Zobrazeno 1 - 10
of 199
pro vyhledávání: '"Boehringer, Hans"'
Autor:
Boehringer, Hans, Chon, Gayoung
Publikováno v:
Astronomy and Astrophysics, 656, A144 (2021)
It is important to map the large-scale matter distribution in the local Universe for cosmological studies, such as the tracing of the large-scale peculiar velocity flow, the characterisation of the environment for different astronomical objects, and
Externí odkaz:
http://arxiv.org/abs/2205.07984
Autor:
Chon, Gayoung, Boehringer, Hans, Dasadia, Sarthak, Kluge, Matthias, Sun, Ming, Forman, William R., Jones, Christine
Publikováno v:
A&A 621, A77 2019
The galaxy cluster system RXCJ0225.9-4154 with the two sub-clusters A3016 and A3017 is embedded in a large-scale structure filament with signatures of filamentary accretion. A Chandra observation of this system shows the two clusters as well as a fil
Externí odkaz:
http://arxiv.org/abs/2105.14000
Previous studies of the galaxy and galaxy cluster distribution in the local Universe found indications for a large extension of the Local Supercluster up to a radius of 190 h_70^-1 Mpc. We are using our large and highly complete CLASSIX survey of X-r
Externí odkaz:
http://arxiv.org/abs/2105.13999
Publikováno v:
A&A 651, A16 (2021)
The Perseus-Pisces supercluster is known as one of the largest structures in the nearby Universe that has been charted by the galaxy and galaxy cluster distributions. For the latter mostly clusters from the Abell catalogue have been used. Here we tak
Externí odkaz:
http://arxiv.org/abs/2105.14051
Publikováno v:
A&A 633, A19 (2020)
For precision cosmological studies it is important to know the local properties of the reference point from which we observe the Universe. Particularly for the determination of the Hubble constant with low-redshift distance indicators, the values obs
Externí odkaz:
http://arxiv.org/abs/1907.12402
Autor:
Fukugita, Masataka, Böhringer, Hans
The mass function of galaxies and clusters of galaxies can be derived observationally based on different types of observations. In this study we test if these observations can be combined to a consistent picture which is also in accord with structure
Externí odkaz:
http://arxiv.org/abs/1902.10941
Autor:
Krause, Martin G. H., Shabala, Stanislav S., Hardcastle, Martin J., Bicknell, Geoffrey V., Böhringer, Hans, Chon, Gayoung, Nawaz, Mohammad A., Sarzi, Marc, Wagner, Alexander Y.
Supermassive black hole binaries may be detectable by an upcoming suite of gravitational wave experiments. Their binary nature can also be revealed by radio jets via a short-period precession driven by the orbital motion as well as the geodetic prece
Externí odkaz:
http://arxiv.org/abs/1809.04050
We study the evolution of substructure in the mass distribution with mass, redshift and radius in a sample of simulated galaxy clusters. The sample, containing $1226$ objects, spans the mass range $M_{200} = 10^{14} - 1.74 \times 10^{15} \ {\rm M_{\o
Externí odkaz:
http://arxiv.org/abs/1805.02658
Autor:
Babazaki, Yasunori, Mitsuishi, Ikuyuki, Ota, Naomi, Sasaki, Shin, Boehringer, Hans, Chon, Gayoung, Pratt, Gabriel W., Matsumoto, Hironori
We present analysis results for a nearby galaxy cluster Abell 1631 at $z~=~0.046$ using the X-ray observatory Suzaku. This cluster is categorized as a low X-ray surface brightness cluster. To study the dynamical state of the cluster, we conduct four-
Externí odkaz:
http://arxiv.org/abs/1803.04601
Autor:
Sohn, Jubee, Chon, Gayoung, Böhringer, Hans, Geller, Margaret J., Diaferio, Antonaldo, Hwang, Ho Seong, Utsumi, Yousuke, Rines, Kenneth J.
We apply a friends-of-friends algorithm to the HectoMAP redshift survey and cross-identify associated X-ray emission in the ROSAT All-Sky Survey data (RASS). The resulting flux limited catalog of X-ray cluster survey is complete to a limiting flux of
Externí odkaz:
http://arxiv.org/abs/1712.00029