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The fragmentation of massive star-forming regions [Elektronische Ressource] / put froward by Javier Adrián Rodón

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The Fragmentation ofMassive Star Forming Regions´ ´Javier Adrian RodonMax Planck Institut fur¨ AstronomieHeidelberg 2009Dissertation in Astronomysubmitted to theCombined Faculties of the Natural Sciences and Mathematicsof the Ruperto Carola University of Heidelberg, Germany,for the degree ofDoctor of Natural SciencesPut forward byLic. Javier Adrian´ Rodon´born in Cordoba,´ ArgentinaOral examination: 9.11.9The Fragmentation ofMassive Star Forming RegionsReferees: Prof. Dr. Thomas HenningPriv. Doz. Henrik BeutherA mi abuela Corina Jaya,aqu´ı estan´ los frutos de la distancia.To my grandmother Corina Jaya,distance has paid o.AbstractSince its discovery by E. Salpeter in 1955, the high mass end of the Initial Mass Function (IMF) has beencontinuously tested, and its slope has not changed from the value 2:35 originally calculated by Salpeter,the “Salpeter value”. Furthermore, it is found that this value is universal. It not only describes the massdistribution of stellar masses in the Milky Way but also in other galaxies.Stars form individually or in systems within molecular clouds, from local condensations of sizes on theorder of 0:01 pc, the so called “dense cores”. In the case of low mass star forming regions, it is foundthat the Core Mass Function (CMF) resembles the Salpeter IMF. However, in the case of massive star-forming (MSF) regions, the answer is not that clear.The first CMF for a MSF region was derived in 2004 by H. Beuther and P.

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Published 01 January 2009
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Language English
Document size 3 MB

The Fragmentation of
Massive Star Forming Regions
´ ´Javier Adrian Rodon
Max Planck Institut fur¨ Astronomie
Heidelberg 2009Dissertation in Astronomy
submitted to the
Combined Faculties of the Natural Sciences and Mathematics
of the Ruperto Carola University of Heidelberg, Germany,
for the degree of
Doctor of Natural Sciences
Put forward by
Lic. Javier Adrian´ Rodon´
born in Cordoba,´ Argentina
Oral examination: 9.11.9The Fragmentation of
Massive Star Forming Regions
Referees: Prof. Dr. Thomas Henning
Priv. Doz. Henrik BeutherA mi abuela Corina Jaya,
aqu´ı estan´ los frutos de la distancia.To my grandmother Corina Jaya,
distance has paid o.

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