Lecture Notes – Galaxies
... Clusters of Galaxies Contain from 10 – 1000s of galaxies, and are gravitationally bound systems. Spacing of galaxies is realtively close, ≈ 100 times diameter of galaxy. (For comparison, in our Galaxy the spacing of stars ≈ 106 diameter of a typical star.) Rich clusters (> 100 members) contain mostl ...
... Clusters of Galaxies Contain from 10 – 1000s of galaxies, and are gravitationally bound systems. Spacing of galaxies is realtively close, ≈ 100 times diameter of galaxy. (For comparison, in our Galaxy the spacing of stars ≈ 106 diameter of a typical star.) Rich clusters (> 100 members) contain mostl ...
The Milky Way`s Spiral Arms
... useful in studying the Milky Way? • How is the 21 cm line of Hydrogen produced? • Describe the spiral arms of the Milky Way and ...
... useful in studying the Milky Way? • How is the 21 cm line of Hydrogen produced? • Describe the spiral arms of the Milky Way and ...
MillionaireGame__Science_Review
... Hint!: The hottest stars are blue, which have surface temperatures between 11,000 and 50,000 C ...
... Hint!: The hottest stars are blue, which have surface temperatures between 11,000 and 50,000 C ...
Structure of Neutron Stars
... A RNS code is developed and made available to the public by Sterligioulas and Friedman ...
... A RNS code is developed and made available to the public by Sterligioulas and Friedman ...
Globular Clusters Dynamic Lives The
... roughly like those between molecules in a uniform-temperature gas. The stars are not physically colliding in this celestial pinball game, just deflecting each other gravitationally. This energy exchange eventually leads to thermal equilibrium. In a typical cluster this takes about a hundred million ...
... roughly like those between molecules in a uniform-temperature gas. The stars are not physically colliding in this celestial pinball game, just deflecting each other gravitationally. This energy exchange eventually leads to thermal equilibrium. In a typical cluster this takes about a hundred million ...
12 Stellar Evolution
... A supernova is a one-time event – once it happens, there is little or nothing left of the progenitor star. There are two different types of supernovae, both equally common: Type I, which is a carbon-detonation supernova; Type II, which is the death of a high-mass star. ...
... A supernova is a one-time event – once it happens, there is little or nothing left of the progenitor star. There are two different types of supernovae, both equally common: Type I, which is a carbon-detonation supernova; Type II, which is the death of a high-mass star. ...
The Event Depicted on VMs Folio 68r1
... Both share the same six stars, of which three match by position, while two are offset by the same angle and amount, and the last shifted, possibly for artistic reasons. All three remain correct in relation to other stars. The labels of the six stars had been cracked prior to making the overlay, and ...
... Both share the same six stars, of which three match by position, while two are offset by the same angle and amount, and the last shifted, possibly for artistic reasons. All three remain correct in relation to other stars. The labels of the six stars had been cracked prior to making the overlay, and ...
An Earth-sized Planet in the Habitable Zone of a
... composition of planets with radii less than about 1.5 R⊕ are unlikely to be dominated by H/He gas envelopes (23). Although a thin H/He envelope around Kepler-186f cannot be entirely ruled out, the planet was likely vulnerable to photo-evaporation early in the star’s life when extreme ultra-violet (X ...
... composition of planets with radii less than about 1.5 R⊕ are unlikely to be dominated by H/He gas envelopes (23). Although a thin H/He envelope around Kepler-186f cannot be entirely ruled out, the planet was likely vulnerable to photo-evaporation early in the star’s life when extreme ultra-violet (X ...
Document
... Something may appear bright or faint because it actually is bright or faint or because it is close to us or far away We need to measure distances ...
... Something may appear bright or faint because it actually is bright or faint or because it is close to us or far away We need to measure distances ...
PHYS3380_111115_bw - The University of Texas at Dallas
... Most novae are recurrent on time scales ranging from 1,000 to 100,000 years • recurrence interval for a nova is less dependent on the white dwarf's accretion rate than on its mass • massive white dwarfs - powerful gravity - require less accretion to fuel an outburst than lower-mass ones • the interv ...
... Most novae are recurrent on time scales ranging from 1,000 to 100,000 years • recurrence interval for a nova is less dependent on the white dwarf's accretion rate than on its mass • massive white dwarfs - powerful gravity - require less accretion to fuel an outburst than lower-mass ones • the interv ...
(Diurnal) Motion of the Sky A star`s daily path is its diurnal circle
... ecliptic: path of the sun through the zodiac [figure 2-11] different constellations are visible at night at different times of year ...
... ecliptic: path of the sun through the zodiac [figure 2-11] different constellations are visible at night at different times of year ...
Lab Activity on Variations in the Apparent Daily Path of
... earth is WAY too big and WAY too close to the sun; and the model sun goes around the model earth even though, as you well know, the earth actually revolves around the sun). ...
... earth is WAY too big and WAY too close to the sun; and the model sun goes around the model earth even though, as you well know, the earth actually revolves around the sun). ...
Chapter 17
... C. From the "fixed basis" of globular clusters in the galactic halo. D. From the proper motions of nearby open clusters. 16. The reason we can use RR-Lyrae stars to find our distance from the Galaxy's center is: A. of their period-luminosity relation. B. they are all at the same distance. C. they ar ...
... C. From the "fixed basis" of globular clusters in the galactic halo. D. From the proper motions of nearby open clusters. 16. The reason we can use RR-Lyrae stars to find our distance from the Galaxy's center is: A. of their period-luminosity relation. B. they are all at the same distance. C. they ar ...
