N-Body/SPH simulations of induced star formation in dwarf galaxies
... First of all, I want to thank professor Sven De Rijcke. Offering the vastly interesting subject and supervising patiently, I always felt inspired after leaving his office. I am also greatful for his effort to hand in an FWO project for me, even when at the time, my thesis was rather unexisting still ...
... First of all, I want to thank professor Sven De Rijcke. Offering the vastly interesting subject and supervising patiently, I always felt inspired after leaving his office. I am also greatful for his effort to hand in an FWO project for me, even when at the time, my thesis was rather unexisting still ...
Untitled - NMSU Astronomy
... from the Earth to the Moon is 384,000,000 meters or 384,000 kilometers (km). The distances found in astronomy are usually so large that we have to switch to a unit of measurement that is much larger than the meter, or even the kilometer. In and around the solar system, astronomers use “Astronomical ...
... from the Earth to the Moon is 384,000,000 meters or 384,000 kilometers (km). The distances found in astronomy are usually so large that we have to switch to a unit of measurement that is much larger than the meter, or even the kilometer. In and around the solar system, astronomers use “Astronomical ...
book_text4
... space astronomy mission ever. The images included in this beautiful volume are quite staggering in what they reveal about the Universe we live in and have already become part of our common scientific and cultural heritage. But what about the science impact? It is no exaggeration to say that the scie ...
... space astronomy mission ever. The images included in this beautiful volume are quite staggering in what they reveal about the Universe we live in and have already become part of our common scientific and cultural heritage. But what about the science impact? It is no exaggeration to say that the scie ...
Lokal fulltext - Chalmers Publication Library
... or a ring (see Figure 1.1). Since such excess first was observed at Vega, it was also called the “Vega phenomenom”. Just a month later the same year, Smith & Terrile (1984) published their observations of β Pictoris. They announced that they had been able to observe optically a circumstellar disc ar ...
... or a ring (see Figure 1.1). Since such excess first was observed at Vega, it was also called the “Vega phenomenom”. Just a month later the same year, Smith & Terrile (1984) published their observations of β Pictoris. They announced that they had been able to observe optically a circumstellar disc ar ...
The Celestial Origin of Atoms
... to the sphere of birth and corruption. They are neither inalterable nor impassive. However, since he referred to this as a new star, or nova, and indeed he was so ...
... to the sphere of birth and corruption. They are neither inalterable nor impassive. However, since he referred to this as a new star, or nova, and indeed he was so ...
SECOND SUN - royal device
... will shake the earth for 8 hours. This will be the third of God's signal to those who govern the Earth. Those close to the Lord and blessed, with no doubt in the Faith, will spread this prophetic message the Holy Mother Mary announced at Fatima, will have no fear. "OH GOD, FORGIVE OUR SINS, save us ...
... will shake the earth for 8 hours. This will be the third of God's signal to those who govern the Earth. Those close to the Lord and blessed, with no doubt in the Faith, will spread this prophetic message the Holy Mother Mary announced at Fatima, will have no fear. "OH GOD, FORGIVE OUR SINS, save us ...
On the nature of sn stars. I. A detailed abundance study
... 10300 - 14500 K. However, there are also sn stars with solar or nearly-solar (i.e., non-CP) chemical composition. We have studied the possible contribution of different processes to the broad He I lines present in the sn stars. Although NLTE effects could not be completely ruled out, it seems that N ...
... 10300 - 14500 K. However, there are also sn stars with solar or nearly-solar (i.e., non-CP) chemical composition. We have studied the possible contribution of different processes to the broad He I lines present in the sn stars. Although NLTE effects could not be completely ruled out, it seems that N ...
Neutron Stars
... with Prof. Antony Hewish at Cambridge. Pulsars derive their name from ”pulsating radio sources” because they were first observed at radio wave frequencies. Hewish won the 1974 Nobel Prize in Physics along with Sir Martin Ryle for their ”pioneering discoveries in radio astrophysics.” Hewish was cited ...
... with Prof. Antony Hewish at Cambridge. Pulsars derive their name from ”pulsating radio sources” because they were first observed at radio wave frequencies. Hewish won the 1974 Nobel Prize in Physics along with Sir Martin Ryle for their ”pioneering discoveries in radio astrophysics.” Hewish was cited ...
Exposing the hidden white dwarf binary origin by means of a
... dwarfs (WDs), including effective temperature and mass distribution. The only two parameters of the synthetic population model are the initial mass function (IMF) and the star-formation rate (SFR). Depletion losses through kinematic heating of the stellar ‘gas’ vertical to the Galactic plane are pre ...
... dwarfs (WDs), including effective temperature and mass distribution. The only two parameters of the synthetic population model are the initial mass function (IMF) and the star-formation rate (SFR). Depletion losses through kinematic heating of the stellar ‘gas’ vertical to the Galactic plane are pre ...
WGCP 5th Jan 16 Astrophotography by Steve Baldwin
... There is a significant list of subjects that fall under the umbrella of astrophotography, not all of them visible after dark: • Lunar images *#% • Starscapes (landscapes taken after dark) and star trails *#% • Milky Way *#% • Planetary conjunctions *#% • ISS and satellites *#% • Meteor showers *# • ...
... There is a significant list of subjects that fall under the umbrella of astrophotography, not all of them visible after dark: • Lunar images *#% • Starscapes (landscapes taken after dark) and star trails *#% • Milky Way *#% • Planetary conjunctions *#% • ISS and satellites *#% • Meteor showers *# • ...
