Astronomy and Astrophysics, volume 436, 117-126 (2005/6-2)
The LMC HII region N214C and its peculiar nebular blob.
MEYNADIER F., HEYDARI-MALAYERI M. and WALBORN N.R.
Abstract (from CDS):
We study the Large Magellanic Cloud HII region N214C using imaging and spectroscopy obtained at the ESO New Technology Telescope. On the basis of the highest resolution images so far obtained of the OB association LH 110, we show that the main exciting source of the HII region, Sk-71°51, is in fact a tight cluster of massive stars consisting of at least 6 components in an area ∼4'' wide. Spectroscopic observations allow us to revise the spectral type of the main component (#17) to O2 V((f*))+OB, a very rare, hot type. We also classify several other stars associated with N214C and study the extinction and excitation characteristics of the HII region. Moreover, we obtain BVR photometry and astrometry of 2365 stars and from the corresponding color-magnitude diagram study the stellar content of N214C and the surrounding LH 110. Furthermore, we discover a striking compact blob of ionized gas in the outer northern part of N214C. A spherical structure of ∼5'' in radius (∼1.3pc), it is split into two lobes by absorbing dust running diametrically through its center. We discuss the possible nature of this object.
stars: early-type - ISM: individual objects: N 214C - galaxies: Magellanic Clouds
VizieR on-line data:
<Available at CDS (J/A+A/436/117): table2.dat table3.dat>
Tables 2, 3: [MHW2005] NNNN (Nos 1-2389). Fig.7: [MHW2005] N214H-N (Nos N214H-1 to N214H-4).
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