lecture19 - Stony Brook University
... rays in the universe, lasting from a fraction to several seconds. ...
... rays in the universe, lasting from a fraction to several seconds. ...
Using Star Charts Introduction A Digression on Star Names
... The SC1 is useful for showing the coordinates and names of a large number of stars. It can be used by itself in learning the constellations, although it is not quite as convenient as the star wheel. The SC1 shows the magnitudes of stars by the size of the dot representing the star. The corresponden ...
... The SC1 is useful for showing the coordinates and names of a large number of stars. It can be used by itself in learning the constellations, although it is not quite as convenient as the star wheel. The SC1 shows the magnitudes of stars by the size of the dot representing the star. The corresponden ...
matthewchristianstarprodject
... Since the time required for a white dwarf to reach this state is calculated to be longer than the current age of the universe of 13.7 billion years, no black dwarfs are expected to exist in the universe yet, and the temperature of the coolest white dwarfs is one observational limit on the age of t ...
... Since the time required for a white dwarf to reach this state is calculated to be longer than the current age of the universe of 13.7 billion years, no black dwarfs are expected to exist in the universe yet, and the temperature of the coolest white dwarfs is one observational limit on the age of t ...
galaxies2_1_complete - Astronomy & Astrophysics Group
... Points to note… Evidence from e.g. HI rotation curves and the motions of satellite galaxies suggests that halos typically extend to at least 100 kpc. We cannot have (r ) r to arbitrary radii, however, if the halo mass is to remain finite. ...
... Points to note… Evidence from e.g. HI rotation curves and the motions of satellite galaxies suggests that halos typically extend to at least 100 kpc. We cannot have (r ) r to arbitrary radii, however, if the halo mass is to remain finite. ...
Nobel Prize in Physics for Accelerating Universe
... water similar to the water we find on Earth. • “Similar” means that the fraction of heavy water is same as in our oceans. • Heavy water is D2O instead of H2O, where D is deuterium which has a nucleus with one proton and one neutron. • The comet comes from the Kupier belt (30-50 AU) while most comets ...
... water similar to the water we find on Earth. • “Similar” means that the fraction of heavy water is same as in our oceans. • Heavy water is D2O instead of H2O, where D is deuterium which has a nucleus with one proton and one neutron. • The comet comes from the Kupier belt (30-50 AU) while most comets ...
Astrophysics
... Universe; Flow of Energy out of the Sun; Radio Astronomy of Pulsars; The Moons of Jupiter; the Height of the Lunar Mountains. I have used the Hubble Red-Shift exercise with my year 11 students and they really enjoyed it and got a lot out of it. They seem to give students a good 'feel' for some real ...
... Universe; Flow of Energy out of the Sun; Radio Astronomy of Pulsars; The Moons of Jupiter; the Height of the Lunar Mountains. I have used the Hubble Red-Shift exercise with my year 11 students and they really enjoyed it and got a lot out of it. They seem to give students a good 'feel' for some real ...
Stellar Evolution – Life of a Star
... region where matter and energy disappear from the visible universe. • A Black Hole grows by pulling in the mass (…and the associated gravitational energy…) around it. • Theoretically, a Black Hole can emit particles. A big Black Hole would emit a particle very slowly; whereas, a small Black Hole wou ...
... region where matter and energy disappear from the visible universe. • A Black Hole grows by pulling in the mass (…and the associated gravitational energy…) around it. • Theoretically, a Black Hole can emit particles. A big Black Hole would emit a particle very slowly; whereas, a small Black Hole wou ...
Celestial Distances
... The ball in the tip of a ballpoint pen viewed from across the length of a football field is about 1 arc second. February 14, 2006 ...
... The ball in the tip of a ballpoint pen viewed from across the length of a football field is about 1 arc second. February 14, 2006 ...
A WALK THROUGH THE SOLAR SYSTEM
... Ancient astronomers observed points of light that appeared to move among the stars, and they called these objects planets, meaning wanderers. They were named after Roman legends. Jupiter was the king of the gods, Mars the god of war, Mercury was messenger of the gods, Venus was the god of beauty, an ...
... Ancient astronomers observed points of light that appeared to move among the stars, and they called these objects planets, meaning wanderers. They were named after Roman legends. Jupiter was the king of the gods, Mars the god of war, Mercury was messenger of the gods, Venus was the god of beauty, an ...
