High Energy Observational Astrophysics
... X-rays from about 12 keV to 120 keV are classified as "hard" X-rays ...
... X-rays from about 12 keV to 120 keV are classified as "hard" X-rays ...
PPT Slides
... What have we learned from these spectra? • Age, size, and curvature of the universe – 13.7 Billion yr, consistent with infinite Euclidean space on scales of 50 Billion lt-yr ...
... What have we learned from these spectra? • Age, size, and curvature of the universe – 13.7 Billion yr, consistent with infinite Euclidean space on scales of 50 Billion lt-yr ...
Radiative Processes in Astrophysics
... corresponding power emitted: where &! is the SCATTERING COEFFICIENT Dividing by &! we find the source function for scattering equals mean intensity of the emitting material: ...
... corresponding power emitted: where &! is the SCATTERING COEFFICIENT Dividing by &! we find the source function for scattering equals mean intensity of the emitting material: ...
The Expanding Universe - Best - armstrong
... Discover activityHow Does the Universe Expand pg. 148 1. What happens to the distances between galaxies that are close together? 2. What happens to the distances between galaxies that are far apart? 3. If the universe is expanding, do galaxies that are close together move apart faster or slower tha ...
... Discover activityHow Does the Universe Expand pg. 148 1. What happens to the distances between galaxies that are close together? 2. What happens to the distances between galaxies that are far apart? 3. If the universe is expanding, do galaxies that are close together move apart faster or slower tha ...
Chapter 22 - Heat Transfer p.430 Discover activity If several objects
... Radiant energy can reflect repeatedly until the energy is absorbed and nothing reflects. A good reflector typically absorbs little radiant energy. Light colored objects or clothes reflect energy without absorbing much and are cooler. The surface of Earth absorbs energy in the day and emits it at nig ...
... Radiant energy can reflect repeatedly until the energy is absorbed and nothing reflects. A good reflector typically absorbs little radiant energy. Light colored objects or clothes reflect energy without absorbing much and are cooler. The surface of Earth absorbs energy in the day and emits it at nig ...
Question Answer What device uses light from the sun to produce
... 8. How is high level radioactive waste disposed of? 9. Which type of ionising radiation can penetrate several metres of lead? 10. Write down 3 sources of background radiation 11. What is red shift? 12. Which metal is present in the Earth’s core in large amounts? 13. What are solar flares? 14. What i ...
... 8. How is high level radioactive waste disposed of? 9. Which type of ionising radiation can penetrate several metres of lead? 10. Write down 3 sources of background radiation 11. What is red shift? 12. Which metal is present in the Earth’s core in large amounts? 13. What are solar flares? 14. What i ...
P2 revision quiz
... 8. How is high level radioactive waste disposed of? 9. Which type of ionising radiation can penetrate several metres of lead? 10. Write down 3 sources of background radiation 11. What is red shift? 12. Which metal is present in the Earth’s core in large amounts? 13. What are solar flares? 14. What i ...
... 8. How is high level radioactive waste disposed of? 9. Which type of ionising radiation can penetrate several metres of lead? 10. Write down 3 sources of background radiation 11. What is red shift? 12. Which metal is present in the Earth’s core in large amounts? 13. What are solar flares? 14. What i ...
Question Answer 1. What device uses light from the sun to produce
... 8. How is high level radioactive waste disposed of? 9. Which type of ionising radiation can penetrate several metres of lead? 10. Write down 3 sources of background radiation 11. What is red shift? 12. Which metal is present in the Earth’s core in large amounts? 13. What are solar flares? 14. What i ...
... 8. How is high level radioactive waste disposed of? 9. Which type of ionising radiation can penetrate several metres of lead? 10. Write down 3 sources of background radiation 11. What is red shift? 12. Which metal is present in the Earth’s core in large amounts? 13. What are solar flares? 14. What i ...
Truths and Consequences of Ionizing Radiation: New Science
... • Particle “albedo” refers to particles released from Moon owing to processes occurring within lunar regolith • Specifically here, focus on albedo particles produced through nuclear reactions when solar energetic particles and galactic cosmic rays interact with material in outer layers of regolith – ...
... • Particle “albedo” refers to particles released from Moon owing to processes occurring within lunar regolith • Specifically here, focus on albedo particles produced through nuclear reactions when solar energetic particles and galactic cosmic rays interact with material in outer layers of regolith – ...
hot
... stable lifetimes of such stars elements that are more massive than iron form during supernova events ...
... stable lifetimes of such stars elements that are more massive than iron form during supernova events ...
PPT - ILWS
... • Solar task group is very big if it still takes care of the heliospheric space • The Inner-Interplanetary region is the key region of space weather forecast • ICME propagations has not being our attention • Deep space exploration missions need to know the heliospheric environment • Interaction of s ...
... • Solar task group is very big if it still takes care of the heliospheric space • The Inner-Interplanetary region is the key region of space weather forecast • ICME propagations has not being our attention • Deep space exploration missions need to know the heliospheric environment • Interaction of s ...
Space Environment Forecasting for the Exploration Initiative with the
... A year after SDO's first light, researchers submitted 191 abstracts to the first SDO science meeting. This corresponds to a new result almost every two days--a remarkable output. Some Highlights! Solar flares are more powerful than we thought. EVE data show that flares produce as much as five ti ...
