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arXiv:astro-ph/0504603 (astro-ph)
[Submitted on 27 Apr 2005]

Title:L-band (3.5 micron) IR-excess in massive star formation, I. 30 Doradus

Authors:M. Maercker, M. G. Burton
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Abstract: L-band data of 30 Doradus at 3.5 micron taken with SPIREX (South Pole Infrared Explorer) is presented. The photometry was combined with 2MASS JHK data at 1.25-2.2 micron. Colour-colour and colour-magnitude diagrams are constructed and used to determine the sources with infrared excess. These are interpreted as circumstellar disks, and enable the fraction of sources with disks (the cluster disk fraction or CDF) to be determined. We find that ~42% of the sources detected at L-band in 30 Doradus have an IR-excess.
Comments: 18 pages, 13 eps images, uses this http URL, accepted by A&A in April, in press
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/0504603
  (or arXiv:astro-ph/0504603v1 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/0504603
Related DOI: https://doi.org/10.1051/0004-6361%3A20052722

Submission history

From: Matthias Maercker [view email]
[v1] Wed, 27 Apr 2005 15:16:21 UTC (890 KB)
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