Journal of Astronomy and Space Sciences

The Korean Space Science Society (한국우주과학회)
권호 표지

ON THE EXTRACTION OF OPTICAL ROTATION CURVES FOR SPIRAL GALAXIES

  • Published : 1998.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

We discussed four different methods - the single, double and triple Gaussian fits, and the intensity weighted centroid fit - which extract rotation curves from several emis-sion lines(i.e. [OII], $H{\beta}$, [OIII], and $H{\alpha}$) of spiral galaxies. Spatial extents and the shapes of rotation curves derived through various methods applying to each emission lines of a sample galaxy UGC 11635 are all in a good agreement with one another. Linewidths of $H{\beta}$ and $H{\alpha}$ measure from rotation profiles are in a good agreement with $H{\alpha}$ linewidth of Courteau (1992). however, linewidths of [OII] seems to be much broader than $H{\alpha}$, and the profile of [OIII] does not follow the profile of $H{\alpha}$.

Keywords

References

  1. Ph.D. thesis, University of California Courteau, S.
  2. AJ v.114 Courteau, S.
  3. The Extragalactic Distance Scale Courteau, S.;Faber, S. M.;S. van den Bergh(ed.);C. Pritchet(ed.)
  4. ApJ v.354 Dressler, A.;Faber, S. M.
  5. ApJ v.462 Forbes, D. A.;Phillips, A. C.;Koo, D. C.;IIIingworth, G.
  6. ApJS v.81 Mathewson, D. S.;Ford, V. L.;Buchhorn, M.
  7. AA v.272 McKeith, C. D.;Castle, J.;Greve, A.;Downes, D.
  8. ApJL v.423 Prada, F.;Beckman, J. E.;McKeith, C. D.;Castle, J.;Greve, A
  9. AJ v.113 Raychaudhury, S.;von Braun, K.;Bernstein, G. M;Guhathakurta, P.
  10. Ph.D. thesis, University of Groningen Rhee, M. H.
  11. ApJ v.305 Rubin, V. C.;Ford, W. K.
  12. Phys. Rep. v.261 Strauss, M. A;Willick, J. A.
  13. MNRAS v.249 Strochi-Bergmann, T.
  14. AA v.54 Tully, R. B.;Fisher, J. R.
  15. ApJL v.465 Vogt, N. P.;Forbes, D. A.;Phiillips, A. C.;Gronwall, C.;Faber, S. M.;IIIingworth, G. D.;Koo, D. C.
  16. ApJL v.415 Vogt, N. P.;Herter, T.;Haynes, M. P.;Cpurteau, S.
  17. ApJL v.479 Vogt, N. P.;Phiillips, A. C.;Faber, S. M.;Gallego, J.;Gronwall, C.;Guzman, R.;IIIingworth, G. D.;Koo, D. C.;Lowenthal, J. D.
  18. ApJ v.420 Zaritskyk, D;Kennicutt, R. C. Jr.;Huchra, J. P.