suggested
... the dust. Thirdly, laboratory techniques were applied to the properties and evolution of possible grain materials. It was the advent of infrared techniques that made it possible to demonstrate conclusively that something like rocks (but very small, of course) constituted a large fraction of the inte ...
... the dust. Thirdly, laboratory techniques were applied to the properties and evolution of possible grain materials. It was the advent of infrared techniques that made it possible to demonstrate conclusively that something like rocks (but very small, of course) constituted a large fraction of the inte ...
Galaxies
... visual appearance does not allow us to place them into any of the other categories just discussed. Irregulars tend to be rich in interstellar matter and young, blue stars, but they lack any regular structure such as well-defined spiral arms or central bulges. They are conventionally divided into two ...
... visual appearance does not allow us to place them into any of the other categories just discussed. Irregulars tend to be rich in interstellar matter and young, blue stars, but they lack any regular structure such as well-defined spiral arms or central bulges. They are conventionally divided into two ...
Solar System
... planets,[lower-alpha 3] with the remainder being significantly Oort cloud, which is thought to be the source for longsmaller objects, such as dwarf planets and small Solar period comets, may also exist at a distance roughly a thouSystem bodies. Of the objects that orbit the Sun indi- sand times furth ...
... planets,[lower-alpha 3] with the remainder being significantly Oort cloud, which is thought to be the source for longsmaller objects, such as dwarf planets and small Solar period comets, may also exist at a distance roughly a thouSystem bodies. Of the objects that orbit the Sun indi- sand times furth ...
W. Couch "Environment of E+A galaxies"
... E+A’s residing within or in close proximity to rich clusters: •All the known rich clusters of galaxies (from the Abell, APM, Edinburgh-Durham Catalogues) within the 2dFGRS survey regions have been identified (and further studied) by De Propris et al. (2002). •The transverse separation, Dt, and the ...
... E+A’s residing within or in close proximity to rich clusters: •All the known rich clusters of galaxies (from the Abell, APM, Edinburgh-Durham Catalogues) within the 2dFGRS survey regions have been identified (and further studied) by De Propris et al. (2002). •The transverse separation, Dt, and the ...
Presentation on the universe
... 5 Which best describes the Big Bang Theory? A The universe has always been the way it is today. B The universe began from a dying star C The universe was created by a singleexplosion The universe is full of explosions, or "big bangs," D that are making it expand ...
... 5 Which best describes the Big Bang Theory? A The universe has always been the way it is today. B The universe began from a dying star C The universe was created by a singleexplosion The universe is full of explosions, or "big bangs," D that are making it expand ...
Observing the Clustering of Matter and Galaxies
... The Correlation of IGM Absorption at different redshifts • This probes the mass between galaxies • One can follow the evolution of structure with redshift ...
... The Correlation of IGM Absorption at different redshifts • This probes the mass between galaxies • One can follow the evolution of structure with redshift ...
6th Grade The Theoretical Beginning of the Universe / Big Bang
... Last year, you learned it is possible to estimate the distance a star is from Earth by looking at its brightness. Hubble used a number of methods to estimate how far away each star is. But he did much more. He used the color of each star's light to determine which direction they are moving...and how ...
... Last year, you learned it is possible to estimate the distance a star is from Earth by looking at its brightness. Hubble used a number of methods to estimate how far away each star is. But he did much more. He used the color of each star's light to determine which direction they are moving...and how ...
Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping
... Galaxy clusters have been extensively used to study galaxy evolution because they allow us to discern between nature and nurture galaxy evolutionary processes [1,2]. For simplicity, hereafter, we refer to the intra-cluster medium (ICM) as the hot medium of both groups and clusters of galaxies. As ga ...
... Galaxy clusters have been extensively used to study galaxy evolution because they allow us to discern between nature and nurture galaxy evolutionary processes [1,2]. For simplicity, hereafter, we refer to the intra-cluster medium (ICM) as the hot medium of both groups and clusters of galaxies. As ga ...
Physics Specimen Question Paper National 5
... A glass conservatory is being built on house Q. The homeowner wants the inside of the conservatory to remain as cool as possible throughout the summer. Using information from the graph, explain which type of glass should be used. ...
... A glass conservatory is being built on house Q. The homeowner wants the inside of the conservatory to remain as cool as possible throughout the summer. Using information from the graph, explain which type of glass should be used. ...
The Strikingly Uniform, Highly Turbulent Interstellar Medium of the
... we present spatially resolved ALMA [C ii]157.7 µm observations of W2246-0526, providing unique insight into the kinematics of its interstellar medium (ISM). The measured [C ii] -to-far-infrared ratio is ∼ 2 × 10−4 , implying ISM conditions that compare only with the most obscured, compact starbursts ...
