LIGO SURF 2006 Lecture 1 - Indico
... Quasar image appears around the central glow formed by nearby galaxy. Such gravitational lensing images are used to detect a ‘dark matter’ body as the central object ...
... Quasar image appears around the central glow formed by nearby galaxy. Such gravitational lensing images are used to detect a ‘dark matter’ body as the central object ...
1 The Hubble Story (10:56)
... galaxies enables scientists to investigate the influence of different environments on the lives of stars. These are crucial data that allow us to extend our understanding of the Milky Way galaxy to other galaxies. Hubble uses its exceptionally sharp focus to reveal changes on cosmic scales over peri ...
... galaxies enables scientists to investigate the influence of different environments on the lives of stars. These are crucial data that allow us to extend our understanding of the Milky Way galaxy to other galaxies. Hubble uses its exceptionally sharp focus to reveal changes on cosmic scales over peri ...
Dark Matter: A Brief Review
... This candidate class has the additional feature that it may “naturally” make up all the dark matter, thus making it more “Black Friday sale” dark matter than the “buy one, get one free” candidate. This feature of WIMPs is called the “WIMP miracle”. The origin of the WIMP miracle is this. If WIMPs ar ...
... This candidate class has the additional feature that it may “naturally” make up all the dark matter, thus making it more “Black Friday sale” dark matter than the “buy one, get one free” candidate. This feature of WIMPs is called the “WIMP miracle”. The origin of the WIMP miracle is this. If WIMPs ar ...
Planck 2013 results. XXVI. Background geometry and topology of
... scattering available to date. This allows us to detect possible departures from the standard model of a globally homogeneous and isotropic cosmology on the largest scales. We search for correlations induced by a possible non-trivial topology with a fundamental domain intersecting, or nearly intersec ...
... scattering available to date. This allows us to detect possible departures from the standard model of a globally homogeneous and isotropic cosmology on the largest scales. We search for correlations induced by a possible non-trivial topology with a fundamental domain intersecting, or nearly intersec ...
arXiv:astro-ph/9510089 v1 17 Oct 95
... In conclusion, the observational evidence for large amounts of dark matter on galactic halo scales is overwhelming. On larger scales, the observational evidence for Ω in the 0.1 to 0.2 range is strong. On the largest scales, substantial observational evidence exists for Ω > 0.3, and some evidence fo ...
... In conclusion, the observational evidence for large amounts of dark matter on galactic halo scales is overwhelming. On larger scales, the observational evidence for Ω in the 0.1 to 0.2 range is strong. On the largest scales, substantial observational evidence exists for Ω > 0.3, and some evidence fo ...
eXtremely Fast Tr
... pion production. Subsequently, any proton or nucleus with a travel distance from its origin to the Earth of more than around 50 Mpc suffers severe energy losses, and independent of the original energy will end up with an energy below the GZK cutoff energy. The AGASA cosmic ray experiment has found t ...
... pion production. Subsequently, any proton or nucleus with a travel distance from its origin to the Earth of more than around 50 Mpc suffers severe energy losses, and independent of the original energy will end up with an energy below the GZK cutoff energy. The AGASA cosmic ray experiment has found t ...
Introduction to Observational Cosmology
... The basic pillars of our cosmological picture (i.e. we are starting with the answer first) 1. Averaged over sufficiently large scales, the universe is nearly homogeneous and isotropic (=cosmological principle) 2. The universe, i.e. space itself, is expanding so that the distance D between any pairs ...
... The basic pillars of our cosmological picture (i.e. we are starting with the answer first) 1. Averaged over sufficiently large scales, the universe is nearly homogeneous and isotropic (=cosmological principle) 2. The universe, i.e. space itself, is expanding so that the distance D between any pairs ...
course objectives - Metropolitan Community College
... COURSE DESCRIPTION: This course is an introductory course in astronomy that covers the tools of astronomy, the night sky, the solar system, stars and star systems, galaxies, and cosmology. This is a lecture-only course. The lab course that complements this course is SCIE 1310. ...
... COURSE DESCRIPTION: This course is an introductory course in astronomy that covers the tools of astronomy, the night sky, the solar system, stars and star systems, galaxies, and cosmology. This is a lecture-only course. The lab course that complements this course is SCIE 1310. ...
Stellar Metamorphosis
... therefore these stars should not be separate, but should have combined into a single larger star. It is suggested to the reader to realize that gravity theory is a failed theory [13] as it is not a force [14] and cannot accrete material what so ever. [15][16] These stars simply formed in different a ...
