The INT Photometric H-Alpha Survey
| Alternative names | IPHAS |
|---|---|
| Website | www |
The INT Photometric H-Alpha Survey (IPHAS) is an astronomical survey of the northern plane of our
stars. Observations for the survey began in 2003 and are almost complete. The survey is being complemented by a sister survey of the southern Galactic Plane, VPHAS+.[2]
Once these two surveys are completed the data are expected to provide a significant leap in our knowledge of the extreme phases of stellar evolution.
The goals of the survey include:
- Identification of rare objects that are often characterized by strong emission in H-Alpha compared to that in broad-band filters. This includes massive binary stars and supernovaprogenitors.
- Mapping Galactic nebulosity.
- Identifying compact and extended planetary nebulae and symbiotic stars.
- Cataloging of vast numbers of stars in our Galaxy.
Because of the selection for young stars and nebulae, the survey will also increase the number of known OB associations, and other clusters.
Discoveries
The survey has already discovered a large number of previously unknown
planetary nebulae, such as the Necklace Nebula
in this image.
References
- S2CID 17913846. Retrieved 5 June 2022.
- hdl:10722/209029. Retrieved 5 June 2022.
External links
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