The Scales of Things
... The Solar Neighborhood Some stars are within about 2 x 1014 km (~ 20 light-years) ...
... The Solar Neighborhood Some stars are within about 2 x 1014 km (~ 20 light-years) ...
1” “Sky-Notes” of the Open University Astronomy Club. April 2005
... NGC3190 (11.0) sg and NGC3193 (10.9) eg. Pair of galaxies located mid-way between and . NGC3226 (11.4) and NGC3227 (10.8) about 1o east of form a close interacting pair of galaxies. NGC3351 (M95) (9.7) sg, NGC 3368 (M96) (9.2) sg and NGC 3379 (M105) (9.3) eg. An excellent trio in the same low p ...
... NGC3190 (11.0) sg and NGC3193 (10.9) eg. Pair of galaxies located mid-way between and . NGC3226 (11.4) and NGC3227 (10.8) about 1o east of form a close interacting pair of galaxies. NGC3351 (M95) (9.7) sg, NGC 3368 (M96) (9.2) sg and NGC 3379 (M105) (9.3) eg. An excellent trio in the same low p ...
Prof. Kenney C lass 8 September 26, 2016
... • all chapter assignments starting with ch 21 on are shifted by 1 in 10th edition relative to 8th, 9th editions (neutron stars had own chapter 21 in 8th & 9th, in 10th is part of ch 20 on “deaths of stars”) ...
... • all chapter assignments starting with ch 21 on are shifted by 1 in 10th edition relative to 8th, 9th editions (neutron stars had own chapter 21 in 8th & 9th, in 10th is part of ch 20 on “deaths of stars”) ...
Mysterious transient objects - NCRA
... Energy emitted 1051 ergs (1029 times more than an atmospheric nuclear explosion) Shines brighter than the host Galaxy As much energy in 1 month as sun in ~1 billion years In universe 8 supernova explosions every second Thermonuclear and gravitational collapse ...
... Energy emitted 1051 ergs (1029 times more than an atmospheric nuclear explosion) Shines brighter than the host Galaxy As much energy in 1 month as sun in ~1 billion years In universe 8 supernova explosions every second Thermonuclear and gravitational collapse ...
galaxy.
... be measured directly, determining the period of a Cepheid variable gives a precise measurement of its distance. Using present-day data, it is about 700,000 pc from us. It can be seen with the naked eye. ...
... be measured directly, determining the period of a Cepheid variable gives a precise measurement of its distance. Using present-day data, it is about 700,000 pc from us. It can be seen with the naked eye. ...
More detailed notes - Particle Physics and Particle Astrophysics
... Although the outer layers expand, the core does not (if anything, it contracts), and it also becomes more massive as the hydrogen-fusing shell produces more helium. The result is that the star never really becomes fully stable: it continues to expand and cool, initially at approximately constant lum ...
... Although the outer layers expand, the core does not (if anything, it contracts), and it also becomes more massive as the hydrogen-fusing shell produces more helium. The result is that the star never really becomes fully stable: it continues to expand and cool, initially at approximately constant lum ...
WEEK 8: CSI UCSC: ASTRO EDITION SOLUTIONS This week you
... (1) Compare Types I and II supernovae. What kinds of objects explode and what are their explosion mechanisms? There are two main types. The first one is Type Ia supernova, which comes from a white dwarf in a binary system with another star. A white dwarf may steal material from the companion star, a ...
... (1) Compare Types I and II supernovae. What kinds of objects explode and what are their explosion mechanisms? There are two main types. The first one is Type Ia supernova, which comes from a white dwarf in a binary system with another star. A white dwarf may steal material from the companion star, a ...
Mapping the Stars
... point at which all of its particles are neutrons. • What is a spinning neutron star called? • Pulsar ...
... point at which all of its particles are neutrons. • What is a spinning neutron star called? • Pulsar ...
Chapter 15, Galaxies
... Because the mass of white dwarfs when they explode as supernovae is always around 1.0 M⊙, its luminosity is very consistent, and can be used as a standard candle for the measurement of distance to distant galaxies (Chapter 15). The amount of energy produced by white dwarf supernovae and massive star ...
