ACTIVE GALAXIES
... BL Lacertae Objects (or Blazars with some Quasars and some Radio Galaxies) • All are characterized by central regions with ...
... BL Lacertae Objects (or Blazars with some Quasars and some Radio Galaxies) • All are characterized by central regions with ...
Electromagnetic Waves - Flipped Out Science with Mrs. Thomas!
... The Hubble Space Telescope has been able to photograph galaxies over 13 billion light-years away from Earth. All of our current estimates of the age of the Universe, and the number of galaxies in the Universe, are based on images and measurements from the Hubble Space Telescope. ...
... The Hubble Space Telescope has been able to photograph galaxies over 13 billion light-years away from Earth. All of our current estimates of the age of the Universe, and the number of galaxies in the Universe, are based on images and measurements from the Hubble Space Telescope. ...
Name: Date: Period:_____ SPECTROSCOPE LAB PART A
... DO: Look around the room you are in and spot something red (actually, any color of the rainbow will suffice). You see red because red light is entering your eye. Where is it coming from? The ceiling lights are giving off white light and it is white light that is striking the “red” object. Why isn’t ...
... DO: Look around the room you are in and spot something red (actually, any color of the rainbow will suffice). You see red because red light is entering your eye. Where is it coming from? The ceiling lights are giving off white light and it is white light that is striking the “red” object. Why isn’t ...
Lesson Plans - Houston ISD
... Ⓡ _SCI.8.8A Describe components of the universe including stars, nebulae and galaxies, and use models such as the Herztsprung-Russell diagram for classification. Ⓢ _SCI.8.8B Recognize that the Sun is a medium-sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousand ...
... Ⓡ _SCI.8.8A Describe components of the universe including stars, nebulae and galaxies, and use models such as the Herztsprung-Russell diagram for classification. Ⓢ _SCI.8.8B Recognize that the Sun is a medium-sized star near the edge of a disc-shaped galaxy of stars and that the Sun is many thousand ...
Topic 4 Assignment - Science 9 Portfolio
... ground-based astronomical telescope by counteracting the effects of the atmosphere on the image. A deforming mirror in the light path of the telescope maintains a pointlike image of the celestial body using either a real star or a laser beam as a reference. Triangulation- the process of determining ...
... ground-based astronomical telescope by counteracting the effects of the atmosphere on the image. A deforming mirror in the light path of the telescope maintains a pointlike image of the celestial body using either a real star or a laser beam as a reference. Triangulation- the process of determining ...
III - National Optical Astronomy Observatory
... explain that in addition to using ccd images, they have taken spectra of hundreds of stars. In OBSERVATIONS AND DATA REDUCTION they present a detailed explanation of every step of their work. The first sentence, “UBV photometry was obtained…” tells others that they took ccd images through 3 filters ...
... explain that in addition to using ccd images, they have taken spectra of hundreds of stars. In OBSERVATIONS AND DATA REDUCTION they present a detailed explanation of every step of their work. The first sentence, “UBV photometry was obtained…” tells others that they took ccd images through 3 filters ...
chap8 (WP)
... In other words, Hubble's law applies to the motion of particles on the surface of a balloon, or to any system that is expanding according to a scale transformation like Eq. (8.3), and the Hubble parameter is the common multiplicative factor in Eq. (8.6). The balloon example shows another feature, na ...
... In other words, Hubble's law applies to the motion of particles on the surface of a balloon, or to any system that is expanding according to a scale transformation like Eq. (8.3), and the Hubble parameter is the common multiplicative factor in Eq. (8.6). The balloon example shows another feature, na ...
Quiz 2 Lecture 12
... a. Ring galaxies can be produced by head-on collisions between galaxies. b. The ratio of the number of elliptical to spiral galaxies remains constant over time. c. The Magellanic Clouds may eventually be "cannibalized" by our Galaxy. d. The shape of a galaxy can be influenced by collision with anoth ...
... a. Ring galaxies can be produced by head-on collisions between galaxies. b. The ratio of the number of elliptical to spiral galaxies remains constant over time. c. The Magellanic Clouds may eventually be "cannibalized" by our Galaxy. d. The shape of a galaxy can be influenced by collision with anoth ...
Chapter 34: Cosmology FYI 1. Radar Ranging 2. Triangulation idea
... The universe is seen to be expanding and thus it is changing with time. An infinitely large and infinitely old universe would never know darkness. This is Olber’s paradox ...
... The universe is seen to be expanding and thus it is changing with time. An infinitely large and infinitely old universe would never know darkness. This is Olber’s paradox ...
The Life Cycle of Stars Webquest
... 1. Learn how to identify stars by their magnitude, color, temperature, and spectral class. 2. Investigate the process of nuclear fusion explained by Einstein's famous equation E = mc2 and learn how mass in the form of hydrogen atoms is converted to helium and causes a release of energy that makes st ...
... 1. Learn how to identify stars by their magnitude, color, temperature, and spectral class. 2. Investigate the process of nuclear fusion explained by Einstein's famous equation E = mc2 and learn how mass in the form of hydrogen atoms is converted to helium and causes a release of energy that makes st ...
NearInfrared
... hundred microns. The infrared radiation was discovered by William Herschel nearly 200 years ago. In Figure 1, we see an old drawing depicting the historic experiment of Herschel. Light from the sun is passing from a prism and is resolved to the well known colors of the rainbow. A thermometer is plac ...
