AAS08 - Caltech Optical Observatories
... •The CAMERA adaptive optics system can be replicated and potentially deployed at the 200” with a focus on improving energy concentration for existing instrumentation such as DoubleSpec and TripleSpec. Calculated H-band Strehl ratios for CAMERA under the various observing conditions presented above f ...
... •The CAMERA adaptive optics system can be replicated and potentially deployed at the 200” with a focus on improving energy concentration for existing instrumentation such as DoubleSpec and TripleSpec. Calculated H-band Strehl ratios for CAMERA under the various observing conditions presented above f ...
Powerpoint
... Like a rubber sheet, but in three dimensions, curvature dictates how all objects, including light, move when close to a mass. ...
... Like a rubber sheet, but in three dimensions, curvature dictates how all objects, including light, move when close to a mass. ...
EM Waves and Color
... rainbow. • Sunlight is an example of white light. – White is not a color, but a combination of all colors. ...
... rainbow. • Sunlight is an example of white light. – White is not a color, but a combination of all colors. ...
Waves and Radiation
... An optical fibre is a long, thin, _______ rod made of glass or plastic. Light is _______ reflected from one end to the other, making it possible to send ____ chunks of information Optical fibres can be used for _________ or ENDOSCOPES (medical devices that are used to see inside the body) Words to u ...
... An optical fibre is a long, thin, _______ rod made of glass or plastic. Light is _______ reflected from one end to the other, making it possible to send ____ chunks of information Optical fibres can be used for _________ or ENDOSCOPES (medical devices that are used to see inside the body) Words to u ...
Stars
... When deuterium and tritium atoms, both hydrogen isotopes, fuse together inside a star, helium is produced. Heavier elements are produced when a star becomes a red giant. Only a supernova can produce elements heavier than iron, such as silver, gold and uranium. ...
... When deuterium and tritium atoms, both hydrogen isotopes, fuse together inside a star, helium is produced. Heavier elements are produced when a star becomes a red giant. Only a supernova can produce elements heavier than iron, such as silver, gold and uranium. ...
Neutron Stars and Black Holes
... totally different depending on distance. • Because they were so short (~10 second or less) it was difficult to know their location, until 1991… ...
... totally different depending on distance. • Because they were so short (~10 second or less) it was difficult to know their location, until 1991… ...
A radio pulsing white dwarf binary star
... White dwarfs are compact stars, similar in size to Earth but ∼ 200,000 times more massive1 . Isolated white dwarfs emit most of their power from ultraviolet to near-infrared wavelengths, but when in close orbits with less dense stars, white dwarfs can strip material from their companions, and the re ...
... White dwarfs are compact stars, similar in size to Earth but ∼ 200,000 times more massive1 . Isolated white dwarfs emit most of their power from ultraviolet to near-infrared wavelengths, but when in close orbits with less dense stars, white dwarfs can strip material from their companions, and the re ...
Astronomy_Syllabus
... build detailed mental models that will allow us to predict, for example, the motion of the Sun and stars across the sky for any latitude at any time of year. We will explore the phases, orbit, and eclipses associated with the Moon, discover the basic scales of the universe and facts about our solar ...
... build detailed mental models that will allow us to predict, for example, the motion of the Sun and stars across the sky for any latitude at any time of year. We will explore the phases, orbit, and eclipses associated with the Moon, discover the basic scales of the universe and facts about our solar ...
Слайд 1 - University of Wrocław
... 2. The neutron star matter is so dense that P is almost independen t of the temperatu re T and is determined by the mass density and the compositio n of the matter; one usually w rites P P ( ). 3. The mass density is defined as E / c 2 , where E [erg/cc] is the total energy density (includ ...
... 2. The neutron star matter is so dense that P is almost independen t of the temperatu re T and is determined by the mass density and the compositio n of the matter; one usually w rites P P ( ). 3. The mass density is defined as E / c 2 , where E [erg/cc] is the total energy density (includ ...
Theories
... stars, and planets still hold the explosive motion of the moment of creation and are moving away from each other at great speed. ...
... stars, and planets still hold the explosive motion of the moment of creation and are moving away from each other at great speed. ...
Observational Evidence for Dark Matter Simona Murgia, SLAC-KIPAC XXXIX SLAC Summer Institute
... The existence of dark matter was postulated by Zwicky in the 1930’s to explain the dynamics of galaxies in the Coma galaxy cluster. (Clusters of galaxies are the largest gravitationally bound system known in the Universe. They contain ~10s to 1000s of galaxies.) Zwicky first inferred the total mass ...
... The existence of dark matter was postulated by Zwicky in the 1930’s to explain the dynamics of galaxies in the Coma galaxy cluster. (Clusters of galaxies are the largest gravitationally bound system known in the Universe. They contain ~10s to 1000s of galaxies.) Zwicky first inferred the total mass ...
