Redshift and velocity dispersion of the cluster of galaxies around NGC 326

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Redshift and velocity dispersion of the cluster of galaxies around NGC 326

Redshifts of several galaxies thought to be associated with NGC 326 are determined. The results confirm the presence of a cluster and find a mean redshift of z = 0.0477 ± 0.0007 and a line-of-sight velocity dispersion σ z = 599 (+230, −110) km s −1. The velocity dispersion and previously measured X-ray gas temperature of kT ≃ 1.9 keV are consistent with the cluster σ z /kT relation, and NGC 326...

متن کامل

Pairwise velocity dispersion of galaxies at high redshift: theoretical predictions

We investigate the feasibility of determining the pairwise velocity dispersion (PVD) for Lyman Break Galaxies(LBGs), and of using this quantity as a discriminator among theoretical models. We find that different schemes of galaxy formation lead to significant changes of the PVD. We propose a simple phenomenological model for the formation of Lyman break galaxies, determined by the formation int...

متن کامل

The velocity and mass distribution of clusters of galaxies from the CNOC1 cluster redshift survey

In the context of the CNOC1 cluster survey, redshifts were obtained for galaxies in 16 clusters. The resulting sample is ideally suited for an analysis of the internal velocity and mass distribution of clusters. Previous analyses of this dataset used the Jeans equation to model the projected velocity dispersion profile. However, the results of such an analysis always yield a strong degeneracy b...

متن کامل

The Proximity Effect Around High Redshift Galaxies

Recent observations have shown that the intergalactic medium (IGM) is more transparent to Lyα photons close to Lyman Break Galaxies (LBGs) than at large distance from them, i.e. a proximity effect. Cosmological simulations including winds from LBGs have been so far unable to explain this trend. By coupling such simulations with the radiative transfer code CRASH, we investigate whether the addit...

متن کامل

The Lyα Forest Around High Redshift Galaxies

Motivated by the relative lack of neutral hydrogen around Lyman Break Galaxies deduced from recent observations, we investigate the properties of the Lyα forest around high redshift galaxies. The study is based on improved numerical SPH simulations implementing, in addition to standard processes, a new scheme for multiphase and outflow physics description. Although on large scales our simulatio...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Monthly Notices of the Royal Astronomical Society

سال: 1999

ISSN: 0035-8711,1365-2966

DOI: 10.1046/j.1365-8711.1999.02677.x