... therefore these stars should not be separate, but should have combined into a single larger star. It is suggested to the reader to realize that gravity theory is a failed theory [13] as it is not a force [14] and cannot accrete material what so ever. [15][16] These stars simply formed in different a ...
Slide 1
... Lecture – Different atoms Different light… • Nuclear Physics and Chemistry Different TYPES of Atoms • Studying the Stars using their light – Spectral lines of the atoms ...
... Lecture – Different atoms Different light… • Nuclear Physics and Chemistry Different TYPES of Atoms • Studying the Stars using their light – Spectral lines of the atoms ...
Summary - X-ray Astronomy Group at ISAS
... Majority of AGN in the universe do not have strong optical lines or bright optical nuclei– XMM and Chandra deep fields Serious difference between optical and x-ray classification schemes (SAX, XMM and Chandra serendipitous sources) X-ray selected AGN evolve very differently than optically selected o ...
... Majority of AGN in the universe do not have strong optical lines or bright optical nuclei– XMM and Chandra deep fields Serious difference between optical and x-ray classification schemes (SAX, XMM and Chandra serendipitous sources) X-ray selected AGN evolve very differently than optically selected o ...
previous lectures - Gwynedd Astronomy Society
... NASA bulletins on the Internet SOS for the Earth / Missing mass Deep sky objects Titan Dark matter Shareware - Our Cosmohood / Skyglobe History of astronomy Optical devices in astronomy The use of red light in astronomy CDROM - A guide to ERS-1 Binocular observation Extinction of the dinosaurs ESA p ...
... NASA bulletins on the Internet SOS for the Earth / Missing mass Deep sky objects Titan Dark matter Shareware - Our Cosmohood / Skyglobe History of astronomy Optical devices in astronomy The use of red light in astronomy CDROM - A guide to ERS-1 Binocular observation Extinction of the dinosaurs ESA p ...
REVIEW Early star-forming galaxies and the reionization of the Universe
... medium (IGM), into an ionized state. Neutral hydrogen first formed 370,000 years after the Big Bang and released the radiation presently observed as the cosmic microwave background (CMB)1. Initially devoid of sources of light, the Universe then entered a period termed the ‘Dark Ages’2, which lasted ...
... medium (IGM), into an ionized state. Neutral hydrogen first formed 370,000 years after the Big Bang and released the radiation presently observed as the cosmic microwave background (CMB)1. Initially devoid of sources of light, the Universe then entered a period termed the ‘Dark Ages’2, which lasted ...
FREE Sample Here
... changed his graduate study plans from biophysics to astrophysics as a result of watching the series.) Thus, while the series does not correspond directly to the textbook, it makes an outstanding resource for reinforcing key ideas. There are at least two basic ways in which you can use the Cosmos ser ...
... changed his graduate study plans from biophysics to astrophysics as a result of watching the series.) Thus, while the series does not correspond directly to the textbook, it makes an outstanding resource for reinforcing key ideas. There are at least two basic ways in which you can use the Cosmos ser ...
Hidden57_rf
... the narrow band of light that could penetrate the Earth’s atmosphere and was visible to our eyes or to sensitive photographic plates loaded at the focus of increasingly large telescopes. With these resources alone, the discoveries were still stupendous: the mapping of our Solar System, the identific ...
... the narrow band of light that could penetrate the Earth’s atmosphere and was visible to our eyes or to sensitive photographic plates loaded at the focus of increasingly large telescopes. With these resources alone, the discoveries were still stupendous: the mapping of our Solar System, the identific ...
Chapter 17 - Astronomy
... (e.g., planets, brown dwarfs, very old white dwarfs, etc.) (ii) Hot dark matter; neutrinos and other exotic particles (introduced by theories but not observed yet) moving at very high speeds (iii) Black holes (iv) Cold dark matter; an exotic form of matter, moving at relatively slow speed, which can ...
... (e.g., planets, brown dwarfs, very old white dwarfs, etc.) (ii) Hot dark matter; neutrinos and other exotic particles (introduced by theories but not observed yet) moving at very high speeds (iii) Black holes (iv) Cold dark matter; an exotic form of matter, moving at relatively slow speed, which can ...
Lecture 2 Astronomical Distances
... Largely due to Milky Way (Local Group) falling toward Virgo Cluster. ...
... Largely due to Milky Way (Local Group) falling toward Virgo Cluster. ...
Chapter 17
... planets, brown dwarfs, very old white dwarfs, etc.) (ii) Hot dark matter; neutrinos and other exotic particles (introduced by theories but not observed yet) moving at very high speeds (iii) Black holes (iv) Cold dark matter; an exotic form of matter, moving at relatively slow speed, which can be det ...
