Hubble showed us details of planets and asteroids close to home, and JWST will give a closer look, though it’s still better to send a visiting robot if we can.” Basically, the JWST will be able to see farther back to about 100 million years after the Big Bang, when the first ...
= 0.2 to z = 2 these effects work to give us a S/N boost of a factor of 30 and make the high-redshift regime accessible to small space telescopes. 2 The Baryon Oscillation Probe During discussions at Johns Hopkins in 2003–2004 we developed a strawman concept for a MIDEX class ...
Combining the Hubble Space Telescope Advanced Camera for Surveys (HST/ACS), Hubble Space Telescope Wide Field Camera 3 (HST/WFC3) and JWST/NIRCam datasets, we carefully measured ceers-2112 photometry and derived that the galaxy has a photometric redshift of\({z}_{{\rm{phot}}}={3.03}_{-...
Archival Hubble Space Telescope Advanced Camera for Surveys imaging shows evidence for tidal disruption of the stellar component. This V = 27 galaxy appears to give us unprecedented insight into two fundamental stages in the formation of structure at high redshift: the inflow of gas into ordinary ...
cwolf@astro.ox.ac.uk Received 20 January 2006 / Accepted 28 April 2006 ABSTRACT Context. Wide-field narrowband surveys are an efficient way of searching large volumes of high-redshift space for distant galaxies. Aims. We describe the Wide Field Imager Lyman-Alpha Search (WFILAS) over 0....
However, the high intrinsic dispersion of this sample and the degeneracy between cosmological model parameters, we added 2D-BAO and 3D-BAO datasets to help us constrain the parameters of these cosmological models. Our results suggest that standard cold dark matter scenario may not be the best ...
2015-06-09上传 Self-Absorption of Ionizing Radiation and Extended Lyman Alpha Emission in High- Redshift Q 文档格式: .pdf 文档大小: 153.65K 文档页数: 15页 顶/踩数: 0/0 收藏人数: 0 评论次数: 0 文档热度: 文档分类: 待分类 文档标签: ...
Confirmed AGN without high host influence (see main text) that show a measurement on the surveys used in this work, are presented in purple, clean histogram. One important feature to note in Figure 2b is the distribution of radio-detected sources (i.e., sources which show a counterpart ...
On the other hand, we can consider observations from recent surveys to constrain the impact of this degeneracy through truncation of the Taylor series. In this way, we can use the luminosity distance relation to relate cosmographic parameters with observational data. In this context, we consider ...
This implies that the oldest SMBHs observed today give powerful constraints on the very early phases. Keywords: dark matter; ultra faint dwarf galaxies; early shock waves; super-massive black holes1. Introduction Dark matter (DM) has been with us since Zwicky noted its presence in clusters of...