By: Kaylea Stone, Kalena Karp, Megan
... Life on Mercury is highly unlikely due to how close Mercury is to the Sun. The UV radiation levels are too high to support life on Mercury. To date, there is no evidence that there is life on Mercury. ...
... Life on Mercury is highly unlikely due to how close Mercury is to the Sun. The UV radiation levels are too high to support life on Mercury. To date, there is no evidence that there is life on Mercury. ...
Chapter 16 - Follow “Ironmtn.wordpress.com”
... 12.Scientists study meteorites a. because they contain the material from which the solar system was made. b. to find out more about how and when the Earth was created. c. to find out more about other parts of the solar system. d. for all the above reasons. e. Scientists cannot study meteorites becau ...
... 12.Scientists study meteorites a. because they contain the material from which the solar system was made. b. to find out more about how and when the Earth was created. c. to find out more about other parts of the solar system. d. for all the above reasons. e. Scientists cannot study meteorites becau ...
Stars - MrCrabtreesScience
... If remaining core is >3 times the mass of the sun it forms a Black Hole • All the matter is squeezed into a space smaller ...
... If remaining core is >3 times the mass of the sun it forms a Black Hole • All the matter is squeezed into a space smaller ...
Solar System
... AU), whereas the most distant planet, Neptune, is 30 AU Main article: Formation and evolution of the Solar (4.5×109 km) from the Sun. System With a few exceptions, the farther a planet or belt is from the Sun, the larger the distance between its orbit and the The Solar System formed 4.568 billion ye ...
... AU), whereas the most distant planet, Neptune, is 30 AU Main article: Formation and evolution of the Solar (4.5×109 km) from the Sun. System With a few exceptions, the farther a planet or belt is from the Sun, the larger the distance between its orbit and the The Solar System formed 4.568 billion ye ...
Energy Generation in Stars
... maintain CN =+2, we now have unbalanced LN. Oh crap, we now must create another particle and that particle must have CN = 0, BN =0, LN = +1 Such a particle exists and is called a neutrino. In this manner, two initial particles (e.g. the two protons) end up being converted in 3 new particles (A Deute ...
... maintain CN =+2, we now have unbalanced LN. Oh crap, we now must create another particle and that particle must have CN = 0, BN =0, LN = +1 Such a particle exists and is called a neutrino. In this manner, two initial particles (e.g. the two protons) end up being converted in 3 new particles (A Deute ...
Last time: Star Clusters (sec. 19.6)
... than sun; see More Precisely 20-1). Stable, lasts most of star’s lifetime. (Will explain why this is so stable in lecture.) [You already know how lifetime varies with mass.] Depletion of H in core [see Fig. 20.2]. Starting in center (hottest), and moving out, the He (the “ashes”) accumulates in core ...
... than sun; see More Precisely 20-1). Stable, lasts most of star’s lifetime. (Will explain why this is so stable in lecture.) [You already know how lifetime varies with mass.] Depletion of H in core [see Fig. 20.2]. Starting in center (hottest), and moving out, the He (the “ashes”) accumulates in core ...
Measuring the Distances to the Stars: Parallax What sets the parallax limit?
... MW Rotation Curve • In principle, for stars, clusters, etc: ...
... MW Rotation Curve • In principle, for stars, clusters, etc: ...
Was kann man von offenen Sternhaufen lernen?
... • Identical distance from the Sun: +- The volume expansion of the cluster • Identical age: +- Time scale of star formation • Identical metallicity: +- Inhomogeneities of the initial GMC and the chemical evolution of the ...
... • Identical distance from the Sun: +- The volume expansion of the cluster • Identical age: +- Time scale of star formation • Identical metallicity: +- Inhomogeneities of the initial GMC and the chemical evolution of the ...
An Earth-sized Planet in the Habitable Zone of a
... like Kepler-186 (SOM Section 9). We found that a massive initial disk (>10 M⊕) of solid material with a very steep surface density profile is needed to form planets similar to the Kepler-186 system. Accretion disks with this much mass so close to their star (< 0.4 AU) or with such steep surface dens ...
... like Kepler-186 (SOM Section 9). We found that a massive initial disk (>10 M⊕) of solid material with a very steep surface density profile is needed to form planets similar to the Kepler-186 system. Accretion disks with this much mass so close to their star (< 0.4 AU) or with such steep surface dens ...
HW #8 Stellar Evolution I Solutions
... rate in the event of fluctuations in the core fusion rate. This is known as a negative feedback cycle. For example, if core fusion rates momentarily increase, then the excess energy generated will increase the temperature of the core and cause the core to expand slightly. The resulting expansion the ...
... rate in the event of fluctuations in the core fusion rate. This is known as a negative feedback cycle. For example, if core fusion rates momentarily increase, then the excess energy generated will increase the temperature of the core and cause the core to expand slightly. The resulting expansion the ...
Stars
... Supergiants and Supernovas • Stars that are about 8 times more massive than the sun have a more violent star evolution. • The core heats up to much higher temperatures. Heavier and heavier elements form by fusion and the star expands into a supergiant. • Iron forms in the core. Iron cannot release ...
