Chapter 3 Cosmology 3.1 The Doppler effect
... by the unaided eye on a clear night. By taking photographs of Andromeda using a large telescope, Edwin Hubble was able to identify Cepheid variable stars in Andromeda. These stars vary in brightness with a period of the order of days and are named after the first one to be discovered, -Cephei, the ...
... by the unaided eye on a clear night. By taking photographs of Andromeda using a large telescope, Edwin Hubble was able to identify Cepheid variable stars in Andromeda. These stars vary in brightness with a period of the order of days and are named after the first one to be discovered, -Cephei, the ...
Active Galactic Nuclei: are they important?
... •Central black hole evolves together in a coupled way with the host galaxy in mutual relation •We start to catch some global energetic effects qualitatively We are still very far from the detailed knowledge of the galaxy evolution which should include BH interaction with multiphase galactic and inte ...
... •Central black hole evolves together in a coupled way with the host galaxy in mutual relation •We start to catch some global energetic effects qualitatively We are still very far from the detailed knowledge of the galaxy evolution which should include BH interaction with multiphase galactic and inte ...
1. setting the scene 2. the cosmic dark ages and the first stars
... Universe and make an educated guess as to its future destiny. This ‘standard model’ of cosmology is illustrated in Figure 1. Our Universe began 13.7 billion years ago, in an event whose popular name – the Big Bang – reflects our ignorance of its nature and cause. As the Universe expanded (and cooled ...
... Universe and make an educated guess as to its future destiny. This ‘standard model’ of cosmology is illustrated in Figure 1. Our Universe began 13.7 billion years ago, in an event whose popular name – the Big Bang – reflects our ignorance of its nature and cause. As the Universe expanded (and cooled ...
Inquiry Lab: Exploring the Spectrum Intended Learning Outcomes: 1
... 2. Can you infer relative motions based on the Doppler Effect? (Confirmation – Part B) 3. What can be inferred from the spectral analysis of distant galaxies? (Guided Inquiry – Parts C and D) Background for Teachers: Students need to understand the Doppler Effect. This was covered in the previous le ...
... 2. Can you infer relative motions based on the Doppler Effect? (Confirmation – Part B) 3. What can be inferred from the spectral analysis of distant galaxies? (Guided Inquiry – Parts C and D) Background for Teachers: Students need to understand the Doppler Effect. This was covered in the previous le ...
Observational Data
... the reddenning, thus corrected SFRs for our galaxies. If high SFRs (>100Mo/yr) will be confirmed, it is clear that in a few 100 Myr a full M* galaxy will be assembled. ...
... the reddenning, thus corrected SFRs for our galaxies. If high SFRs (>100Mo/yr) will be confirmed, it is clear that in a few 100 Myr a full M* galaxy will be assembled. ...
Study of the X-ray Source Population and the Dark Matter
... spatial and time resolution, the Wide Field Imager of the Athena Xray Observatory will make it possible to study X-ray sources down to very low flux limits. In Draco dSph, e.g., we will be able to observe X-ray sources with luminosities down to 1031 erg/s with 1000 to 2000 counts in 10 ksec, allowin ...
... spatial and time resolution, the Wide Field Imager of the Athena Xray Observatory will make it possible to study X-ray sources down to very low flux limits. In Draco dSph, e.g., we will be able to observe X-ray sources with luminosities down to 1031 erg/s with 1000 to 2000 counts in 10 ksec, allowin ...
Galaxies
... Galaxies: The Hubble Law E. Hubble (1913): Distant galaxies are moving away from our Milky way, with a recession velocity, vr, proportional to their distance d: ...
... Galaxies: The Hubble Law E. Hubble (1913): Distant galaxies are moving away from our Milky way, with a recession velocity, vr, proportional to their distance d: ...
2P24.pdf
... the blue, Hβ and Hα regions (fiber #68). Some absorption lines, including CaII H & K are clearly detected; Hβ emission and stellar absorption are also visible. This figure also presents selected parts of the spectra of two knots at the South of the galaxy (fibers #10 & #118) which show very differen ...
