Spectrum of HII region -014+081 in NGC 4254
Observational evidence of the presence of hot and massive "Wolf-Rayet" stars in a metal-rich H II region (designated "-014+081") in the spiral galaxy NGC 4254, a member of the Virgo cluster of galaxies at a distance of about 50 million light-years. Comparison spectra of two types of Wolf-Rayet stars (WC and WN) in the Milky Way galaxy are shown. The characteristic spectral features of ionized helium (He II) and double and triple ionized carbon (C III, C IV) are identical.
Credit:
ESO
About the Image
| Id: | eso0223c |
| Type: | Chart |
| Release date: | 23 August 2002 |
| Related releases: | eso0223 |
| Size: | 1206 x 681 px |
About the Object
| Name: | NGC 4254 |
| Type: | • Local Universe : Star : Type : Wolf-Rayet • Local Universe : Nebula : Appearance : Emission : H II Region • Local Universe : Galaxy : Type : Spiral • X - Nebulae • X - Galaxies • X - Stars |
| Distance: | 50 million light years |
Colours & filters
| Band | Telescope |
| Optical | Very Large Telescope FORS1 |
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