... we present spatially resolved ALMA [C ii]157.7 µm observations of W2246-0526, providing unique insight into the kinematics of its interstellar medium (ISM). The measured [C ii] -to-far-infrared ratio is ∼ 2 × 10−4 , implying ISM conditions that compare only with the most obscured, compact starbursts ...
Part2
... o The local star formation rate or IR surface brightness are reasonable ways to guess at the surface brightness of CO on fairly large (~ kpc) scales. We’ve used 12CO as our example, scale to get other lines or use the wellestablished HCN-IR (or an analogous HCO+-IR) relations. ...
... o The local star formation rate or IR surface brightness are reasonable ways to guess at the surface brightness of CO on fairly large (~ kpc) scales. We’ve used 12CO as our example, scale to get other lines or use the wellestablished HCN-IR (or an analogous HCO+-IR) relations. ...
Document
... One of the major goals of ancient geographers was to measure the size and shape of Earth. The appearance of Earth’s shadow on the eclipsing moon proved to most people that Earth was spherical. In the 200s B.C. Greek geographer Eratosthenes used angles of the sun over a specific distance to calculat ...
... One of the major goals of ancient geographers was to measure the size and shape of Earth. The appearance of Earth’s shadow on the eclipsing moon proved to most people that Earth was spherical. In the 200s B.C. Greek geographer Eratosthenes used angles of the sun over a specific distance to calculat ...
A Map of the Universe
... picture, at a scale of 1/108 , shows the entire Earth. The 14th picture, at a scale of 1/1014 , shows the entire Solar system. The 18th picture, at a scale of 1/1018 , includes α Centauri, The 22nd picture, at a scale of 1/1022 shows all of the Milky Way Galaxy. The 26th and last picture in the sequ ...
... picture, at a scale of 1/108 , shows the entire Earth. The 14th picture, at a scale of 1/1014 , shows the entire Solar system. The 18th picture, at a scale of 1/1018 , includes α Centauri, The 22nd picture, at a scale of 1/1022 shows all of the Milky Way Galaxy. The 26th and last picture in the sequ ...
Scale the Universe - Crystal Ball Science
... – One group places their list on the wall by the EM stickers. – Report and record – Each group reviews and edits – Another group edits the 1st group’s order ...
... – One group places their list on the wall by the EM stickers. – Report and record – Each group reviews and edits – Another group edits the 1st group’s order ...
Chapter 10
... 3. Describe the appearance of Jupiter’s surface and explain the belts and zones and the Great Red Spot. 4. Describe the interior of Jupiter and draw a labeled sketch of a cross section through Jupiter. 5. Be able to identify by sight, and to describe the Galilean satellites of Jupiter, including the ...
... 3. Describe the appearance of Jupiter’s surface and explain the belts and zones and the Great Red Spot. 4. Describe the interior of Jupiter and draw a labeled sketch of a cross section through Jupiter. 5. Be able to identify by sight, and to describe the Galilean satellites of Jupiter, including the ...
Prologue - LandSurvival.com
... its kind, and without such a book in existence, it would arguably be much more difficult to reconstruct an accurate picture of what exactly was known in the ancient world and how it was preserved throughout time. The general picture of the time of Atlantis that Hall and other sources paint is of a w ...
... its kind, and without such a book in existence, it would arguably be much more difficult to reconstruct an accurate picture of what exactly was known in the ancient world and how it was preserved throughout time. The general picture of the time of Atlantis that Hall and other sources paint is of a w ...
Chapter 15 Stars, Galaxies, and Universe
... •Irregular – smaller than other galaxies •Young stars, lots of gas and dust •Located close to larger galaxies. ...
... •Irregular – smaller than other galaxies •Young stars, lots of gas and dust •Located close to larger galaxies. ...
Seminar 2
... Paper 1: Abraham, R. G. and van den Bergh, S The morphological evolution of galaxies The main point of this paper is that galaxies have different morphologies at different redshifts. This indicates that they have gone through some sort of evolution in the past. The redshift range discussed in detail ...
... Paper 1: Abraham, R. G. and van den Bergh, S The morphological evolution of galaxies The main point of this paper is that galaxies have different morphologies at different redshifts. This indicates that they have gone through some sort of evolution in the past. The redshift range discussed in detail ...
Introduction to Astronomy and Cosmology
... Astronomy is probably the oldest of all the sciences. It differs from virtually all other science disciplines in that it is not possible to carry out experimental tests in the laboratory. Instead, the astronomer can only observe what he sees in the Universe and see if his observations fit the theori ...
... Astronomy is probably the oldest of all the sciences. It differs from virtually all other science disciplines in that it is not possible to carry out experimental tests in the laboratory. Instead, the astronomer can only observe what he sees in the Universe and see if his observations fit the theori ...
