Resolution of massive compact clusters in the 30 Doradus periphery with the Hubble Space Telescope

Hubble Space Telescope Wide Field/Planetary Camera UBV images of three massive, compact multiple systems with the SNR 30 Dor B/NGC 2060 and 30 Dor C/NGC 2044 are discussed and illustrated. In two cases, WN+OB objects have been resolved into additional components to those previously known from ground...

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Veröffentlicht in:The Astrophysical journal 1995-02, Vol.439 (2), p.L47
Hauptverfasser: Walborn, Nolan R., Mackenty, John W., Saha, Abhijit, White, Richard L., Parker, Joel WM
Format: Artikel
Sprache:eng
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Zusammenfassung:Hubble Space Telescope Wide Field/Planetary Camera UBV images of three massive, compact multiple systems with the SNR 30 Dor B/NGC 2060 and 30 Dor C/NGC 2044 are discussed and illustrated. In two cases, WN+OB objects have been resolved into additional components to those previously known from ground-based observations, substantially reducing the luminosities of the WN stars and rendering them currently unidentified; in the third case, the components of a B+K composite-spectrum object have been clearly identified. The results are of significance for evolutionary interpretations of these massive stars and for determinations of the upper IMF in extragalactic systems.
ISSN:0004-637X
1538-4357
DOI:10.1086/187741