Lecture 5/10 The interstellar medium and star formation Ulf
... where Nd is the column density. The composition of the dust particles is not known in detail, but it is likely that they contain graphite and silicates. The dominating component in the interstellar medium is hydrogen, which may occur as atomic, molecular or ionised hydrogen. Atomic hydrogen in the i ...
... where Nd is the column density. The composition of the dust particles is not known in detail, but it is likely that they contain graphite and silicates. The dominating component in the interstellar medium is hydrogen, which may occur as atomic, molecular or ionised hydrogen. Atomic hydrogen in the i ...
Double Stars Discovered by IOTA Predicted Occultations July, 2010
... Both components of the double star were occulted as observed in Arizona, USA. As observed in Japan, one component of the double star was occulted by three observers and 9 observers recorded miss observations. The light curve appears to be a BBAA event. A double asteroid was initially considered, but ...
... Both components of the double star were occulted as observed in Arizona, USA. As observed in Japan, one component of the double star was occulted by three observers and 9 observers recorded miss observations. The light curve appears to be a BBAA event. A double asteroid was initially considered, but ...
The Milky Way Galaxy
... the Galaxy, where extinction effects are much less than that found along the Milky Way ...
... the Galaxy, where extinction effects are much less than that found along the Milky Way ...
Star - Astrophysics
... to 1.4M. Given the density of nuclear material, radii should be in the range 10–17 km. The luminosity is therefore very small making neutron stars hard to detect. However, in 1967 Jocelyn Bell and Tony Hewish discovered rapidly pulsating radio sources, or pulsars. These are found with periods of a ...
... to 1.4M. Given the density of nuclear material, radii should be in the range 10–17 km. The luminosity is therefore very small making neutron stars hard to detect. However, in 1967 Jocelyn Bell and Tony Hewish discovered rapidly pulsating radio sources, or pulsars. These are found with periods of a ...
Study Guide: Use your notes and handouts to answer the following
... Saturn is composed of mostly gas, and has a core composed of rock and metallic hydrogen. Rings are probably composed of small particles of ice and rock Uranus. It is covered by a thick layer of gas, and has a fairly uniform blue-green color. Uranus is surrounded by a system of nine rings. Tilted alm ...
... Saturn is composed of mostly gas, and has a core composed of rock and metallic hydrogen. Rings are probably composed of small particles of ice and rock Uranus. It is covered by a thick layer of gas, and has a fairly uniform blue-green color. Uranus is surrounded by a system of nine rings. Tilted alm ...
talk / PPT / 1.6 MB
... Now, for the stellar component, we have a mass surface density of 36 M/pc2 ... and ... a local mass density of 0.042 M/pc3 ... ...
... Now, for the stellar component, we have a mass surface density of 36 M/pc2 ... and ... a local mass density of 0.042 M/pc3 ... ...
What is a Hertzsprung
... from the core and power radiated from the surface • Such a star alternately expands and contracts, varying in brightness as it tries to find a balance ...
... from the core and power radiated from the surface • Such a star alternately expands and contracts, varying in brightness as it tries to find a balance ...
Planets and Transits
... Sydney times: First contact 08:16 Second contact 08:34 Mid-transit 11:30 Third contact 14:26 Fourth contact 14:44 ...
... Sydney times: First contact 08:16 Second contact 08:34 Mid-transit 11:30 Third contact 14:26 Fourth contact 14:44 ...
Astronomy 115: Finding New Worlds
... ways of thought that go into scientific reasoning and making science claims. The course will help you think about contributions science makes to society, as well as how society has an influence on science. While the information in the class should be interesting and should arouse your curiosity, the ...
... ways of thought that go into scientific reasoning and making science claims. The course will help you think about contributions science makes to society, as well as how society has an influence on science. While the information in the class should be interesting and should arouse your curiosity, the ...
Conceptobasico.pdf
... It is the projection of the observer's Earth longitude on to the sky. A transit occurs when an object passes across the meridian. At this time, the object is at its maximum altitude in the sky. The altazimuth coordinates of an object are local coordinates. Stars very far south near the South Celesti ...
... It is the projection of the observer's Earth longitude on to the sky. A transit occurs when an object passes across the meridian. At this time, the object is at its maximum altitude in the sky. The altazimuth coordinates of an object are local coordinates. Stars very far south near the South Celesti ...
