Astronomy and Astrophysics – Astronomy
Scientific paper
May 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...194.0408j&link_type=abstract
American Astronomical Society, 194th AAS Meeting, #04.08; Bulletin of the American Astronomical Society, Vol. 31, p.827
Astronomy and Astrophysics
Astronomy
Scientific paper
Within 10(deg) of the Galactic Plane it is extremely difficult to optically identify galaxies because of extinction from intervening dust, high stellar densities and confusion from Galactic sources. In this region, identifications are biased towards nearby luminous galaxies and sample uniformity is hampered by patchines in the Galactic extinction. To determine a clearer picture of the local distribution of galaxies in the so-called Zone of Avoidance (ZOA), we present some early results from the blind neutral hydrogen (HI) survey of the southern ZOA, carried out using the 21cm multibeam receiver on the Parkes telescope. We have detected about 250 galaxies in a 10(deg) wide strip centred on the Galactic equator, extending from Galactic longitude 300(deg) to 332(deg) , in the velocity range of -1200 to 12700 km s(-1) . The sensitivity limit at the 3sigma level is 25 mJy, with 70% of the detections having no previous identification. The distribution of galaxies confirms the connection between the Centaurus supercluster above the Galactic Plane and the Pavo-Indus supercluster beneath the Plane.
Ekers Ron D.
Green Andrew J.
Haynes Raymond F.
Henning Patricia A.
Juraszek Sebastian
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