A study of the galaxy redshift distribution toward the cosmic microwave background cold spot in the Corona Borealis supercluster

Details A study of the galaxy redshift distribution toward the cosmic microwave background cold spot in the Corona Borealis supercluster A study of the galaxy redshift distribution toward the cosmic microwave background cold spot in the Corona Borealis supercluster

2009-12-28

arxiv.org/abs/0912.5167v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

11 pages, 5 figures, 3 tables. Accepted in MNRAS

Scientific paper

We present a study of the spatial and redshift distributions of Sloan Digital Sky Survey (SDSS) galaxies toward the position of CrB-H, a very deep and extended decrement in the Cosmic Microwave Background (CMB), located within the Corona Borealis supercluster (CrB-SC). It was found in a survey with the Very Small Array (VSA) interferometer at 33 GHz, with a peak negative brightness temperature of -230 muK, and deviates 4.4-sigma from the Gaussian CMB (G\'enova-Santos et al.). Observations with the Millimeter and Infrared Testa Grigia Observatory (MITO) suggested that 25$^+21_-18% of this decrement may be caused by the thermal Sunyaev-Zel'dovich (tSZ) effect (Battistelli et al.). Here we investigate whether the galaxy distribution could be tracing either a previously unnoticed galaxy cluster or a Warm/Hot Intergalactic Medium (WHIM) filament that could build up this tSZ effect. We find that the projected density of galaxies outside Abell clusters and with redshifts 0.05

Affiliated with

Also associated with

No associations

Rating

A study of the galaxy redshift distribution toward the cosmic microwave background cold spot in the Corona Borealis supercluster does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A study of the galaxy redshift distribution toward the cosmic microwave background cold spot in the Corona Borealis supercluster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A study of the galaxy redshift distribution toward the cosmic microwave background cold spot in the Corona Borealis supercluster will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-91879