Lecture 18, Gravitational Waves, Future Missions and
... - IRIS: near-infrared IFU spectrometer with imaging capability - IRMS: near-infrared spectrometer with imaging capability The near-IR instruments will use the AO system, and the plan is to get diffraction limited resolution (~10 milliarcsecs). Science (some): first galaxies, epoch of reionization, s ...
... - IRIS: near-infrared IFU spectrometer with imaging capability - IRMS: near-infrared spectrometer with imaging capability The near-IR instruments will use the AO system, and the plan is to get diffraction limited resolution (~10 milliarcsecs). Science (some): first galaxies, epoch of reionization, s ...
Lecture 02
... The North Star (Polaris) is 50° above your horizon, due north. Where are you? A. You are on the equator. B. You are at the North Pole. C. You are at latitude 50°N. D. You are at longitude 50°E. E. You are at latitude 50°N and longitude 50°E. ...
... The North Star (Polaris) is 50° above your horizon, due north. Where are you? A. You are on the equator. B. You are at the North Pole. C. You are at latitude 50°N. D. You are at longitude 50°E. E. You are at latitude 50°N and longitude 50°E. ...
THE INNER CORE OF A NEUTRON STAR Part 1
... Abstract: Neutron stars are formed by super compaction that result from the gravitational collapse of a massive star after a supernova. Neutron star composition makes it so heavy that its density is at least twice the mass of Earth’s Sun. Current thinking subscribes to the possibility that a neutron ...
... Abstract: Neutron stars are formed by super compaction that result from the gravitational collapse of a massive star after a supernova. Neutron star composition makes it so heavy that its density is at least twice the mass of Earth’s Sun. Current thinking subscribes to the possibility that a neutron ...
TRANSIT
... mind the seed of doubt began to grow that nothing was going to happen. I had actually forgotten to find out one vital fact, when exactly the Leonid radiant would rise from this location, so I wasn't sure when the show would start. By 1:20 in the morning I was getting worried that I'd travelled to th ...
... mind the seed of doubt began to grow that nothing was going to happen. I had actually forgotten to find out one vital fact, when exactly the Leonid radiant would rise from this location, so I wasn't sure when the show would start. By 1:20 in the morning I was getting worried that I'd travelled to th ...
PPT
... • Monitoring of hundreds of thousands of stars to 200 pc for 1MJ planets with P < 10 years: – complete census of all stellar types (P=2-9 years) – actual masses, not just lower limits (m sin i) – 20,000-30,000 planets expected to 150-200 pc ...
... • Monitoring of hundreds of thousands of stars to 200 pc for 1MJ planets with P < 10 years: – complete census of all stellar types (P=2-9 years) – actual masses, not just lower limits (m sin i) – 20,000-30,000 planets expected to 150-200 pc ...
スライド 1 - STScI
... monitoring an area of 3 square degrees along the bar in the LMC, and also an area of 1 square degree in the central part of the SMC. In the last 10 years, we observed these areas about 80-90 and 100-110 times for LMC and SMC, respectively. As a result, we obtained time series data with more than 3,0 ...
... monitoring an area of 3 square degrees along the bar in the LMC, and also an area of 1 square degree in the central part of the SMC. In the last 10 years, we observed these areas about 80-90 and 100-110 times for LMC and SMC, respectively. As a result, we obtained time series data with more than 3,0 ...
Foreword - Peter Zamarovský
... And it would surely have disappointed even Tycho Brahe had he lived a few years longer and had a telescope available to him. He had estimated that the apparent diameter of the stars was about two minutes of arc12. If this were so we would only have to enlarge it fifteen times in order to see it as b ...
... And it would surely have disappointed even Tycho Brahe had he lived a few years longer and had a telescope available to him. He had estimated that the apparent diameter of the stars was about two minutes of arc12. If this were so we would only have to enlarge it fifteen times in order to see it as b ...
lecture2_3
... A gallery of spectral images of galaxies at increasingly higher redshift (labeled on the left) These are all star-forming galaxies observed very early in the cosmic evolution (primeval galaxies) The emission line shown in the circles is observed at longer wavelengths in those galaxies located at hig ...
... A gallery of spectral images of galaxies at increasingly higher redshift (labeled on the left) These are all star-forming galaxies observed very early in the cosmic evolution (primeval galaxies) The emission line shown in the circles is observed at longer wavelengths in those galaxies located at hig ...
Earth/Space Science FINAL Review/Study Guide: Gardana DUE
... 1.) What is the nebular hypothesis? 2.) How do the two models of the universe that were developed by Ptolemy and Copernicus compare? 3.) What are the basic characteristics of the inner planets? 4.) What are some similarities and differences between inner planets? 5.) What planetary features all ...
... 1.) What is the nebular hypothesis? 2.) How do the two models of the universe that were developed by Ptolemy and Copernicus compare? 3.) What are the basic characteristics of the inner planets? 4.) What are some similarities and differences between inner planets? 5.) What planetary features all ...
Far Ultraviolet Spectroscopic Explorer
... Search data set for interesting individual objects that represent rare classes of objects. ...
... Search data set for interesting individual objects that represent rare classes of objects. ...
The Galaxies
... ► Very little dust and gas to form stars. ► Filled with old stars: yellow and red giants. ► HUGE range in sizes! ► Ellipticals range is size from the smallest known galaxies (1,000 LY across and about a million stars) to the largest known galaxies (nearly a million LY across with tens of trillions o ...
... ► Very little dust and gas to form stars. ► Filled with old stars: yellow and red giants. ► HUGE range in sizes! ► Ellipticals range is size from the smallest known galaxies (1,000 LY across and about a million stars) to the largest known galaxies (nearly a million LY across with tens of trillions o ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.