Lect12-3-10-10
... The Orion nebula is lit up by the brilliant light of massive young stars. Their radiation is energetic enough to ionize the surrounding gas and heat it up, so that the gas that did not collapse into these young stars is pushed away. Behind the visible nebula is a dense cloud of molecular hydrogen ga ...
... The Orion nebula is lit up by the brilliant light of massive young stars. Their radiation is energetic enough to ionize the surrounding gas and heat it up, so that the gas that did not collapse into these young stars is pushed away. Behind the visible nebula is a dense cloud of molecular hydrogen ga ...
P1.4 to 1.5: Generating Electricity and Waves
... distant galaxies. The further away the galaxies are, the faster they are moving, and the c) bigger the observed increase in wavelength. This effect is called redshift. d) Cosmic microwave background radiation (CMBR) is a form of electromagnetic radiation filling the universe. It comes from radiation ...
... distant galaxies. The further away the galaxies are, the faster they are moving, and the c) bigger the observed increase in wavelength. This effect is called redshift. d) Cosmic microwave background radiation (CMBR) is a form of electromagnetic radiation filling the universe. It comes from radiation ...
Lecture 1: Welcome to Astronomy 106
... How much energy is liberated? • An application of Einstein’s equation ...
... How much energy is liberated? • An application of Einstein’s equation ...
Modeling the Optical/NIR Observing the FIR
... Edge-on spirals are ideal objects to perform dust energy balance studies as the dust properties can be constrained from both optical an FIR observations. Starting from the FitSKIRT models, we will perform panchromatic RT simulations on the HEROES galaxies. SKIRT is able to predict the FIR/Sub-mm emi ...
... Edge-on spirals are ideal objects to perform dust energy balance studies as the dust properties can be constrained from both optical an FIR observations. Starting from the FitSKIRT models, we will perform panchromatic RT simulations on the HEROES galaxies. SKIRT is able to predict the FIR/Sub-mm emi ...
Today`s Powerpoint
... A: The two clocks will show the same amount of time has passed. B: The mountain clock will be slightly ahead (fast) C: The mountain clock will be slightly behind ...
... A: The two clocks will show the same amount of time has passed. B: The mountain clock will be slightly ahead (fast) C: The mountain clock will be slightly behind ...
Theories of Cosmic Evolution - DigitalCommons@University of
... nucleus, from which emerge, at exactly opposite sides, two fainter arms or coils, which wind around the nucleus in a common direction, either clockwise, or counter-clockwise, sometimes closely coiled, sometimes more loosely divergent; encircling the nucleus once or twice. The two arms are usually al ...
... nucleus, from which emerge, at exactly opposite sides, two fainter arms or coils, which wind around the nucleus in a common direction, either clockwise, or counter-clockwise, sometimes closely coiled, sometimes more loosely divergent; encircling the nucleus once or twice. The two arms are usually al ...
The Hubble Law
... important, some of these stars were Cepheid variables which reveal their distance from earth (see Appendix B). Hubble initially derived an inaccurate distance of 930,000 light years for Andromeda, today known to be about 2.2 million light years away. Heber Curtis had been correct in the 1920 debate; ...
... important, some of these stars were Cepheid variables which reveal their distance from earth (see Appendix B). Hubble initially derived an inaccurate distance of 930,000 light years for Andromeda, today known to be about 2.2 million light years away. Heber Curtis had been correct in the 1920 debate; ...
Chapter 14. Stellar Structure and Evolution
... Inevitably a star will exhaust the H in its core, having converted it to He. The Sun is about half way through that process. In the core of the Sun, we believe the present composition is about 50% He. As the He is created, the core of the star must move to slightly higher temperatures and pressures ...
... Inevitably a star will exhaust the H in its core, having converted it to He. The Sun is about half way through that process. In the core of the Sun, we believe the present composition is about 50% He. As the He is created, the core of the star must move to slightly higher temperatures and pressures ...
An Introduction to Astronomy and Cosmology
... Eve or the 30th June. Since the time definition was changed, 22 leap seconds have had to be added, about one every 18 months, but there were none between 1998 and 2005 showing the slowdown is not particularly regular. Leap seconds are somewhat of a nuisance for systems such as the Global Positioning ...
