A Redshift Survey for Galaxies behind the Milky Way near the Galactic Center

Astronomy and Astrophysics – Astronomy

Scientific paper

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Galaxies: General, Galaxies: Large-Scale Structure, Galaxies: Milky Way, Galaxies: Redshift

Scientific paper

The galaxy search at the region near the galactic center is still highly incomplete. This paper presents results of our redshift measurements for a random sample of galaxies and galaxy candidates at l =~ 18(deg) to 41(deg) and b =~ -17(deg) to 17(deg) , most of which were newly identified through our previous optical search. We have obtained 78 new radial velocities, and found two regions with enhanced density at around l =~ 32(deg) , cz =~ 1500 km s(-1) and at l =~ 30(deg) to 40(deg) , cz =~ 6000 to 7000 km s(-1) . Our data rule out the possible presence of a nearby large void at the region cz < 6000 km s(-1) around l= 30(deg) , which has been induced from the results of a systematic search for IRAS galaxies.

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