... hundred microns. The infrared radiation was discovered by William Herschel nearly 200 years ago. In Figure 1, we see an old drawing depicting the historic experiment of Herschel. Light from the sun is passing from a prism and is resolved to the well known colors of the rainbow. A thermometer is plac ...
Review Questions for Chp 2
... 43. What is the function of a telescope? 44. Identify two types of telescopes that must be placed in outer space. 45. What size wavelength of light creates the most damage to living things and what type of electromagnetic radiation is it? 46. Define circumpolar stars and give one example of a circum ...
... 43. What is the function of a telescope? 44. Identify two types of telescopes that must be placed in outer space. 45. What size wavelength of light creates the most damage to living things and what type of electromagnetic radiation is it? 46. Define circumpolar stars and give one example of a circum ...
Paper - Astrophysics - University of Oxford
... 2.1. Formation of stars across the Universe When did stars form? To answer this basic question we can make use of the fact that every star must eventually die. Indeed the more massive stars die in spectacular supernova explosions that can outshine a whole galaxy. With an ELT these explosions can be ...
... 2.1. Formation of stars across the Universe When did stars form? To answer this basic question we can make use of the fact that every star must eventually die. Indeed the more massive stars die in spectacular supernova explosions that can outshine a whole galaxy. With an ELT these explosions can be ...
Measuring colour in astronomy
... Many of the galaxies imaged by SDSS are too far away to make out individual features, so one has to measure the spectrum and colour of a whole galaxy. Since the light from a galaxy is just the sum of all the light from the individual stars of which it is made, its spectrum – and hence its colour – i ...
... Many of the galaxies imaged by SDSS are too far away to make out individual features, so one has to measure the spectrum and colour of a whole galaxy. Since the light from a galaxy is just the sum of all the light from the individual stars of which it is made, its spectrum – and hence its colour – i ...
The Galaxy–Dark Matter Connection
... Perhaps the most natural one is starvation (or strangulation): Infalling gas is mainly accreted by the central galaxy. Satellites galaxies (slowly) starve. This is the only environmental process currently included in semi-analytical models. Is this good enough? What about the morphology-density rela ...
... Perhaps the most natural one is starvation (or strangulation): Infalling gas is mainly accreted by the central galaxy. Satellites galaxies (slowly) starve. This is the only environmental process currently included in semi-analytical models. Is this good enough? What about the morphology-density rela ...
parallax and triangulation
... • Use Stellarium to observe the sky and discuss what observations you might be able to use to determine which objects are closest to Earth. • Do size and brightness always lead to accurate conclusions about the distances between Earth and objects out in space? ...
... • Use Stellarium to observe the sky and discuss what observations you might be able to use to determine which objects are closest to Earth. • Do size and brightness always lead to accurate conclusions about the distances between Earth and objects out in space? ...
Galaxies - Stockton University
... stars) is separated by of order 107 times its size from its nearest neighbors (1 Solar Radius vs. 1 pc). Galaxies on the other hand have sizes ranging from 1 to 100 Kpc, but are separated by of order 1 to 10 Mpc from their neighbors, only a factor of 100 to 1000. This means that almost all galaxies ...
... stars) is separated by of order 107 times its size from its nearest neighbors (1 Solar Radius vs. 1 pc). Galaxies on the other hand have sizes ranging from 1 to 100 Kpc, but are separated by of order 1 to 10 Mpc from their neighbors, only a factor of 100 to 1000. This means that almost all galaxies ...
Hubble`s Constant - Scientific Research Publishing
... some definite past time; in such a way that the expansion rate determines the age of the Universe. Hubble’s constant measures how fast is the process of the expansion, and it is involved in Hubble’s law. The larger the Hubble’s constant, the faster the expansion rate. Also, Hubble’s constant is a me ...
... some definite past time; in such a way that the expansion rate determines the age of the Universe. Hubble’s constant measures how fast is the process of the expansion, and it is involved in Hubble’s law. The larger the Hubble’s constant, the faster the expansion rate. Also, Hubble’s constant is a me ...
Hubble Deep Field
The Hubble Deep Field (HDF) is an image of a small region in the constellation Ursa Major, constructed from a series of observations by the Hubble Space Telescope. It covers an area 2.5 arcminutes across, about one 24-millionth of the whole sky, which is equivalent in angular size to a 65 mm tennis ball at a distance of 100 metres. The image was assembled from 342 separate exposures taken with the Space Telescope's Wide Field and Planetary Camera 2 over ten consecutive days between December 18 and December 28, 1995.The field is so small that only a few foreground stars in the Milky Way lie within it; thus, almost all of the 3,000 objects in the image are galaxies, some of which are among the youngest and most distant known. By revealing such large numbers of very young galaxies, the HDF has become a landmark image in the study of the early universe, with the associated scientific paper having received over 900 citations by the end of 2014.Three years after the HDF observations were taken, a region in the south celestial hemisphere was imaged in a similar way and named the Hubble Deep Field South. The similarities between the two regions strengthened the belief that the universe is uniform over large scales and that the Earth occupies a typical region in the Universe (the cosmological principle). A wider but shallower survey was also made as part of the Great Observatories Origins Deep Survey. In 2004 a deeper image, known as the Hubble Ultra-Deep Field (HUDF), was constructed from a few months of light exposure. The HUDF image was at the time the most sensitive astronomical image ever made at visible wavelengths, and it remained so until the Hubble Extreme Deep Field (XDF) was released in 2012.