@MastersThesis{Vale:1984:PrNoMa,
               author = "Vale, Jos{\'e} Luiz Monteiro do",
                title = "Procura de novos masers de vapor d'{\'a}gua na 
                         dire{\c{c}}{\~a}o de RCW 19-20, 38 e 48-49",
               school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                 year = "1984",
              address = "S{\~a}o Jos{\'e} dos Campos",
                month = "1983-08-26",
             keywords = "regi{\~o}es HII, maser, vapor d'{\'a}gua.",
             abstract = "O presente trabalho tem por objetivo a identifica{\c{c}}{\~a}o 
                         de regi{\~o}es de forma{\c{c}}{\~a}o sequencial de estrelas 
                         massivas utilizando fontes de emiss{\~a}o maser da mol{\'e}cula 
                         11 2_0 como indicadores. S{\~a}o derivadas as 
                         equa{\c{c}}{\~o}es que governam a evolu{\c{c}}{\~a}o de uma 
                         frente de choque produzida pela radia{\c{c}}{\~a}o ionizante de 
                         um grupo de estrelas OB. As condi{\c{c}}{\~o}es de instabilidade 
                         nesta frente de choque s{\~a}o ent{\~a}o analisadas. Por outro 
                         lado, {\'E} feita urna revis{\~a}o do bin{\^o}mio maser H2 0 - 
                         estrela massiva, para esclarecer o porqu{\^e} de identificar 
                         regi{\~o}es de forma{\c{c}}{\~a}o recente de estrelas massivas 
                         com fontes maser. Das tr{\^e}s regi{\~o}es escolhidas, RCT9 
                         19-20, RCW 38 e RCW 48-49, apenas a RCW 38 apresenta as 
                         condi{\c{c}}{\~o}es necess{\'a}rias para tal 
                         identifica{\c{c}}{\~a}o. ABSTRACT: rhe subject of this work is 
                         the identification ofregions ofsequential massive star formation, 
                         using maser sources of H 20 molecule as indicators. The equations 
                         that govern the evolution of a shock front produced by the 
                         ionizing radiation ofan OB star group are derived. The stability 
                         conditions in this shock front are then ana/ized. On the other 
                         hand, a review of the binomial H 20 maser-massive star, to olear 
                         up why to identify regions of recent star formation with maser 
                         sources, is mad5... From the three choosen regions, RCW 19-20, RCW 
                         38 and RCW 48-49, only RCW 38 shows the necessary conditions for 
                         the chove identification.",
            committee = "Martin, In{\'a}cio Malmonge (presidente) and Scalise J{\'u}nior, 
                         Eug{\^e}nio (orientador) and Braz, Maria Alcina and Kaufmann, 
                         Pierre and Abraham, Zulema",
           copyholder = "SID/SCD",
         englishtitle = "x",
             language = "pt",
                pages = "88",
                  ibi = "8JMKD3MGP3W34R/3RC7DB5",
                  url = "http://urlib.net/ibi/8JMKD3MGP3W34R/3RC7DB5",
           targetfile = "3039.pdf",
        urlaccessdate = "07 maio 2024"
}