Summary
Ultracompact (UC) HII regions with Extended Emission (EE) are classical UC HII regions associated with much larger (>1’) structures of ionized gas. The efforts to investigate, detect, and understand if the EE is physically related with the UC emission are few. If they are related, our understanding of UC HII regions may be affected (e.g., in the estimation of ionizing UV photons). Here we present a brief overview of UC HII regions with EE (UC HII+EE) including our most recent effort aimed at searching for UC HII regions associated with extended emission.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Casoli, F., et al. 1986, A&A, 169, 281
Churchwell, E. 2002, ARA&A, 40, 27
de la Fuente Acosta, E. 2007, Un Estudio Observacional en Radio e Infrarrojo sobre Regiones HII Ultracompactas con Emisión Extendida, Ph. D. Thesis, Universidad de Guadalajara, México
Ellingsen, S. P., Shabala, S. S., & Kurtz, S. 2005, MNRAS, 357, 1003
Fazio, G. G., et al. 2004, ApJS, 154, 10
Heitsch, F., et al. 2007, ApJ, 656, 227
Kim, K. T., & Koo, B. C. 2001, ApJ, 549, 979
Koo, B. C., et al. 1996, ApJ, 456, 662
Kumar, M. S. M., & Grave, J. 2007, A&A, in press
Kurtz, S. 2002, in Hot Star Workshop III, Ultracompact HII regions, vol. 267, ed. P. Crowther (ASP), 81
Kurtz, S., Churchwell, E., & Wood, D. O. S. 1994, ApJS, 91, 659
Kurtz, S., et al. 1999, ApJ, 514, 232
Panagia, N. 1973, AJ, 78, 929
Rodriguez, L. F. 2005, in IAU Symposium 227, Ultracompact HII Regions, vol 1, ed. R. Cesaroni, E. Churchwell, M. Felli & C.M. Walmsley (Berlin Heidelberg New York:Springer), 120
Wood, D.O.S., & Churchwell, E. 1989, ApJS, 69, 831
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Copyright information
© 2009 Springer-Verlag New York
About this paper
Cite this paper
de la Fuente, E. et al. (2009). The Extended Emission of Ultracompact HII Regions: An Overview and New Observations. In: New Quests in Stellar Astrophysics II. Astrophysics and Space Science Proceedings. Springer, New York, NY. https://doi.org/10.1007/978-0-387-87621-4_26
Download citation
DOI: https://doi.org/10.1007/978-0-387-87621-4_26
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-0-387-87620-7
Online ISBN: 978-0-387-87621-4
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)