Infrared imaging and spectroscopy of the(proto)cluster IRAS 18511+0146

S. Vig1,2*,L. Testi2,3,M. Walmsley2and R. Cesaroni2
1Department of Physics, Indian Institute of Technology Madras, Chennai 600036,India
2INAF-Osservatorio Astrofisico de Arcetri, Largo E. Fermi 5, I-50125 Firenze, Italy
3ESO, Karl Schwarzschild str. 2, D-85748 Garching, Germany

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Abstract

IRAS 18511+0146 is a young protocluster with a luminosity of ∼104 L☉ and located at a distance of 3.9 kpc. Here, we examine the dust and gas environment in the vicinty of the cluster members using infrared imaging and spectroscopy. Br-γ emission has been investigated using the near infrared spectra. Mid-infrared imaging with VISIR on ESO-VLT shows the presence of diffuse emission close to one of the cluster members which is rich in PAHs.

Fig. 1 Fig. 2


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