Abstract
view Abstract Citations (51) References (38) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Nitrogen Abundances in the Amorphous Galaxy NGC 5253 Walsh, Jeremy R. ; Roy, Jean-Rene Abstract The central complex of ionized gas in the amorphous galaxy NGC 5253 was scanned with the slit of the RGO spectrograph using the imaging spectroscopy system of the Anglo-Australian Telescope. Monochromatic images corresponding to several nebular lines were obtained with a spatial resolution of 2.3 x 1.3 sq arcsec (1 pixel). The very high signal-to-noise ratio of the spectra allowed the measurements of the electron temperature over 78 pixels using the line ratio forbidden O III (4959+5007)/4363 and hence abundances of O, N, He, and Ne. A region of high values of log N/O was found to correspond with the presence of a cluster of Wolf-Rayet stars. Other areas of the gas complex show the normal deficiency in log N/O for this type of object, and no Wolf-Rayet feature is detected. There is an anticorrelation between log N/O versus log O/H, a trend which is not clearly consistent with any existing nucleosynthesis scenario for the origin of nitrogen in low metallicity galaxies. Publication: The Astrophysical Journal Pub Date: August 1987 DOI: 10.1086/184954 Bibcode: 1987ApJ...319L..57W Keywords: Abundance; Interstellar Gas; Ionized Gases; Nitrogen; Galactic Clusters; H Ii Regions; Nuclear Energy; Spatial Resolution; Stellar Coronas; Stellar Winds; Wolf-Rayet Stars; Astrophysics; GALAXIES: INDIVIDUAL NGC NUMBER: NGC 5253; NEBULAE: ABUNDANCES; NEBULAE: H II REGIONS full text sources ADS | data products SIMBAD (1) NED (1)
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