11 Stellar Remnants - Journigan-wiki
... In searching for an explanation, astronomers began to take a new look at Fritz and Zwicky’s 30 year old ideas about neutron stars. It was Italian astronomer Franco Pacini that linked the super dense neutron star idea with the rapidly pulsating radio signals by proposing that the stars didn’t actuall ...
... In searching for an explanation, astronomers began to take a new look at Fritz and Zwicky’s 30 year old ideas about neutron stars. It was Italian astronomer Franco Pacini that linked the super dense neutron star idea with the rapidly pulsating radio signals by proposing that the stars didn’t actuall ...
The Hubble Space Telescope
... drag’ created by its evaporating hydrogen atmosphere. The astronomers believe that the oxygen present exists naturally, and is not being produced by any sort of life on the gaseous hot world. Nevertheless, it is a promising demonstration that the chemical composition of atmospheres on planets many l ...
... drag’ created by its evaporating hydrogen atmosphere. The astronomers believe that the oxygen present exists naturally, and is not being produced by any sort of life on the gaseous hot world. Nevertheless, it is a promising demonstration that the chemical composition of atmospheres on planets many l ...
main sequence
... be a planet but not massive enough to be a star. • They are smaller than the Sun but several times larger than the planet Jupiter • They emit no light or heat. • Just energy in the infrared wavelength ...
... be a planet but not massive enough to be a star. • They are smaller than the Sun but several times larger than the planet Jupiter • They emit no light or heat. • Just energy in the infrared wavelength ...
Supermassive black hole activity in local field early
... B. Miller & K. Gultekin (U. of Michigan), T. Treu & R. Antonucci (UCSB), J.-H. Woo (Seoul U.) ...
... B. Miller & K. Gultekin (U. of Michigan), T. Treu & R. Antonucci (UCSB), J.-H. Woo (Seoul U.) ...
1 - Stellar Life Cycle
... Absolute Magnitude usually shown on right-hand Y-axis Luminosity usually shown on left-hand Y-axis Temperature/Color Spectral Class shown on X-axis ...
... Absolute Magnitude usually shown on right-hand Y-axis Luminosity usually shown on left-hand Y-axis Temperature/Color Spectral Class shown on X-axis ...
Comets, asteroids, and meteors oh my!
... • Chunks of ice and dust whose orbits are usually very long, narrow ellipses. – Ellipses are elongated narrow circles – Think of it as a squashed oval. • About the size of a mountain, so rather large • We don’t see them very often. • Comet in Greek means “long-haired star” ...
... • Chunks of ice and dust whose orbits are usually very long, narrow ellipses. – Ellipses are elongated narrow circles – Think of it as a squashed oval. • About the size of a mountain, so rather large • We don’t see them very often. • Comet in Greek means “long-haired star” ...
White dwarf with almost pure oxygen atmosphere
... small stars (those less than ten times the mass of our sun) near the end of their lives, they throw off their outer layers and become white dwarf stars, which are very dense. The high gravity that occurs under such density causes the lighter elements, such as hydrogen or helium, to float to the sur ...
... small stars (those less than ten times the mass of our sun) near the end of their lives, they throw off their outer layers and become white dwarf stars, which are very dense. The high gravity that occurs under such density causes the lighter elements, such as hydrogen or helium, to float to the sur ...
AAS_WFXT_Solar_System_11Jan2010
... • There is a rich collection of known solar system x-ray objects Comets, Rocky Planets, Gas Giants, & the Heliosphere for WFXT to study. Most objects have been detected with only a few photons. • There is an important list of solar system objects that have yet to be detected in the x-ray : Mercury, ...
... • There is a rich collection of known solar system x-ray objects Comets, Rocky Planets, Gas Giants, & the Heliosphere for WFXT to study. Most objects have been detected with only a few photons. • There is an important list of solar system objects that have yet to be detected in the x-ray : Mercury, ...
Deep Space Mystery Note Form 3
... Small core of neutrons Spinning neutron star. Neutrons produce radio waves in a steady stream or random bursts. Stars 10 times the sun will leave a black hole. Leave behind a large core. With no energy fuse, it doesn’t have any out ward pressure so it gets engulfed in it’s own gravity an ...
... Small core of neutrons Spinning neutron star. Neutrons produce radio waves in a steady stream or random bursts. Stars 10 times the sun will leave a black hole. Leave behind a large core. With no energy fuse, it doesn’t have any out ward pressure so it gets engulfed in it’s own gravity an ...
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.