Presentation available here - Lunar and Planetary Institute
... All core collapse explosions are asymmetric, maybe produced by magnetic jets. How can this be proved? Gamma-ray bursts are caused by jets of material moving at nearly the speed of light. Do they mark the birth of black holes? At least some gamma-ray bursts (and maybe all) arise in supernova ex ...
... All core collapse explosions are asymmetric, maybe produced by magnetic jets. How can this be proved? Gamma-ray bursts are caused by jets of material moving at nearly the speed of light. Do they mark the birth of black holes? At least some gamma-ray bursts (and maybe all) arise in supernova ex ...
P10263v1.2 Lab 6 Text
... When finding the distance to the Pleiades cluster, we used the spectral type information for individual stars in the cluster. That information translated into an estimate of the absolute luminosity. Combined with the measured apparent luminosity and an estimate of “X”, we were able to find the dista ...
... When finding the distance to the Pleiades cluster, we used the spectral type information for individual stars in the cluster. That information translated into an estimate of the absolute luminosity. Combined with the measured apparent luminosity and an estimate of “X”, we were able to find the dista ...
Milky Way thin disk
... Age and metallicity • Bulge/bar stars are old: of order 10 Gyr • They are also metal-rich; more so than the disk near the Sun • However, so are inner disk stars ...
... Age and metallicity • Bulge/bar stars are old: of order 10 Gyr • They are also metal-rich; more so than the disk near the Sun • However, so are inner disk stars ...
The Constellations
... • Star pattern repeats itself about every 24 hours… because of the rotation of Earth with respect to the distant stars! • Star pattern in the winter is different from that in the summer… because of the revolution of Earth around the Sun! • Stars do move back a nd forth (a teeny-tiny bit) in the sky ...
... • Star pattern repeats itself about every 24 hours… because of the rotation of Earth with respect to the distant stars! • Star pattern in the winter is different from that in the summer… because of the revolution of Earth around the Sun! • Stars do move back a nd forth (a teeny-tiny bit) in the sky ...
Stellar Evolution after the Main Sequence
... brief seconds of the Supernova explosion when there is more than enough energy ...
... brief seconds of the Supernova explosion when there is more than enough energy ...
Paush – Indication of Weather Here I would like to
... declination changes from south to north, is the vernal equinox. It is in this way that the reference point ϒ, from which are measured the right ascensions of the stars, is obtained. Thus if X is a star, its right ascension is ϒD or a measured along the equator from ϒ eastwards, and its declination δ ...
... declination changes from south to north, is the vernal equinox. It is in this way that the reference point ϒ, from which are measured the right ascensions of the stars, is obtained. Thus if X is a star, its right ascension is ϒD or a measured along the equator from ϒ eastwards, and its declination δ ...
Astronomy Unit 4 Galaxies
... 37. The distribution of galaxies in the universe is not ___________________, but clusters of galaxies lie within structures called ___________________ which surround empty regions called __________________. 38. Galaxies that are brighter than normal are called __________________________ and emit mos ...
... 37. The distribution of galaxies in the universe is not ___________________, but clusters of galaxies lie within structures called ___________________ which surround empty regions called __________________. 38. Galaxies that are brighter than normal are called __________________________ and emit mos ...
ASTR 1101-001 Spring 2008 - Louisiana State University
... Transient Events (in time) also occur ...
... Transient Events (in time) also occur ...
angular measure - Empyrean Quest Publishers
... – the distance at which 1 AU subtends an angle of 1 arcsec ...
... – the distance at which 1 AU subtends an angle of 1 arcsec ...
Stars Part 1
... between height and weight for humans. - now add to your plot the population of basketball players who are very tall and very thin. - now add the population of obese children •The plot would show a cluster of people that would have similar “middle-of-the-road” height/weight ratios •It would also show ...
... between height and weight for humans. - now add to your plot the population of basketball players who are very tall and very thin. - now add the population of obese children •The plot would show a cluster of people that would have similar “middle-of-the-road” height/weight ratios •It would also show ...
Astronomy Powerpoint
... • Stars with masses similar to the sun evolve in essentially the same way as low-mass stars. • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their bloated outer layer, creating an expanding round cloud of gas called planetary nebula. ...
... • Stars with masses similar to the sun evolve in essentially the same way as low-mass stars. • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their bloated outer layer, creating an expanding round cloud of gas called planetary nebula. ...
Lecture 1 – Astronomy
... For thousands of years humans have gazed at the night sky and wondered about the universe. They did not know that the starts were just as our own Sun, that we are part of a large galaxy and that there are billions of other galaxies. With only our own eyes we would not have any possibility to discove ...
... For thousands of years humans have gazed at the night sky and wondered about the universe. They did not know that the starts were just as our own Sun, that we are part of a large galaxy and that there are billions of other galaxies. With only our own eyes we would not have any possibility to discove ...
