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18 April 2024 |
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The Southern Sky Redshift Survey | | L. Nicolaci da Costa
; C. N. A. Willmer
; P.S. Pellegrini
; O. L. Chaves
; C. Rite
; M. A. G. Maia
; M. J. Geller
; D. W. Latham
; M. J. Kurtz
; J. P. Huchra
; M. Ramella
; A. P. Fairall
; C. Smith
; S. Lipari
; | | Date: |
6 Apr 1998 | | Subject: | astro-ph | | Abstract: | We report redshifts, magnitudes and morphological classifications for 5369 galaxies with $m_B leq 15.5$ and 57 galaxies fainter than this limit, in two regions covering a total of 1.70 steradians in the southern celestial hemisphere. The galaxy catalog is drawn primarily from the list of non-stellar objects identified in the Guide Star Catalog (Lasker et al. 1990, AJ 99, 2019; hereafter GSC). The galaxies have positions accurate to about 1 arc sec and magnitudes with an rms scatter of about 0.3 mag. We compute magnitudes ($m_{SSRS2}$) from the relation between instrumental GSC magnitudes and the photometry by Lauberts & Valentijn (1989). From a comparison with CCD photometry, we find that our system is homogeneous across the sky and corresponds to magnitudes measured at the isophotal level $sim$ 26 mag arcsec$^{-2}$. The precision of the radial velocities is of sim 40 km/s and the redshift survey is more than 99% complete to the $m_{SSRS2}$ = 15.5 magnitude limit. This sample is in the direction opposite to the CfA2; in combination the two surveys provide an important database for studies of the properties of galaxies and their large-scale distribution in the nearby Universe. | | Source: | arXiv, astro-ph/9804064 | | Services: | Forum | Review | PDF | Favorites | |
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