How Is a Star`s Color Related to Its Temperature?
... On a clear night you have surely noticed that some stars are brighter than others. But stars also have different colors. Rigel is blue, and Betelgeuse is red. Capella and our sun are yellow. In this activity you will make your own HertzsprungRussell diagram. You will see how star brightness, color, ...
... On a clear night you have surely noticed that some stars are brighter than others. But stars also have different colors. Rigel is blue, and Betelgeuse is red. Capella and our sun are yellow. In this activity you will make your own HertzsprungRussell diagram. You will see how star brightness, color, ...
The Chemical Composition of Stars in Open Clusters
... same atmospheric composition as the material out of which they were formed. Also the composition of most nearby B main-sequence stars agrees weil with the composition of interstellar matter as found from observations of H 11 regions. On the other hand the atmospheres of red giants are at least in so ...
... same atmospheric composition as the material out of which they were formed. Also the composition of most nearby B main-sequence stars agrees weil with the composition of interstellar matter as found from observations of H 11 regions. On the other hand the atmospheres of red giants are at least in so ...
1 Introduction for non-astronomers 1.1 Our expanding universe
... not emit light, at any wavelength. This makes it very difficult to detect directly, and it is only by the indirect gravitational influence of dark matter that we know it is there at all. During this slow overall expansion, small, isolated pockets of mass began to collapse. The first stars and galaxi ...
... not emit light, at any wavelength. This makes it very difficult to detect directly, and it is only by the indirect gravitational influence of dark matter that we know it is there at all. During this slow overall expansion, small, isolated pockets of mass began to collapse. The first stars and galaxi ...
ppt
... – Modeling of QSO continuum and line kinematics. – We demonstrate the importance of sampling the full probability distribution of parameters in the stellar population synthesis modeling of galaxy spectra (i.e. MCMC in general give different results from chisq minimization). – Degeneracies between in ...
... – Modeling of QSO continuum and line kinematics. – We demonstrate the importance of sampling the full probability distribution of parameters in the stellar population synthesis modeling of galaxy spectra (i.e. MCMC in general give different results from chisq minimization). – Degeneracies between in ...
Test 4 Review
... New idea: observations indicate that "sub-galactic" fragments of size several hundred parsecs were the first things to form. Hundreds might merge to form a galaxy. ...
... New idea: observations indicate that "sub-galactic" fragments of size several hundred parsecs were the first things to form. Hundreds might merge to form a galaxy. ...
Norman Lockyer Observatory
... 12.00 pm The Planets. A description of the planets and a glimpse into our current understanding of planetary science 12.45pm Lunch. There are no catering facilities at the NLO but there is a public picnic area in the grounds and the room inside for those who wish to bring their own packed lunch. Tea ...
... 12.00 pm The Planets. A description of the planets and a glimpse into our current understanding of planetary science 12.45pm Lunch. There are no catering facilities at the NLO but there is a public picnic area in the grounds and the room inside for those who wish to bring their own packed lunch. Tea ...
Let there be Electromagnetic Radiation
... • One more interesting sidelight occurs because the atmosphere acts like a prism. Red light is less bent than green light which is less bent than blue light. The image of the Sun in these different colors is therefore separated. When the Sun is low on the horizon, the red Sun sets first, then the gr ...
... • One more interesting sidelight occurs because the atmosphere acts like a prism. Red light is less bent than green light which is less bent than blue light. The image of the Sun in these different colors is therefore separated. When the Sun is low on the horizon, the red Sun sets first, then the gr ...
File
... B. Rebounding shock wave blows outer layers of star into space C. As bright as an entire galaxy! D. Signature: 1. Abundance of H2 2. Plateau in light curve ...
... B. Rebounding shock wave blows outer layers of star into space C. As bright as an entire galaxy! D. Signature: 1. Abundance of H2 2. Plateau in light curve ...
a light year is
... a) the characteristic size of light , b) the distance the Earth travels around the sun in one year c) the distance light travels in one year, d) the time it takes light to travel around the Earth's orbit 2. Constellations are a) apparent patterns or designs of stars in the sky , b) physical, related ...
... a) the characteristic size of light , b) the distance the Earth travels around the sun in one year c) the distance light travels in one year, d) the time it takes light to travel around the Earth's orbit 2. Constellations are a) apparent patterns or designs of stars in the sky , b) physical, related ...
Measurement of the Wavelength by Diffraction Gratings
... Moreover the fringes are formed far apart from one another. For this purpose Fraunhofer made the first grating. An ideal diffraction grating consists of a large number of fine equidistant parallel grooves ruled on a plate of glass. The region between two grooves is transparent and allows the light t ...
... Moreover the fringes are formed far apart from one another. For this purpose Fraunhofer made the first grating. An ideal diffraction grating consists of a large number of fine equidistant parallel grooves ruled on a plate of glass. The region between two grooves is transparent and allows the light t ...
Why SETI will Fail
... future of SETI research” • “Scientists who participate in this research are more optimistic than ever before that they could find signals from space that would indicate that we’re not alone. They are bolstered in this view by several recent developments. In the past 5 years astronomers have found th ...