December 2015
... Its starry evergreen tree shape was later given an official chart name by L.S. Copeland. In addition to the open cluster there are surrounding patches of glowing gas and dust that form an emission nebula some 20 light years long. At a distance of 2,500 light years it’s not as visible to the naked ey ...
... Its starry evergreen tree shape was later given an official chart name by L.S. Copeland. In addition to the open cluster there are surrounding patches of glowing gas and dust that form an emission nebula some 20 light years long. At a distance of 2,500 light years it’s not as visible to the naked ey ...
SUMMARY White dwarfs, neutron stars, and black holes are the
... 1. (15.1) Some astronomers have suggested that cooled white dwarfs are made of diamond. Why might it be impractical to mine them? 2. (15.1) Is a white dwarf significantly different from the core of a lowmass mainsequence star? Thinking about how the speed of stellar evolution relates to the mass o ...
... 1. (15.1) Some astronomers have suggested that cooled white dwarfs are made of diamond. Why might it be impractical to mine them? 2. (15.1) Is a white dwarf significantly different from the core of a lowmass mainsequence star? Thinking about how the speed of stellar evolution relates to the mass o ...
Lecture 10: The Hertzsprung
... See also Figure 19-21 in your book There is a mass-luminosity relation on the main sequence. We can use that + a sample of stars where we get all the stars within a certain distance of the Sun to figure out how many stars of what masses are out there. Answer: Lots of low-mass stars! Very few high-m ...
... See also Figure 19-21 in your book There is a mass-luminosity relation on the main sequence. We can use that + a sample of stars where we get all the stars within a certain distance of the Sun to figure out how many stars of what masses are out there. Answer: Lots of low-mass stars! Very few high-m ...
Physics@Brock - Brock University
... (b) the emission nebulae. (c) the planetary nebulae. (d) the giant molecular clouds. ...
... (b) the emission nebulae. (c) the planetary nebulae. (d) the giant molecular clouds. ...
Lecture 2 - The University Centre in Svalbard
... For thousands of years humans have gazed at the night sky and wondered about the universe. They did not know that the starts were just as our own Sun, that we are part of a large galaxy and that there are billions of other galaxies. With only our own eyes we would not have any possibility to discove ...
... For thousands of years humans have gazed at the night sky and wondered about the universe. They did not know that the starts were just as our own Sun, that we are part of a large galaxy and that there are billions of other galaxies. With only our own eyes we would not have any possibility to discove ...
SNC 1D - othsmath
... the next layers outward. Stars rotate. They rotate faster in the middle than they do at the poles A vast cloud of gas and thought to be the birthplace of stars and planets. The hot, condensed object at the centre of a nebula; very young star. The process of energy production in which hydrogen nuclei ...
... the next layers outward. Stars rotate. They rotate faster in the middle than they do at the poles A vast cloud of gas and thought to be the birthplace of stars and planets. The hot, condensed object at the centre of a nebula; very young star. The process of energy production in which hydrogen nuclei ...
Slide 1
... • The cooling sequences are “pinned” to the CMD by the main sequence and white dwarfs fitted together – sliding is not allowed. • If we ignore the observational errors, the CMD location of a star uniquely determines its mass and radius: setting the mechanical properties of the white dwarf determined ...
... • The cooling sequences are “pinned” to the CMD by the main sequence and white dwarfs fitted together – sliding is not allowed. • If we ignore the observational errors, the CMD location of a star uniquely determines its mass and radius: setting the mechanical properties of the white dwarf determined ...
Notes
... Star evolves at constant luminosity (~104LSun), shrinking and heating up, until nuclear burning ceases Masses between 0.55 and 1+ solar masses (more massive are brighter) Outflowing winds seen in “P Cygni” profiles Hydrogen abundance low, carbon abundance high (WC stars) If the stars reach T>25,000 ...
... Star evolves at constant luminosity (~104LSun), shrinking and heating up, until nuclear burning ceases Masses between 0.55 and 1+ solar masses (more massive are brighter) Outflowing winds seen in “P Cygni” profiles Hydrogen abundance low, carbon abundance high (WC stars) If the stars reach T>25,000 ...
EarthComm_c1s9
... to study other properties of stars. You read earlier that our solar system is part of the Milky Way Galaxy. Our stellar neighborhood is about two thirds of the way out on a spiral arm that stretches from the core of the galaxy. (Stellar means of or pertaining to stars.) The galaxy contains hundreds ...
... to study other properties of stars. You read earlier that our solar system is part of the Milky Way Galaxy. Our stellar neighborhood is about two thirds of the way out on a spiral arm that stretches from the core of the galaxy. (Stellar means of or pertaining to stars.) The galaxy contains hundreds ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.