Tasks - ESA Science
... Astronomy is an accessible and visual science, making it ideal for educational purposes. Over the last few years the NASA/ESA Hubble Space Telescope and the ESO telescopes at the La Silla and Paranal Observatories in Chile have presented ever deeper and more spectacular views of the Universe. Howeve ...
... Astronomy is an accessible and visual science, making it ideal for educational purposes. Over the last few years the NASA/ESA Hubble Space Telescope and the ESO telescopes at the La Silla and Paranal Observatories in Chile have presented ever deeper and more spectacular views of the Universe. Howeve ...
February - Amateur Telescope Makers of Boston
... the approaching darkness is a dim Jupiter peering through the dusk, soon to be the brightest object in the sky – shining like a diamond. Jupiter is at or near opposition now and therefore it is a great time to get out and view it telescopically as well as visually. Being that it is so big it is cert ...
... the approaching darkness is a dim Jupiter peering through the dusk, soon to be the brightest object in the sky – shining like a diamond. Jupiter is at or near opposition now and therefore it is a great time to get out and view it telescopically as well as visually. Being that it is so big it is cert ...
Test #4
... a) Their spectra strongly resemble the spectra of stars. b) They are ordinary stars located at vast distances from Earth. c) They look like stars on photographs. d) Like the stars visible in our night sky, quasars reside within the boundaries of the Milky Way. 9. What is implied about an active gala ...
... a) Their spectra strongly resemble the spectra of stars. b) They are ordinary stars located at vast distances from Earth. c) They look like stars on photographs. d) Like the stars visible in our night sky, quasars reside within the boundaries of the Milky Way. 9. What is implied about an active gala ...
Activity 1 - Mathematical and Scientific Methods
... 65% of your grade will come from active involvement! ...
... 65% of your grade will come from active involvement! ...
Exam 3 Study Guide
... The Tully-Fisher relationship relates ____________ to _______________. The M-sigma relationship allows one to use the stellar velocity dispersion of the bulge to measure the ______________. The theoretical upper limit for the mass of a super massive black hole is _______________. A quasar is a type ...
... The Tully-Fisher relationship relates ____________ to _______________. The M-sigma relationship allows one to use the stellar velocity dispersion of the bulge to measure the ______________. The theoretical upper limit for the mass of a super massive black hole is _______________. A quasar is a type ...
HST Key Project to Measure the Hubble Constant from
... white dwarf limit Should have same luminosity because come from stars of same mass that explode in same way Determine true luminosity by using CVs to measure distance to galaxies Confirm L of all WD SNs are about the same BRIGHT: 10 bill solar luminosities at peak, detect ~ 10 bill lt-yrs away But, ...
... white dwarf limit Should have same luminosity because come from stars of same mass that explode in same way Determine true luminosity by using CVs to measure distance to galaxies Confirm L of all WD SNs are about the same BRIGHT: 10 bill solar luminosities at peak, detect ~ 10 bill lt-yrs away But, ...
white dwarf supernova
... The nova shines for a few weeks, as brightly as 100,000 Suns at its peak ...
... The nova shines for a few weeks, as brightly as 100,000 Suns at its peak ...
CONSTELLATION CANES VENATICI the two hunting dogs Canes
... voids. It was discovered in 1988 in a deep-sky survey. • Canes Venatici contains five Messier objects, including four galaxies. The more significant are • the Whirlpool Galaxy (M51, NGC 5194) and NGC 5195, a small barred spiral galaxy that is seen face on. This was the first galaxy recognised as hav ...
... voids. It was discovered in 1988 in a deep-sky survey. • Canes Venatici contains five Messier objects, including four galaxies. The more significant are • the Whirlpool Galaxy (M51, NGC 5194) and NGC 5195, a small barred spiral galaxy that is seen face on. This was the first galaxy recognised as hav ...
Astronomy 12 - hrsbstaff.ednet.ns.ca
... Sun will burn hydrogen into helium in its core. Assume that the Sun was initially entirely composed of hydrogen, and that the Sun's current mass was its mass before main-sequence burning. You will use some known properties of the Sun, and the knowledge that the Sun fuses hydrogen into helium. (i) Fr ...
... Sun will burn hydrogen into helium in its core. Assume that the Sun was initially entirely composed of hydrogen, and that the Sun's current mass was its mass before main-sequence burning. You will use some known properties of the Sun, and the knowledge that the Sun fuses hydrogen into helium. (i) Fr ...
PDF Version
... time always has the same shape. What makes them very useful is that the period of the variation, which is the amount of time before the star’s brightness curve repeats itself, varies with the star’s intrinsic brightness. The star’s apparent brightness, which is the brightness that we can see ourselv ...
... time always has the same shape. What makes them very useful is that the period of the variation, which is the amount of time before the star’s brightness curve repeats itself, varies with the star’s intrinsic brightness. The star’s apparent brightness, which is the brightness that we can see ourselv ...
answers2008_09_BC
... loses mass through stellar wind. Eventually all outer layers will be lost, forming a planetary nebula, and He fusion will stop; central carbon core will survive to radiate its stored heat as a white dwarf (bottom left of HRD) ...
... loses mass through stellar wind. Eventually all outer layers will be lost, forming a planetary nebula, and He fusion will stop; central carbon core will survive to radiate its stored heat as a white dwarf (bottom left of HRD) ...
Super Giant
... The two factors that determine the force of gravity are mass and distance. What relationship exists between the speed of the galaxies moving apart and their initial distance from one another? Name and DESCRIBE this law. The further away the galaxy is, the faster it is moving- Hubble’s Law Explain ho ...