... planets, brown dwarfs, very old white dwarfs, etc.) (ii) Hot dark matter; neutrinos and other exotic particles (introduced by theories but not observed yet) moving at very high speeds (iii) Black holes (iv) Cold dark matter; an exotic form of matter, moving at relatively slow speed, which can be det ...
Document
... that they are distant galaxies like our own Milky Way Galaxy, and that the Universe is far larger than previously thought. Galaxies are the fundamental units of the Universe, just as stars are the basic units of galaxies. Like stars, many galaxies are found in clusters, and there are also superclust ...
... that they are distant galaxies like our own Milky Way Galaxy, and that the Universe is far larger than previously thought. Galaxies are the fundamental units of the Universe, just as stars are the basic units of galaxies. Like stars, many galaxies are found in clusters, and there are also superclust ...
Cosmic Order out of Primordial Chaos Jones, Bernard JT
... Summary. Nikos Voglis had many astronomical interests, among them was the question of the origin of galactic angular momentum. In this short tribute we review how this subject has changed since the 1970’s and how it has now become evident that gravitational tidal forces have not only caused galaxies ...
... Summary. Nikos Voglis had many astronomical interests, among them was the question of the origin of galactic angular momentum. In this short tribute we review how this subject has changed since the 1970’s and how it has now become evident that gravitational tidal forces have not only caused galaxies ...
cp violation and the origins of matter
... mass-energy associated with stars, galaxies, etc. The larger value comes from various measurements of large scale structure, especially measurements of the potential associated with gravitating (but not necessarily visible) mass-energy. The discrepancy between these numbers suggests that the majorit ...
... mass-energy associated with stars, galaxies, etc. The larger value comes from various measurements of large scale structure, especially measurements of the potential associated with gravitating (but not necessarily visible) mass-energy. The discrepancy between these numbers suggests that the majorit ...
An Expanded View of the Universe
... tens of millions of light-years. Even at greater distances, we will be able to make the kind of observations of the structure of galaxies and the motions of their constituent stars that previously have only been possible in the nearby Universe: by taking advantage of the finite speed of light, we ca ...
... tens of millions of light-years. Even at greater distances, we will be able to make the kind of observations of the structure of galaxies and the motions of their constituent stars that previously have only been possible in the nearby Universe: by taking advantage of the finite speed of light, we ca ...
Seminar 2
... The galaxy population starts to deviate significantly at z as low as 0.3 and at z ~1 the morphology is so peculiar that about 30 % of the galaxies cannot be fitted into the classical Hubble tuning fork system. Although the internal structure and morphology show significant changes with redshift, the ...
... The galaxy population starts to deviate significantly at z as low as 0.3 and at z ~1 the morphology is so peculiar that about 30 % of the galaxies cannot be fitted into the classical Hubble tuning fork system. Although the internal structure and morphology show significant changes with redshift, the ...
Starburst Galaxies Encyclopedia of Astronomy & Astrophysics eaa.iop.org T Heckman
... running out of gas. Gas-depletion times in starbursts are usually of order 108 yr, but they are highly uncertain for many reasons. For one thing, the mass of molecular gas is difficult to determine to better than a factor of a few since the determination relies on indirect arguments and observations ...
... running out of gas. Gas-depletion times in starbursts are usually of order 108 yr, but they are highly uncertain for many reasons. For one thing, the mass of molecular gas is difficult to determine to better than a factor of a few since the determination relies on indirect arguments and observations ...
sections 23-25 powerpoint
... Elliptical galaxy (E). A spheroidal galaxy containing millions to billions of old low-mass stars and no gas or dust. Spiral Galaxy (S). A galaxy with a spheroidal bulge of several million old low-mass stars and a flattened pancake-like disk of billions of old low-mass and young high-mass stars, alon ...
... Elliptical galaxy (E). A spheroidal galaxy containing millions to billions of old low-mass stars and no gas or dust. Spiral Galaxy (S). A galaxy with a spheroidal bulge of several million old low-mass stars and a flattened pancake-like disk of billions of old low-mass and young high-mass stars, alon ...
Chronology of the universe
The chronology of the universe describes the history and future of the universe according to Big Bang cosmology, the prevailing scientific model of how the universe developed over time from the Planck epoch, using the cosmological time parameter of comoving coordinates. The model of the universe's expansion is known as the Big Bang. As of 2015, this expansion is estimated to have begun 13.799 ± 0.021 billion years ago. It is convenient to divide the evolution of the universe so far into three phases.