21. The Milky Way Galaxy
... actually due to the stars' collective gravity. The higher gravity of the jams keeps stars in them for longer. Calculations and computer simulations show this situation can be maintained for a long time. ...
... actually due to the stars' collective gravity. The higher gravity of the jams keeps stars in them for longer. Calculations and computer simulations show this situation can be maintained for a long time. ...
PART 3 Galaxies
... The Milky Way is a spiral galaxy approximately 30 kps (100K Ly) across. The Sun is located around 8 kpc from the center, in one of the spiral arms. Most of the stars are concentrated in the galactic plane, or in the central bulge at the center of the galaxy ...
... The Milky Way is a spiral galaxy approximately 30 kps (100K Ly) across. The Sun is located around 8 kpc from the center, in one of the spiral arms. Most of the stars are concentrated in the galactic plane, or in the central bulge at the center of the galaxy ...
Hubblecast72: ESO 137
... images from the Chandra X-ray Observatory, a bright, extended fog can be seen enveloping the galaxy and streaming off into space. These X-ray tails are formed from the cool gas stripped from ESO 137-001, which has since been heated to many millions of degrees Celsius by the hot gas in the cluster. ...
... images from the Chandra X-ray Observatory, a bright, extended fog can be seen enveloping the galaxy and streaming off into space. These X-ray tails are formed from the cool gas stripped from ESO 137-001, which has since been heated to many millions of degrees Celsius by the hot gas in the cluster. ...
BML_V
... for this, given its sensitivity, angular resolution, and complement of high-resolution spectrometers, now it is equipped with ALFA. gALFA exploits these capabilities. For instance Stanimirovic et al., ApJ, 680, 276 (2008) examined the northern extremity of the Magellanic Stream, and find that its ta ...
... for this, given its sensitivity, angular resolution, and complement of high-resolution spectrometers, now it is equipped with ALFA. gALFA exploits these capabilities. For instance Stanimirovic et al., ApJ, 680, 276 (2008) examined the northern extremity of the Magellanic Stream, and find that its ta ...
new_qwk11
... the Special Theory of Relativity B. The General Theory of Relativity was designed to explain situations where the speeds of objects are close to the speed of light C. The Special Theory of Relativity states that a moving ruler is measured to be longer than its twin ruler at rest D. The mass or inert ...
... the Special Theory of Relativity B. The General Theory of Relativity was designed to explain situations where the speeds of objects are close to the speed of light C. The Special Theory of Relativity states that a moving ruler is measured to be longer than its twin ruler at rest D. The mass or inert ...
Mapping the Cosmos Step 1 – The Solar System
... 7. Draw (on the board!) the Galactic halo of dark matter, which has a radius of about 50 kpc, as a circle around the Galaxy figure drawn earlier. (Remember, the scale is 1 cm = 10 kpc, or 1 kpc = 1 mm) 8. Draw dots for the Large and Small Magellenic clouds, the Milky Way's irregular "satellite gala ...
... 7. Draw (on the board!) the Galactic halo of dark matter, which has a radius of about 50 kpc, as a circle around the Galaxy figure drawn earlier. (Remember, the scale is 1 cm = 10 kpc, or 1 kpc = 1 mm) 8. Draw dots for the Large and Small Magellenic clouds, the Milky Way's irregular "satellite gala ...
source
... 7. Draw (on the board!) the Galactic halo of dark matter, which has a radius of about 50 kpc, as a circle around the Galaxy figure drawn earlier. (Remember, the scale is 1 cm = 10 kpc, or 1 kpc = 1 mm) 8. Draw dots for the Large and Small Magellenic clouds, the Milky Way's irregular "satellite gala ...
... 7. Draw (on the board!) the Galactic halo of dark matter, which has a radius of about 50 kpc, as a circle around the Galaxy figure drawn earlier. (Remember, the scale is 1 cm = 10 kpc, or 1 kpc = 1 mm) 8. Draw dots for the Large and Small Magellenic clouds, the Milky Way's irregular "satellite gala ...
Lecture 1
... 1951: Detection of 21cm line by Ewen & Purcell using home-build radio detector. Beat Oort & Muller to it. HI is seen everywhere in the sky. 1954: First maps of the HI distribution in the Milky Way by Hulst, Muller & Oort. The Galactic disk is estimated to contain 5ₒ109M⊙ of atomic gas (ca. 10% of th ...
... 1951: Detection of 21cm line by Ewen & Purcell using home-build radio detector. Beat Oort & Muller to it. HI is seen everywhere in the sky. 1954: First maps of the HI distribution in the Milky Way by Hulst, Muller & Oort. The Galactic disk is estimated to contain 5ₒ109M⊙ of atomic gas (ca. 10% of th ...
Day-5
... 4.3 years (yr) to get to the nearest star. 100,000 yr to cross the galaxy. 2.9 million yr to get to the nearest big galaxy. 10 billion yr to come from distant galaxies. ...
... 4.3 years (yr) to get to the nearest star. 100,000 yr to cross the galaxy. 2.9 million yr to get to the nearest big galaxy. 10 billion yr to come from distant galaxies. ...
Astronomy Quiz #1 Answers
... (5 – KU) __E____ contains hundreds of thousands of stars, drawn together by the stars’ ...