... the blue, Hβ and Hα regions (fiber #68). Some absorption lines, including CaII H & K are clearly detected; Hβ emission and stellar absorption are also visible. This figure also presents selected parts of the spectra of two knots at the South of the galaxy (fibers #10 & #118) which show very differen ...
Figure 1
... The Cycle 21 Treasury program LEGUS (HST/GO-13364) is the first HST UV Atlas of nearby galaxies, aimed at the thorough investigation of star formation and its relation with galaxy environment, from the scales of individual stars to those of ~kpc clustered structures. ...
... The Cycle 21 Treasury program LEGUS (HST/GO-13364) is the first HST UV Atlas of nearby galaxies, aimed at the thorough investigation of star formation and its relation with galaxy environment, from the scales of individual stars to those of ~kpc clustered structures. ...
PH607 – Galaxies
... gas are seen as shadows against background X-ray emission. Gamma rays 1: photon energies greater than 300 MeV. At these extreme energies, most of the celestial gamma rays originate in collisions of cosmic rays with hydrogen nuclei in interstellar clouds. ...
... gas are seen as shadows against background X-ray emission. Gamma rays 1: photon energies greater than 300 MeV. At these extreme energies, most of the celestial gamma rays originate in collisions of cosmic rays with hydrogen nuclei in interstellar clouds. ...
The Next 2-3 Weeks
... Define: Dn = angular diameter at which surface brightness reaches In = 20.75 B-mag/arcsec2 ...
... Define: Dn = angular diameter at which surface brightness reaches In = 20.75 B-mag/arcsec2 ...
Quasars - Ann Arbor Earth Science
... Blazar - broader term including BL Lacertae objects and those quasars which share their characteristics of unusually weak spectral features, plus strong and rapid variability. LINER - Low-Ionization Nuclear Emission-line Region, gaseous regions common in the centers of many kinds of galaxies. Some o ...
... Blazar - broader term including BL Lacertae objects and those quasars which share their characteristics of unusually weak spectral features, plus strong and rapid variability. LINER - Low-Ionization Nuclear Emission-line Region, gaseous regions common in the centers of many kinds of galaxies. Some o ...
Curriculum Development Unit Overview DRAFT Planning For Each
... 8. How likely is a catastrophic impact event and what is its potential impact on your community? As a student, I can… a) describe the orbits of comets and asteroids and how these might result in an impact event. b) describe the energy involved in an impact event c) describe the local and global effe ...
... 8. How likely is a catastrophic impact event and what is its potential impact on your community? As a student, I can… a) describe the orbits of comets and asteroids and how these might result in an impact event. b) describe the energy involved in an impact event c) describe the local and global effe ...
inaugural091112
... • Rotation: angular momentum • Magnetic field (standard model) • Turbulence: random supersonic motions ...
... • Rotation: angular momentum • Magnetic field (standard model) • Turbulence: random supersonic motions ...
Gravitational Waves – detectors, sources & science
... • “Ripples in spacetime” – any rapidly moving mass generates fluctuations in spacetime curvature. • These fluctuations propagate at the speed of light away from the source. These are gravitational waves! • When a gravitational wave passes through, space is stretched and squeezed alternately. The eff ...
... • “Ripples in spacetime” – any rapidly moving mass generates fluctuations in spacetime curvature. • These fluctuations propagate at the speed of light away from the source. These are gravitational waves! • When a gravitational wave passes through, space is stretched and squeezed alternately. The eff ...
Beyond the Solar System By Patti Hutchison ANSWER THE
... Our solar system extends billions of miles from Earth. But there is still something bigger. It is the Milky Way, our galaxy. But wait, there's something even bigger than that- the universe! There are billions of galaxies in space. A galaxy is a group of stars, gas, and dust that are bound together b ...
... Our solar system extends billions of miles from Earth. But there is still something bigger. It is the Milky Way, our galaxy. But wait, there's something even bigger than that- the universe! There are billions of galaxies in space. A galaxy is a group of stars, gas, and dust that are bound together b ...
Starbursts – from 30 Doradus to Lyman
... our UV spectroscopic capability, while HST’s gyros (used for attitude control) are not expected to last more than a few years. A robotic repair mission is currently under design, but many are sceptical that this will be realized rapidly enough to avert disaster for our community. ...
