Getting to Know: Structure of the Universe
... be the size of a single speck of dust on that quarter. The Sun and our solar system are just one tiny part of the entire Milky Way galaxy. ...
... be the size of a single speck of dust on that quarter. The Sun and our solar system are just one tiny part of the entire Milky Way galaxy. ...
A Universe of Galaxies - Pennsylvania State University
... Quasars have enormous redshifts, indicating that they are moving away from us at more than 90% of the speed of light. Stars in the Milky Way cannot move that fast. The only way to achieve such a high speed is if they are incredibly far away. They are therefore incredibly bright – as bright as 1000 s ...
... Quasars have enormous redshifts, indicating that they are moving away from us at more than 90% of the speed of light. Stars in the Milky Way cannot move that fast. The only way to achieve such a high speed is if they are incredibly far away. They are therefore incredibly bright – as bright as 1000 s ...
Other Galaxies, their Distances, and the Expansion of the Universe
... Galaxies fill the Universe, and are visible at great distances. Each contains hundreds of millions of stars. They can be used to trace and derive properties of the Universe itself, such as whether it is a changing or unchanging structure, the speed of change, etc. ...
... Galaxies fill the Universe, and are visible at great distances. Each contains hundreds of millions of stars. They can be used to trace and derive properties of the Universe itself, such as whether it is a changing or unchanging structure, the speed of change, etc. ...
Linking Asteroids and Meteorites through Reflectance Spectroscopy
... • Quasars are the brightest active galactic nuclei • Emit immense amounts of radiation • Some are brighter than 1,000 Milky Ways ...
... • Quasars are the brightest active galactic nuclei • Emit immense amounts of radiation • Some are brighter than 1,000 Milky Ways ...
Study of the X-ray Source Population and the Dark Matter
... The existence of X-ray binaries in these galaxies, if confirmed, would indicate that these galaxies are able to retain their compact objects, which are believed to obtain high kick velocities at their birth in asymmetric supernova explosions. Therefore, the search for and the study of X-ray sources ...
... The existence of X-ray binaries in these galaxies, if confirmed, would indicate that these galaxies are able to retain their compact objects, which are believed to obtain high kick velocities at their birth in asymmetric supernova explosions. Therefore, the search for and the study of X-ray sources ...
Lecture Notes – Galaxies
... Contain from 10 – 1000s of galaxies, and are gravitationally bound systems. Spacing of galaxies is realtively close, ≈ 100 times diameter of galaxy. (For comparison, in our Galaxy the spacing of stars ≈ 106 diameter of a typical star.) Rich clusters (> 100 members) contain mostly elliptical galaxies ...
... Contain from 10 – 1000s of galaxies, and are gravitationally bound systems. Spacing of galaxies is realtively close, ≈ 100 times diameter of galaxy. (For comparison, in our Galaxy the spacing of stars ≈ 106 diameter of a typical star.) Rich clusters (> 100 members) contain mostly elliptical galaxies ...
Chapter 27 Quasars, Active Galaxies, and Gamma
... • Early radio telescopes found radio emission from stars, nebulae, and some galaxies. • There were also point-like, or star-like, radio sources which varied rapidly these are the `quasi-stellar’ radio sources or quasars. • In visible light quasars appear as points, like stars. ...
... • Early radio telescopes found radio emission from stars, nebulae, and some galaxies. • There were also point-like, or star-like, radio sources which varied rapidly these are the `quasi-stellar’ radio sources or quasars. • In visible light quasars appear as points, like stars. ...
ALMA_BoJun605_Gruppioni
... CO line. (1h per source) • Confirm with observation of high/lower order CO line. (1h per source) ...
... CO line. (1h per source) • Confirm with observation of high/lower order CO line. (1h per source) ...
6th Grade Science Chapter 19 Jeopardy Game
... they are very similar to early galaxies. b. Distant galaxies share many characteristics with early galaxies. c. Distant galaxies have not changed as much as close galaxies, so they are most similar to early galaxies. d. Because it takes a long time for light to travel through space, looking at dista ...
... they are very similar to early galaxies. b. Distant galaxies share many characteristics with early galaxies. c. Distant galaxies have not changed as much as close galaxies, so they are most similar to early galaxies. d. Because it takes a long time for light to travel through space, looking at dista ...
Lab 9
... How accurate were you? Is the criterion or criteria you used a good way to find galaxy distances? ...
... How accurate were you? Is the criterion or criteria you used a good way to find galaxy distances? ...
Exercise 8
... How accurate were you? Is the criterion or criteria you used a good way to find galaxy distances? ...
... How accurate were you? Is the criterion or criteria you used a good way to find galaxy distances? ...
AS 60 - Astronomy of the Americas
... Astronomy 4 - Introduction to Astronomy Module 8 Quiz 1. If you take a spectrum of a galaxy, what type of spectrum will you observe? a. b. c. d. ...
... Astronomy 4 - Introduction to Astronomy Module 8 Quiz 1. If you take a spectrum of a galaxy, what type of spectrum will you observe? a. b. c. d. ...
