instructional package - Horry Georgetown Technical College
... and many other galaxies. Explaining what studies of Galactic rotation reveal about the size and mass of our Galaxy, and ...
... and many other galaxies. Explaining what studies of Galactic rotation reveal about the size and mass of our Galaxy, and ...
Universe Discovery Guides: January
... beach ball would be about the size of Betelgeuse. Next time you are at the beach, pick up a grain of sand and compare it to your beach ball. Oxygen and silicon are the elements in that grain of sand and were made inside stars like Betelgeuse billions of years ago. If Betelgeuse were placed where the ...
... beach ball would be about the size of Betelgeuse. Next time you are at the beach, pick up a grain of sand and compare it to your beach ball. Oxygen and silicon are the elements in that grain of sand and were made inside stars like Betelgeuse billions of years ago. If Betelgeuse were placed where the ...
Chapter 3 The Interstellar Medium
... medium amounts to only a small fraction of a galaxy’s luminous mass, but this fraction is strongly correlated with the galaxy’s morphological type. This fraction is ' 0 % for an elliptical galaxy, 1–25 % for a spiral (the figure varies smoothly from type Sa to Sd), and 15–50 % for an irregular galax ...
... medium amounts to only a small fraction of a galaxy’s luminous mass, but this fraction is strongly correlated with the galaxy’s morphological type. This fraction is ' 0 % for an elliptical galaxy, 1–25 % for a spiral (the figure varies smoothly from type Sa to Sd), and 15–50 % for an irregular galax ...
PPT presentation
... first 2.5 mags of its PNLF. Steep turnover at high L’s interpreted as due to sharp cutoff to upper mass limit of PN central stars. ...
... first 2.5 mags of its PNLF. Steep turnover at high L’s interpreted as due to sharp cutoff to upper mass limit of PN central stars. ...
I Cloudy with a Chance of Making a star is no easy thing
... at a wavelength of 158 microns. Earth’s lower atmosphere is opaque at these wavelengths, so they must be observed using space-based observatories such as Herschel Space Observatory, launched last year by the European Space Agency, or telescopes mounted in airplanes, such as the Stratospheric Observa ...
... at a wavelength of 158 microns. Earth’s lower atmosphere is opaque at these wavelengths, so they must be observed using space-based observatories such as Herschel Space Observatory, launched last year by the European Space Agency, or telescopes mounted in airplanes, such as the Stratospheric Observa ...
October 2011 - Newbury Astronomical Society
... Jupiter has many moons and more are being discovered all the time, more than 60 so far. Many are small and may be captured asteroids but four are large and easy to see in a small telescope. Galileo was the first person to have been credited with observing Jupiter using a telescope and discovered the ...
... Jupiter has many moons and more are being discovered all the time, more than 60 so far. Many are small and may be captured asteroids but four are large and easy to see in a small telescope. Galileo was the first person to have been credited with observing Jupiter using a telescope and discovered the ...
Chapter 7: The Galaxy, structure and content File
... appear for stars of all ages. (And these are clumps only in velocity space, not in real space.) The idea that there are groups of stars at similar velocities is itself not new—it actually dates from the early proper motion measurements of nearly a century ago. But these ‘streams’ have generally been ...
... appear for stars of all ages. (And these are clumps only in velocity space, not in real space.) The idea that there are groups of stars at similar velocities is itself not new—it actually dates from the early proper motion measurements of nearly a century ago. But these ‘streams’ have generally been ...
Module 5 Modelling the universe - Pearson Schools and FE Colleges
... A galaxy is a cluster of many billions of stars rotating slowly around its own centre of gravity. Two galaxies are shown in Figures 1 and 2. Figure 1 is a spiral galaxy similar to our own galaxy, the Milky Way. In this photo, ignore all the white dots. The spiral galaxy is way beyond all of those st ...
... A galaxy is a cluster of many billions of stars rotating slowly around its own centre of gravity. Two galaxies are shown in Figures 1 and 2. Figure 1 is a spiral galaxy similar to our own galaxy, the Milky Way. In this photo, ignore all the white dots. The spiral galaxy is way beyond all of those st ...
THE STAR FORMATION AND NUCLEAR ACCRETION HISTORIES OF NORMAL GALAXIES
... of normal galaxies between z ' 0.1 and z ' 1 is also difficult because it requires relatively deep observations over relatively wide areas. In fact, most of our knowledge about the X-ray properties of galaxies still comes from either large-area, local surveys (e.g., Fabbiano 1989; David et al. 1992) ...
... of normal galaxies between z ' 0.1 and z ' 1 is also difficult because it requires relatively deep observations over relatively wide areas. In fact, most of our knowledge about the X-ray properties of galaxies still comes from either large-area, local surveys (e.g., Fabbiano 1989; David et al. 1992) ...
A catalogue of the Chandra Deep Field South with multi
... which is 31 5 30 in size. This catalogue lists astrometry, photometry in 17 passbands from 350 to 930 nm, and ground-based morphological data for 63,501 objects. The catalogue also contains multi-colour classification into the categories Star, Galaxy and Quasar as well as photometric redshifts. We i ...
... which is 31 5 30 in size. This catalogue lists astrometry, photometry in 17 passbands from 350 to 930 nm, and ground-based morphological data for 63,501 objects. The catalogue also contains multi-colour classification into the categories Star, Galaxy and Quasar as well as photometric redshifts. We i ...
December - Rose City Astronomers
... their scopes. As is often the case, trading views and perceptions added to what we all saw and made our observations all the more enjoyable. Candace thought that the star-like object was Markarian 205 but then Chuck noticed the faint bit of galaxy right above it. Candace and I needed some additional ...
... their scopes. As is often the case, trading views and perceptions added to what we all saw and made our observations all the more enjoyable. Candace thought that the star-like object was Markarian 205 but then Chuck noticed the faint bit of galaxy right above it. Candace and I needed some additional ...
flat field determinations using an isolated point source
... STIS photometry and ACS for red and blue stars (Bohlin 2015). A shift of the long wavelength edge of F814W of ~5 times the bulk shift is required to accomplish the same red-blue star correction and seems unreasonably large. However for the GD153 and KF06T2 F814W data, the middle set of 5 average F8 ...
... STIS photometry and ACS for red and blue stars (Bohlin 2015). A shift of the long wavelength edge of F814W of ~5 times the bulk shift is required to accomplish the same red-blue star correction and seems unreasonably large. However for the GD153 and KF06T2 F814W data, the middle set of 5 average F8 ...
plagiarism - Homeschool
... Stars, rocks and people all emit light, and and people included. The temperature of which wavelength of light will be most the star, rock or person determines which strongly radiated depends on the wavelength of light will be most strongly temperature of the star, rock or person. For radiated. In th ...
... Stars, rocks and people all emit light, and and people included. The temperature of which wavelength of light will be most the star, rock or person determines which strongly radiated depends on the wavelength of light will be most strongly temperature of the star, rock or person. For radiated. In th ...
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.