Part 2 of Our Lecture
... Formation of stellar systems: Observations (4) • SEDs of low-mass stars in NGC 7160 (about 10 Myr) (according to the same procedures followed for Tr 37) only 1 sample shows indications of active accretion (CTTS). – black dotted line : similar spectral type derived from Kenyon & ...
... Formation of stellar systems: Observations (4) • SEDs of low-mass stars in NGC 7160 (about 10 Myr) (according to the same procedures followed for Tr 37) only 1 sample shows indications of active accretion (CTTS). – black dotted line : similar spectral type derived from Kenyon & ...
Stars - cayugascience
... Figure 8.5 The three main life cycles of stars. What cycle a star goes through is determined by what mass the star first develops after its formation in a nebula. The solar system formed 5 billion years ago, in the same way other star-and-planet systems in the universe formed. ...
... Figure 8.5 The three main life cycles of stars. What cycle a star goes through is determined by what mass the star first develops after its formation in a nebula. The solar system formed 5 billion years ago, in the same way other star-and-planet systems in the universe formed. ...
Multiple Choice, continued
... • The galaxy in which we live, the Milky Way, is a spiral galaxy in which the sun is one of hundreds of billions of stars. • Two irregular galaxies, the Large Magellanic Cloud and Small Magellanic Cloud, are our closest neighbors. • These three galaxies are called the Local Group. ...
... • The galaxy in which we live, the Milky Way, is a spiral galaxy in which the sun is one of hundreds of billions of stars. • Two irregular galaxies, the Large Magellanic Cloud and Small Magellanic Cloud, are our closest neighbors. • These three galaxies are called the Local Group. ...
Hierarchical galaxy formation
... Their properties are exactly what we’d expect if they are powered by black holes (BUT we still haven’t seen a black hole directly!) ...
... Their properties are exactly what we’d expect if they are powered by black holes (BUT we still haven’t seen a black hole directly!) ...
Presentation available here - Lunar and Planetary Institute
... All core collapse explosions are asymmetric, maybe produced by magnetic jets. How can this be proved? Gamma-ray bursts are caused by jets of material moving at nearly the speed of light. Do they mark the birth of black holes? At least some gamma-ray bursts (and maybe all) arise in supernova ex ...
... All core collapse explosions are asymmetric, maybe produced by magnetic jets. How can this be proved? Gamma-ray bursts are caused by jets of material moving at nearly the speed of light. Do they mark the birth of black holes? At least some gamma-ray bursts (and maybe all) arise in supernova ex ...
30 Doradus - HubbleSOURCE
... where stars spend the majority of their life and where they convert H into He. ...
... where stars spend the majority of their life and where they convert H into He. ...
Stellarium01 Starter Part A B Doc - ASTR101
... Start Stellarium. Use “Current Location” listed above by going to the Icon Bar at the left-hand side of the screen and find the Location window icon (shortcut key= “F6”, in some linux it is fn-f6) and click on it. Scroll through the list of locations in the window until you find the current location ...
... Start Stellarium. Use “Current Location” listed above by going to the Icon Bar at the left-hand side of the screen and find the Location window icon (shortcut key= “F6”, in some linux it is fn-f6) and click on it. Scroll through the list of locations in the window until you find the current location ...
stars-notes
... Composition of Stars, continued • A continuous spectrum shows all of the colors, while an absorption spectrum shows which wavelengths of light are absorbed. • The spectrum of a star is an absorption spectrum because the atmosphere of the star absorbs certain portions of the light produced by the sta ...
... Composition of Stars, continued • A continuous spectrum shows all of the colors, while an absorption spectrum shows which wavelengths of light are absorbed. • The spectrum of a star is an absorption spectrum because the atmosphere of the star absorbs certain portions of the light produced by the sta ...
Refuges for Life in a - University of Arizona
... has been a huge breakthrough: the discovery of giant, Jupitersize planets around sunlike stars. Not every sunlike star has such a planet. In fact, the giant planets discovered to date are primarily found around stars that are rich in chemical elements heavier than helium— what astronomers call “meta ...
... has been a huge breakthrough: the discovery of giant, Jupitersize planets around sunlike stars. Not every sunlike star has such a planet. In fact, the giant planets discovered to date are primarily found around stars that are rich in chemical elements heavier than helium— what astronomers call “meta ...
Physics@Brock - Brock University
... 68. Using spectroscopic parallax enables one to determine a star’s (a) spectral class. (b) luminosity class. (c) distance (using its parallax angle). (d) distance (using the H-R diagram). 69. Which term describes a pair of stars that we can determine are orbiting each other only by measuring their p ...
... 68. Using spectroscopic parallax enables one to determine a star’s (a) spectral class. (b) luminosity class. (c) distance (using its parallax angle). (d) distance (using the H-R diagram). 69. Which term describes a pair of stars that we can determine are orbiting each other only by measuring their p ...
1 Name: Date: PARALLAX EXERCISE1 The goal of this
... Determining distances to celestial objects is one of the most important and most difficult measurements in astronomy. The most direct method of distance measurement is parallax, the apparent shift in the position of an object due to the change in position of the observer. To see an example of this, ...
... Determining distances to celestial objects is one of the most important and most difficult measurements in astronomy. The most direct method of distance measurement is parallax, the apparent shift in the position of an object due to the change in position of the observer. To see an example of this, ...
