Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ap.....38..335p&link_type=abstract
Astrophysics, Volume 38, Issue 4, pp.335-342
Astronomy and Astrophysics
Astrophysics
1
Scientific paper
We present the observations of the BCDG IZW18 performed with a Fabry-Perot interferometer at the CFH 3.6 m telescope and with a multi-pupil spectrograph at the SAO (Russia) 6 m telescope. The morphological structure of the galaxy in emission lines and in continuum, the velocity field of the ionized gas, and [OIII]/H β ratio distribution along the NW component have been investigated. Besides the NW and SE HII components, we find a population of small HII regions. Continuum maps show that the peaks of the stellar light distribution are displaced with respect to the emission lines maxima. the velocity field shows peculiar motions superposed on an approximately regular background implying solid body rotation. Emission line profiles exhibit an asymmetric structure, except for the NW compact component. The [OIII]/H β ratio decreases from the center of the NW component to its edge with the gradient of 1.86 kpc-1.
Boulesteix Jacques
Burenkov Alexander
Comte Georges
Dodonov Serguei
Kunth Daniel
No associations
LandOfFree
High resolution fabry-perot and multi-pupil spectral observations of the genuine blue compact dwarf galaxy IZW18 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with High resolution fabry-perot and multi-pupil spectral observations of the genuine blue compact dwarf galaxy IZW18, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High resolution fabry-perot and multi-pupil spectral observations of the genuine blue compact dwarf galaxy IZW18 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1352347