by kjardine » Tue Jun 30, 2009 5:50 am
The caption says "It is still unknown which star or stars ionize the red-glowing hydrogen gas". This was identified in 2005 as the heavily obscured O5 V star 2MASS J205551.25+435224.6, which lies behind the LDN 935 dark cloud that appears to separate the North American nebula from the Pelican nebula.
See:
http://adsabs.harvard.edu/cgi-bin/nph-b ... .430..541C
So I think that this caption needs to be updated.
Cheers,
Kevin
Kevin Jardine
Galaxy Map
http://galaxymap.org
The caption says "It is still unknown which star or stars ionize the red-glowing hydrogen gas". This was identified in 2005 as the heavily obscured O5 V star 2MASS J205551.25+435224.6, which lies behind the LDN 935 dark cloud that appears to separate the North American nebula from the Pelican nebula.
See:
http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2005A%26A...430..541C
So I think that this caption needs to be updated.
Cheers,
Kevin
Kevin Jardine
Galaxy Map
http://galaxymap.org