc.description.sponsorshipGrants-in-Aid for Scientific Research (KAKENHI) 16H02158 JP17K14259 18H03717 19K03937 19J40004 19H01931 19H05076 20H05861 21H01128 21H04496es_ES
dc.description.sponsorshipSumitomo Foundation 180923es_ES
dc.description.sponsorshipCollaboration Funding of the Institute of Statistical Mathematics "New Development of the Studies on Galaxy Evolution with a Method of Data Science"es_ES
dc.description.sponsorshipMinistry of Science and Innovation, Spain (MICINN) Spanish Government BG20/00224 MCIN/AEI PID2020-114414GB-100 PID2020-113689GB-I00es_ES
dc.description.sponsorshipJunta de Andalucia P20_00334es_ES
dc.description.sponsorshipFEDER/Junta de Andalucia-Consejeria de Transformacion Economica, Industria, Conocimiento y Universidades A-FQM-510-UGR20es_ES
dc.description.sponsorshipEuropean Research Council (ERC) 679627 882793es_ES
dc.description.sponsorshipAustralian Research Council CE170100013es_ES
dc.description.sponsorshipKorea Astronomy and Space Science Institute - Korean government (MSIT) 2022-1- 840-05es_ES
dc.description.sponsorshipNational Aeronautics & Space Administration (NASA)es_ES
dc.publisherAmerican Astronomical Societyes_ES
dc.rightsAtribución 4.0 Internacional*
dc.titleCO(J=1-0) Mapping Survey of 64 Galaxies in the Fornax Cluster with the ALMA Morita Arrayes_ES

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Atribución 4.0 Internacional
Except where otherwise noted, this item's license is described as Atribución 4.0 Internacional