Define the following terms in the space provided
... B) The circumpolar region will appear smaller compared to its size in Syracuse. C) Stars will complete one cycle in the same time as seen in Syracuse. D) You can see stars in the southern sky that are not visible from Syracuse. 3) The long exposure image of star trails shown below was taken while lo ...
... B) The circumpolar region will appear smaller compared to its size in Syracuse. C) Stars will complete one cycle in the same time as seen in Syracuse. D) You can see stars in the southern sky that are not visible from Syracuse. 3) The long exposure image of star trails shown below was taken while lo ...
doc - Pocket Stars
... manually from this page. Select the ARM processor. Checking the "SDSS" displays images from the Sloan Digital Sky Survey if you have an internet connection. You can zoom in and out using the "+" and "-" buttons. Note that SDSS does not cover the entire sky: most objects in the range M80 to M100 are ...
... manually from this page. Select the ARM processor. Checking the "SDSS" displays images from the Sloan Digital Sky Survey if you have an internet connection. You can zoom in and out using the "+" and "-" buttons. Note that SDSS does not cover the entire sky: most objects in the range M80 to M100 are ...
Lecture Eleven (Powerpoint format)
... partly faulty. This debate illustrates forcefully how tricky it is to pick one's way through the treacherous ground that characterizes research at the frontiers of science." Frank Shu (contemporary astrophysicist) "As to relativity, I must confess that I would rather have a subject in which there ...
... partly faulty. This debate illustrates forcefully how tricky it is to pick one's way through the treacherous ground that characterizes research at the frontiers of science." Frank Shu (contemporary astrophysicist) "As to relativity, I must confess that I would rather have a subject in which there ...
key for the HR Diagram Lab Handout
... Geminorum have brightness of 9,000 Suns and 310 Suns respectively; these stars are much larger than Proxima and Barnard s with brightness of 0.00005 and 0.0003 Suns. The significant difference in brightness with no change in temperature means that Betelgeuse and Mu Geminorum are much larger than the ...
... Geminorum have brightness of 9,000 Suns and 310 Suns respectively; these stars are much larger than Proxima and Barnard s with brightness of 0.00005 and 0.0003 Suns. The significant difference in brightness with no change in temperature means that Betelgeuse and Mu Geminorum are much larger than the ...
Can we detect asteroid impacts with rocky extrasolar planets?
... wiped out many creatures, including the dinosaurs. This impact, known as the Chicxulub impact, must have created a spectacular flash. Was it bright enough to be detected as far away as Sirius? How many impacts like this are occurring in our region of the Milky Way? Have we any chance of detecting th ...
... wiped out many creatures, including the dinosaurs. This impact, known as the Chicxulub impact, must have created a spectacular flash. Was it bright enough to be detected as far away as Sirius? How many impacts like this are occurring in our region of the Milky Way? Have we any chance of detecting th ...
The Outer Planets: Mercury, Venus, Earth and Mars How are the
... 3. Research 2 important missions in NASA’s history and explain the purpose of the mission, the year it happened, the importance of the mission, and what they brought back (findings). ...
... 3. Research 2 important missions in NASA’s history and explain the purpose of the mission, the year it happened, the importance of the mission, and what they brought back (findings). ...
The Life Cycle of Stars
... the shape of the band in the H–R diagram in Figure 4. The hotter these stars are, the more luminous they are. Astronomers have determined that hotter, more luminous main sequence stars are more massive, while cooler, less luminous stars are less massive. Main sequence stars fuse hydrogen to produce ...
... the shape of the band in the H–R diagram in Figure 4. The hotter these stars are, the more luminous they are. Astronomers have determined that hotter, more luminous main sequence stars are more massive, while cooler, less luminous stars are less massive. Main sequence stars fuse hydrogen to produce ...
Searching For Planets Beyond Our Solar System - Cosmos
... The problem is, of course, that planets are small and faint, and much smaller and fainter than the relatively massive and bright central star around which they orbit. The di culties of `direct' detection of a planet|where the radiation reected or emitted by a planet is observed|is apparent when con ...
... The problem is, of course, that planets are small and faint, and much smaller and fainter than the relatively massive and bright central star around which they orbit. The di culties of `direct' detection of a planet|where the radiation reected or emitted by a planet is observed|is apparent when con ...
Perseus (constellation)
Perseus, named after the Greek mythological hero Perseus, is a constellation in the northern sky. It was one of 48 listed by the 2nd-century astronomer Ptolemy and among the 88 modern constellations defined by the International Astronomical Union (IAU). It is located in the northern celestial hemisphere near several other constellations named after legends surrounding Perseus, including Andromeda to the west and Cassiopeia to the north. Perseus is also bordered by Aries and Taurus to the south, Auriga to the east, Camelopardalis to the north, and Triangulum to the west.The galactic plane of the Milky Way passes through Perseus but is mostly obscured by molecular clouds. The constellation's brightest star is the yellow-white supergiant Alpha Persei (also called Mirfak), which shines at magnitude 1.79. It and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta Persei), linked with ominous legends because of its variability, which is noticeable to the naked eye. Rather than being an intrinsically variable star, it is an eclipsing binary. Other notable star systems in Perseus include X Persei, a binary system containing a neutron star, and GK Persei, a nova that peaked at magnitude 0.2 in 1901. The Double Cluster, comprising two open clusters quite near each other in the sky, was known to the ancient Chinese. The constellation gives its name to the Perseus Cluster (Abell 426), a massive galaxy cluster located 250 million light-years from Earth. It hosts the radiant of the annual Perseids meteor shower—one of the most prominent meteor showers in the sky.