Far Ultraviolet Spectroscopic Explorer
... Supernovae and their remnants (ghosts!) form a fascinating and complex part of the ongoing process of stellar evolution, energizing and enriching the interstellar ...
... Supernovae and their remnants (ghosts!) form a fascinating and complex part of the ongoing process of stellar evolution, energizing and enriching the interstellar ...
Galaxy Notes Presentation
... Mass is 1,000 to 2,000 billion times the mass of the Sun The Sun lies a little more than 30,000 light years from the center Cannot actually count the number of stars in the galaxy, can estimate as roughly 100 billion ...
... Mass is 1,000 to 2,000 billion times the mass of the Sun The Sun lies a little more than 30,000 light years from the center Cannot actually count the number of stars in the galaxy, can estimate as roughly 100 billion ...
Stars
... The formations appear at different times of the year. Each season earth can view a different sets of constellations. Also the earth views a different set of constellations on the northern and southern hemispheres. Like in August they have different sets of constellations then in April. One of the mo ...
... The formations appear at different times of the year. Each season earth can view a different sets of constellations. Also the earth views a different set of constellations on the northern and southern hemispheres. Like in August they have different sets of constellations then in April. One of the mo ...
The Size and Structure of the Milky Way Galaxy
... • Stars are a small fraction of the mass of major galaxies • The dark matter problem becomes more pronounced as you go out in the universe • The form of the dark matter is unknown; probably not what you studied in chemistry • Possibly/probably an unknown form of elementary particle ...
... • Stars are a small fraction of the mass of major galaxies • The dark matter problem becomes more pronounced as you go out in the universe • The form of the dark matter is unknown; probably not what you studied in chemistry • Possibly/probably an unknown form of elementary particle ...
EXAM II REVIEW - University of Maryland: Department of
... • B. have less hydrogen than low mass stars • C. have less helium than low mass stars • D. release less energy per nuclear reaction than low mass stars ...
... • B. have less hydrogen than low mass stars • C. have less helium than low mass stars • D. release less energy per nuclear reaction than low mass stars ...
1) Data from a Doppler analysis of the sun show a red shift on the
... and a blue shift on the east side. What does that data suggest about the sun? A) B) C) D) ...
... and a blue shift on the east side. What does that data suggest about the sun? A) B) C) D) ...
Powerpoint
... for the densities near the photosphere, hydrogen recombines. The recombination does not occur all at once for the entire envelope, but rather as a wave that propagates inwards in mass – though initially outwards in radius. During this time Rphoto ~ 1015 – 1016 cm. The internal energy deposited by th ...
... for the densities near the photosphere, hydrogen recombines. The recombination does not occur all at once for the entire envelope, but rather as a wave that propagates inwards in mass – though initially outwards in radius. During this time Rphoto ~ 1015 – 1016 cm. The internal energy deposited by th ...
The Life Cycle of Stars Webquest
... Purpose: In this web quest, you will 1. Learn how to identify stars by their magnitude, color, temperature, and spectral class. 2. Investigate the process of nuclear fusion explained by Einstein's famous equation E = mc2 and learn how mass in the form of hydrogen atoms is converted to helium and cau ...
... Purpose: In this web quest, you will 1. Learn how to identify stars by their magnitude, color, temperature, and spectral class. 2. Investigate the process of nuclear fusion explained by Einstein's famous equation E = mc2 and learn how mass in the form of hydrogen atoms is converted to helium and cau ...
Milky Way structure
... the LMC. The discovery was made in data from the 2MASS-sky survey, where infrared light allows a better view through our optically opaque Galactic plane. The labeled illustration above shows the location of the newly discovered Canis Major dwarf and its associated tidal stream of material in relatio ...
... the LMC. The discovery was made in data from the 2MASS-sky survey, where infrared light allows a better view through our optically opaque Galactic plane. The labeled illustration above shows the location of the newly discovered Canis Major dwarf and its associated tidal stream of material in relatio ...
