Chapter 8 Welcome to the Solar System
... • What caused the orderly patterns of motion in our solar system? – Solar nebula spun faster as it contracted because of conservation of angular momentum – Collisions between gas particles then caused the nebula to flatten into a disk – We have observed such disks around newly forming stars ...
... • What caused the orderly patterns of motion in our solar system? – Solar nebula spun faster as it contracted because of conservation of angular momentum – Collisions between gas particles then caused the nebula to flatten into a disk – We have observed such disks around newly forming stars ...
– 1 – 1.
... Annihilation Nuetrinos In addition to the ν produced in the p-p chain and such nuclear reactions, ν are produced through pair annihilation between electrons and positrons, e+ + e− → 2γ, but one time in 1020 , one gets ν + ν instead. A photon can diffuse out of a 5M ⊙ star with R = 1010 cm in τγ ≈ R2 ...
... Annihilation Nuetrinos In addition to the ν produced in the p-p chain and such nuclear reactions, ν are produced through pair annihilation between electrons and positrons, e+ + e− → 2γ, but one time in 1020 , one gets ν + ν instead. A photon can diffuse out of a 5M ⊙ star with R = 1010 cm in τγ ≈ R2 ...
Astronomy Assignment #1
... ALL planets begin with the accumulation of solid material. In the Solar Nebula, close to the Sun temperatures were too high to allow ices to condense and only rock was solid. Far from the Sun temperatures were low enough that ices could condense as well as rock. The boundary between these regions is ...
... ALL planets begin with the accumulation of solid material. In the Solar Nebula, close to the Sun temperatures were too high to allow ices to condense and only rock was solid. Far from the Sun temperatures were low enough that ices could condense as well as rock. The boundary between these regions is ...
Document
... b. brief outward eruption of atomic particles, such as protons and neutrinos. c. gradual increase in the stream of charged particles that make up the solar wind. d. huge, arched prominence that breaks its magnetic field and streams outward. _____ 27. Although the trigger for a solar flare is unknown ...
... b. brief outward eruption of atomic particles, such as protons and neutrinos. c. gradual increase in the stream of charged particles that make up the solar wind. d. huge, arched prominence that breaks its magnetic field and streams outward. _____ 27. Although the trigger for a solar flare is unknown ...
Quiz Maker - Geneva 304
... Chapter 24 Period__________________________________ Worksheet Date___________________________________ ______________________________________________________________________________________ ...
... Chapter 24 Period__________________________________ Worksheet Date___________________________________ ______________________________________________________________________________________ ...
using the scintillation of extended objects to probe lower
... ¾ CLOSE TO “TOTALITY” AT A TOTAL ECLIPSE OF THE SUN RAPIDLY VARYING, LOW CONTRAST LIGHT PATTERNS ARE SEEN ON THE GROUND OR BUILDINGS.THESE ARE REFERRED TO AS “SHADOW BANDS”. IT IS THE SAME AS SOLAR SCINTILLATION. ¾ SHADOW BAND PATTERN IS ELONGATED IN THE DIRECTION OF THE CRESCENT ¾ CONTRAST APPEARS ...
... ¾ CLOSE TO “TOTALITY” AT A TOTAL ECLIPSE OF THE SUN RAPIDLY VARYING, LOW CONTRAST LIGHT PATTERNS ARE SEEN ON THE GROUND OR BUILDINGS.THESE ARE REFERRED TO AS “SHADOW BANDS”. IT IS THE SAME AS SOLAR SCINTILLATION. ¾ SHADOW BAND PATTERN IS ELONGATED IN THE DIRECTION OF THE CRESCENT ¾ CONTRAST APPEARS ...
How was the Solar System Formed?
... Planets of the Solar System Standards: 1b Students know the evidence from Earth and Moon rocks indicates that the Solar System was formed from a Nebula cloud of dust and gas approximately 4.6 billion years ago (bya). 1c Students know the evidence from geological studies of Earth and other planets su ...
... Planets of the Solar System Standards: 1b Students know the evidence from Earth and Moon rocks indicates that the Solar System was formed from a Nebula cloud of dust and gas approximately 4.6 billion years ago (bya). 1c Students know the evidence from geological studies of Earth and other planets su ...
larger PDF file
... • This works out to about 330 neutrinos in every cm3 of the universe! • By comparison there are about 0.0000005 protons per cm3 in the universe. ...
... • This works out to about 330 neutrinos in every cm3 of the universe! • By comparison there are about 0.0000005 protons per cm3 in the universe. ...
letters - MIT Kavli Institute for Astrophysics and Space Research
... indicates that there is no significant fractionation between O and Ne in disk-integrated light from stellar coronae. We thus conclude that the results represent the true Ne/O abundance ratios of these stars. This conclusion is bolstered by findings of a constant Ne/O abundance ratio, in good agreeme ...
... indicates that there is no significant fractionation between O and Ne in disk-integrated light from stellar coronae. We thus conclude that the results represent the true Ne/O abundance ratios of these stars. This conclusion is bolstered by findings of a constant Ne/O abundance ratio, in good agreeme ...
PPT
... Time variability is a significant problem in solar system observations: Sun - very fast fluctuations (< 1 sec) Jupiter, Venus (others?) – lightning (< 1 sec) Others - rotation (hours to days), plus other intrinsic variability (clouds, seasons, etc.) Distance may change appreciably (need “common” dis ...
... Time variability is a significant problem in solar system observations: Sun - very fast fluctuations (< 1 sec) Jupiter, Venus (others?) – lightning (< 1 sec) Others - rotation (hours to days), plus other intrinsic variability (clouds, seasons, etc.) Distance may change appreciably (need “common” dis ...