The “Astronomical Horizons” Public Lecture Junk to fill page Series
... Graduate Studies announced funding starting this fiscal year for the Center for the Study of Cosmic Evolution (CSCE), a new research unit within the Physics & Astronomy Department. The CSCE will focus on understanding the evolution of the universe over its 14 billion year history, which is a fundame ...
... Graduate Studies announced funding starting this fiscal year for the Center for the Study of Cosmic Evolution (CSCE), a new research unit within the Physics & Astronomy Department. The CSCE will focus on understanding the evolution of the universe over its 14 billion year history, which is a fundame ...
MS Word
... An H-R diagram is a plot of stellar spectral type versus absolute magnitude (and sometimes luminosity). Familiarize yourself with Figure 1 which is an empty H-R diagram. Along the bottom of the diagram are the common spectral types (we have left off O type stars since there are no O stars anywhere n ...
... An H-R diagram is a plot of stellar spectral type versus absolute magnitude (and sometimes luminosity). Familiarize yourself with Figure 1 which is an empty H-R diagram. Along the bottom of the diagram are the common spectral types (we have left off O type stars since there are no O stars anywhere n ...
"Stars" pdf file
... the sun is an average star. Star diameters range from a few hundredths to hundreds of times the solar one. Yet even star dimensions, no matter how large, are small compared to the distances between them. Proxima Centauri, the closest star to our Solar System, is 250 thousand times farther from Earth ...
... the sun is an average star. Star diameters range from a few hundredths to hundreds of times the solar one. Yet even star dimensions, no matter how large, are small compared to the distances between them. Proxima Centauri, the closest star to our Solar System, is 250 thousand times farther from Earth ...
Study Guide Beginning Astronomy
... The most important parameter for a telescope is the light gathering power, which is proportional to the area of the main objective. Since it is possible to make a mirror much larger than a lens for the same amount of money, you can get a more powerful telescope for your budget by investing in a ref ...
... The most important parameter for a telescope is the light gathering power, which is proportional to the area of the main objective. Since it is possible to make a mirror much larger than a lens for the same amount of money, you can get a more powerful telescope for your budget by investing in a ref ...
Ch.11 Massive star death
... Supernovae are 10,000 times more luminous than novae! Massive star supernova: (Type II) Massive star builds up 1.4 Msun core and collapses into a neutron star, gravitational PE released in explosion White dwarf supernova: (Type I) ...
... Supernovae are 10,000 times more luminous than novae! Massive star supernova: (Type II) Massive star builds up 1.4 Msun core and collapses into a neutron star, gravitational PE released in explosion White dwarf supernova: (Type I) ...
Solutions
... the freed electron recombines with the hydrogen nucleus it emits a characteristic red light as it cascades through the energy levels to the ground state. High energy is required to ionize the hydrogen and this energy is supplied by the newly formed OB Association stars that emit most of their energ ...
... the freed electron recombines with the hydrogen nucleus it emits a characteristic red light as it cascades through the energy levels to the ground state. High energy is required to ionize the hydrogen and this energy is supplied by the newly formed OB Association stars that emit most of their energ ...
Earth in Space and Time (SC.5.E.5.1)
... actually larger than the Sun. If this is true, why do these stars appear like points of light in the sky? A. These stars are hotter than the Sun. B. These stars have less mass than the Sun. C. These stars are farther away from Earth than the Sun is. D. These stars are made of different chemicals tha ...
... actually larger than the Sun. If this is true, why do these stars appear like points of light in the sky? A. These stars are hotter than the Sun. B. These stars have less mass than the Sun. C. These stars are farther away from Earth than the Sun is. D. These stars are made of different chemicals tha ...
A New Variable Star in Perseus
... The secondary minima are shown in Figure 6 and Figure 7. Using this two minima, the duration of the flat part of the secondary minimum is determined as 583 minutes. ...
... The secondary minima are shown in Figure 6 and Figure 7. Using this two minima, the duration of the flat part of the secondary minimum is determined as 583 minutes. ...
The Planetarium Fleischmann Planetarium
... have a high and variable ratio of bromine to chlorine; indicating “the past presence of large amounts of water,” write Dr. Rudi Rieder and Dr. Ralf Gellert of Max-Planck-Institute for Chemistry and co-authors. Their paper and another by Dr. Phil Christensen of Arizona State University and collaborat ...
... have a high and variable ratio of bromine to chlorine; indicating “the past presence of large amounts of water,” write Dr. Rudi Rieder and Dr. Ralf Gellert of Max-Planck-Institute for Chemistry and co-authors. Their paper and another by Dr. Phil Christensen of Arizona State University and collaborat ...
