12/08/14-- Student ID ______ TA Name
... that the Milky Way was just one of many galaxies, showed us something quite different. Almost over night we discovered that a. a huge volume of dark matter and dark energy surrounds the Milky Way. b. our solar system was just one of many planetary systems in the Orion Arm of the Galaxy. c. our solar ...
... that the Milky Way was just one of many galaxies, showed us something quite different. Almost over night we discovered that a. a huge volume of dark matter and dark energy surrounds the Milky Way. b. our solar system was just one of many planetary systems in the Orion Arm of the Galaxy. c. our solar ...
Section 4
... discovered a planet revolving around another ordinary star. They used a method similar to the one used in studying binary stars. The astronomers observed that a star was moving slightly toward and away from us. They knew that the invisible object causing the movement didn’t have enough mass to be a ...
... discovered a planet revolving around another ordinary star. They used a method similar to the one used in studying binary stars. The astronomers observed that a star was moving slightly toward and away from us. They knew that the invisible object causing the movement didn’t have enough mass to be a ...
ppt
... Simulations are challenging due to large range of scales involved (use of “sink” particles) Previous simulations just reach protostars or start after fragmentation to follow protostellar ...
... Simulations are challenging due to large range of scales involved (use of “sink” particles) Previous simulations just reach protostars or start after fragmentation to follow protostellar ...
Mark Rubin
... We can use the results from JWST and/or ground-based infrared surveys to search for intense Lyman α sources. • When strong Lyman α emitters are found, both the Lyman α and the He II lines can be observed with R > 3000 spectroscopy using a GSMT. Observations can focus on the region in which He II is ...
... We can use the results from JWST and/or ground-based infrared surveys to search for intense Lyman α sources. • When strong Lyman α emitters are found, both the Lyman α and the He II lines can be observed with R > 3000 spectroscopy using a GSMT. Observations can focus on the region in which He II is ...
Lecture 17
... detect stellar-mass lenses in the Galactic halo using stars in the Large Magellanic cloud (LMC) which is 50 kpc away, you can show that the angular separation of the lensed objects would be sub-milliarcseconds. So how would we try to use this technique to detect a large population of dark massive po ...
... detect stellar-mass lenses in the Galactic halo using stars in the Large Magellanic cloud (LMC) which is 50 kpc away, you can show that the angular separation of the lensed objects would be sub-milliarcseconds. So how would we try to use this technique to detect a large population of dark massive po ...
Friday03
... physics, or just the evolving field and infall rate (Ellingson et al. 2001)? Steidel et al. (1999) ...
... physics, or just the evolving field and infall rate (Ellingson et al. 2001)? Steidel et al. (1999) ...
the origin of the hubble sequence - Yale Astronomy
... prediction does not, however, provide any ready basis for understanding why the gas depletion timescale should increase along the Hubble sequence, since the average gas surface density does not vary much along this sequence. A second, perhaps more realistic assumption is that the stability parameter ...
... prediction does not, however, provide any ready basis for understanding why the gas depletion timescale should increase along the Hubble sequence, since the average gas surface density does not vary much along this sequence. A second, perhaps more realistic assumption is that the stability parameter ...
Virgo constellation
... circles the bulge of the galaxy, and it is rich with gas, dust and hydrogen gas. Because it has all the elements needed for star formation, it’s not surprising that astronomers have found many sites of stars inside. (space-facts.com) Along with M104’s core being unusually large and bright, another o ...
... circles the bulge of the galaxy, and it is rich with gas, dust and hydrogen gas. Because it has all the elements needed for star formation, it’s not surprising that astronomers have found many sites of stars inside. (space-facts.com) Along with M104’s core being unusually large and bright, another o ...
Lokal fulltext - Chalmers Publication Library
... intense mass-loss and eventually explode as supernovae, adding kinetic energy and freshly synthesised material to the interstellar medium. The circumstellar material ejected by the star affects the shape and evolution of the future supernova remnant, and how the material is incorporated into the int ...
