Stellar populations associated with the LMC Papillon Nebula

Details Stellar populations associated with the LMC Papillon Nebula Stellar populations associated with the LMC Papillon Nebula

2004-03-26

arxiv.org/abs/astro-ph/0403626v1

Astron.Astrophys. 422 (2004) 129-139

Astronomy and Astrophysics

Astrophysics

Accepted in A&A 11 pages, 10 figures, 12 on-line material pages (= 1 table) Some figures have been replaced by jpeg versions t

Scientific paper

10.1051/0004-6361:20035875

We study the Large Magellanic Cloud Papillon Nebula (N159-5), a conspicuous High Excitation Blob (HEB) lying in the star forming complex N159. Using JHK near-infrared photometry obtained at the ESO VLT with the ISAAC camera, we examine the stellar populations associated with the Papillon, tracing their history using stellar evolution models. Two populations are revealed: one composed of young, massive stars with an age ~ 3 Myr, and a second consisting of older lower mass stars of age spreading between 1 and 10 Gyr. We analyze the properties of those populations and discuss their significance in the context of N159. We also estimate that if the star at the center of the Papillon is single its initial mass is ~ 50 solar masses and it is affected by an extinction Av ~ 7 mag.

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