... Supergiants and Supernovas • Stars that are about 8 times more massive than the sun have a more violent star evolution. • The core heats up to much higher temperatures. Heavier and heavier elements form by fusion and the star expands into a supergiant. • Iron forms in the core. Iron cannot release ...
The Ultimate Tool of Astronomy: Telescopes
... balck hole), chemical composition, physical properties (temperature, density), dynamics (motions, mass), distance of the sources ...
... balck hole), chemical composition, physical properties (temperature, density), dynamics (motions, mass), distance of the sources ...
Black Hole
... its outer layers as a planetary nebula. The electrons and protons have been packed as closely as possible by gravity. An example of the white dwarf is the Pup, companion star of Sirius in Canis major. ...
... its outer layers as a planetary nebula. The electrons and protons have been packed as closely as possible by gravity. An example of the white dwarf is the Pup, companion star of Sirius in Canis major. ...
![state review-2007[1]. - Redlands High School](http://s1.studyres.com/store/data/004268026_1-ba3c1a5f3edf4d079d8e2aa8cdb7816e-300x300.png)
state review-2007[1]. - Redlands High School
... in our solar system than planets. • B-travel in elliptical orbits like planets. • C-be much farther from Earth than planets. • D-reflect much more light than planets. ...
... in our solar system than planets. • B-travel in elliptical orbits like planets. • C-be much farther from Earth than planets. • D-reflect much more light than planets. ...
Blizzard Bag 2
... Tidal heating has probably affected the Galilean moons, but we must also suspect they formed together in a disk-shaped nebula around the proto-Jupiter. Heat from Jupiter would have heated the inner part of that disk, and the outer parts would have remained colder. Thus, we can understand the densiti ...
... Tidal heating has probably affected the Galilean moons, but we must also suspect they formed together in a disk-shaped nebula around the proto-Jupiter. Heat from Jupiter would have heated the inner part of that disk, and the outer parts would have remained colder. Thus, we can understand the densiti ...
March
... crescent Moon will be level with Mars and above Venus. The Moon is by Mars again on the 30th. Jupiter is the biggest planet by far. Its mass is greater than all the other planets put together. In a telescope it shows parallel stripes. These are zones of warm and cold clouds, made narrow by Jupiter's ...
... crescent Moon will be level with Mars and above Venus. The Moon is by Mars again on the 30th. Jupiter is the biggest planet by far. Its mass is greater than all the other planets put together. In a telescope it shows parallel stripes. These are zones of warm and cold clouds, made narrow by Jupiter's ...
Answers
... Hint: Consider the different stages these two stars will go through during their lifetime, and the properties of the final stages. Both stars will become supergiants after leaving the Main Sequence. When the core of the star collapses, both stars will explode as a Supernova. The 40 Msun star will re ...
... Hint: Consider the different stages these two stars will go through during their lifetime, and the properties of the final stages. Both stars will become supergiants after leaving the Main Sequence. When the core of the star collapses, both stars will explode as a Supernova. The 40 Msun star will re ...
The formation of stars and planets
... Outer radius of Strömgren sphere: where all photons are used up, i.e. where LN(r)=0. ...
... Outer radius of Strömgren sphere: where all photons are used up, i.e. where LN(r)=0. ...
Comets do not orbit forever.
... D. Orbital Periods: Comets have orbital periods ranging from a _few_ years to _hundreds of thousands_ of years. Some comets pass through the inner Solar System only once before being thrown out into interstellar space. 1. Short-period comets originate in the _Kuiper Belt_, a disk of small rocky, ic ...
... D. Orbital Periods: Comets have orbital periods ranging from a _few_ years to _hundreds of thousands_ of years. Some comets pass through the inner Solar System only once before being thrown out into interstellar space. 1. Short-period comets originate in the _Kuiper Belt_, a disk of small rocky, ic ...
Chapter 19 Star Formation
... Individual cloud fragments begin to collapse. Once the density is high enough, there is no further fragmentation. Reason: the star has become opaque to its own radiation: It has a photosphere! After this, the ‘trapped radiation heats the interior of the object as it contracts. Stage 3: Object become ...
... Individual cloud fragments begin to collapse. Once the density is high enough, there is no further fragmentation. Reason: the star has become opaque to its own radiation: It has a photosphere! After this, the ‘trapped radiation heats the interior of the object as it contracts. Stage 3: Object become ...
The Birth, Life, and Death of Stars
... BBN does not generate any heavy elements! He-ashes fuse in the hot (T ≈ 108 K) and dense (n ≈ 1028 cm−3 ) core Physics demands a tiny concentration of 8 Be (n8 /n4 ≈ 10−8 ) Carbon is formed: α + α → 8 Be + α → 12 C + γ (7.367 MeV) Every atom in our body has been formed in stellar cores! ...
... BBN does not generate any heavy elements! He-ashes fuse in the hot (T ≈ 108 K) and dense (n ≈ 1028 cm−3 ) core Physics demands a tiny concentration of 8 Be (n8 /n4 ≈ 10−8 ) Carbon is formed: α + α → 8 Be + α → 12 C + γ (7.367 MeV) Every atom in our body has been formed in stellar cores! ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.