Lecture 1, PPT version
... Like the Milky Way, M31 is a spiral galaxy where most of the stars reside in a thin disk. The sun resides in the outer reaches of the Milky Way’s disk. Any idea where all the stars you see around M31 are actually located? ...
... Like the Milky Way, M31 is a spiral galaxy where most of the stars reside in a thin disk. The sun resides in the outer reaches of the Milky Way’s disk. Any idea where all the stars you see around M31 are actually located? ...
Things to know: This meant as a guide to what you should know. I
... Be able to recognize in an inertial reference frames. The speed of light is the same for all inertial reference frames. What unusual distortions in time and space are experienced when one moves at speeds near the speed of light? What is gravity in Einstein’s general theory of relativity? What is all ...
... Be able to recognize in an inertial reference frames. The speed of light is the same for all inertial reference frames. What unusual distortions in time and space are experienced when one moves at speeds near the speed of light? What is gravity in Einstein’s general theory of relativity? What is all ...
April
... M82 is an irregular galaxy of 8th magnitude in the constellation Ursa Major (URR-suh MAY-jer). Also known as the Cigar Galaxy for it’s elongated shape, M82 is also about 12 million Light Years distant. The close encounter with M81 described above distorted the shape of this irregular galaxy, creatin ...
... M82 is an irregular galaxy of 8th magnitude in the constellation Ursa Major (URR-suh MAY-jer). Also known as the Cigar Galaxy for it’s elongated shape, M82 is also about 12 million Light Years distant. The close encounter with M81 described above distorted the shape of this irregular galaxy, creatin ...
Elliptical galaxies
... High-redshift early type galaxies “Old galaxies in the young Universe” (z ~ 1.6 – 1.9) Stellar mass ~ 1011 Msun ...
... High-redshift early type galaxies “Old galaxies in the young Universe” (z ~ 1.6 – 1.9) Stellar mass ~ 1011 Msun ...
An introduce of the spectrograph of the GALEX
... lifetime. Winds from hot stars, coronae of cool stars, hot stars in cold galaxies, variability mapping of AGN emission regions. ...
... lifetime. Winds from hot stars, coronae of cool stars, hot stars in cold galaxies, variability mapping of AGN emission regions. ...
Expansion of the Universe
... Stars and galaxies are not getting bigger; rather, the space between all objects is expanding with time The expansion of the universe was discovered in 1929, by American astronomer Edwin Hubble ...
... Stars and galaxies are not getting bigger; rather, the space between all objects is expanding with time The expansion of the universe was discovered in 1929, by American astronomer Edwin Hubble ...
Astrophysics - Florence
... • Then move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. • After that, begin to move from the actual size of a leaf into a microscopic world that re ...
... • Then move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. • After that, begin to move from the actual size of a leaf into a microscopic world that re ...
Here
... Conclusion: It is not possible to reproduce the observed distribution if all galaxies are either prolate or oblate axisymmetrical ellipsoids. ...
... Conclusion: It is not possible to reproduce the observed distribution if all galaxies are either prolate or oblate axisymmetrical ellipsoids. ...
May 2015 - Hermanus Astronomy
... the light emitted from a more distant galaxy, forming a highly magnified, though much distorted, image. In this particular case, the galaxy known as SDP.81 and an intervening galaxy line up so perfectly that the light from the more distant one forms a nearly complete circle as seen from Earth. "Grav ...
... the light emitted from a more distant galaxy, forming a highly magnified, though much distorted, image. In this particular case, the galaxy known as SDP.81 and an intervening galaxy line up so perfectly that the light from the more distant one forms a nearly complete circle as seen from Earth. "Grav ...
AS2001 - University of St Andrews
... Near centre of galaxy: Shorter orbit period--> More passes thru spiral shocks --> More star generations --> m lower --> Z higher. (Also, more infall of IGM on outskirts.) ...
... Near centre of galaxy: Shorter orbit period--> More passes thru spiral shocks --> More star generations --> m lower --> Z higher. (Also, more infall of IGM on outskirts.) ...
Populations of Galaxies and their Formation at z < 7
... integrated stellar mass in the universe increases gradually throughout this time suggesting that galaxy formation does not happen all at once. 3. Galaxies at high redshifts are peculiar and are likely undergoing mergers. The transition from mergers to normal Hubble types occurs at about z~1.5. Calcu ...
... integrated stellar mass in the universe increases gradually throughout this time suggesting that galaxy formation does not happen all at once. 3. Galaxies at high redshifts are peculiar and are likely undergoing mergers. The transition from mergers to normal Hubble types occurs at about z~1.5. Calcu ...
DTU 8e Chap 17 Quasars and Other Active Galaxies
... radio emissions from Cygnus A come from the radio lobes located on either side of the peculiar galaxy seen in the inset, a Hubble Space Telescope image. Each of the two radio lobes extend about 160,000 light-years from the optical galaxy and contain a brilliant, condensed region of radio emission. I ...
... radio emissions from Cygnus A come from the radio lobes located on either side of the peculiar galaxy seen in the inset, a Hubble Space Telescope image. Each of the two radio lobes extend about 160,000 light-years from the optical galaxy and contain a brilliant, condensed region of radio emission. I ...
How Telescopes Changed our Universe
... In our own solar system, telescopes found planets our eyes could not see. Are there other planets outside of our solar system? ...
