ACTIVITIES for Grades 3-5 (Continued)
... • The Universe is vast and estimated to be over ten billion years old. The current theory is that the Universe was created from an explosion called the Big Bang. Physical Setting 1.2b • Stars form when gravity causes clouds of molecules to contract until nuclear fusion of light elements into heavier ...
... • The Universe is vast and estimated to be over ten billion years old. The current theory is that the Universe was created from an explosion called the Big Bang. Physical Setting 1.2b • Stars form when gravity causes clouds of molecules to contract until nuclear fusion of light elements into heavier ...
Summary of Objectives for Test 1
... What distinguishes science from non-science? Give an example. ...
... What distinguishes science from non-science? Give an example. ...
My Constellation
... Õ Aquarius is a rather faint constellation which would not be famous if it weren't part of the Zodiac. Õ Aquarius, as its name suggests is universally associated with water. In most cultures, it is drawn as a man pouring water from a bucket. This may arise from the fact that the Sun enters Aquarius ...
... Õ Aquarius is a rather faint constellation which would not be famous if it weren't part of the Zodiac. Õ Aquarius, as its name suggests is universally associated with water. In most cultures, it is drawn as a man pouring water from a bucket. This may arise from the fact that the Sun enters Aquarius ...
Slide 1
... Comptonized emission from the one visible hot spot and makes use of the Oblate Schwarzschild approximation for ray-tracing. We include a scattered light contribution, which accounts for flux scattered off an equatorial accretion disk to the observer including time delays in the scattered light. We g ...
... Comptonized emission from the one visible hot spot and makes use of the Oblate Schwarzschild approximation for ray-tracing. We include a scattered light contribution, which accounts for flux scattered off an equatorial accretion disk to the observer including time delays in the scattered light. We g ...
Part 2 - Stellar Evolution
... A star with a fusion core and an envelope is in hydrostatic equilibrium If there is a perturbation of T, say increasing T, the core expands and cools off, reduce the nuclear energy production; as a result, T goes back to normal But slowly, because of P=nKT, as number density decreases through nuclea ...
... A star with a fusion core and an envelope is in hydrostatic equilibrium If there is a perturbation of T, say increasing T, the core expands and cools off, reduce the nuclear energy production; as a result, T goes back to normal But slowly, because of P=nKT, as number density decreases through nuclea ...
STELLAR FORMATION AND EVOLUTION
... To be able to understand the life cycle of a star, you need a good understanding of the Hertzsprung-Russell Diagram. In 1905, two astronomers, Einar Hertzsprung and Henry Norris Russell, independently plotted the temperature of a star versus the brightness of the star. They did this with a large num ...
... To be able to understand the life cycle of a star, you need a good understanding of the Hertzsprung-Russell Diagram. In 1905, two astronomers, Einar Hertzsprung and Henry Norris Russell, independently plotted the temperature of a star versus the brightness of the star. They did this with a large num ...
document
... Andromeda’s disk is now believed to span as much as 228,000 light years in width. Andromeda’s disk is also about twice as large as the Milky Way’s. The brightest star cloud in Andromeda is NGC 206. There are two “dust rings” in Andromeda’s disk caused by a head on collision with a neighboring dwarf ...
... Andromeda’s disk is now believed to span as much as 228,000 light years in width. Andromeda’s disk is also about twice as large as the Milky Way’s. The brightest star cloud in Andromeda is NGC 206. There are two “dust rings” in Andromeda’s disk caused by a head on collision with a neighboring dwarf ...
Fulltext PDF
... Interstellar Gas The interstellar gas is predominantly composed of hydrogen and of that which remains, most is helium. In the general regions of interstellar space, the density of the interstellar gas is about 1 atom per cubic centimeter (1 atom/ cm3). At many places within the galaxy, however, atom ...
... Interstellar Gas The interstellar gas is predominantly composed of hydrogen and of that which remains, most is helium. In the general regions of interstellar space, the density of the interstellar gas is about 1 atom per cubic centimeter (1 atom/ cm3). At many places within the galaxy, however, atom ...
ISP 205 Review Questions, Week 13
... 5. The picture below shows two cross sections of the same chunk of the universe, at time intervals separated by 2 billion years. We are on the Milky Way Galaxy, and have measured the distances to a number of other galaxies at both times. Our results (in millions of light years) are shown on the fig ...
... 5. The picture below shows two cross sections of the same chunk of the universe, at time intervals separated by 2 billion years. We are on the Milky Way Galaxy, and have measured the distances to a number of other galaxies at both times. Our results (in millions of light years) are shown on the fig ...
V - ESO
... then give rise to unbound OB associations via triggered star formation (e.g, Elmegreen 1983). ...
... then give rise to unbound OB associations via triggered star formation (e.g, Elmegreen 1983). ...
GRB Progenitors and their environments
... • Merger of 2 compact objects: NS/NS (do they form BHs?), BH/NS (many do not produce disk), BH/WD, NS/WD (disk too wide to produce short bursts?). • The distribution of the debris from the merger will play a role in timing. But the compact merger likely travels beyond the star formation site (stella ...
... • Merger of 2 compact objects: NS/NS (do they form BHs?), BH/NS (many do not produce disk), BH/WD, NS/WD (disk too wide to produce short bursts?). • The distribution of the debris from the merger will play a role in timing. But the compact merger likely travels beyond the star formation site (stella ...
When light passes through a medium, some light is removed
... Our team at the College of San Mateo (CSM) is creating an archive of gray scale “rainbow like” images of spectra matched with 2-D graphs. Our hope is to represent all spectral types and luminosity classes as well as variables and other interesting stars. ...
... Our team at the College of San Mateo (CSM) is creating an archive of gray scale “rainbow like” images of spectra matched with 2-D graphs. Our hope is to represent all spectral types and luminosity classes as well as variables and other interesting stars. ...
Slide 1
... Binary Stars More than 50 % of all stars in our Milky Way are not single stars, but belong to binaries: Pairs or multiple systems of stars which orbit their common center of mass. If we can measure and understand their orbital motion, we can estimate the stellar masses. ...
... Binary Stars More than 50 % of all stars in our Milky Way are not single stars, but belong to binaries: Pairs or multiple systems of stars which orbit their common center of mass. If we can measure and understand their orbital motion, we can estimate the stellar masses. ...
Document
... clusters. He derived the latter from the inverse square law of brightness. After analyzing the data he concluded that more distant clusters simply have more “stuff” between us and the clusters hence they appear fainter than they really are. Trumpler showed that there is dust material between the sta ...
... clusters. He derived the latter from the inverse square law of brightness. After analyzing the data he concluded that more distant clusters simply have more “stuff” between us and the clusters hence they appear fainter than they really are. Trumpler showed that there is dust material between the sta ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.