Summary
Considering the existence of many unresolved binary systems among the stars used to derive the stellar luminosity function, we have estimated the increase in the total mass density in the solar neighbourhood. Such an increase depends on the fraction of stars which are unresolved binaries, but conservative estimates give a value larger than 0.004M ⊙ pc−3.
Riassunto
Si è valutato l'aumento della densità locale di massa, in vicinanza del sole, prodotto dall'esistenza di molti sistemi binari non risolti tra le stelle usate per derivare la funzione di luminosità stellare. Questo aumento dipende dalla frazione di stelle che sono binarie non risolte, ma stime conservative forniscono un valore maggiore di 0.004M ⊙ pc−3.
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Mezzetti, M., Giuricin, G. & Mardirossian, F. Effect of binarity on the local stellar mass density. Il Nuovo Cimento C 8, 415–417 (1985). https://doi.org/10.1007/BF02507451
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DOI: https://doi.org/10.1007/BF02507451