Chemical Composition of Planetary Nebulae: The Galaxy and the
... Correlations Involving N An anticorrelation between N/O and O/H has been discussed by a number of people (see for example [2], [18] and Perinotto et al., this conference) and may be an evidence for the conversion of O into N in the PN progenitor stars. This scenario is basically supported by our dat ...
... Correlations Involving N An anticorrelation between N/O and O/H has been discussed by a number of people (see for example [2], [18] and Perinotto et al., this conference) and may be an evidence for the conversion of O into N in the PN progenitor stars. This scenario is basically supported by our dat ...
More detailed notes - Particle Physics and Particle Astrophysics
... You may notice that the one-solar-mass track doesn’t have this reversal of direction at the end of the main sequence stage. That’s because in stars using the pp chain, the core is radiative rather than convective: the core material is not mixed, and the very centre of the core runs out of hydrogen w ...
... You may notice that the one-solar-mass track doesn’t have this reversal of direction at the end of the main sequence stage. That’s because in stars using the pp chain, the core is radiative rather than convective: the core material is not mixed, and the very centre of the core runs out of hydrogen w ...
Stellar Masses and the Main Sequence
... Equation of State To solve the equations of stellar structure, one must also known the relationship between pressure, density, and temperature and mean molecular weight. This is called the equation of state. The pressure comes from 3 sources, i.e., P = Prad + Pion + Pelectron. • Radiation pressure ...
... Equation of State To solve the equations of stellar structure, one must also known the relationship between pressure, density, and temperature and mean molecular weight. This is called the equation of state. The pressure comes from 3 sources, i.e., P = Prad + Pion + Pelectron. • Radiation pressure ...
AST 301 Introduction to Astronomy - University of Texas Astronomy
... Astronomers measure the temperatures and luminosities of many stars and plot them on a diagram called the Hertzsprung-Russell (or H-R) diagram. The horizontal axis is surface temperature and the vertical axis is luminosity. Each star is a dot on the diagram. For historical reasons they plot temperat ...
... Astronomers measure the temperatures and luminosities of many stars and plot them on a diagram called the Hertzsprung-Russell (or H-R) diagram. The horizontal axis is surface temperature and the vertical axis is luminosity. Each star is a dot on the diagram. For historical reasons they plot temperat ...
Vocab
... recognize that light has both particle and wave properties (15.2) relate energy of light to wavelength/frequency in the electromagnetic spectrum (15.2) put electromagnetic waves in order according to wavelength or frequency (15.2) explain what electromagnetic waves are commonly used for (15.2) diffe ...
... recognize that light has both particle and wave properties (15.2) relate energy of light to wavelength/frequency in the electromagnetic spectrum (15.2) put electromagnetic waves in order according to wavelength or frequency (15.2) explain what electromagnetic waves are commonly used for (15.2) diffe ...
Article PDF - IOPscience
... Although data on external galaxies are fewer and much less detailed, they have still allowed their study with the use of similar methods. However, the number of parameters involved in any chemical evolution model is large, and a unique solution to the problem does not exist. Even the evolutionary pi ...
... Although data on external galaxies are fewer and much less detailed, they have still allowed their study with the use of similar methods. However, the number of parameters involved in any chemical evolution model is large, and a unique solution to the problem does not exist. Even the evolutionary pi ...
Time From the Perspective of a Particle Physicist
... • Energy transferred by absorption and reradiation of light ...
... • Energy transferred by absorption and reradiation of light ...
Stellar Evolution (Formation)
... Sun has enough H in its core to produce energy for about 1010 yrs. (It is about halfway through its life now.) When the core’s H is exhausted, there will be no more nuclear energy to heat the gas. Gravity will win over gas pressure and the core will collapse. Gravitational potential energy of th ...
... Sun has enough H in its core to produce energy for about 1010 yrs. (It is about halfway through its life now.) When the core’s H is exhausted, there will be no more nuclear energy to heat the gas. Gravity will win over gas pressure and the core will collapse. Gravitational potential energy of th ...
Layers of the Sun Test 1 study guide. Intoduction to Stars
... RADIATION: energy transfer by radiation CONVECTION: energy transfer by convection ...
... RADIATION: energy transfer by radiation CONVECTION: energy transfer by convection ...
Stellar Metamorphosis
... material that the star started its life with is largely released back into space in the form of escaped gases of Hydrogen and Helium mainly and what remains is just the cinder of its solid materials synthesised by fusion reactions (fusion process on sun explained in my paper viXra:1510.0472 ) formin ...
... material that the star started its life with is largely released back into space in the form of escaped gases of Hydrogen and Helium mainly and what remains is just the cinder of its solid materials synthesised by fusion reactions (fusion process on sun explained in my paper viXra:1510.0472 ) formin ...
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.