... intense mass-loss and eventually explode as supernovae, adding kinetic energy and freshly synthesised material to the interstellar medium. The circumstellar material ejected by the star affects the shape and evolution of the future supernova remnant, and how the material is incorporated into the int ...
Galaxies (and stars) in the far infrared: results from the AKARI All
... Supply of metals to the interstellar space II: final life stages of stars The death of light stars : planetary nebulae (PNe) Stars with masses similar to the Sun run out the hydrogen in the core, change their equilibrium structure and expand, and become cool huge stars (red giant branch stars: RGBs ...
... Supply of metals to the interstellar space II: final life stages of stars The death of light stars : planetary nebulae (PNe) Stars with masses similar to the Sun run out the hydrogen in the core, change their equilibrium structure and expand, and become cool huge stars (red giant branch stars: RGBs ...
PPV_hd169142
... obtained with the Goddard Fabry-Perot at the Apache Point Observatory 3.5m. Fig. 5:NICMOS camera 2 (FOV = 19.2” x 19.3”, scale: ~ 75.8 mas/pixel) direct and coronagraphic imagery of HD 169142A and its nearby environment was obtained in a single HST orbit on 2005 April 30. Each observation set consis ...
... obtained with the Goddard Fabry-Perot at the Apache Point Observatory 3.5m. Fig. 5:NICMOS camera 2 (FOV = 19.2” x 19.3”, scale: ~ 75.8 mas/pixel) direct and coronagraphic imagery of HD 169142A and its nearby environment was obtained in a single HST orbit on 2005 April 30. Each observation set consis ...
SCIN 293-PL-New Course
... (max 100 characters including spaces) 9. Short course title: AST (Stars/Galaxies/Cosmology) (max. 30 characters including spaces) 10. Catalog course description (max. 60 words, excluding requisites): The course will examine the structure and evolution of stars, including the Sun, formation of galaxi ...
... (max 100 characters including spaces) 9. Short course title: AST (Stars/Galaxies/Cosmology) (max. 30 characters including spaces) 10. Catalog course description (max. 60 words, excluding requisites): The course will examine the structure and evolution of stars, including the Sun, formation of galaxi ...
Hypervelocity Globular: A beacon of merging clusters Oleg Gnedin with Alexey Vikhlinin
... • gravitational potential gain Depending on the merger mass ratio and M86 distance, the probability of HVGC velocity being as extreme as observed is 5% to 35% Not extreme! ...
... • gravitational potential gain Depending on the merger mass ratio and M86 distance, the probability of HVGC velocity being as extreme as observed is 5% to 35% Not extreme! ...
a MS Word version.
... series of equations, since there is actually more than one equation within some of the four equation "descriptions"), that describe the physics that can be used to calculate the internal structure and time evolution of the Sun and stars. For each equation give a short description of the physical pro ...
... series of equations, since there is actually more than one equation within some of the four equation "descriptions"), that describe the physics that can be used to calculate the internal structure and time evolution of the Sun and stars. For each equation give a short description of the physical pro ...
Document
... (in absolute value, kinetic energy = ½ potential energy) • Estimate of the mass of a cluster (of galaxies): R = mean distance between 2 galaxies → EP ~ −GM2/2R (*) V = mean velocity of galaxies → EK ~ ½ MV2 (* /2 in order not to count twice the energy associated to a pair of galaxies) ...
... (in absolute value, kinetic energy = ½ potential energy) • Estimate of the mass of a cluster (of galaxies): R = mean distance between 2 galaxies → EP ~ −GM2/2R (*) V = mean velocity of galaxies → EK ~ ½ MV2 (* /2 in order not to count twice the energy associated to a pair of galaxies) ...
Physics-Y11-LP3 - All Saints` Catholic High School
... • understand the role of observations of Cepheid variable stars in establishing the scale of the Universe and the nature of most spiral nebulas as distant galaxies • describe some of the new information that telescopes revealed about the Milky Way and objects beyond the Milky Way • recall the main i ...
... • understand the role of observations of Cepheid variable stars in establishing the scale of the Universe and the nature of most spiral nebulas as distant galaxies • describe some of the new information that telescopes revealed about the Milky Way and objects beyond the Milky Way • recall the main i ...
