A deep photometric study of IC 5146

The UBVRI photometry of some 1000 stars in the neighborhood of the young complex IC 5146 has been obtained using PDS tracings of prime-focus plates taken with the Mayall 4 m telescope at Kitt Peak National Observatory (KPNO). An analysis of the images of clustering areas centered around BD + 46 degr...

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Veröffentlicht in:	The Astrophysical journal. Supplement series 1984-10, Vol.56 (2), p.211-229
Hauptverfasser:	FORTE, J. C, ORSATTI, A. M
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Earth, ocean, space Exact sciences and technology Stellar clusters and associations Stellar systems. Galactic and extragalactic objects and systems. The universe
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Beschreibung
Zusammenfassung:	The UBVRI photometry of some 1000 stars in the neighborhood of the young complex IC 5146 has been obtained using PDS tracings of prime-focus plates taken with the Mayall 4 m telescope at Kitt Peak National Observatory (KPNO). An analysis of the images of clustering areas centered around BD + 46 degrees 3474 reveals a stellar population of 110 stars (+ or - 20 stars) with maximum ages of 10 to 30 million years. The stars are of spectral type K and the star forming efficiency of the region is determined to be 10 percent. A possible exciting source for the molecular CO hot spot (HS 1) is identified, and the nebular distribution of the region is discussed. A detailed list of the photometric data is provided.
ISSN:	0067-0049 1538-4365
DOI:	10.1086/190981