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.

Crédit:

ESO

À propos de l'image

Identification:eso0223c
Type:Observation
Date de publication:23 août 2002
Communiqués de presse en rapport:eso0223
Taille:1206 x 681 px

À propos de l'objet

Nom:NGC 4254
Type:Local Universe : Star : Type : Wolf-Rayet
Local Universe : Nebula : Appearance : Emission : H II Region
Local Universe : Galaxy : Type : Spiral
Distance:50 million années lumière
Catégorie:Galaxies
Nebulae
Stars

Image Formats

Grand JPEG
92,2 Kio

Couleurs & filtres

DomaineTélescope
VisibleVery Large Telescope
FORS1