A black hole: The ultimate space
... The black hole at the center of our galaxy The center of our own galaxy contains a black hole of about 4 million solar masses . The mass is determined from the speed and distance of nearby stars that orbit the black hole like the planets orbiting Earth. A large central mass requires high speed for ...
... The black hole at the center of our galaxy The center of our own galaxy contains a black hole of about 4 million solar masses . The mass is determined from the speed and distance of nearby stars that orbit the black hole like the planets orbiting Earth. A large central mass requires high speed for ...
A Story about a Star`s Life
... • Brightest stars had magnitude 1 and dimmest had magnitude 6 • The system is still used today and units of measurement are called apparent magnitudes to emphasize how bright a star looks to an observer ...
... • Brightest stars had magnitude 1 and dimmest had magnitude 6 • The system is still used today and units of measurement are called apparent magnitudes to emphasize how bright a star looks to an observer ...
2020 Vision: An Overview of New Worlds, New Horizons in
... that powers stellar luminosity and, in the case of our own Sun, supports life on Earth. Astronomers have also learned that new planets can form in the dusty, rotating disks that surround protostars and very young stars. Such circumstellar disks have been detected around more than 80 percent of stars ...
... that powers stellar luminosity and, in the case of our own Sun, supports life on Earth. Astronomers have also learned that new planets can form in the dusty, rotating disks that surround protostars and very young stars. Such circumstellar disks have been detected around more than 80 percent of stars ...
Stellar Deaths - Mid
... What Powers the Sun? Nuclear Fusion: An event where the nuclei of two atoms join together. Need high temperatures. Why? To overcome electric repulsion. Energy is produced. (A small amount of mass = a lot of energy) E = mc2. Sum of mass and energy always conserved in reactions. Mass is just “frozen” ...
... What Powers the Sun? Nuclear Fusion: An event where the nuclei of two atoms join together. Need high temperatures. Why? To overcome electric repulsion. Energy is produced. (A small amount of mass = a lot of energy) E = mc2. Sum of mass and energy always conserved in reactions. Mass is just “frozen” ...
Autumn semester 2013-14 - The University of Sheffield
... Supersymmetry (SUSY) theory offers a potential candidate particle for dark matter we call the neutralino, that may be detectable either through creation in an accelerator such as the Large Hadron Collider (LHC), or directly in the laboratory. In both cases two important issues to consider in the des ...
... Supersymmetry (SUSY) theory offers a potential candidate particle for dark matter we call the neutralino, that may be detectable either through creation in an accelerator such as the Large Hadron Collider (LHC), or directly in the laboratory. In both cases two important issues to consider in the des ...
Review Powerpoint #4
... 8.8b. Recognize that the Sun is a medium sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousands of times closer to Earth than any other star. 8.8c. Explore how different wavelengths of the electro-magnetic spectrum such as light and radio waves are used to gain ...
... 8.8b. Recognize that the Sun is a medium sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousands of times closer to Earth than any other star. 8.8c. Explore how different wavelengths of the electro-magnetic spectrum such as light and radio waves are used to gain ...
PPT Slides - Center for Computational Sciences
... Molecular Cloud Lifetimes • Cloud lifetimes estimated by Blitz & Shu (1980) to be around 30 Myr in Milky Way – Locations downstream from spiral arms – Stellar ages associated with clouds ...
... Molecular Cloud Lifetimes • Cloud lifetimes estimated by Blitz & Shu (1980) to be around 30 Myr in Milky Way – Locations downstream from spiral arms – Stellar ages associated with clouds ...
Benchmark review power point
... 8.8b. Recognize that the Sun is a medium sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousands of times closer to Earth than any other star. 8.8c. Explore how different wavelengths of the electro-magnetic spectrum such as light and radio waves are used to gain ...
... 8.8b. Recognize that the Sun is a medium sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousands of times closer to Earth than any other star. 8.8c. Explore how different wavelengths of the electro-magnetic spectrum such as light and radio waves are used to gain ...
Quarter 1 Review of Transfer of Learning
... number of electrons in an elements outermost shell. For example, the element chlorine is in the third energy level and it has 7 electrons in its outermost shell. Describe the outer energy shell number and the number of electrons in the outermost shell for these elements: ...
... number of electrons in an elements outermost shell. For example, the element chlorine is in the third energy level and it has 7 electrons in its outermost shell. Describe the outer energy shell number and the number of electrons in the outermost shell for these elements: ...
Lec16_2D
... If there were no mass (i.e., no gravity) in the universe, the Hubble expansion would proceed at a constant speed. The age of the universe would then just be given by 1 / H0. In a real universe with mass, gravity must have (over time) slowed the Hubble expansion. In the past, the galaxies must have b ...
