Mid-Infrared Images of the Star Forming Region GGD14

Persi, Paolo; Tapia, Mauricio
Bibliographical reference

Star Formation at High Angular Resolution, International Astronomical Union. Symposium no. 221, held 22-25 July, 2003 in Sydney, Australia, Poster meeting abstract

Advertised on:
0
2003
Number of authors
2
IAC number of authors
0
Citations
0
Refereed citations
0
Description
Mid-IR images at 8.7 9.7 and 12.5 µm are presented of the star forming region GGD14 associated with the IRAS source 06084-0611. In an area of ˜30arcsec around the IRAS position we have found two mid-IR sources identified with the cometary compact HII region VLA1 and with the faint and unresolved radio continuum source VLA4. The mid-IR morphology of VLA1 is very similar to that of the radio continuum suggesting a direct interaction between the ionized gas and dust. The IR source associated with VLA4 shows a consistent IR excess and the derived infrared luminosity L1-20=350 Lsun indicates the presence of a young star later than B3 ionizing the hypercompact HII region. In addition its spectrum between 2.47 and 11.62 µm observed by ISOPHOT shows the presence of the infrared emission bands at 3.3 6.2 ”7.7” 8.6 and 11.2 µm with relative intensity ratios typical of compact HII regions. Finally the radio continuum source VLA2 present in the field and not detected in our mid-IR images shows an infrared luminosity of ˜8.5Lsun confirming the nature of embedded T-Tauri star