... Because the mass of white dwarfs when they explode as supernovae is always around 1.0 M⊙, its luminosity is very consistent, and can be used as a standard candle for the measurement of distance to distant galaxies (Chapter 15). The amount of energy produced by white dwarf supernovae and massive star ...
Final Stages of Stellar Evolution - supernovae and the synthesis of
... stellar explosion which involves the whole star two mechanisms stars with Mstar > 8 · M → after extinction of nuclear fuel → core collapse white dwarfs with Mstar < 8 · M in binary system with red giant → accretion of matter → multiple nova explosions → supernova ...
... stellar explosion which involves the whole star two mechanisms stars with Mstar > 8 · M → after extinction of nuclear fuel → core collapse white dwarfs with Mstar < 8 · M in binary system with red giant → accretion of matter → multiple nova explosions → supernova ...
Announcements - Lick Observatory
... Do we have all this right? • How do we check all this out? (1) Star clusters are perfect because they contain stars in many of the evolutionary phases. Can test timescale, surface temperature and luminosity predictions. After 30 years of testing, it looks like we understand the basic evolution of s ...
... Do we have all this right? • How do we check all this out? (1) Star clusters are perfect because they contain stars in many of the evolutionary phases. Can test timescale, surface temperature and luminosity predictions. After 30 years of testing, it looks like we understand the basic evolution of s ...
Hubble Diagram Instruction Sheet
... The Hubble diagram demonstrated that a galaxy’s redshift increased linearly with its distance from Earth. The farther away a galaxy is, the faster it moves away from us. The simplest explanation for Hubble’s observation was that the entire universe is expanding, just as Einstein's equations predicte ...
... The Hubble diagram demonstrated that a galaxy’s redshift increased linearly with its distance from Earth. The farther away a galaxy is, the faster it moves away from us. The simplest explanation for Hubble’s observation was that the entire universe is expanding, just as Einstein's equations predicte ...
17Nov_2014
... electrons merge into neutrons, taking energy away from the core • The core collapses, and the layers above fall rapidly toward the center, where they collide with the core material and “bounce” • The “bounced material collides with the remaining infalling gas, raising temperatures high enough to set ...
... electrons merge into neutrons, taking energy away from the core • The core collapses, and the layers above fall rapidly toward the center, where they collide with the core material and “bounce” • The “bounced material collides with the remaining infalling gas, raising temperatures high enough to set ...
Figure 1
... the central region of NGC5253, located at 3.7 Mpc distance, using a combination of WFC3 and ACS images. The 10 brightest clusters and the most dust-attenuated cluster (# 11) are marked by yellow circles and numbered. The size of the circles matches the size of the apertures used for photometric meas ...
... the central region of NGC5253, located at 3.7 Mpc distance, using a combination of WFC3 and ACS images. The 10 brightest clusters and the most dust-attenuated cluster (# 11) are marked by yellow circles and numbered. The size of the circles matches the size of the apertures used for photometric meas ...
How Big Is Our Universe? - Harvard
... galaxies not as they are today, but as they looked long before there was life on Earth. Some galaxies are so far away that they appear as tiny smudges, even through the largest telescopes. It’s tough to determine how large or bright these fuzzy distant galaxies are. But astronomers can figure out th ...
... galaxies not as they are today, but as they looked long before there was life on Earth. Some galaxies are so far away that they appear as tiny smudges, even through the largest telescopes. It’s tough to determine how large or bright these fuzzy distant galaxies are. But astronomers can figure out th ...
2014 State Test
... D6. (2 pts) The measured parallax of this star is 1.26 milliarcseconds. What is the distance to this star in parsecs? Give your answer to three significant figures. D7. (2 pts) What is the distance modulus associated with the distance you calculated in D6? If you didn’t get an answer to D6 or don’t ...
... D6. (2 pts) The measured parallax of this star is 1.26 milliarcseconds. What is the distance to this star in parsecs? Give your answer to three significant figures. D7. (2 pts) What is the distance modulus associated with the distance you calculated in D6? If you didn’t get an answer to D6 or don’t ...
May
... known as the Hockey Stick Galaxy, the key features are the angled tilt of the disk and the apparent offset of the core. If observing at low magnification look in the same field of view for NGC4631, a more distant galaxy also seen edge-on. M64 is a type Sb spiral galaxy in the constellation Coma Bere ...
