Issue |
A&A
Volume 434, Number 3, May II 2005
|
|
---|---|---|
Page(s) | 887 - 894 | |
Section | Extragalactic astronomy | |
DOI | https://doi.org/10.1051/0004-6361:20041401 | |
Published online | 18 April 2005 |
HI-observations of blue compact dwarf galaxies
1
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany e-mail: huchtmeier@mpifr-bonn.mpg.de
2
NCRA-TIFR, Pune University Campus, Pune – 411 007, India e-mail: krishna@ncra.tifr.res.in
3
Byurakan Astrophysical Observatory and Isaac Newton Institute of Chile, Armenian Branch, Byurakan – 378433, Armenia e-mail: artptrs@yahoo.com
Received:
3
June
2004
Accepted:
7
January
2005
We present HI-observations of 56 blue compact dwarf (BCD) galaxies
of which 44 have been detected in the 21-cm line from
neutral hydrogen with the 100-m radiotelescope at Effelsberg.
Optical data (e.g., from NED) and HI data from other observers and
telescopes are used to estimate the likelihood of confusion from
other galaxies within the Effelsberg beam. The selected 29 BCD galaxies without
any sign of confusion are used to infer several characteristic
properties of the BCD galaxy population. In some respects, they
resemble normal galaxies: e.g., the relations between global parameters
like linear diameter A0 versus blue luminosity LB and
the /LB ratio vs. LB. At least five of these BCDGs
emit milli-Jansky level radio continuum emission.
Key words: galaxies: dwarf / galaxies: evolution / galaxies: fundamental parameters
© ESO, 2005
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.