Unit 1
... • In the 1700’s, Charles Messier was observing comets, and kept finding objects that while fuzzy, were not comets – He made a list (or catalog) of these undesired objects, so he could avoid seeing them – They became known as Messier Objects, a number preceded by an M. – M31 (the Andromeda galaxy) is ...
... • In the 1700’s, Charles Messier was observing comets, and kept finding objects that while fuzzy, were not comets – He made a list (or catalog) of these undesired objects, so he could avoid seeing them – They became known as Messier Objects, a number preceded by an M. – M31 (the Andromeda galaxy) is ...
LOFAR - Veres Péter
... • only present at low frequencies Things to expect • if the LFVs turn out to be high redshift objects they define a clean sample of galaxies • if they are as small as we think they’re very young, we can obtain data abut how strong radio sources form • perhaps they’re confined in dense ISM might expl ...
... • only present at low frequencies Things to expect • if the LFVs turn out to be high redshift objects they define a clean sample of galaxies • if they are as small as we think they’re very young, we can obtain data abut how strong radio sources form • perhaps they’re confined in dense ISM might expl ...
Stars and Galaxies
... that’s readily visible to human eyes. This great amalgamation of stars stands almost directly overhead late this evening. When viewed from a dark skywatching location, far from city lights, it looks like a faint, fuzzy blob. But that blob is the combined glow of hundreds of billions of stars — seen ...
... that’s readily visible to human eyes. This great amalgamation of stars stands almost directly overhead late this evening. When viewed from a dark skywatching location, far from city lights, it looks like a faint, fuzzy blob. But that blob is the combined glow of hundreds of billions of stars — seen ...
Quasars - Ann Arbor Earth Science
... radio galaxy - a galaxy showing unusually strong radio emission, too intense to be produced by the normal processes of starbirth and stardeath. This may come only from the nucleus, or from a pair of more or less symmetric lobes stretching as far as a million light-years. Many show emission from je ...
... radio galaxy - a galaxy showing unusually strong radio emission, too intense to be produced by the normal processes of starbirth and stardeath. This may come only from the nucleus, or from a pair of more or less symmetric lobes stretching as far as a million light-years. Many show emission from je ...
Galaxies - science9atsouthcarletonhs
... Galaxy Clusters • Most galaxies are not alone in the vast expanse of space, but are connected to one or more other galaxies by gravity • These collections of galaxies are known as galaxy clusters and they too appear to be organized into larger “superclusters” ...
... Galaxy Clusters • Most galaxies are not alone in the vast expanse of space, but are connected to one or more other galaxies by gravity • These collections of galaxies are known as galaxy clusters and they too appear to be organized into larger “superclusters” ...
A glance at the beginning of the Universe
... •To determine the Hubble constant •To find the age of the Universe ...
... •To determine the Hubble constant •To find the age of the Universe ...
color-stellar mass diagram
... constituent stars (ignoring complications such as internal absorption by dust or co-evolving binary systems): ...
... constituent stars (ignoring complications such as internal absorption by dust or co-evolving binary systems): ...
Post-class version
... Your report will be due at the final exam, Wednesday, April 30. Not required if you have already been to Brooks this semester & written a report. As before, take elevator to 5th floor of this building, walk up to 6th floor. Bring your blue ticket with your name and my name (Nancy Morrison) written o ...
... Your report will be due at the final exam, Wednesday, April 30. Not required if you have already been to Brooks this semester & written a report. As before, take elevator to 5th floor of this building, walk up to 6th floor. Bring your blue ticket with your name and my name (Nancy Morrison) written o ...
Galaxies – Island universes
... • Galaxies form from collisions of proto-galactic clumps in the first billion years or so after the Big Bang • Many have later infalling matter which has been pulled on by nearby mass and thus doesn’t fall straight in. It settles into a rotating disk, arranging itself into a flat, roughly circularly ...
... • Galaxies form from collisions of proto-galactic clumps in the first billion years or so after the Big Bang • Many have later infalling matter which has been pulled on by nearby mass and thus doesn’t fall straight in. It settles into a rotating disk, arranging itself into a flat, roughly circularly ...
ppt
... few galaxies (1-2 Mpc). Even Hubble Space Telescope cannot find Cepheids beyond the Virgo cluster (16 Mpc). Beyond 1-2Mpc, Hubble used… ...
... few galaxies (1-2 Mpc). Even Hubble Space Telescope cannot find Cepheids beyond the Virgo cluster (16 Mpc). Beyond 1-2Mpc, Hubble used… ...
The Milky Way and Its Neighbors
... Active Star Formation (SF) occurring in spiral arms is very bright in UV Young stars emit towards UV Several types shown below ...
... Active Star Formation (SF) occurring in spiral arms is very bright in UV Young stars emit towards UV Several types shown below ...
Pea galaxy
A Pea galaxy, also referred to as a Pea or Green Pea, might be a type of Luminous Blue Compact Galaxy which is undergoing very high rates of star formation. Pea galaxies are so-named because of their small size and greenish appearance in the images taken by the Sloan Digital Sky Survey (SDSS).Pea Galaxies were first discovered in 2007 by the volunteer users within the forum section of the online astronomy project Galaxy Zoo (GZ).