Young Stars in AGN
... More recent work with HST All the UV to near-IR continuum light in at least some Sey 2, all the ones observed with HST so far, is due to a nuclear starburst (SB), which is resolved in UV. In the very luminous Sey2 Mk477, seen as a Sey1 in polarized light, the nuclear SB is at least as luminous as t ...
... More recent work with HST All the UV to near-IR continuum light in at least some Sey 2, all the ones observed with HST so far, is due to a nuclear starburst (SB), which is resolved in UV. In the very luminous Sey2 Mk477, seen as a Sey1 in polarized light, the nuclear SB is at least as luminous as t ...
doc
... 1 piece: Where do we put telescopes when we want to get rid of all atmospheric effects? 2 pieces: What is the difference between a reflecting telescope and a refracting telescope? 3 pieces: How much more light does a 12-m telescope collect than a 3-m telescope? 4 pieces: True or false (and why?): By ...
... 1 piece: Where do we put telescopes when we want to get rid of all atmospheric effects? 2 pieces: What is the difference between a reflecting telescope and a refracting telescope? 3 pieces: How much more light does a 12-m telescope collect than a 3-m telescope? 4 pieces: True or false (and why?): By ...
SRP_Space_Lesson 5 - Scientist in Residence Program
... Star, always point north and long arm of the Crux, the Southern Cross, always points south. Stars move across the night sky throughout the night, they also move ‘off’ the sky depending on the season, or might not be visible at all from a given location. This might become easier to understand if we r ...
... Star, always point north and long arm of the Crux, the Southern Cross, always points south. Stars move across the night sky throughout the night, they also move ‘off’ the sky depending on the season, or might not be visible at all from a given location. This might become easier to understand if we r ...
The Southern Winter PDF
... exposed and, with a temperature of over 220,000 degrees C, it is violently hot, with most of the radiation being emitted in the extreme ultraviolet part of the spectrum. This causes the expanding outer layers of the star to glow in their characteristic colors. The image reveals a complex history of ...
... exposed and, with a temperature of over 220,000 degrees C, it is violently hot, with most of the radiation being emitted in the extreme ultraviolet part of the spectrum. This causes the expanding outer layers of the star to glow in their characteristic colors. The image reveals a complex history of ...
N5128PNSydney
... Low mass (~0.7-7M ) סּmain sequence stars undergo a planetary nebula (PN) phase at ages 0.1-10Gyr depending on initial mass, following the red-giant branch (RGB) and asymptotic giant branch (AGB) to the white dwarf cooling track Length of PN phase ~104 yr (depending on core mass) Emission from the ...
... Low mass (~0.7-7M ) סּmain sequence stars undergo a planetary nebula (PN) phase at ages 0.1-10Gyr depending on initial mass, following the red-giant branch (RGB) and asymptotic giant branch (AGB) to the white dwarf cooling track Length of PN phase ~104 yr (depending on core mass) Emission from the ...
Advanced STARS - WordPress.com
... Q: Know the history of the signs of the zodiac A: By 2,000 BC, the Egyptians and Mesopotamians marked the seasons by the constellations we now call Taurus, Leo, Scorpio and Aquarius. The division of the ecliptic into the zodiacal signs originates in Babylonian ("Chaldean") astronomy in the early to ...
... Q: Know the history of the signs of the zodiac A: By 2,000 BC, the Egyptians and Mesopotamians marked the seasons by the constellations we now call Taurus, Leo, Scorpio and Aquarius. The division of the ecliptic into the zodiacal signs originates in Babylonian ("Chaldean") astronomy in the early to ...
X-Ray Astronomy and Accretion Phenomena
... • Low Mass X-ray Binaries (LMXB) • High Mass X-ray Binary (HMXB) • Low & High labels the mass of the companion star (the mass donor) and not the accretor. ...
... • Low Mass X-ray Binaries (LMXB) • High Mass X-ray Binary (HMXB) • Low & High labels the mass of the companion star (the mass donor) and not the accretor. ...