... known as the Hockey Stick Galaxy, the key features are the angled tilt of the disk and the apparent offset of the core. If observing at low magnification look in the same field of view for NGC4631, a more distant galaxy also seen edge-on. M64 is a type Sb spiral galaxy in the constellation Coma Bere ...
WHERE DO ELEMENTS COME FROM?
... heat present during the first few minutes is still present in the universe • The universe should have now expanded and be on average only a few Kelvins hot • The wave length of this radiation should be in the range of microwaves ...
... heat present during the first few minutes is still present in the universe • The universe should have now expanded and be on average only a few Kelvins hot • The wave length of this radiation should be in the range of microwaves ...
The Stellar Cycle
... • The resulting outward pressure which keeps the electrons apart is called electron degeneracy pressure – this is what balances the weight. • Only if more energy drives the electrons into higher energy states, can the density increase. • Adding mass can drive electrons to higher energies so star shr ...
... • The resulting outward pressure which keeps the electrons apart is called electron degeneracy pressure – this is what balances the weight. • Only if more energy drives the electrons into higher energy states, can the density increase. • Adding mass can drive electrons to higher energies so star shr ...
Early Spring Observing – Millstone News Night Sky
... Instrinsic Luminousity Betelguese (red supergiant), Rigel(blue-white hot supergiant)) Here we see the bright giant stars of Orion, and with some optical aids, many open Clusters lying in the dusty lanes of the Milky Way Galaxy. Next month around about this time, the Winter Milky Way will be setting ...
... Instrinsic Luminousity Betelguese (red supergiant), Rigel(blue-white hot supergiant)) Here we see the bright giant stars of Orion, and with some optical aids, many open Clusters lying in the dusty lanes of the Milky Way Galaxy. Next month around about this time, the Winter Milky Way will be setting ...
matthewchristianstarprodject
... Its faint luminosity comes from the emission of http://antwrp.gsfc.nasa.gov/apod/image/9612/ngc2440 _hst2.jpg stored thermal energy. White dwarfs comprise roughly 6% of all known stars in the solar neighborhood. The unusual faintness of white dwarfs was first recognized in 1910 by Henry Norris Russe ...
... Its faint luminosity comes from the emission of http://antwrp.gsfc.nasa.gov/apod/image/9612/ngc2440 _hst2.jpg stored thermal energy. White dwarfs comprise roughly 6% of all known stars in the solar neighborhood. The unusual faintness of white dwarfs was first recognized in 1910 by Henry Norris Russe ...
ppt
... Measure the spectrum of light from the galaxy. Look for characteristic “fingerprint” in the spectrum whose wavelengths are known from lab experiments. Measure actual wavelength and interpret shift as due to Doppler effect. ...
... Measure the spectrum of light from the galaxy. Look for characteristic “fingerprint” in the spectrum whose wavelengths are known from lab experiments. Measure actual wavelength and interpret shift as due to Doppler effect. ...
The Planetarium Fleischmann Planetarium
... turbulent region. The supernova remnant is a member of N 63, a star-forming region in the Large Magellanic Cloud (LMC). Visible from the southern hemisphere, the LMC is an irregular galaxy lying 160,000 light-years from our own Milky Way galaxy. The LMC provides excellent examples of active star for ...
... turbulent region. The supernova remnant is a member of N 63, a star-forming region in the Large Magellanic Cloud (LMC). Visible from the southern hemisphere, the LMC is an irregular galaxy lying 160,000 light-years from our own Milky Way galaxy. The LMC provides excellent examples of active star for ...
History of supernova observation
The known history of supernova observation goes back to 185 CE, when, supernova SN 185 appeared, the oldest appearance of a supernova recorded by humankind. Several additional supernovae within the Milky Way galaxy have been recorded since that time, with SN 1604 being the most recent supernova to be observed in this galaxy.Since the development of the telescope, the field of supernova discovery has expanded to other galaxies. These occurrences provide important information on the distances of galaxies. Successful models of supernova behavior have also been developed, and the role of supernovae in the star formation process is now increasingly understood.