Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Nebular spectroscopy of dwarf irregular galaxies in nearby groups
2005 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

A number of dwarf irregular galaxies have been selected in the three most nearby groups of galaxies: the M81, Centaurus A, and Sculptor groups. The final objective is to establish whether there is a relationship between the luminosity and the fraction of oxygen contained in dwarf irregular galaxies and for that homogeneous oxygen abundances and near-IR luminosities are being collected. By comparison of observations from different groups at considerably different interaction rates we are hoping to clear up the debated luminosity-metallicity assumption for the case of dwarf irregular galaxies. We have reduced, measured and analysed optical spectra of HII regions of five dwarf irregular galaxies in the Sculptor group. Fluxes are measured and corrected from reddening and electron temperatures and homogeneous chemical abundances are obtained. The oxygen abundances normalised to hydrogen are estimated with calculations that ranges between 2×10-5 and 33×10-5. The empirical method based on R23 is also applied. We are now presenting the results for the Sculptor group.

Place, publisher, year, edition, pages
2005.
Keyword [en]
Physics Chemistry Maths, Astrofysik, astronomi
Keyword [sv]
Fysik, Kemi, Matematik
Identifiers
URN: urn:nbn:se:ltu:diva-46365ISRN: LTU-EX--05/324--SELocal ID: 3ff1a9f0-d675-497d-b1f5-9b585977479eOAI: oai:DiVA.org:ltu-46365DiVA: diva2:1019679
Subject / course
Student thesis, at least 30 credits
Educational program
Space Engineering, master's level
Examiners
Note
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

Open Access in DiVA

fulltext(970 kB)13 downloads
File information
File name FULLTEXT01.pdfFile size 970 kBChecksum SHA-512
5a8c257693eb1b786f3f86a64d8b91d2dc92972a5758b6805db7fd6b0826bb1e5d3bc2ab273f5bd0d29f598e5214e567d5b429a7e88743a8e982cd4972c3eb66
Type fulltextMimetype application/pdf

Search outside of DiVA

GoogleGoogle Scholar
Total: 13 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 7 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf