Handout Life of Stars
... accretion. As gravity continues to pull ever more matter inward towards the core, its temperature, pressure and density increases. If a critical temperature in the core of a protostar is reached, then nuclear fusion begins and a star is born. If the critical temperature is not reached, however, it e ...
... accretion. As gravity continues to pull ever more matter inward towards the core, its temperature, pressure and density increases. If a critical temperature in the core of a protostar is reached, then nuclear fusion begins and a star is born. If the critical temperature is not reached, however, it e ...
HR Diagram and Life of a star
... This time there is so much energy because of the large mass of the outer star that the collapse causes a Super Nova Explosion. NOW…if the CORE of the star has a mass of 3x or less the size of the sun ( but has a much smaller diameter than the sun) it creates a Neutron Star which spins and emits a st ...
... This time there is so much energy because of the large mass of the outer star that the collapse causes a Super Nova Explosion. NOW…if the CORE of the star has a mass of 3x or less the size of the sun ( but has a much smaller diameter than the sun) it creates a Neutron Star which spins and emits a st ...
Small images
... Usually massive stars make supernovae. Their iron core collapses to a neutron star and the energy released explodes the rest of the star. But what if the explosion fizzled? What if the iron core collapsed to an object too massive to be a neutron star – a black hole. A star without rotation would the ...
... Usually massive stars make supernovae. Their iron core collapses to a neutron star and the energy released explodes the rest of the star. But what if the explosion fizzled? What if the iron core collapsed to an object too massive to be a neutron star – a black hole. A star without rotation would the ...
Life Cycle of a Star - Intervention Worksheet
... 3. Nebula can form either an _________ star that is about the size of our Sun or a ___________ star which can be over three times as big as our Sun! These stars stay in this period for most of their lives and they convert hydrogen to helium while generating lots of heat and light. ...
... 3. Nebula can form either an _________ star that is about the size of our Sun or a ___________ star which can be over three times as big as our Sun! These stars stay in this period for most of their lives and they convert hydrogen to helium while generating lots of heat and light. ...
TYPES OF STARS
... We can classify stars based on the "strength" of their H lines. Look at the spectra of the seven stars at the end of this worksheet. Using their spectra, rank the seven stars according to the strength of their Hα lines. If you can't rank them all easily, try coloring in the area between the line co ...
... We can classify stars based on the "strength" of their H lines. Look at the spectra of the seven stars at the end of this worksheet. Using their spectra, rank the seven stars according to the strength of their Hα lines. If you can't rank them all easily, try coloring in the area between the line co ...
Blowin` in the wind: both `negative` and `positive` feedback in an
... radiatively-driven winds are available. We present SINFONI near infrared integral field spectroscopy of XID2028, an obscured, radio-quiet z = 1.59 QSO, in which we clearly resolve a fast (1500 km/s) and extended (up to 13 kpc from the black hole) outflow in the [OIII] lines emitting gas, whose large v ...
... radiatively-driven winds are available. We present SINFONI near infrared integral field spectroscopy of XID2028, an obscured, radio-quiet z = 1.59 QSO, in which we clearly resolve a fast (1500 km/s) and extended (up to 13 kpc from the black hole) outflow in the [OIII] lines emitting gas, whose large v ...
May 2010 - Pomona Valley Amateur Astronomers
... them up and gives the reason to the fact that the huge amounts of gases are believed to be the formation of a skewed ring of stars, which would facilitate the flow of gas, by sapping its speed so that it spirals in towards the back hole. It has been a mystery on how enough matter can reach these cos ...
... them up and gives the reason to the fact that the huge amounts of gases are believed to be the formation of a skewed ring of stars, which would facilitate the flow of gas, by sapping its speed so that it spirals in towards the back hole. It has been a mystery on how enough matter can reach these cos ...
PREVIEW-Reading Quiz 06 - Chapter 12
... Because the surface temperatures of these stars are so low, dust forms along with the gas and gets ejected. The vast majority of these giant stars are part of a binary system and mass ends up being dumped on the other star. These giant stars have convection occurring throughout their interior, and t ...
... Because the surface temperatures of these stars are so low, dust forms along with the gas and gets ejected. The vast majority of these giant stars are part of a binary system and mass ends up being dumped on the other star. These giant stars have convection occurring throughout their interior, and t ...
PDF version (two pages, including the full text)
... Second-brightest among Leo’s stars is Denebola (‘tail of the lion’), well to the east (right, for an observer facing north) of the ‘question mark’. According to Egyptian legend, the sun was in Leo immediately after the Creation, near Denebola. On a more scientific note, Denebola is about 36 light ye ...
... Second-brightest among Leo’s stars is Denebola (‘tail of the lion’), well to the east (right, for an observer facing north) of the ‘question mark’. According to Egyptian legend, the sun was in Leo immediately after the Creation, near Denebola. On a more scientific note, Denebola is about 36 light ye ...
UNIT VIII/B: THE EARTH IN SPACE – STARS AND GALAXIES
... c. The various types of galaxies include: * Spiral galaxies, which are typically disk-shaped with a somewhat greater concentration of stars near their centers, often containing arms of stars extending from their central nucleus *Barred spiral galaxies, a type of spiral galaxy that has the stars arra ...
... c. The various types of galaxies include: * Spiral galaxies, which are typically disk-shaped with a somewhat greater concentration of stars near their centers, often containing arms of stars extending from their central nucleus *Barred spiral galaxies, a type of spiral galaxy that has the stars arra ...
Chapter 25 PowerPoint
... nucleus (AGN), located only 10 million light years from us. The black hole at the center of this galaxy is thought to be around 60 million times the mass of our Sun; material around it gets shot off in the form of huge jets which travel at nearly the speed of light and are easily visible in this Cha ...
... nucleus (AGN), located only 10 million light years from us. The black hole at the center of this galaxy is thought to be around 60 million times the mass of our Sun; material around it gets shot off in the form of huge jets which travel at nearly the speed of light and are easily visible in this Cha ...
Integrative Studies 410 Our Place in the Universe
... • increasing temperature at core slows contraction – Luminosity about 1000 times that of the sun – Duration ~ 1 million years – Temperature ~ 1 million K at core, 3,000 K at surface • Still too cool for nuclear fusion! ...
... • increasing temperature at core slows contraction – Luminosity about 1000 times that of the sun – Duration ~ 1 million years – Temperature ~ 1 million K at core, 3,000 K at surface • Still too cool for nuclear fusion! ...
Where is the Sun in the Milk Way?
... • This equaDon shows the effect of the geometrical diluDon of the flux as a funcDon of distance from a star. • It’s also called the “Inverse-‐Square Law” ...
... • This equaDon shows the effect of the geometrical diluDon of the flux as a funcDon of distance from a star. • It’s also called the “Inverse-‐Square Law” ...
The Milky Way - Montgomery College
... • Old (~ 11 billion years), lower-main-sequence stars • Approx. 200 globular clusters in our Milky Way ...
... • Old (~ 11 billion years), lower-main-sequence stars • Approx. 200 globular clusters in our Milky Way ...
Constellation ARA
... Beta Arae is an orange K-type bright giant (possibly supergiant), approximately 603 light years distant. With an apparent magnitude of 2.84, it is the brightest star in the Ara constellation. Alpha Arae, the second brightest star in Ara, is a variable Be star, a B-type star with prominent emission l ...
... Beta Arae is an orange K-type bright giant (possibly supergiant), approximately 603 light years distant. With an apparent magnitude of 2.84, it is the brightest star in the Ara constellation. Alpha Arae, the second brightest star in Ara, is a variable Be star, a B-type star with prominent emission l ...
read in advance to speed your work
... seen when we look in the direction of the constellation of Orion. Begin making an H-R diagram for the stars in Orion (Table II). Plot the MV values (MV again is simply absolute magnitude, M, with the subscript indicating that the magnitude is measured in the visual part of the spectrum) against the ...
... seen when we look in the direction of the constellation of Orion. Begin making an H-R diagram for the stars in Orion (Table II). Plot the MV values (MV again is simply absolute magnitude, M, with the subscript indicating that the magnitude is measured in the visual part of the spectrum) against the ...
14.5 Yellow Giants and Pulsating Stars Variable Stars Not all stars
... Not all stars have a constant luminosity. Stars that change in brightness are called variable stars, and many of these are associated with stages in the evolution of a star. For example, the red giant star Mira changes brightness over a regular period of 332 days (fig. 14.14). The T Tauri stars we d ...
... Not all stars have a constant luminosity. Stars that change in brightness are called variable stars, and many of these are associated with stages in the evolution of a star. For example, the red giant star Mira changes brightness over a regular period of 332 days (fig. 14.14). The T Tauri stars we d ...
Stars: the Hertzsprung
... A ten solar mass star has about ten times the sun's supply of nuclear energy. Its luminosity is 3000 times that of the sun. How does the lifetime of the star compare with that of the ...