... our UV spectroscopic capability, while HST’s gyros (used for attitude control) are not expected to last more than a few years. A robotic repair mission is currently under design, but many are sceptical that this will be realized rapidly enough to avert disaster for our community. ...
The Scale of the Realms of the Universe
... The Universe is very, very big. But just how big it is and how we fit into the grand scheme can be quite difficult for a person to grasp. The distances and sizes are so far beyond our everyday experience. Many activities have been created to help gain a sense of the scale of the Solar System by buil ...
... The Universe is very, very big. But just how big it is and how we fit into the grand scheme can be quite difficult for a person to grasp. The distances and sizes are so far beyond our everyday experience. Many activities have been created to help gain a sense of the scale of the Solar System by buil ...
LOFAR - Veres Péter
... compact non-thermal sources in the neighbouring galaxies Possibly SNRs but there’s a chance for detexting pulsars as well Search for low frequency nuclear emission is also an issue (e.g. in the center of the MW & M31). Their nature is uncertain ...
... compact non-thermal sources in the neighbouring galaxies Possibly SNRs but there’s a chance for detexting pulsars as well Search for low frequency nuclear emission is also an issue (e.g. in the center of the MW & M31). Their nature is uncertain ...
Slides from the talk
... between WIMP-nucleus in the White Dwarfs…. …but this not true (CK, Tinyakov „10) because the potential energy is much larger than the asymptotic kinetic energy of the WIMP. WIMPs are almost relativistic while entering the Whit Dwarf. ...
... between WIMP-nucleus in the White Dwarfs…. …but this not true (CK, Tinyakov „10) because the potential energy is much larger than the asymptotic kinetic energy of the WIMP. WIMPs are almost relativistic while entering the Whit Dwarf. ...
Star - Uplift Education
... sometime during the early history of the Universe, long before any star, Universe was at a sufficiently high temperature to produce helium by fusion. In this process many high energy photons would be produced. The CMB (Cosmic Microwave Background Radiation) radiation was emitted only a few hundred t ...
... sometime during the early history of the Universe, long before any star, Universe was at a sufficiently high temperature to produce helium by fusion. In this process many high energy photons would be produced. The CMB (Cosmic Microwave Background Radiation) radiation was emitted only a few hundred t ...
Hubble Deep Field Image
... dust Could not contain very bright objects or anything that emitted too much infrared, x-ray, or UV In addition, field could never be occulted by the Earth or Moon. ...
... dust Could not contain very bright objects or anything that emitted too much infrared, x-ray, or UV In addition, field could never be occulted by the Earth or Moon. ...
1 UNIT 3 EARTH HISTORY - POSSIBLE TEST QUESTIONS OUR
... The Big Bang 1. What is the Big Bang Theory? 2. What is the approximate age of the Universe? 3. Where is the center of our universe? Evidence for the Big Bang 4. What do we generally mean by the term “cosmic”? 5. Which is the most abundant element in the Universe (cosmic abundances of the original t ...
... The Big Bang 1. What is the Big Bang Theory? 2. What is the approximate age of the Universe? 3. Where is the center of our universe? Evidence for the Big Bang 4. What do we generally mean by the term “cosmic”? 5. Which is the most abundant element in the Universe (cosmic abundances of the original t ...
Magnetic Fields in the ICM and IGM from Active Galaxies
... 1. Diffused Radio Emission: Distribution and strength of cosmic magnetic fields, seeding from first stars, dwarf galaxies, AGN feedbacks, or (turbulent) dynamo. 2. Differential FRM of jet pc-kpc scale: is there current? 3. Clusters as magnetic field laboratories: Structure formation, AGNs, heating, ...
... 1. Diffused Radio Emission: Distribution and strength of cosmic magnetic fields, seeding from first stars, dwarf galaxies, AGN feedbacks, or (turbulent) dynamo. 2. Differential FRM of jet pc-kpc scale: is there current? 3. Clusters as magnetic field laboratories: Structure formation, AGNs, heating, ...