Bibcode
Drew, J. E.; Lennon, D. J., Greimel, R.; Zijlstra, A.; Irwin, J.; Aungwerowijt, A.; Barlow, M. J.; Corradi, R.; Evans, C. J.; Gaensicke, B.; Groot, P.; Hales, A.; Hopewell, E.; Irwin, M. J.; Jaigirdar, M.; Knigge, C.; Leisy, P.; Mampaso, A.; Matsuura, M.; Morales Rueda, L.; Morris, R.; Parker, Q. A.; Phillipps, S.; Rodríguez Gil, P.; Roelofs, G.; Skillen, I.; Steeghs, D.; Unruh, Y. C.; Viironen, K.; Vink, J.; Walton, N. A.; Witham, A.; Wright, N.; Zurita, A.
Bibliographical reference
The Newsletter of the Isaac Newton Group of Telescopes (ING Newsl.), issue no. 9, p. 3-7.
Advertised on:
3
2005
Citations
1
Refereed citations
0
Description
H-alpha emission is ubiquitous in our Galaxy. It traces ionised gas of
assorted nebulae such as HII regions, planetary nebulae, Wolf-Rayet
nebulae, and supernova remnants. It is a strong signature of active
stars, interacting binaries, very massive stars (especially supergiants,
Luminous Blue Variables and Wolf-Rayet stars), Be stars, post-AGB stars,
pre-main-sequence stars and so on. These objects represent important
evolutionary phases which are generally short lived, and are hence few
in number and difficult to find. Their discovery is therefore well worth
the effort of a concerted programme and in August 2003 a major new
survey project was started using the Wide Field Camera (WFC) on the
Isaac Newton Telescope (INT) to do just that. It is called the INT
Photometric H-alpha Survey of the Northern Galactic Plane, or IPHAS for
short.