... A ten solar mass star has about ten times the sun's supply of nuclear energy. Its luminosity is 3000 times that of the sun. How does the lifetime of the star compare with that of the ...
notes
... • We moved it to an O-type star (T = 30,000 K) and placed it at the same distance that it currently is from our Sun (T = 5800 K) • We moved it to an M-type star (T = 3000 K) and placed it at the same distance that it currently is from our Sun • In each of these cases, where should we place the Earth ...
... • We moved it to an O-type star (T = 30,000 K) and placed it at the same distance that it currently is from our Sun (T = 5800 K) • We moved it to an M-type star (T = 3000 K) and placed it at the same distance that it currently is from our Sun • In each of these cases, where should we place the Earth ...
OVERVIEW: Stars and space
... Using skills, knowledge and understanding of how science works: • to explain how stars are able to maintain their energy output for millions of years • to explain why the early Universe contained only hydrogen but now contains a large variety of different elements. Skills, knowledge and understandin ...
... Using skills, knowledge and understanding of how science works: • to explain how stars are able to maintain their energy output for millions of years • to explain why the early Universe contained only hydrogen but now contains a large variety of different elements. Skills, knowledge and understandin ...
Level 4 Constellations North Star, South Star
... Next to the Big Dipper, Orion is the most well-known constellation of all. Its shape and group of bright stars dominate the winter sky. It contains more bright stars clustered together than any other single group. To the ancients, the figure represented the giant Orion, placed in the heavens, in a h ...
... Next to the Big Dipper, Orion is the most well-known constellation of all. Its shape and group of bright stars dominate the winter sky. It contains more bright stars clustered together than any other single group. To the ancients, the figure represented the giant Orion, placed in the heavens, in a h ...
Week 6
... has a radius 936 times that of the Sun and a surface temperature of 3500 K. What is the luminosity of this star? If Betelgeuse is 640 ly from Earth, what is the brightness of the light from Betelgeuse that reaches Earth? ...
... has a radius 936 times that of the Sun and a surface temperature of 3500 K. What is the luminosity of this star? If Betelgeuse is 640 ly from Earth, what is the brightness of the light from Betelgeuse that reaches Earth? ...
The Hubble Space Telescope - the first 10 years
... • Cosmology and Astronomy is an exciting science entering a golden era of discovery. Soon we will know either the fate of the Universe or we’ll overturn the Big Bang model. Either way its an exciting time and an exciting place to be. ...
... • Cosmology and Astronomy is an exciting science entering a golden era of discovery. Soon we will know either the fate of the Universe or we’ll overturn the Big Bang model. Either way its an exciting time and an exciting place to be. ...
The Galaxy–Dark Matter Connection
... Satellites more concentrated than centrals @ fixed stellar mass. However: Fraction of galaxies with C>3 ~ is the same! Ellipticals are not produced by environmental processes acting on satellites ...
... Satellites more concentrated than centrals @ fixed stellar mass. However: Fraction of galaxies with C>3 ~ is the same! Ellipticals are not produced by environmental processes acting on satellites ...
Serpens
Serpens (""the Serpent"", Greek Ὄφις) is a constellation of the northern hemisphere. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations defined by the International Astronomical Union. It is unique among the modern constellations in being split into two non-contiguous parts, Serpens Caput (Serpent's Head) to the west and Serpens Cauda (Serpent's Tail) to the east. Between these two halves lies the constellation of Ophiuchus, the ""Serpent-Bearer"". In figurative representations, the body of the serpent is represented as passing behind Ophiuchus between Mu Serpentis in Serpens Caput and Nu Serpentis in Serpens Cauda.The brightest star in Serpens is the red giant star Alpha Serpentis, or Unukalhai, in Serpens Caput, with an apparent magnitude of 2.63. Also located in Serpens Caput are the naked-eye globular cluster Messier 5 and the naked-eye variables R Serpentis and Tau4 Serpentis. Notable extragalactic objects include Seyfert's Sextet, one of the densest galaxy clusters known; Arp 220, the prototypical ultraluminous infrared galaxy; and Hoag's Object, the most famous of the very rare class of galaxies known as ring galaxies.Part of the Milky Way's galactic plane passes through Serpens Cauda, which is therefore rich in galactic deep-sky objects, such as the Eagle Nebula (IC 4703) and its associated star cluster Messier 16. The nebula measures 70 light-years by 50 light-years and contains the Pillars of Creation, three dust clouds that became famous for the image taken by the Hubble Space Telescope. Other striking objects include the Red Square Nebula, one of the few objects in astronomy to take on a square shape; and Westerhout 40, a massive nearby star-forming region consisting of a molecular cloud and an H II region.