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| Query : 2016A&A...588L...4L |
2016A&A...588L...4L - Astronomy and Astrophysics, volume 588, L4-4 (2016/4-1)
Discovery of a massive supercluster system at z ∼ 0.47.
LIETZEN H., TEMPEL E., LIIVAMAGI L.J., MONTERO-DORTA A., EINASTO M., STREBLYANSKA A., MARASTON C., RUBINO-MARTIN J.A. and SAAR E.
Abstract (from CDS):
Aims. Superclusters are the largest relatively isolated systems in the cosmic web. Using the SDSS BOSS survey, we search for the largest superclusters in the redshift range 0.43<z<0.71.
Methods. We generate a luminosity-density field smoothed over 8h–1Mpc to detect the large-scale over-density regions. Each individual over-density region is defined as single supercluster in the survey. We define the superclusters so that they are comparable to the superclusters found in the SDSS main survey.
Results. We find a system that we call the BOSS Great Wall (BGW), which consists of two walls with diameters 186 and 173h–1Mpc and two other major superclusters with diameters of 64 and 91h–1Mpc. As a whole, this system consists of 830 galaxies with the mean redshift 0.47. We estimate the total mass to be approximately 2x1017h–1M☉. The morphology of the superclusters in the BGW system is similar to the morphology of the superclusters in the Sloan Great Wall region.
Conclusions. The BGW is one of the most extended and massive systems of superclusters found so far in the Universe.
Methods. We generate a luminosity-density field smoothed over 8h–1Mpc to detect the large-scale over-density regions. Each individual over-density region is defined as single supercluster in the survey. We define the superclusters so that they are comparable to the superclusters found in the SDSS main survey.
Results. We find a system that we call the BOSS Great Wall (BGW), which consists of two walls with diameters 186 and 173h–1Mpc and two other major superclusters with diameters of 64 and 91h–1Mpc. As a whole, this system consists of 830 galaxies with the mean redshift 0.47. We estimate the total mass to be approximately 2x1017h–1M☉. The morphology of the superclusters in the BGW system is similar to the morphology of the superclusters in the Sloan Great Wall region.
Conclusions. The BGW is one of the most extended and massive systems of superclusters found so far in the Universe.
Abstract Copyright: © ESO, 2016
Journal keyword(s): large-scale structure of Universe
Nomenclature: NAME BOSS Great Wall N=1. Figs 3-4: [LTL2016] A (Nos A-D).
Simbad objects: 3
| Number of rows : 3 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | NAME Boss Great Wall | SCG | 10 52 | +52. | ~ | 15 | 0 | |||||
| 2 | NAME Laniakea Supercluster | SCG | ~ | ~ | ~ | 51 | 0 | |||||
| 3 | NAME Sloan Great Wall | ? | ~ | ~ | ~ | 179 | 0 |
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