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A redshift database towards the Shapley Supercluster region | | Hernan Quintana
; Dominique Proust
; Rolando Dünner
; Eleazar R. Carrasco
; Andreas Reisenegger
; | | Date: |
14 Feb 2020 | | Abstract: | We present a database and velocity catalogue towards the region of the
Shapley Supercluster based on 18,146 measured velocities for 10,719 galaxies in
the approximately 300 square degree area between 12h 43mn 00s < R.A. < 14h 17mn
00s and -23{deg} 30’ 00" < Dec < -38{deg} 30’ 00". The data catalogue
contains velocities from the literature found until 2015. It also includes
5,084 velocities, corresponding to 4,617 galaxies, observed by us at Las
Campanas and CTIO observatories and not reported individually until now. Of
these, 2,585 correspond to galaxies with no other previously published velocity
measurement before 2015. Every galaxy in the velocity database has been
identified with a galaxy extracted from the SuperCOSMOS photometric catalogues.
We also provide a combined average velocity catalogue for all 10,719 galaxies
with measured velocities, adopting the SuperCOSMOS positions as a homogeneous
base. A general magnitude cut-off at R2=18.0 mag was adopted (with exceptions
only for some of the new reported velocities). In general terms, we confirm the
overall structure of the Shapley Supercluster, as found on earlier papers.
However, the more extensive velocity data show finer structure, to be discussed
in a future publication. | | Source: | arXiv, 2002.5977 | | Services: | Forum | Review | PDF | Favorites | |
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