The Evening Sky Map
... Conjunction – An alignment of two celestial bodies such that they present the least angular separation as viewed from Earth. Constellation – A defined area of the sky containing a star pattern. Diffuse Nebula – A cloud of gas illuminated by nearby stars. Double Star – Two stars that appear close to ...
... Conjunction – An alignment of two celestial bodies such that they present the least angular separation as viewed from Earth. Constellation – A defined area of the sky containing a star pattern. Diffuse Nebula – A cloud of gas illuminated by nearby stars. Double Star – Two stars that appear close to ...
Brahe, Kepler
... solid, and the inner sphere touches all its sides. This worked out great because there were six planets, just right! This was really an elegant geometric model; but the distances did not come out exactly right, but Kepler was so sure of the rightness of his scheme, that he blamed the discrepancies o ...
... solid, and the inner sphere touches all its sides. This worked out great because there were six planets, just right! This was really an elegant geometric model; but the distances did not come out exactly right, but Kepler was so sure of the rightness of his scheme, that he blamed the discrepancies o ...
HR diagram
... located here are about 10 times larger than the Sun, and many time more luminous. Supergiants: A band extending across the top of the HR diagram from blue to red. These are extremely large and luminous stars. White dwarfs: A region in the lower left of the diagram. These are faint, hot, very sma ...
... located here are about 10 times larger than the Sun, and many time more luminous. Supergiants: A band extending across the top of the HR diagram from blue to red. These are extremely large and luminous stars. White dwarfs: A region in the lower left of the diagram. These are faint, hot, very sma ...
Polaris Series Manual
... irreversible damage to your eye. Eye damage is often painless, so there is no warning to the observer that damage has occurred until it is too late. Do not point the telescope at or near the Sun. Do not look through the telescope or viewfinder as it is moving. Children should always have adult super ...
... irreversible damage to your eye. Eye damage is often painless, so there is no warning to the observer that damage has occurred until it is too late. Do not point the telescope at or near the Sun. Do not look through the telescope or viewfinder as it is moving. Children should always have adult super ...
File
... Reading Skills Read the passage below. Then, answer questions 9–10. The Chandler Wobble In 1891, an American astronomer named Seth Carlo Chandler, Jr., discovered that Earth “wobbles” as it spins on its axis. This change in the spin of Earth’s axis, known as the Chandler wobble, can be visualized if ...
... Reading Skills Read the passage below. Then, answer questions 9–10. The Chandler Wobble In 1891, an American astronomer named Seth Carlo Chandler, Jr., discovered that Earth “wobbles” as it spins on its axis. This change in the spin of Earth’s axis, known as the Chandler wobble, can be visualized if ...
Learning Outcomes for GSUSA Camp Activities
... 4. Engage your troops in build and using spectrometers for measurements of their surroundings. How Light Behaves Objective: Understand the relationship between time and the speed of light. Activity: Lookback Time 1. Integrate the concept of time into your explanations of the night sky. a. Which nake ...
... 4. Engage your troops in build and using spectrometers for measurements of their surroundings. How Light Behaves Objective: Understand the relationship between time and the speed of light. Activity: Lookback Time 1. Integrate the concept of time into your explanations of the night sky. a. Which nake ...
Stars and Constellations
... The Milky Way is the galaxy which contains our solar system. On a summer evening you can see a dusty trail of stars stretching across the sky. This is our Milky Way galaxy consisting of hundreds of billions of stars. Instead of seeing each star individually, the combined light appears as a faded ba ...
... The Milky Way is the galaxy which contains our solar system. On a summer evening you can see a dusty trail of stars stretching across the sky. This is our Milky Way galaxy consisting of hundreds of billions of stars. Instead of seeing each star individually, the combined light appears as a faded ba ...
Assignment 3 - Physics Internal Website
... With a spectroscope, we can split the incoming optical light into its constituent wavelengths and begin to investigate the information carried in the spectrum. Here we focus on stars and ionized gas nebulae (HII regions), as they are the brightest objects in optical spectra. Most of the emission fro ...
... With a spectroscope, we can split the incoming optical light into its constituent wavelengths and begin to investigate the information carried in the spectrum. Here we focus on stars and ionized gas nebulae (HII regions), as they are the brightest objects in optical spectra. Most of the emission fro ...
