Spectrum of HII region -014+081 in NGC 4254

Eso_eso0223c_1024

eso_eso0223c August 23rd, 2002

Credit: ESO

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.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso0223c/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

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Image Details Image Details

Image Type
Observation
Object Name
NGC 4254
Subject - Local Universe
Star > Type > Wolf-Rayet
Nebula > Appearance > Emission > H II Region
Galaxy > Type > Spiral

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Grayscale VLT (FORS1) Optical -
Eso_eso0223c_1280
×
ID
eso0223c
Subject Category
C.3.2.4   C.4.2.1.1   C.5.1.1  
Subject Name
NGC 4254
Credits
ESO
Release Date
2002-08-23T00:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0223c/
Type
Observation
Image Quality
Distance Notes
Distance in light years from NED
Facility
Very Large Telescope
Instrument
FORS1
Color Assignment
Grayscale
Band
Optical
Bandpass
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
1206.0, 681.0
Reference Pixel
Scale
Rotation
Coordinate System Projection:
Quality
FITS Header
Notes
Creator (Curator)
European Southern Observatory
URL
http://www.eso.org/
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
European Southern Observatory
Publisher ID
eso
Resource ID
eso0223c
Resource URL
https://www.eso.org/public/archives/images/original/eso0223c.tif
Related Resources
Metadata Date
2010-02-26T16:36:46+01:00
Metadata Version
1.1
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