Starbirth - Lincoln-Sudbury Regional High School
... wave at the edge of the remaining cloud, and the process begins again. ...
... wave at the edge of the remaining cloud, and the process begins again. ...
The Death of Stars
... and could be seen for 2 years at night. • The remnant merges with other gas and forms new stars. • Supernovae occur 1 to 3 times per 100 years per galaxy. • The last observed supernova in the Milky Way was in 1604 (Kepler’s supernova). Are we overdue? Gas and dust may hide supernovae on the other si ...
... and could be seen for 2 years at night. • The remnant merges with other gas and forms new stars. • Supernovae occur 1 to 3 times per 100 years per galaxy. • The last observed supernova in the Milky Way was in 1604 (Kepler’s supernova). Are we overdue? Gas and dust may hide supernovae on the other si ...
Student notes for first part of topic
... -The singularity had no space but contained all the energy the universe would ever contain - The energy was in the form of gamma rays -The singularity expanded and continued to expand -The first stars did not form until about ½ billion years after the “big bang” or initial onset of the expansion of ...
... -The singularity had no space but contained all the energy the universe would ever contain - The energy was in the form of gamma rays -The singularity expanded and continued to expand -The first stars did not form until about ½ billion years after the “big bang” or initial onset of the expansion of ...
Figure 1. Map showing the region of the Fourth Quadrant selected
... On The Fly Mapping A new operations mode for Mopra has been developed in 2004, ‘on-the-fly’ (OTF) mapping, which is essential for the conducting of mapping surveys. It allows a map to be obtained by slewing the telescope while continuously collecting data. For a telescope like Mopra, which does not ...
... On The Fly Mapping A new operations mode for Mopra has been developed in 2004, ‘on-the-fly’ (OTF) mapping, which is essential for the conducting of mapping surveys. It allows a map to be obtained by slewing the telescope while continuously collecting data. For a telescope like Mopra, which does not ...
Powerpoint of lecture 14
... density (~100 g cm-3) over mass range 0.3 to 1.3 M • Ratio of central to mean density at Sun ~100 • Radiation pressure increases gradually towards higher mass, and degeneracy towards lower mass ...
... density (~100 g cm-3) over mass range 0.3 to 1.3 M • Ratio of central to mean density at Sun ~100 • Radiation pressure increases gradually towards higher mass, and degeneracy towards lower mass ...
stellar_explosions - UT Austin (Astronomy)
... 2. Technetium—this element is predicted to be produced in the s-process, but it is radioactive, and decays in 200,000 years. Yet it is observed in the atmospheres of some red giant stars must have been produced in the interior and mixed to the surface, where the red giant wind will spew it back in ...
... 2. Technetium—this element is predicted to be produced in the s-process, but it is radioactive, and decays in 200,000 years. Yet it is observed in the atmospheres of some red giant stars must have been produced in the interior and mixed to the surface, where the red giant wind will spew it back in ...
Full Press Release - The Open University
... stars in the dense gas itself, and emits infrared light. The formation of a new generation of stars is now taking place within this compressed gas in these outer shell structures. The AKARI data reveals for the first time, the detailed distribution of this swept out gas and dust over the entire nebu ...
... stars in the dense gas itself, and emits infrared light. The formation of a new generation of stars is now taking place within this compressed gas in these outer shell structures. The AKARI data reveals for the first time, the detailed distribution of this swept out gas and dust over the entire nebu ...
High Mass Stellar Evolution
... activate the controls. Along the bottom of the frame is a scale with a blue circle showing how far you are from the center of the black hole. The three line segments extending from the circle show the current field of view. Your left and right keyboard arrows should change the distance, and your up ...
... activate the controls. Along the bottom of the frame is a scale with a blue circle showing how far you are from the center of the black hole. The three line segments extending from the circle show the current field of view. Your left and right keyboard arrows should change the distance, and your up ...
The Universe - Solon City Schools
... The spectral lines can indicate the composition of a star. ...
... The spectral lines can indicate the composition of a star. ...
Study Guide – Midterm 3
... Gravity = “curvature” in space. • Photons, planets etc follow shortest paths through curved space. • Analogy: 2D bug on surface that curves into an extra (3rd) ...
... Gravity = “curvature” in space. • Photons, planets etc follow shortest paths through curved space. • Analogy: 2D bug on surface that curves into an extra (3rd) ...
Lecture 17, PPT version
... Gamma-ray bursts are all found in galaxies other than the Milky Way and sometimes they have “optical afterglows”. ...
... Gamma-ray bursts are all found in galaxies other than the Milky Way and sometimes they have “optical afterglows”. ...
Chapter 21 Study Guide
... 1. The light you see with your eyes is called _________________________ _______________________. 2. ___________________________________ __________________________ is energy that can travel directly through space in the form of waves. 3. The distance between the crest of one wave and the crest of the ...
... 1. The light you see with your eyes is called _________________________ _______________________. 2. ___________________________________ __________________________ is energy that can travel directly through space in the form of waves. 3. The distance between the crest of one wave and the crest of the ...