LIGO Star Chart
... Our sun and almost any lights you see in the sky originate from our own discshaped, spiral galaxy called the Milky Way. The Earth and our sun are located away from the center of our galaxy. Often you will be able to see a hazy band of light that seems to run through Cassiopeia. During the summer, pa ...
... Our sun and almost any lights you see in the sky originate from our own discshaped, spiral galaxy called the Milky Way. The Earth and our sun are located away from the center of our galaxy. Often you will be able to see a hazy band of light that seems to run through Cassiopeia. During the summer, pa ...
Mass extinctions and supernova explosions
... might occur by a SN closer than 8pc. However to get a clear picture is rather difficult. The reason is the enormous complexity of the biosphere and the uncertainties of the different parameters involved. Also Gehrels et al. “(Gehrels 2003)” point out, that only since between around 600Ma and 500Ma b ...
... might occur by a SN closer than 8pc. However to get a clear picture is rather difficult. The reason is the enormous complexity of the biosphere and the uncertainties of the different parameters involved. Also Gehrels et al. “(Gehrels 2003)” point out, that only since between around 600Ma and 500Ma b ...
Team 6 Presentation
... Barred spiral galaxy- bar of stars, spiral arms from end of bar Elliptical galaxy- elliptical shape, older stars Irregular galaxy ...
... Barred spiral galaxy- bar of stars, spiral arms from end of bar Elliptical galaxy- elliptical shape, older stars Irregular galaxy ...
Chapter 13
... 13. Three terrestrial-sized planets in orbits of a fraction of an AU have been found near A) Cygnus X-1. B) a magnetar. C) a millisecond pulsar. D) a white dwarf. E) Supernova 1987A. ...
... 13. Three terrestrial-sized planets in orbits of a fraction of an AU have been found near A) Cygnus X-1. B) a magnetar. C) a millisecond pulsar. D) a white dwarf. E) Supernova 1987A. ...
The night sky in October and November
... Near Andromeda lies the Great Nebula, also known as the Andromeda Galaxy, which can be seen on a clear, moonless night without binoculars or telescope. Draw a line from the second highest pair of stars and about equal to the distance between them. You should see a hazy patch of light. It also is kno ...
... Near Andromeda lies the Great Nebula, also known as the Andromeda Galaxy, which can be seen on a clear, moonless night without binoculars or telescope. Draw a line from the second highest pair of stars and about equal to the distance between them. You should see a hazy patch of light. It also is kno ...
X-RAYS AND GRAVITATIONAL WAVES: LIGO AND VIRGO POINT
... magnetic fields. These waves are commonly known as light, although only a small portion of EM wavelengths can be seen by the human eye. In order of increasing energy, the kinds of EM light include: radio, visible (optical), UV (ultraviolet), X-rays, Gamma-rays. false alarm probability: the probabili ...
... magnetic fields. These waves are commonly known as light, although only a small portion of EM wavelengths can be seen by the human eye. In order of increasing energy, the kinds of EM light include: radio, visible (optical), UV (ultraviolet), X-rays, Gamma-rays. false alarm probability: the probabili ...
Things to know: This meant as a guide to what you should know. I
... What unusual distortions in time and space are experienced when one moves at speeds near the speed of light? What is gravity in Einstein’s general theory of relativity? What is all matter made of (what are leptons, baryons, quarks)? What is the evidence for the big bang? What is the cosmic microwave ...
... What unusual distortions in time and space are experienced when one moves at speeds near the speed of light? What is gravity in Einstein’s general theory of relativity? What is all matter made of (what are leptons, baryons, quarks)? What is the evidence for the big bang? What is the cosmic microwave ...
Astronomy Unit 4 Galaxies
... 34. The redshift caused by the expansion of the universe. ______________________ 35. Hubble’s Constant tells astronomers how _______________ the universe is expanding. 36. The approximate age of the universe determined by using Hubble’s Constant. __________________________________ 37. The distribut ...
... 34. The redshift caused by the expansion of the universe. ______________________ 35. Hubble’s Constant tells astronomers how _______________ the universe is expanding. 36. The approximate age of the universe determined by using Hubble’s Constant. __________________________________ 37. The distribut ...