Practical cosmology with the Local Volume galaxies
... Abstract: After recent systematic optical, IR, and HI surveys, the total number of known galaxies within 10 Mpc increased to 575. About half this Local Volume (LV) sample is now imaged with HST, yielding the galaxy distances with accuracy about 8%. For the majority of the LV galaxies we currently ha ...
... Abstract: After recent systematic optical, IR, and HI surveys, the total number of known galaxies within 10 Mpc increased to 575. About half this Local Volume (LV) sample is now imaged with HST, yielding the galaxy distances with accuracy about 8%. For the majority of the LV galaxies we currently ha ...
25 Years of the Hubble Space Telescope - Speaker
... inhabitant is the star Eta Carinae, at far left. Eta Carinae is in the final stages of its brief and eruptive lifespan, as evidenced by two billowing lobes of gas and dust that presage its upcoming explosion as a titanic supernova. The outflow in the Carina region started three million years ago whe ...
... inhabitant is the star Eta Carinae, at far left. Eta Carinae is in the final stages of its brief and eruptive lifespan, as evidenced by two billowing lobes of gas and dust that presage its upcoming explosion as a titanic supernova. The outflow in the Carina region started three million years ago whe ...
My talk on CO at z=0 from Santiago in June, 2011
... BIGIEL+ ’11, LEROY+ IN PREP. compiling many others ...
... BIGIEL+ ’11, LEROY+ IN PREP. compiling many others ...
Probing the Dark Matter Content of Local Group Dwarf Spheroidal
... et al. 2006). Thus, the Galactic halo was not predominantly formed by disrupting galaxies like the present-day dSphs. Nevertheless, the chemical properties of dSphs provide valuable insights into the processes of galaxy formation and evolution on the smallest scales. It is the large apparent mass-to ...
... et al. 2006). Thus, the Galactic halo was not predominantly formed by disrupting galaxies like the present-day dSphs. Nevertheless, the chemical properties of dSphs provide valuable insights into the processes of galaxy formation and evolution on the smallest scales. It is the large apparent mass-to ...
Impact of atmospheric refraction: How deeply can we probe exo
... planet occults the central region of its star, is a purely geometrical effect linked to the angular size of the host star with respect to the planet, and has only been included in a few papers (Garcı́a Muñoz & Mills 2012; Garcı́a Muñoz et al. 2012; Bétrémieux & Kaltenegger 2013; Rodler & López- ...
... planet occults the central region of its star, is a purely geometrical effect linked to the angular size of the host star with respect to the planet, and has only been included in a few papers (Garcı́a Muñoz & Mills 2012; Garcı́a Muñoz et al. 2012; Bétrémieux & Kaltenegger 2013; Rodler & López- ...
Outer space
Outer space, or just space, is the void that exists between celestial bodies, including the Earth. It is not completely empty, but consists of a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium as well as electromagnetic radiation, magnetic fields, neutrinos, dust and cosmic rays. The baseline temperature, as set by the background radiation from the Big Bang, is 2.7 kelvin (K). Plasma with a number density of less than one hydrogen atom per cubic metre and a temperature of millions of kelvin in the space between galaxies accounts for most of the baryonic (ordinary) matter in outer space; local concentrations have condensed into stars and galaxies. In most galaxies, observations provide evidence that 90% of the mass is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces. Data indicates that the majority of the mass-energy in the observable Universe is a poorly understood vacuum energy of space which astronomers label dark energy. Intergalactic space takes up most of the volume of the Universe, but even galaxies and star systems consist almost entirely of empty space.There is no firm boundary where space begins. However the Kármán line, at an altitude of 100 km (62 mi) above sea level, is conventionally used as the start of outer space in space treaties and for aerospace records keeping. The framework for international space law was established by the Outer Space Treaty, which was passed by the United Nations in 1967. This treaty precludes any claims of national sovereignty and permits all states to freely explore outer space. Despite the drafting of UN resolutions for the peaceful uses of outer space, anti-satellite weapons have been tested in Earth orbit.Humans began the physical exploration of space during the 20th century with the advent of high-altitude balloon flights, followed by manned rocket launches. Earth orbit was first achieved by Yuri Gagarin of the Soviet Union in 1961 and unmanned spacecraft have since reached all of the known planets in the Solar System. Due to the high cost of getting into space, manned spaceflight has been limited to low Earth orbit and the Moon.Outer space represents a challenging environment for human exploration because of the dual hazards of vacuum and radiation. Microgravity also has a negative effect on human physiology that causes both muscle atrophy and bone loss. In addition to these health and environmental issues, the economic cost of putting objects, including humans, into space is high.