Astronomy Review
... _____ 46. forms a read giant, which then collapses into a red dwarf and forms a planetary nebula ...
... _____ 46. forms a read giant, which then collapses into a red dwarf and forms a planetary nebula ...
31_Finding Earths
... core is dangerous for life. Lots of chances for a nearby supernova. Oort cloud of comets constantly being disturbed by passing stars. Radiation from nearby neutron stars and black holes. The downtown area may have too much “crime” and violence. Not a good place to raise kids. ...
... core is dangerous for life. Lots of chances for a nearby supernova. Oort cloud of comets constantly being disturbed by passing stars. Radiation from nearby neutron stars and black holes. The downtown area may have too much “crime” and violence. Not a good place to raise kids. ...
FSA school wide Science Olympiad 12/8/2007
... with funny-looking names consisting of the capital letter "M" followed by a number. For example, the Pleiades star-cluster in Taurus is labeled "M45", and "M13" is the labelling for the Hercules Globular Cluster. And so it goes on right from "M1" to "M110". But tell me, what exactly does the letter ...
... with funny-looking names consisting of the capital letter "M" followed by a number. For example, the Pleiades star-cluster in Taurus is labeled "M45", and "M13" is the labelling for the Hercules Globular Cluster. And so it goes on right from "M1" to "M110". But tell me, what exactly does the letter ...
Background Information - Eu-Hou
... older stars which have evolved off the main sequence onto the Red Giant Branch (labelled RGB on diagram above). If the main sequence is well defined then this implies that the stars in the cluster are roughly the same age since the more massive stars with longer main sequence lifetimes have not move ...
... older stars which have evolved off the main sequence onto the Red Giant Branch (labelled RGB on diagram above). If the main sequence is well defined then this implies that the stars in the cluster are roughly the same age since the more massive stars with longer main sequence lifetimes have not move ...
Sample Final
... 67. Self-sustaining star formation means that a) supernova explosions cause new stars to form, then they evolve and supernova causing further star formation, and so on. b) stars can form all by themselves without help from spiral density waves or supernovae. c) stars always produce planetary systems ...
... 67. Self-sustaining star formation means that a) supernova explosions cause new stars to form, then they evolve and supernova causing further star formation, and so on. b) stars can form all by themselves without help from spiral density waves or supernovae. c) stars always produce planetary systems ...
The Interstellar Medium (ch. 18) Interstellar Dust Grains
... mostly H, some He, and ~1% heavier elements, consistent with stars forming from this gas), except that some elements are depleted , i.e. their abundances are low compared to stars. This is almost certainly because these elements have converted into the solid dust grains. Most astronomers think the g ...
... mostly H, some He, and ~1% heavier elements, consistent with stars forming from this gas), except that some elements are depleted , i.e. their abundances are low compared to stars. This is almost certainly because these elements have converted into the solid dust grains. Most astronomers think the g ...
Document
... j. How is it possible that Canopus is more luminous than Achernar, given their respective spectral types? Canopus is cooler than Achernar; therefore, the only way Canopus can be more luminous is because it is LARGER. 2. List the evolutionary stages of the Sun’s life cycle & describe how its size (Ra ...
... j. How is it possible that Canopus is more luminous than Achernar, given their respective spectral types? Canopus is cooler than Achernar; therefore, the only way Canopus can be more luminous is because it is LARGER. 2. List the evolutionary stages of the Sun’s life cycle & describe how its size (Ra ...
Slide 1
... The upcoming enhanced UK radio facility e-MERLIN will provide greatly increased sensitivity ( about 3 micro-Jy ) and high spatial resolution (milli-arcsec) observations at 5 GHz (C-band) and 1.6 GHz (L-band) with bandwidths of 2GHz and 0.4 GHz respectively. We are planning a major survey of the trem ...
... The upcoming enhanced UK radio facility e-MERLIN will provide greatly increased sensitivity ( about 3 micro-Jy ) and high spatial resolution (milli-arcsec) observations at 5 GHz (C-band) and 1.6 GHz (L-band) with bandwidths of 2GHz and 0.4 GHz respectively. We are planning a major survey of the trem ...
Star formation
Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as ""stellar nurseries"" or ""star-forming regions"", collapse to form stars. As a branch of astronomy, star formation includes the study of the interstellar medium (ISM) and giant molecular clouds (GMC) as precursors to the star formation process, and the study of protostars and young stellar objects as its immediate products. It is closely related to planet formation, another branch of astronomy. Star formation theory, as well as accounting for the formation of a single star, must also account for the statistics of binary stars and the initial mass function.In June 2015, astronomers reported evidence for Population III stars in the Cosmos Redshift 7 galaxy at z = 6.60. Such stars are likely to have existed in the very early universe (i.e., at high redshift), and may have started the production of chemical elements heavier than hydrogen that are needed for the later formation of planets and life as we know it.