Star Formation in the Eagle Nebula and NGC 6611

Oliveira, J. M.; Jeffries, R. D.; van Loon, J. Th

Abstract

We present IZJHKL' photometry of the core of the cluster NGC 6611 in the Eagle Nebula. This photometry is used to constrain the Initial Mass Function (IMF) and the circumstellar disk frequency of the young stellar objects. Optical spectroscopy of 258 objects is used to confirm membership and constrain contamination as well as individual reddening estimates. Our overall aim is to assess the influence of the ionizing radiation from the massive stars on the formation and evolution of young low-mass stars and their disks. The disk frequency determined from the JHKL' colour-colour diagram suggests that the ionizing radiation from the massive stars has little effect on disk evolution (Oliveira et al. 2005). The cluster IMF seems indistinguishable from those of quieter environments; however towards lower masses the tell-tale signs of an environmental influence are expected to become more noticeable, a question we are currently addressing with our recently acquired ultra-deep (ACS and NICMOS) HST images.

Citation

Oliveira, J. M., Jeffries, R. D., & van Loon, J. T. (2006). Star Formation in the Eagle Nebula and NGC 6611. Proceedings of the International Astronomical Union, 2(S237), https://doi.org/10.1017/S1743921307002487

• Journal Article Type: Conference Paper
• Conference Name: Triggered Star Formation in a Turbulent ISM
• Online Publication Date: Aug 1, 2006
• Publication Date: Aug 1, 2006
• Deposit Date: Jul 7, 2023
• Publicly Available Date: Jul 7, 2023
• Journal: Proceedings of the International Astronomical Union
• Print ISSN: 1743-9213
• Electronic ISSN: 1743-9221
• Publisher: Cambridge University Press
• Peer Reviewed: Peer Reviewed
• Volume: 2
• Issue: S237
• DOI: https://doi.org/10.1017/S1743921307002487
• Keywords: Astrophysics; stars: pre–main-sequence; stars: luminosity function, mass function; stars: formation; circumstellar matter