... If there were no mass (i.e., no gravity) in the universe, the Hubble expansion would proceed at a constant speed. The age of the universe would then just be given by 1 / H0. In a real universe with mass, gravity must have (over time) slowed the Hubble expansion. In the past, the galaxies must have b ...
PowerPoint Presentation - CUE Web Summary for halldweb.jlab.org
... I made some tests and communications with I didn’t measure any the BCAL team, seems deterioration of the that we have to use a 2 signal. wire cable, 5-10 cm, from the board so as Do we need an only the LED is extension with the attached on the light trapezoidal L-Gs? guide. ...
... I made some tests and communications with I didn’t measure any the BCAL team, seems deterioration of the that we have to use a 2 signal. wire cable, 5-10 cm, from the board so as Do we need an only the LED is extension with the attached on the light trapezoidal L-Gs? guide. ...
If you wish to a copy of this months Night Sky News
... wise to ask experienced members for advice so that you avoid the Sun during this type of observation. See above. Mars remains in the same region having just moved into the constellation of Ophiuchus on the 3rd of this month. It can be found north-north-west of Antares, its ‘rival’; so-called because ...
... wise to ask experienced members for advice so that you avoid the Sun during this type of observation. See above. Mars remains in the same region having just moved into the constellation of Ophiuchus on the 3rd of this month. It can be found north-north-west of Antares, its ‘rival’; so-called because ...
HOMEWORK #1
... that the square of the period is proportional to the cube of the semi-major axis: P a3. Later in your physics education, you will understand how Newton used his Law of Gravity to explain Kepler’s Law and to derive the exact equation P2 = 42a3 / G(M1 + M2). If we adopt units of solar masses for “ ...
... that the square of the period is proportional to the cube of the semi-major axis: P a3. Later in your physics education, you will understand how Newton used his Law of Gravity to explain Kepler’s Law and to derive the exact equation P2 = 42a3 / G(M1 + M2). If we adopt units of solar masses for “ ...
explanation
... theoretical limit: in practice, N.A. of about 0.95 can be obtained. What about ? From the formula one can see that the smallest the light wavelength the better resolving power is achievable. As we already said the visible light has wavelength between 400 and 700 nm. Even taking the smallest side of ...
... theoretical limit: in practice, N.A. of about 0.95 can be obtained. What about ? From the formula one can see that the smallest the light wavelength the better resolving power is achievable. As we already said the visible light has wavelength between 400 and 700 nm. Even taking the smallest side of ...
HOMEWORK #1
... that the square of the period is proportional to the cube of the semi-major axis: P a3. Later in your physics education, you will understand how Newton used his Law of Gravity to explain Kepler’s Law and to derive the exact equation P2 = 42a3 / G(M1 + M2). If we adopt units of solar masses for “ ...
... that the square of the period is proportional to the cube of the semi-major axis: P a3. Later in your physics education, you will understand how Newton used his Law of Gravity to explain Kepler’s Law and to derive the exact equation P2 = 42a3 / G(M1 + M2). If we adopt units of solar masses for “ ...
Gamma Ray Bursts
... collisions of two very dense objects, such as neutron stars in a binary. Also, some think, they could be from the same process as the long GRB but were not directly along the axis of the emission, i.e. not seeing it face on. ...
... collisions of two very dense objects, such as neutron stars in a binary. Also, some think, they could be from the same process as the long GRB but were not directly along the axis of the emission, i.e. not seeing it face on. ...
The Hot-plate Model of a Star Model of Stars— 29 Sep •
... • λpeak ×T=2.9mm K (Wien’s Law) • For the sun, T=5700K and λpeak =2.9mm/5700K=.0005mm=500nm • For a person, T=273+37=310K. λpeak =2.9mm/310K=.01mm (infrared) ...
... • λpeak ×T=2.9mm K (Wien’s Law) • For the sun, T=5700K and λpeak =2.9mm/5700K=.0005mm=500nm • For a person, T=273+37=310K. λpeak =2.9mm/310K=.01mm (infrared) ...
Doppler Effect
... • Examples: star approaches an observer so its light appears at higher frequency (blue shift). • Examples: Galaxies are accelerating away from observer so their light appears at lower frequencies (red shift). • Examples: Police use radar gun (radio waves) to monitor speed of cars and trucks. ...
... • Examples: star approaches an observer so its light appears at higher frequency (blue shift). • Examples: Galaxies are accelerating away from observer so their light appears at lower frequencies (red shift). • Examples: Police use radar gun (radio waves) to monitor speed of cars and trucks. ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.