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COnnecting LOcal to GLObal star formation via MIni-starburst

dc.contributor.authorNGUYEN LUONG, Quang,
hal.structure.identifierProcédés, Matériaux et Energie Solaire [PROMES]
dc.contributor.authorFRÉDÉRIQUE, Motte
hal.structure.identifierMICrobiologie de l'ALImentation au Service de la Santé [MICALIS]
dc.contributor.authorNGUYEN, Hans,
hal.structure.identifierFORMATION STELLAIRE 2015
dc.contributor.authorSCHNEIDER, N.
hal.structure.identifierDépartement d'Astrophysique (ex SAP) [DAP]
dc.contributor.authorLOUVET, Fabien,
dc.date.issued2015-08
dc.date.conference2015-01-04
dc.description.abstractEnTo connect local to global star formation, we compare the mass, size, line width, and star formation rate (SFR) density of cloud structures ranging from Galactic clouds ($\sim$1--10~pc in size) to galaxies (with $\sim$1--10~kpc sizes).Our focus is on molecular cloud structures, called massive complexes, which have intermediate sizes of $\sim$100~pc and masses larger than $10^6~\msun$.We propose using a starburstiness quantity $\zeta$ to quantify the star formation intensity of a molecular cloud complex, or how much its SFR deviates from the star formation relations such as Kennicutt and Lada ones. For molecular cloud complex that has $\zeta>3$ , we call it mini-starburst complex, otherwise normal or main-sequence complex. This $\zeta>3$ threshold leads to a SFR threshold. Most complexes can be classified as ministarburst as having $\zeta>3$. We propose that mini-starburst events represent an enhancement of the star formation activity, following dynamic events such as compression, colliding flows, or agglomeration which compress materials within a cloud complex.
dc.language.isoen
dc.title.enCOnnecting LOcal to GLObal star formation via MIni-starburst
dc.typeCommunication dans un congrès
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
bordeaux.page55299
bordeaux.volume22
bordeaux.conference.title2015IAUGA..2255299N - IAU General Assembly, Meeting #29, #2255299 - held 4-8 January 2015 in Seattle, USA
bordeaux.countryUS
bordeaux.conference.citySeattle
bordeaux.peerReviewedoui
hal.identifierhal-01197434
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.end2015-01-08
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01197434v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2015-08&rft.volume=22&rft.spage=55299&rft.epage=55299&rft.au=NGUYEN%20LUONG,%20Quang,&FR%C3%89D%C3%89RIQUE,%20Motte&NGUYEN,%20Hans,&SCHNEIDER,%20N.&LOUVET,%20Fabien,&rft.genre=unknown


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