Search and redshift survey for IRAS galaxies behind the milky way and structure of the local void

Kouichiro Nakanishi, Tadafumi Takata, Toru Yamada, Tsutomu T. Takeuchi, Ryuichi Shiroya, Morio Miyazawa, Shigeo Watanabe, Mamoru Saito

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

This is the third and final paper of our systematic visual search for IRAS galaxies behind the Milky Way at |b| ≤ 15°. This paper presents a catalog of 950 IRAS galaxies with 60 μm flux densities larger than 0.6 Jy located between l = 0° and 150°, of which 293 are newly identified by this search. We made a redshift survey for the identified galaxies and obtained new redshift data of 171 galaxies. We also present newly measured redshifts of 27 IRAS galaxies between l = 150° and 225° at |b| ≤ 15°. In this paper we studied the structure of the Local void using IRAS galaxies and galaxies from the Third Reference Catalogue of Bright Galaxies in the region l = 30°-120° and b =: -50° to +30°. The center of the Local void turned out to be located at l ∼ 60°, b ∼ -15°, and cz ∼ 2500 km s-1, and the size is about 2500 km s-1 along the direction toward the center.

Original languageEnglish
Pages (from-to)245-270
Number of pages26
JournalAstrophysical Journal, Supplement Series
Volume112
Issue number2
DOIs
Publication statusPublished - 1997 Oct

Keywords

  • Catalogs
  • Infrared: galaxies
  • Large-scale structure of universe
  • Surveys

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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