pptx
... Edwin Hubble measured distances to Slipher’s galaxies. He found that galaxies with higher velocities away from us (higher redshifts) have larger distances from us. This correlation between distance and velocity is known as the Hubble Law. ...
... Edwin Hubble measured distances to Slipher’s galaxies. He found that galaxies with higher velocities away from us (higher redshifts) have larger distances from us. This correlation between distance and velocity is known as the Hubble Law. ...
FINAL PROGRAM - Drifting through the Cosmic Web
... (Poster) From Galaxies to Halos: Tracking the Evolution of the Most Massive Galaxies in the Universe and Exploring the Intrinsic Halo-Galaxy Connection using BOSS ...
... (Poster) From Galaxies to Halos: Tracking the Evolution of the Most Massive Galaxies in the Universe and Exploring the Intrinsic Halo-Galaxy Connection using BOSS ...
Word
... We can now begin to test directly the growth of density fluctuations in the Universe using our observations of the temperature variations of the microwave background. Any density variations that were present 100,000 years after the Big Bang will produce (through a number of different mechanisms that ...
... We can now begin to test directly the growth of density fluctuations in the Universe using our observations of the temperature variations of the microwave background. Any density variations that were present 100,000 years after the Big Bang will produce (through a number of different mechanisms that ...
Frontiers of Astronomy. Fred Hoyle. The Expanding Universe
... have been distributed lopsidedly without large scale uniformity, but it isn't because it wasn't created that way. Indeed the Universe might have been created in any of an infinity of other ways but it wasn't. It was created to have just the properties of expansion and of uniformity that we observe. ...
... have been distributed lopsidedly without large scale uniformity, but it isn't because it wasn't created that way. Indeed the Universe might have been created in any of an infinity of other ways but it wasn't. It was created to have just the properties of expansion and of uniformity that we observe. ...
Star Formation Efficiency VS Environment
... Screen shot of the ADRIC program showing 15’ SuperCOSMOS field centred on a HICAT source, with published velocities in red, blue ellipses from SExtractor catalogue (selected galaxy in purple). The buttons classify the selected optical counterpart (allowing cases of poor photometry due to merged obje ...
... Screen shot of the ADRIC program showing 15’ SuperCOSMOS field centred on a HICAT source, with published velocities in red, blue ellipses from SExtractor catalogue (selected galaxy in purple). The buttons classify the selected optical counterpart (allowing cases of poor photometry due to merged obje ...
N j
... parameters, with the proposal distribution chosen to match final posterior distribution shape, e.g., often a Gaussian is used since in many cases the final posterior is also close to Gaussian. Can be very inefficient (and hence require a very large number of draws), especially if some model paramete ...
... parameters, with the proposal distribution chosen to match final posterior distribution shape, e.g., often a Gaussian is used since in many cases the final posterior is also close to Gaussian. Can be very inefficient (and hence require a very large number of draws), especially if some model paramete ...
The behaviour of dark matter associated with 4 bright cluster
... (labelled A in figure 1) was originally identified in Gemini imaging by Carrasco et al. (2010), who also used long-slit Gemini spectroscopy to obtain a redshift z = 0.204. However, our IFU spectroscopy did not confirm this. We instead found only one bright emission line at 835.5 nm, which is not ass ...
... (labelled A in figure 1) was originally identified in Gemini imaging by Carrasco et al. (2010), who also used long-slit Gemini spectroscopy to obtain a redshift z = 0.204. However, our IFU spectroscopy did not confirm this. We instead found only one bright emission line at 835.5 nm, which is not ass ...
Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping
... angles preferably occur on less relax clusters, while the receding galaxies are observed frequently on relax clusters. In the z = 0 EAGLE Universe, the largest differences were measured considering the most massive groups (i.e., 1013.8 M ). Yet, the differences in SFR are small, lower than ∼ 1 M y ...
... angles preferably occur on less relax clusters, while the receding galaxies are observed frequently on relax clusters. In the z = 0 EAGLE Universe, the largest differences were measured considering the most massive groups (i.e., 1013.8 M ). Yet, the differences in SFR are small, lower than ∼ 1 M y ...
Weak gravitational lensing
While the presence of any mass bends the path of light passing near it, this effect rarely produces the giant arcs and multiple images associated with strong gravitational lensing. Most lines of sight in the universe are thoroughly in the weak lensing regime, in which the deflection is impossible to detect in a single background source. However, even in these cases, the presence of the foreground mass can be detected, by way of a systematic alignment of background sources around the lensing mass. Weak gravitational lensing is thus an intrinsically statistical measurement, but it provides a way to measure the masses of astronomical objects without requiring assumptions about their composition or dynamical state.