Computer Simulation of Dark Matter Effects on Galaxy Collisions
... program was written in C, and this year that program has been modified to fit this year’s problem. This year, the code has been modified to do two galaxies and include galaxygalaxy interactions. Currently, for this model dark matter is being treated by a large mass point at the center of the galaxy. ...
... program was written in C, and this year that program has been modified to fit this year’s problem. This year, the code has been modified to do two galaxies and include galaxygalaxy interactions. Currently, for this model dark matter is being treated by a large mass point at the center of the galaxy. ...
Solar and Lunar Eclipse, the Sky,_x000b_The Milky
... solar eclipses are in general rare in polar regions. In summer the temperature difference in significant during an eclipse and the people of the north were mainly hunters or fishers and the sun was not of that great importance compared to southern agricultural cultures. One myth that we found was in ...
... solar eclipses are in general rare in polar regions. In summer the temperature difference in significant during an eclipse and the people of the north were mainly hunters or fishers and the sun was not of that great importance compared to southern agricultural cultures. One myth that we found was in ...
Ultra faint dwarfs: probing early cosmic star formation
... lower redshifts. Their smaller baryonic content is the result of shock-heating of the infalling gas during major merging events (Cox et al. 2004) which stops accretion. Finally, gas-poor systems formed by merging of recently virialized, Mh > Msf progenitors. Since most of the diffuse gas is still ac ...
... lower redshifts. Their smaller baryonic content is the result of shock-heating of the infalling gas during major merging events (Cox et al. 2004) which stops accretion. Finally, gas-poor systems formed by merging of recently virialized, Mh > Msf progenitors. Since most of the diffuse gas is still ac ...
A comparison of the s- and r-process element evolution in local
... models suited to adjusting their main features, we are able to impose constraints on the production of these elements and also to shed some light on the possible evolutionary connection between the Milky Way and its neighbouring dSph galaxies. A comparison between the chemical evolution of the Milky ...
... models suited to adjusting their main features, we are able to impose constraints on the production of these elements and also to shed some light on the possible evolutionary connection between the Milky Way and its neighbouring dSph galaxies. A comparison between the chemical evolution of the Milky ...
Ch 19 Directed Reading
... 17. A huge explosion in which a large star dies is called a _____________________________. 18. A star made up of neutrons is called a _____________________________. 19. A spinning neutron star that emits pulses of energy is called a _____________________________. 20. An object so massive and dense t ...
... 17. A huge explosion in which a large star dies is called a _____________________________. 18. A star made up of neutrons is called a _____________________________. 19. A spinning neutron star that emits pulses of energy is called a _____________________________. 20. An object so massive and dense t ...
Galactic Evolution - Harvard-Smithsonian Center for Astrophysics
... are observed (Gawiser et al, Ap J, v671, p278, 2007) at even earlier epochs, z ≈ 3, or ~11 Gya, and although all these primeval systems are near currently detectable limits, most have (M/L)-1 = Φm < 0.1 erg/s/g and often much less. Galactic encounters among such minor, oddly shaped blobs predominant ...
... are observed (Gawiser et al, Ap J, v671, p278, 2007) at even earlier epochs, z ≈ 3, or ~11 Gya, and although all these primeval systems are near currently detectable limits, most have (M/L)-1 = Φm < 0.1 erg/s/g and often much less. Galactic encounters among such minor, oddly shaped blobs predominant ...
Metal-Like Gravity and Its Cosmological Applications
... and unlike attract. It however presents a challenge to cosmological observation since baryons seem to show selfattractive behavior. It proposes a long range gravitational interaction with baryon-baryon repulsive gravitational interaction suppressed by a metal-like attraction mechanism. At close rang ...
... and unlike attract. It however presents a challenge to cosmological observation since baryons seem to show selfattractive behavior. It proposes a long range gravitational interaction with baryon-baryon repulsive gravitational interaction suppressed by a metal-like attraction mechanism. At close rang ...