Lecture 16: Iron Core Collapse, Neutron Stars
... typical photons on the blackbody have energy ~ 3 MeV (3 kT). Photons further out on the tail have enough energy (~8 MeV) to begin to rip nuclei apart. The process does not go to completion but about 10% helium by mass is “boiled” out of the iron and this process (photodisintegration) saps energy tha ...
... typical photons on the blackbody have energy ~ 3 MeV (3 kT). Photons further out on the tail have enough energy (~8 MeV) to begin to rip nuclei apart. The process does not go to completion but about 10% helium by mass is “boiled” out of the iron and this process (photodisintegration) saps energy tha ...
The Sun: Our Extraordinary Ordinary Star
... • When this material overwhelms the protective Van Allen Belt layer of our atmosphere all electromagnetic activities can be interrupted. – Electronic communication – Electrical Distribution – Satellites ...
... • When this material overwhelms the protective Van Allen Belt layer of our atmosphere all electromagnetic activities can be interrupted. – Electronic communication – Electrical Distribution – Satellites ...
Ph 3304 Review Problems for 1st Hour Exam Problem 1 -
... ( = 180). Determine (a) the change in wavelength of the photon, (b) the change in energy of the photon and (c) the kinetic energy imparted to the electron. Answers: a) +4.8 pm (b) ,41 keV (c) 41 keV Problem 3 - In 1983 the Infrared Astronomical Satellite (IRAS) detected a cloud of solid particles ...
... ( = 180). Determine (a) the change in wavelength of the photon, (b) the change in energy of the photon and (c) the kinetic energy imparted to the electron. Answers: a) +4.8 pm (b) ,41 keV (c) 41 keV Problem 3 - In 1983 the Infrared Astronomical Satellite (IRAS) detected a cloud of solid particles ...
Twenty Seven Planeta..
... significance, with questions solicited from the audience as the talk progresses. 27. Space-craft Tour of the Solar System: Adults ? Slides covering from the sun to the outer parts of the solar system. 28. Mesoamerican Observers of the Sky Hispanic show “Aztec, Mayan, and Olmec 29. Chesapeake Bay Cra ...
... significance, with questions solicited from the audience as the talk progresses. 27. Space-craft Tour of the Solar System: Adults ? Slides covering from the sun to the outer parts of the solar system. 28. Mesoamerican Observers of the Sky Hispanic show “Aztec, Mayan, and Olmec 29. Chesapeake Bay Cra ...
2785
... both target and projectile bodies change the configuration of the original system. It produces remnant bodies that may differ in composition, angular momentum and orbit. These can span a large size range, from the target body itself, to smaller satellites, to ejected fragments, even down to unbound ...
... both target and projectile bodies change the configuration of the original system. It produces remnant bodies that may differ in composition, angular momentum and orbit. These can span a large size range, from the target body itself, to smaller satellites, to ejected fragments, even down to unbound ...
Chapter 6 Lecture 4
... • Planets formed around solid “seeds” that condensed from gas and then grew through accretion. In the inner solar system, temperatures were so high that only metal and rock could condense. In the outer solar system, cold temperatures allowed more abundant ices to condense along with metal and rock. ...
... • Planets formed around solid “seeds” that condensed from gas and then grew through accretion. In the inner solar system, temperatures were so high that only metal and rock could condense. In the outer solar system, cold temperatures allowed more abundant ices to condense along with metal and rock. ...
Chapter 13
... C) Radio waves if the matter was traveling fast enough. D) X-rays if the matter was dense. E) Nothing. 32. As a spaceship nears an event horizon, a clock on the spaceship will be observed A) to run slowly. B) to run faster. C) to run backwards. D) to run the same as one on Earth. E) to stop. ...
... C) Radio waves if the matter was traveling fast enough. D) X-rays if the matter was dense. E) Nothing. 32. As a spaceship nears an event horizon, a clock on the spaceship will be observed A) to run slowly. B) to run faster. C) to run backwards. D) to run the same as one on Earth. E) to stop. ...
Astronomy 10B Study Guide – by Chapter
... Flares – X-ray explosions more powerful than 1,000,000 H-bombs Can injure astronauts in space Can damage spacecraft Also release bursts of high speed electrons and protons Coronal Mass Ejection’s (CME’s) – ejections of hot plasma Sometimes they have magnetic fields These mag fields can tangle with E ...
... Flares – X-ray explosions more powerful than 1,000,000 H-bombs Can injure astronauts in space Can damage spacecraft Also release bursts of high speed electrons and protons Coronal Mass Ejection’s (CME’s) – ejections of hot plasma Sometimes they have magnetic fields These mag fields can tangle with E ...
Advanced Composition Explorer
Advanced Composition Explorer (ACE) is a NASA Explorers program Solar and space exploration mission to study matter comprising energetic particles from the solar wind, the interplanetary medium, and other sources. Real-time data from ACE is used by the NOAA Space Weather Prediction Center to improve forecasts and warnings of solar storms. The ACE robotic spacecraft was launched August 25, 1997 and entered a Lissajous orbit close to the L1 Lagrangian point (which lies between the Sun and the Earth at a distance of some 1.5 million km from the latter) on December 12, 1997. The spacecraft is currently operating at that orbit. Because ACE is in a non-Keplerian orbit, and has regular station-keeping maneuvers, the orbital parameters at right are only approximate. The spacecraft is still in generally good condition in 2015, and is projected to have enough fuel to maintain its orbit until 2024. NASA Goddard Space Flight Center managed the development and integration of the ACE spacecraft.