... future of SETI research” • “Scientists who participate in this research are more optimistic than ever before that they could find signals from space that would indicate that we’re not alone. They are bolstered in this view by several recent developments. In the past 5 years astronomers have found th ...
astronomy 101 from
... distant objects and events existed when the universe itself was only a few hundred thousand years old. Astronomers see them as they were more than 13 billion years ago. When you look out in space, you’re looking back into time. The farther across space you look, the further back in time you see. Thi ...
... distant objects and events existed when the universe itself was only a few hundred thousand years old. Astronomers see them as they were more than 13 billion years ago. When you look out in space, you’re looking back into time. The farther across space you look, the further back in time you see. Thi ...
Slide 1
... The Milky Way – our galaxy spiral galaxy -a ____________________ 2/3 out along an arm ...
... The Milky Way – our galaxy spiral galaxy -a ____________________ 2/3 out along an arm ...
Leo_Presentation_Combined_2
... of sun, dip in luminosity is recorded Technique can be used to determine diameter and mass, thus giving a density Orbit must lie in correct plane Period must be sufficiently short, or telescope must observe star continuously for a longer time ...
... of sun, dip in luminosity is recorded Technique can be used to determine diameter and mass, thus giving a density Orbit must lie in correct plane Period must be sufficiently short, or telescope must observe star continuously for a longer time ...
6. Molecules other than CO, high density tracers
... Atomic Carbon CI fine structure line 3P1-3P0 at 492 GHz important tracer of non-ionising radiation In Arp 220 CI is strong, as predicted from its FIR flux, while CII emission is depleted This could be due to higher density, optical thickness of the C+ line ...
... Atomic Carbon CI fine structure line 3P1-3P0 at 492 GHz important tracer of non-ionising radiation In Arp 220 CI is strong, as predicted from its FIR flux, while CII emission is depleted This could be due to higher density, optical thickness of the C+ line ...
The Solar System. The Inner Planets.
... • Galaxies are flying away from each other • No expansion within galaxies • Only hydrogen and helium in the early Universe • All other chemical elements were created inside stars • We are all created from the stars’ stuff • Current composition of the Sun: 70%H, 28%He, 2%others ...
... • Galaxies are flying away from each other • No expansion within galaxies • Only hydrogen and helium in the early Universe • All other chemical elements were created inside stars • We are all created from the stars’ stuff • Current composition of the Sun: 70%H, 28%He, 2%others ...
Stellar Notes
... details can you come up with for a Stellar Nursery, or better known as a Nebula? ...
... details can you come up with for a Stellar Nursery, or better known as a Nebula? ...
A Second Luminous Blue Variable in the Quintuplet Cluster
... resolution only. Therefore, although we suspect that the value of He/H is not far from normal, we cannot rule out a much higher value. Finally, we consider the abundances of Mg, Si, and Fe. The striking similarity of the Mg ii lines in FMM#362 to those in the Pistol Star support a higher than solar ...
... resolution only. Therefore, although we suspect that the value of He/H is not far from normal, we cannot rule out a much higher value. Finally, we consider the abundances of Mg, Si, and Fe. The striking similarity of the Mg ii lines in FMM#362 to those in the Pistol Star support a higher than solar ...
What is a supernova - University of Warwick
... ircamera.as.arizona.edu/NatSci102/images/lec22_07.gif ...
... ircamera.as.arizona.edu/NatSci102/images/lec22_07.gif ...
N.2 Formation of Mass
... 1. Gravity: Mass is attracted to Mass 2. Strong Force: the force between the protons and neutrons of the nucleus of atoms. It holds the nucleus together. 3. Weak Force: An attraction between hydrogen atoms. Causes nuclear fusion between hydrogen atoms, it is the reason the sun burns. 4. Electromagne ...
... 1. Gravity: Mass is attracted to Mass 2. Strong Force: the force between the protons and neutrons of the nucleus of atoms. It holds the nucleus together. 3. Weak Force: An attraction between hydrogen atoms. Causes nuclear fusion between hydrogen atoms, it is the reason the sun burns. 4. Electromagne ...
Life Cycle of a Star Notes
... Stars glow because of a nuclear fusion reaction whereby hydrogen fuses together to form heavier elements such as helium and release energy. If enough matter is left behind, this may be so dense, and its gravitational field so strong that nothing can escape from it, not even light or other forms of e ...
... Stars glow because of a nuclear fusion reaction whereby hydrogen fuses together to form heavier elements such as helium and release energy. If enough matter is left behind, this may be so dense, and its gravitational field so strong that nothing can escape from it, not even light or other forms of e ...
SSS in young stellar populations: progenitors of the
... • SSS in these systems could be TNR on white dwarf once it accretes critical mass from Be disk • WDs could experience accretion and outburst cycles like in novae, and possible gain in mass with time • WDs initially massive, so require less mass to reach MCh • Mass accretion can be more efficient if ...
... • SSS in these systems could be TNR on white dwarf once it accretes critical mass from Be disk • WDs could experience accretion and outburst cycles like in novae, and possible gain in mass with time • WDs initially massive, so require less mass to reach MCh • Mass accretion can be more efficient if ...
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.