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The G9.62+0.19–F Hot Molecular Core

By Hendrik Linz, Bringfried Stecklum, Thomas Henning, Peter Hofner, Bernhard Br, Thüringer L, Essternwarte Tautenburg, H. Linz, B. Stecklum, Th. Henning, P. Hofner and B. Br


We present the results of an extensive infrared study of the massive star– forming region G9.62+0.19. The data cover information from broad – and narrow–band filters in the wavelength range from 1 to 19 µm and are obtained with ESO’s near – and thermal infrared camera ISAAC at the VLT and with the mid–infrared cameras TIMMI2 (La Silla, ESO) and SpectroCam-10 (Mt. Palomar). The high sensitivity and resolution provided by these facilities revealed intriguing new details of this star–forming region and especially about the embedded hot molecular core (HMC) – component F. We analyse the newly found infrared sub–structure of four objects in this HMC region. While one of these objects (F2) is probably a foreground field star, the nature of the brightest object in the near–infrared there (F1) remains somewhat enigmatic. Our new astrometry proves that this object is not coincident with the peak of the molecular line emission of the HMC, but displaced by ∼ 1.7 arcsecs which translates to nearly 10000 AU on a linear scale. On the basis of the available data we estimat

Year: 2011
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