... A year after SDO's first light, researchers submitted 191 abstracts to the first SDO science meeting. This corresponds to a new result almost every two days--a remarkable output. Some Highlights! Solar flares are more powerful than we thought. EVE data show that flares produce as much as five ti ...
OCR Physics P2 - Wey Valley School
... stable source of energy; transfers energy to Earth as light and heat transfer light into electricity; produce direct current (DC); can operate in remote locations; have a power that depends on the surface area exposed to sunlight low maintenance; no need for power cables; no need for fuel; long life ...
... stable source of energy; transfers energy to Earth as light and heat transfer light into electricity; produce direct current (DC); can operate in remote locations; have a power that depends on the surface area exposed to sunlight low maintenance; no need for power cables; no need for fuel; long life ...
Radiation from an Accelerated Charge
... This result is called Larmor's equation. It states that any charged particle radiates when accelerated and that the total radiated power is proportional to the square of the acceleration. Since the greatest astrophysical accelerations are usually electromagnetic, the acceleration is usually proporti ...
... This result is called Larmor's equation. It states that any charged particle radiates when accelerated and that the total radiated power is proportional to the square of the acceleration. Since the greatest astrophysical accelerations are usually electromagnetic, the acceleration is usually proporti ...
EM Spectrum notes - Biloxi Public Schools
... can make certain used by bees and some other insects to see minerals glow Prolonged exposure can damage cells (ozone layer---O3) not visible to Causes skin to make vitamin D humans Can burn skin or lead to skin cancer in humans and some other animals Photosynthesis Greenhouse gases ( ...
... can make certain used by bees and some other insects to see minerals glow Prolonged exposure can damage cells (ozone layer---O3) not visible to Causes skin to make vitamin D humans Can burn skin or lead to skin cancer in humans and some other animals Photosynthesis Greenhouse gases ( ...
UV SURFACE ENVIRONMENT OF EARTH
... star receives many times the biologically effective radiation as around the early Sun and thousands of times the modern Earth-Sun levels. A pre-biotic Earth orbiting GJ 581 (M3.5V) receives hundreds times less biologically effective radiation, a few times modern Earth-Sun levels. The UV fluxes calcu ...
... star receives many times the biologically effective radiation as around the early Sun and thousands of times the modern Earth-Sun levels. A pre-biotic Earth orbiting GJ 581 (M3.5V) receives hundreds times less biologically effective radiation, a few times modern Earth-Sun levels. The UV fluxes calcu ...
powerpoint version - Leeds Astrophysics
... • Helium 3 - 2p and 2e and 1n - unstable • Helium 4 - 2p and 2e and 2n -stable • Lithium 6 - 3p and 3e and 3n - stable Hydrogen, helium and a trace of lithium made in first 5 minutes of the hot Big Bang - most of the other 89 stable elements must have been ...
... • Helium 3 - 2p and 2e and 1n - unstable • Helium 4 - 2p and 2e and 2n -stable • Lithium 6 - 3p and 3e and 3n - stable Hydrogen, helium and a trace of lithium made in first 5 minutes of the hot Big Bang - most of the other 89 stable elements must have been ...
SIMPLE RADIATION TRANSFER FOR SPHERICAL STARS
... We obtained only one half of the radiation energy density expected under LTE conditions for the temperature T , because radiation was coming from one hemisphere only. The radiative energy flux may be calculated for our case: ...
... We obtained only one half of the radiation energy density expected under LTE conditions for the temperature T , because radiation was coming from one hemisphere only. The radiative energy flux may be calculated for our case: ...
Why We Explore Human Space Exploration Humanity`s interest in
... permanent, stays beyond low Earth orbit. The technology and space systems required to transport and sustain explorers will drive innovation and encourage creative ways to address challenges. As previous space endeavors have demonstrated, the resulting ingenuity and technologies will have long lastin ...
... permanent, stays beyond low Earth orbit. The technology and space systems required to transport and sustain explorers will drive innovation and encourage creative ways to address challenges. As previous space endeavors have demonstrated, the resulting ingenuity and technologies will have long lastin ...
Space Weather
... Global navigation satellite systems, such as the global positioning system (GPS) operated by the United States, have become an essential part of aviation, and the FAA’s NextGen modernization plan calls for even more utilization of this technology. In a simplified fashion, this technology uses triang ...
... Global navigation satellite systems, such as the global positioning system (GPS) operated by the United States, have become an essential part of aviation, and the FAA’s NextGen modernization plan calls for even more utilization of this technology. In a simplified fashion, this technology uses triang ...
Health threat from cosmic rays
The health threat from cosmic rays is the danger posed by galactic cosmic rays and solar energetic particles to astronauts on interplanetary missions. Galactic cosmic rays (GCRs) consist of high energy protons (85%), helium (14%) and other high energy nuclei (HZE ions). Solar energetic particles consist primarily of protons accelerated by the Sun to high energies via proximity to solar flares and coronal mass ejections. They are one of the most important barriers standing in the way of plans for interplanetary travel by crewed spacecraft.