Australia-France PhD projects
... o Opto-acoustic interactions can be used to create new types of optical cavity with unique properties. One application can create a white light cavity: a low loss optical cavity that is resonant over a broad band of frequencies. This apparently contradictory phenomenon is possible because of the spe ...
... o Opto-acoustic interactions can be used to create new types of optical cavity with unique properties. One application can create a white light cavity: a low loss optical cavity that is resonant over a broad band of frequencies. This apparently contradictory phenomenon is possible because of the spe ...
Astronomy 10B List of Concepts– by Chapter
... • The H-R diagram and star formation • Finding the age of star clusters and the H-R diagram • Planetary formation CHAPTER 13: STELLAR EVOLUTION • The main sequence (M.S.) o What are these stars doing? o How long will they be doing this (what fraction of their lives)? o Relation between stellar mass ...
... • The H-R diagram and star formation • Finding the age of star clusters and the H-R diagram • Planetary formation CHAPTER 13: STELLAR EVOLUTION • The main sequence (M.S.) o What are these stars doing? o How long will they be doing this (what fraction of their lives)? o Relation between stellar mass ...
2. A giant hand took one of the planets discovered
... 2. A giant hand took one of the planets discovered around other stars and put it in the solar system at the same distance from the sun as from its star. The mass of the planet is approximately that of Jupiter and the orbit is approximately that of Earth. These are the “hot Jupiters”, as big as Jupit ...
... 2. A giant hand took one of the planets discovered around other stars and put it in the solar system at the same distance from the sun as from its star. The mass of the planet is approximately that of Jupiter and the orbit is approximately that of Earth. These are the “hot Jupiters”, as big as Jupit ...
Infinity Express
... MS-ESS1- Analyze and interpret data to determine scale properties of objects in the solar ...
... MS-ESS1- Analyze and interpret data to determine scale properties of objects in the solar ...
Gamma-ray burst
Gamma-ray bursts (GRBs) are flashes of gamma rays associated with extremely energetic explosions that have been observed in distant galaxies. They are the brightest electromagnetic events known to occur in the universe. Bursts can last from ten milliseconds to several hours. The initial burst is usually followed by a longer-lived ""afterglow"" emitted at longer wavelengths (X-ray, ultraviolet, optical, infrared, microwave and radio).Most observed GRBs are believed to consist of a narrow beam of intense radiation released during a supernova or hypernova as a rapidly rotating, high-mass star collapses to form a neutron star, quark star, or black hole. A subclass of GRBs (the ""short"" bursts) appear to originate from a different process – this may be due to the merger of binary neutron stars. The cause of the precursor burst observed in some of these short events may be due to the development of a resonance between the crust and core of such stars as a result of the massive tidal forces experienced in the seconds leading up to their collision, causing the entire crust of the star to shatter.The sources of most GRBs are billions of light years away from Earth, implying that the explosions are both extremely energetic (a typical burst releases as much energy in a few seconds as the Sun will in its entire 10-billion-year lifetime) and extremely rare (a few per galaxy per million years). All observed GRBs have originated from outside the Milky Way galaxy, although a related class of phenomena, soft gamma repeater flares, are associated with magnetars within the Milky Way. It has been hypothesized that a gamma-ray burst in the Milky Way, pointing directly towards the Earth, could cause a mass extinction event.GRBs were first detected in 1967 by the Vela satellites, a series of satellites designed to detect covert nuclear weapons tests. Hundreds of theoretical models were proposed to explain these bursts in the years following their discovery, such as collisions between comets and neutron stars. Little information was available to verify these models until the 1997 detection of the first X-ray and optical afterglows and direct measurement of their redshifts using optical spectroscopy, and thus their distances and energy outputs. These discoveries, and subsequent studies of the galaxies and supernovae associated with the bursts, clarified the distance and luminosity of GRBs. These facts definitively placed them in distant galaxies and also connected long GRBs with the explosion of massive stars, the only possible source for the energy outputs observed.