... In our own solar system, telescopes found planets our eyes could not see. Are there other planets outside of our solar system? ...
PH607 – Galaxies 2
... 2. Interaction. With the discovery of the Sagittarius Dwarf Elliptical Galaxy came the discovery of a ribbon of galactic debris as the polar orbit of Sagittarius and its interaction with the Milky Way tears it apart. Similarly, with the discovery of the Canis Major Dwarf Galaxy , a ring of galactic ...
... 2. Interaction. With the discovery of the Sagittarius Dwarf Elliptical Galaxy came the discovery of a ribbon of galactic debris as the polar orbit of Sagittarius and its interaction with the Milky Way tears it apart. Similarly, with the discovery of the Canis Major Dwarf Galaxy , a ring of galactic ...
Early Star-Forming Galaxies
... Rodighiero used Herschel ’s far-infrared camera to look for galaxies hidden from visible-light observations because of their intervening dust. This allowed the astronomers to assemble a more complete picture of star birth than ever before. The team targeted two well-known regions of the sky that ha ...
... Rodighiero used Herschel ’s far-infrared camera to look for galaxies hidden from visible-light observations because of their intervening dust. This allowed the astronomers to assemble a more complete picture of star birth than ever before. The team targeted two well-known regions of the sky that ha ...
D109-08x
... Astronomers studied the galaxy across several wavelengths to trace how stars, gas, and dust are being tossed around and torn from the fragile galaxy. The composite image at left shows long streamers of gas flowing from the galaxy as it travels through the cluster, called Abell 2125. Hot gas from the ...
... Astronomers studied the galaxy across several wavelengths to trace how stars, gas, and dust are being tossed around and torn from the fragile galaxy. The composite image at left shows long streamers of gas flowing from the galaxy as it travels through the cluster, called Abell 2125. Hot gas from the ...
5-E Galaxy T - McDonald Observatory
... Ratio: Distance:Diameter – how many galaxy diameters between the Milky Way and the (Andromeda Galaxy, Large Magellanic Cloud, Small Magellanic Cloud). Scale Distance from Milky Way – how many Milky Way diameters between the Milky Way and the (Andromeda Galaxy, Large Magellanic Cloud, Small Magellani ...
... Ratio: Distance:Diameter – how many galaxy diameters between the Milky Way and the (Andromeda Galaxy, Large Magellanic Cloud, Small Magellanic Cloud). Scale Distance from Milky Way – how many Milky Way diameters between the Milky Way and the (Andromeda Galaxy, Large Magellanic Cloud, Small Magellani ...
Chapter 14 The Milky Way Galaxy
... From Earth, we see few stars when looking out of galaxy (red arrows), many when looking in (blue and white arrows). Milky Way is how our Galaxy appears in the night sky (b). ...
... From Earth, we see few stars when looking out of galaxy (red arrows), many when looking in (blue and white arrows). Milky Way is how our Galaxy appears in the night sky (b). ...
ACTIVE GALAXIES
... either side of the galaxy • Radio source sizes often 300 kpc or more --- much bigger than their host galaxies. • Head-tail radio galaxies arise when jets are bent by the ram-pressure of gas as the host galaxy moves through it. ...
... either side of the galaxy • Radio source sizes often 300 kpc or more --- much bigger than their host galaxies. • Head-tail radio galaxies arise when jets are bent by the ram-pressure of gas as the host galaxy moves through it. ...
Milky Way galaxy - Uplift North Hills Prep
... the Milky Way. On that day astronomer Edwin Hubble noticed, looking at the photograps, a particular type of star inside the Andromeda Nebula. Hubble realized that the star (Cepheid variable, a type of stars that astronomers use to measure distances in the universe) must be far outside the Milky Way, ...
... the Milky Way. On that day astronomer Edwin Hubble noticed, looking at the photograps, a particular type of star inside the Andromeda Nebula. Hubble realized that the star (Cepheid variable, a type of stars that astronomers use to measure distances in the universe) must be far outside the Milky Way, ...
Friday03
... large-scale densities (?) • Galaxy-galaxy interactions are the most likely cause of observed segregation ...
... large-scale densities (?) • Galaxy-galaxy interactions are the most likely cause of observed segregation ...
STEPHAN`S QUINTET
... Stephan's Quintet in the constellation Pegasus is al grouping of five galaxies of which four form the first compact galaxy group ever discovered. The group was discovered by Édouard Stephan in 1877 at Marseilles Observatory. These galaxies are of interest because of their violent collisions. Four of ...
... Stephan's Quintet in the constellation Pegasus is al grouping of five galaxies of which four form the first compact galaxy group ever discovered. The group was discovered by Édouard Stephan in 1877 at Marseilles Observatory. These galaxies are of interest because of their violent collisions. Four of ...
implication on the mass and
... The solid line evolves as (1+z)3.9 and represents the best fit of the total IR luminosity density at 0
... The solid line evolves as (1+z)3.9 and represents the best fit of the total IR luminosity density at 0
Galaxy Zoo
Galaxy Zoo is a crowdsourced astronomy project which invites people to assist in the morphological classification of large numbers of galaxies. (e.g.) It is an example of citizen science as it enlists the help of members of the public to help in scientific research. There have been seven versions up to July 2014, which are outlined in this article. Galaxy Zoo is part of the Zooniverse, a group of citizen science projects.