... (5 – KU) __E____ contains hundreds of thousands of stars, drawn together by the stars’ ...
Chapter22_New
... Herschel and Kapteyn, though basically wrong, with respect. 3. The Rotation of the Milky Way Rotation curves for other galaxies (the one for the Milky Way is shown in Figure 22.30) are the basis for the discovery that there is considerable dark matter in galaxies, so it is probably a good idea to em ...
... Herschel and Kapteyn, though basically wrong, with respect. 3. The Rotation of the Milky Way Rotation curves for other galaxies (the one for the Milky Way is shown in Figure 22.30) are the basis for the discovery that there is considerable dark matter in galaxies, so it is probably a good idea to em ...
Chapters 16,17
... periods. Their use is limited to the range where they can still be detected by telescopes. ...
... periods. Their use is limited to the range where they can still be detected by telescopes. ...
PowerPoint - Chandra X
... In Stephan’s Quintet collisions of the galaxies with each other and with the hot gas are stripping cool gas from spiral galaxies and transforming them into elliptical galaxies. Reference: G. Trinchieri et al. 2003 Astron. & Astrophys. (in ...
... In Stephan’s Quintet collisions of the galaxies with each other and with the hot gas are stripping cool gas from spiral galaxies and transforming them into elliptical galaxies. Reference: G. Trinchieri et al. 2003 Astron. & Astrophys. (in ...
Faux Final
... 1) Make a table with four columns. Fill it out with column headings: (1) approximate age of the moon in days, where new = 0 days, (2) name of the lunar phase, (3) a sketch of the appearance of the lit portion of the lunar disk, and (4) the time of day when this lunar phase is seen high in the sky, l ...
... 1) Make a table with four columns. Fill it out with column headings: (1) approximate age of the moon in days, where new = 0 days, (2) name of the lunar phase, (3) a sketch of the appearance of the lit portion of the lunar disk, and (4) the time of day when this lunar phase is seen high in the sky, l ...
22. The Milky Way Galaxy
... Sun moves at 220 km/sec around center. An orbit takes 240 million years. Stars closer to center take less time to orbit. Stars further from center take longer. => rotation not rigid like a phonograph record or a merry-go-round. Rather, ...
... Sun moves at 220 km/sec around center. An orbit takes 240 million years. Stars closer to center take less time to orbit. Stars further from center take longer. => rotation not rigid like a phonograph record or a merry-go-round. Rather, ...
Pre-lab 12: Galaxies and the Expansion of the Universe So far we
... So far we have talked about our solar system and the local galactic neighborhood. In the next few labs we will begin discussing the entire universe at a glance. First, let us get an idea of how the individual stars in a typical galaxy are laid out. As we learned from previous labs, stars themselves ...
... So far we have talked about our solar system and the local galactic neighborhood. In the next few labs we will begin discussing the entire universe at a glance. First, let us get an idea of how the individual stars in a typical galaxy are laid out. As we learned from previous labs, stars themselves ...
Black Hole at Galactic Center
... D) The Keck/UCLA group did more careful measurements, concluding that T = 15.78 years and rave = 980 AU’s. Do a better mass calculation on the object at the core, first in kg, then in solar masses. Just plug your converted numbers for T and rave into your algebraic solution for M from part C). ...
... D) The Keck/UCLA group did more careful measurements, concluding that T = 15.78 years and rave = 980 AU’s. Do a better mass calculation on the object at the core, first in kg, then in solar masses. Just plug your converted numbers for T and rave into your algebraic solution for M from part C). ...
Active Galaxies and Quasars: the most luminous objects in the
... The discovery of the quasar 3C273 (Schmidt 1963) Optical image ...
... The discovery of the quasar 3C273 (Schmidt 1963) Optical image ...
Chapter 18 - Stars - University of New Mexico
... What is dark matter? • Some consists of dim objects (brown dwarfs, white dwarfs, neutron stars, black holes, i.e. “MACHOs”), but not all. Limits on this from “gravitational microlensing” in the halo. Result: few to 20% of dark matter at most. ...
... What is dark matter? • Some consists of dim objects (brown dwarfs, white dwarfs, neutron stars, black holes, i.e. “MACHOs”), but not all. Limits on this from “gravitational microlensing” in the halo. Result: few to 20% of dark matter at most. ...
The Herschel view on the dust properties of the Large Magellanic
... observations of the Large Magellanic Cloud (LMC). We have fit the spectral energy distribution (SED) of each pixel from 3 to 500 μm, with realistic grain properties (silicate, carbon grains and PAHs, with a size distribution) and a distribution of temperatures accounting for the mixing of several reg ...
... observations of the Large Magellanic Cloud (LMC). We have fit the spectral energy distribution (SED) of each pixel from 3 to 500 μm, with realistic grain properties (silicate, carbon grains and PAHs, with a size distribution) and a distribution of temperatures accounting for the mixing of several reg ...
$doc.title
... • The brightest and bluest, OB stars explode within a few million years, and thus don’t go far from the spiral arm where they were born ...
... • The brightest and bluest, OB stars explode within a few million years, and thus don’t go far from the spiral arm where they were born ...
