EVOLUTION AND LIFETIME OF TRANSIENT CLUMPS IN THE TURBULENT INTERSTELLAR MEDIUM
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
18/10/2012
18/10/2012
2011
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| Resumo |
We study the evolution of dense clumps and provide an argument that the existence of the clumps is not limited by their crossing times. We claim that the lifetimes of the clumps are determined by turbulent motions on a larger scale, and we predict the correlation of clump lifetime with column density. We use numerical simulations to successfully test this relation. In addition, we study the morphological asymmetry and the magnetization of the clumps as functions of their masses. Center for Magnetic Self-Organization in Astrophysical and Laboratory Plasmas, NSF[AST 0808118] Brazilian agency FAPESP[2009/10102-0] |
| Identificador |
ASTROPHYSICAL JOURNAL, v.735, n.2, 2011 0004-637X http://producao.usp.br/handle/BDPI/17182 10.1088/0004-637X/735/2/99 |
| Idioma(s) |
eng |
| Publicador |
IOP PUBLISHING LTD |
| Relação |
Astrophysical Journal |
| Direitos |
restrictedAccess Copyright IOP PUBLISHING LTD |
| Palavras-Chave | #ISM: clouds #ISM: kinematics and dynamics #magnetohydrodynamics (MHD) #methods: numerical #stars: formation #COMPRESSIBLE MAGNETOHYDRODYNAMIC TURBULENCE #MOLECULAR CLOUD CORES #PARTIALLY-IONIZED GAS #MASS-LOSS RATES #STAR-FORMATION #NUMERICAL SIMULATIONS #MAGNETIC-FIELD #ASTROPHYSICAL IMPLICATIONS #DENSITY-FLUCTUATIONS #PRESSURE CONFINEMENT #Astronomy & Astrophysics |
| Tipo |
article original article publishedVersion |