Lecture 10: Stellar Evolution
... years to get the main sequence. A star half the mass of our sun takes 150 million year. An object with mass < 0.08 solar masses never reaches the main sequence and continues to contract. ...
... years to get the main sequence. A star half the mass of our sun takes 150 million year. An object with mass < 0.08 solar masses never reaches the main sequence and continues to contract. ...
Stellar Physics - Craigie High School
... The development of what we know about the Earth, Solar System and Universe is a fascinating study in its own right. From earliest times Man has wondered at and speculated over the ‘Nature of the Heavens’. It is hardly surprising that most people (until around 1500 A.D.) thought that the Sun revolved ...
... The development of what we know about the Earth, Solar System and Universe is a fascinating study in its own right. From earliest times Man has wondered at and speculated over the ‘Nature of the Heavens’. It is hardly surprising that most people (until around 1500 A.D.) thought that the Sun revolved ...
Supplementary Materials for
... of 0.5 for the average image (“deep image”), and a value of 0.3 for the three images consisting of a third of the data (“sub-set images”). For NGS-AO data as well as Speckle SSA data, we use a correlation value of 0.8 for the deep image and 0.6 for the sub-set images. Lastly, for Speckle holography ...
... of 0.5 for the average image (“deep image”), and a value of 0.3 for the three images consisting of a third of the data (“sub-set images”). For NGS-AO data as well as Speckle SSA data, we use a correlation value of 0.8 for the deep image and 0.6 for the sub-set images. Lastly, for Speckle holography ...
What is a white dwarf?
... White dwarfs are the leftover cores of dead stars, usually made mostly of carbon (some are made mostly of helium; others of oxygen or other elements heavier than carbon, up to and including iron). Their name comes from the fact they are 'born' glowing whitehot with high temperatures (remember ...
... White dwarfs are the leftover cores of dead stars, usually made mostly of carbon (some are made mostly of helium; others of oxygen or other elements heavier than carbon, up to and including iron). Their name comes from the fact they are 'born' glowing whitehot with high temperatures (remember ...
Interplanetary Space Travel Accuracy of the Astronomical Unit When
... planet, the satellite’s energy needs to be increased. This is accomplished by installing miniature thrusters onto the satellite. When the timing is right, firing the thrusters in the direction of the satellite’s motion around the Sun will increase the energy. This will create an HTO that will take i ...
... planet, the satellite’s energy needs to be increased. This is accomplished by installing miniature thrusters onto the satellite. When the timing is right, firing the thrusters in the direction of the satellite’s motion around the Sun will increase the energy. This will create an HTO that will take i ...
across
... to nearby stars. This method is only good for nearby stars. The closest star to us is 4 light years away (~25,000 AU) Most stars we see are tens to thousands of light years away. ...
... to nearby stars. This method is only good for nearby stars. The closest star to us is 4 light years away (~25,000 AU) Most stars we see are tens to thousands of light years away. ...
Accuracy of the Astronomical Unit
... planet, the satellite’s energy needs to be increased. This is accomplished by installing miniature thrusters onto the satellite. When the timing is right, firing the thrusters in the direction of the satellite’s motion around the Sun will increase the energy. This will create an HTO that will take i ...
... planet, the satellite’s energy needs to be increased. This is accomplished by installing miniature thrusters onto the satellite. When the timing is right, firing the thrusters in the direction of the satellite’s motion around the Sun will increase the energy. This will create an HTO that will take i ...
stars-notes
... Composition of Stars, continued • A continuous spectrum shows all of the colors, while an absorption spectrum shows which wavelengths of light are absorbed. • The spectrum of a star is an absorption spectrum because the atmosphere of the star absorbs certain portions of the light produced by the sta ...
... Composition of Stars, continued • A continuous spectrum shows all of the colors, while an absorption spectrum shows which wavelengths of light are absorbed. • The spectrum of a star is an absorption spectrum because the atmosphere of the star absorbs certain portions of the light produced by the sta ...
International Ultraviolet Explorer
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.