... The two factors that determine the force of gravity are mass and distance. What relationship exists between the speed of the galaxies moving apart and their initial distance from one another? Name and DESCRIBE this law. The further away the galaxy is, the faster it is moving- Hubble’s Law Explain ho ...
Lecture 17: General Relativity and Black Holes
... (e) gas and dust 5. Modern representations of the galaxy place Population II stars (a) only in the halo (b) only in the disk (c) in the halo and the central bulge (d) only at galactic center 1. Although space telescopes provide better quality observations, Earth-based telescopes are able to observe ...
... (e) gas and dust 5. Modern representations of the galaxy place Population II stars (a) only in the halo (b) only in the disk (c) in the halo and the central bulge (d) only at galactic center 1. Although space telescopes provide better quality observations, Earth-based telescopes are able to observe ...
PC2491 Examples 2
... Show that, using reasonable arguments, the ‘half light radius’ (Re) of an elliptical galaxy mass M, luminosity L is related to the stellar dispersion (the average surface brightness within Re (e) via ...
... Show that, using reasonable arguments, the ‘half light radius’ (Re) of an elliptical galaxy mass M, luminosity L is related to the stellar dispersion (the average surface brightness within Re (e) via ...
M = 5.5 - The Millstone
... Absolute Magnitude, we must have a measure of the stellar distance (by other means). Absolute magnitude, M, expresses the brightness of a star as it would be if it were placed 10 parsecs away. Since all stars would be placed at the same distance, absolute magnitudes show differences in actual lumino ...
... Absolute Magnitude, we must have a measure of the stellar distance (by other means). Absolute magnitude, M, expresses the brightness of a star as it would be if it were placed 10 parsecs away. Since all stars would be placed at the same distance, absolute magnitudes show differences in actual lumino ...
neutron star - The University of Chicago
... ➢ Multi-dimensional supercomputer simulations key to understanding core-collapse SNe. ➢ Neutrinos are emitted en-masse during core-collapse and play an important role in reviving the SN shock BUT even small changes in the neutrino heating can halt the explosion. ➢ Proper 3D initial conditions play a ...
... ➢ Multi-dimensional supercomputer simulations key to understanding core-collapse SNe. ➢ Neutrinos are emitted en-masse during core-collapse and play an important role in reviving the SN shock BUT even small changes in the neutrino heating can halt the explosion. ➢ Proper 3D initial conditions play a ...
2012 New York State Science Olympiad Astronomy
... b. Calculate the distance in parsecs to this hypothetical star, if it appears to have a magnitude of 10. Do not account for interstellar extinction (3 points).4 ...
... b. Calculate the distance in parsecs to this hypothetical star, if it appears to have a magnitude of 10. Do not account for interstellar extinction (3 points).4 ...
The extragalactic universe and distance measurements
... – Tried to determine distribution of stars in Milky Way – described Milky Way as “detached nebula”, with Sun near center. – Thought that the nebulae could be similar systems – Turns out that his conclusions were heavily effected by dust in the Milky Way – Milky Way is much bigger and better ordered ...
... – Tried to determine distribution of stars in Milky Way – described Milky Way as “detached nebula”, with Sun near center. – Thought that the nebulae could be similar systems – Turns out that his conclusions were heavily effected by dust in the Milky Way – Milky Way is much bigger and better ordered ...
Micro_lect20a
... Orionis, one of the brightest stars in the familiar constellation of Orion, the Hunter. 4. The name Betelgeuse is Arabic in origin. As a massive red supergiant, it is nearing the end of its life and will soon become a supernova. In this historic image, a bright hotspot is revealed on the star's surf ...
... Orionis, one of the brightest stars in the familiar constellation of Orion, the Hunter. 4. The name Betelgeuse is Arabic in origin. As a massive red supergiant, it is nearing the end of its life and will soon become a supernova. In this historic image, a bright hotspot is revealed on the star's surf ...
High Mass Stars
... – From H-R diagram its luminosity is 100000 times greater than the Sun’s. – It therefore burns fuel (uses it’s mass) 100000 times faster than the Sun. – It has 25 times the mass of the Sun so its lifetime will be 25/100000 = 0.00025 times than the Sun’s lifetime = 2.5 million years. ...
... – From H-R diagram its luminosity is 100000 times greater than the Sun’s. – It therefore burns fuel (uses it’s mass) 100000 times faster than the Sun. – It has 25 times the mass of the Sun so its lifetime will be 25/100000 = 0.00025 times than the Sun’s lifetime = 2.5 million years. ...
slides
... record-holder is 716 times per second). They can also emit pulses of radio waves every time the rotate. ...
... record-holder is 716 times per second). They can also emit pulses of radio waves every time the rotate. ...
March
... standard planetary nebula with a 16th magnitude central star. The unusual appearance is due to the angle of the nebular ring that is expanding outward from the white dwarf at about 42 K/sec. Most of the visible light is emitted in the OIII doubly ionized Oxygen band so the use of a nebula or OIII fi ...
... standard planetary nebula with a 16th magnitude central star. The unusual appearance is due to the angle of the nebular ring that is expanding outward from the white dwarf at about 42 K/sec. Most of the visible light is emitted in the OIII doubly ionized Oxygen band so the use of a nebula or OIII fi ...
supernova remnants: a link between massive stars and the
... RELATE TO THE PROGENITOR HISTORY AND TO THE SNR? After the explosion the information comes from the study of light curves and of early and late times spectra. On these basis, SNe from massive stars can be divided into four categories, depending on the amount of mass lost during the stellar evolution ...
... RELATE TO THE PROGENITOR HISTORY AND TO THE SNR? After the explosion the information comes from the study of light curves and of early and late times spectra. On these basis, SNe from massive stars can be divided into four categories, depending on the amount of mass lost during the stellar evolution ...
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.