... Eve or the 30th June. Since the time definition was changed, 22 leap seconds have had to be added, about one every 18 months, but there were none between 1998 and 2005 showing the slowdown is not particularly regular. Leap seconds are somewhat of a nuisance for systems such as the Global Positioning ...
FTIR Spectrometer - Pat Arnott Web Site
... What is the effect on the infrared spectrum at the surface? ...
... What is the effect on the infrared spectrum at the surface? ...
EXAM # 1
... A number of electrode types relate a potential difference to a concentration difference across a membrane due to a specific interaction of an analyte with the electrode. Crystalline Membrane Electrode, Liquid Membrane Electrode or Enzyme electrodes are common examples ...
... A number of electrode types relate a potential difference to a concentration difference across a membrane due to a specific interaction of an analyte with the electrode. Crystalline Membrane Electrode, Liquid Membrane Electrode or Enzyme electrodes are common examples ...
Fifth - Department of Physics and Astronomy
... the density increases and eventually the electrons speeds approach the speed of light, i.e., they become relativistic. • By equating the core pressure for a star in hydrostatic equilibrium, to the pressure for relativistic electrons we see that there is no radius for which the star will be in equili ...
... the density increases and eventually the electrons speeds approach the speed of light, i.e., they become relativistic. • By equating the core pressure for a star in hydrostatic equilibrium, to the pressure for relativistic electrons we see that there is no radius for which the star will be in equili ...
Star Life Cycles Stellar Nebula
... Star spends more than 90% of its life Our sun is in this stage ...
... Star spends more than 90% of its life Our sun is in this stage ...
Astronomy 12: Introduction to Astronomy
... I. MULTIPLE CHOICE: Please fill in the letter corresponding to the most appropriate answer 1.How does the H-R diagram help astronomers identify stars? a. It plots a star’s mass and core temperature, which allows astronomers determine the colour and region of where star is formed. b. It plots a star’ ...
... I. MULTIPLE CHOICE: Please fill in the letter corresponding to the most appropriate answer 1.How does the H-R diagram help astronomers identify stars? a. It plots a star’s mass and core temperature, which allows astronomers determine the colour and region of where star is formed. b. It plots a star’ ...
h-r_diagram_online_lab
... Step 4: Now add a series. Name it “Nearby Stars” and again make sure the cells within the “Type” column for “Table 2: Nearby Stars” are set as your X values, and cells within the “log (L/Lsun)” column for “Table 2: Nearby Stars” are set as your Y values. (Define the x values by clicking on the litt ...
... Step 4: Now add a series. Name it “Nearby Stars” and again make sure the cells within the “Type” column for “Table 2: Nearby Stars” are set as your X values, and cells within the “log (L/Lsun)” column for “Table 2: Nearby Stars” are set as your Y values. (Define the x values by clicking on the litt ...
and galaxies
... •People approx 1m, cosmic observers •Stars approx 104m->1012m cosmic furnaces •Galaxies approx 1019m->1021m (this course) Units of Distance (RJS p320, CO p64) ...
... •People approx 1m, cosmic observers •Stars approx 104m->1012m cosmic furnaces •Galaxies approx 1019m->1021m (this course) Units of Distance (RJS p320, CO p64) ...
On the importance of nucleation for the formation of quark cores
... • We assume that deep inside the star nuclear matter may be described by the EoS given in [2] (parameter set TM1). ...
... • We assume that deep inside the star nuclear matter may be described by the EoS given in [2] (parameter set TM1). ...
PDF version (two pages, including the full text)
... it is losing mass fast enough to create a visible nebula or gas cloud around it, lit by Antares hot companion star. In the next few million years or so, Antares may explode as a supernova -so keep your eyes on the Scorpion if you're the patient sort. Just NE of Scorpio in the Milky Way are the stars ...
... it is losing mass fast enough to create a visible nebula or gas cloud around it, lit by Antares hot companion star. In the next few million years or so, Antares may explode as a supernova -so keep your eyes on the Scorpion if you're the patient sort. Just NE of Scorpio in the Milky Way are the stars ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.