Astrometry of Asteroids
... The techniques you will be using for this lab involve the measurement of precise star positions, a technique called astrometry, which is one of the fundamental tools of astronomers. Astrometry, of course, enables us to make charts of objects in the sky, assigning two numbers or celestial coordinates ...
... The techniques you will be using for this lab involve the measurement of precise star positions, a technique called astrometry, which is one of the fundamental tools of astronomers. Astrometry, of course, enables us to make charts of objects in the sky, assigning two numbers or celestial coordinates ...
Luminosity and Mass Functions of Galaxies
... Blanton, M. R. & Berlind, A. A. 2007, ApJ, 664, 791 Blanton, M. R. & Moustakas, J. 2009, Annu. Rev. Astro. Astrophys., 47, 159 Keel, W. C. 2009, Global Galaxy Properties and Systematics,
O’Neil, K., Bothun, G., van Driel, W., Monnier Ragainge, ...
... Blanton, M. R. & Berlind, A. A. 2007, ApJ, 664, 791 Blanton, M. R. & Moustakas, J. 2009, Annu. Rev. Astro. Astrophys., 47, 159 Keel, W. C. 2009, Global Galaxy Properties and Systematics,
solar twins and solar analogues in galactic surveys
... Solar system. Finally in the late 16th century, Giordano Bruno said that the Sun is a star, like many others, being the first person in the modern age to come to that conclusion, for which he was burnt for heresy. It took another century for inventions like the telescope to help people understand th ...
... Solar system. Finally in the late 16th century, Giordano Bruno said that the Sun is a star, like many others, being the first person in the modern age to come to that conclusion, for which he was burnt for heresy. It took another century for inventions like the telescope to help people understand th ...
Is there a Supermassive Black Hole at the Center of the Milky Way?
... Early evidence for SMBHs closely paralleled the development of radio astronomy. Very strong sources of radio waves were discovered in the early years of radio astronomy. Accurate positions of these sources revealed that they were often centered on distant galaxies. In the 1950s, radio interferometer ...
... Early evidence for SMBHs closely paralleled the development of radio astronomy. Very strong sources of radio waves were discovered in the early years of radio astronomy. Accurate positions of these sources revealed that they were often centered on distant galaxies. In the 1950s, radio interferometer ...
m V
... • Light from a nearby star is scattered by dust grains into the line of sight • Colour is blue, as blue light is the most readily scattered • Scattering of light from blue stars, usually type B; spectrum is also of this type, i.e. absorption lines • Light is often highly polarized (20 – 30 per cent) ...
... • Light from a nearby star is scattered by dust grains into the line of sight • Colour is blue, as blue light is the most readily scattered • Scattering of light from blue stars, usually type B; spectrum is also of this type, i.e. absorption lines • Light is often highly polarized (20 – 30 per cent) ...
Stellar Evolution Nucleosynthesis
... – Asymptotic Giant Branch (AGB stars) – though brief, this phase can dominate the light of ~1 Gyr old populations. • Equilibrium becomes hard to maintain—the fusion rate periodically spikes upward in a series of thermal pulses. (Mira variable stars.) • With each spike, some of the outer layers may b ...
... – Asymptotic Giant Branch (AGB stars) – though brief, this phase can dominate the light of ~1 Gyr old populations. • Equilibrium becomes hard to maintain—the fusion rate periodically spikes upward in a series of thermal pulses. (Mira variable stars.) • With each spike, some of the outer layers may b ...
Stars, Galaxies, Superuniverses and the Urantia Book, by Frederick
... stars in our Milky Way galaxy is estimated to be around 200 to 400 billion. This is pretty good agreement with our average number since our galaxy is the second largest in our local cluster of about 30 galaxies, and thus may be considered to be an exceptionally large galaxy. There are many more smal ...
... stars in our Milky Way galaxy is estimated to be around 200 to 400 billion. This is pretty good agreement with our average number since our galaxy is the second largest in our local cluster of about 30 galaxies, and thus may be considered to be an exceptionally large galaxy. There are many more smal ...
Navigating the Night Sky Checklist
... appears to move steadily eastward along the ecliptic, through the constellations of the zodiac. As Earth orbits the Sun, we see the Sun against the background of different zodiac constellations at different times of year. For example, on August 21 the Sun appears to be in Leo, because it is between ...
... appears to move steadily eastward along the ecliptic, through the constellations of the zodiac. As Earth orbits the Sun, we see the Sun against the background of different zodiac constellations at different times of year. For example, on August 21 the Sun appears to be in Leo, because it is between ...
Answers to Chapter Review Questions and Problems for The
... horizon is clearly defined. Nautical twilight is that period where the center of the Sun is between −6◦ and −12◦ . The sea horizon can no longer be seen and altitude measurements with reference to the horizon for navigation can no longer be made. Astronomical twilight is that period where the Sun is ...
... horizon is clearly defined. Nautical twilight is that period where the center of the Sun is between −6◦ and −12◦ . The sea horizon can no longer be seen and altitude measurements with reference to the horizon for navigation can no longer be made. Astronomical twilight is that period where the Sun is ...
Pyramid of Cheops and its Secret I
... A secret tradition calmly and wisely assures that music was used when building – a phrase which now means more to us that it originally did. We receive some written information in legends inherited by the Arabian people. The most distinct information tells us: “When the king built the pyramids the l ...
... A secret tradition calmly and wisely assures that music was used when building – a phrase which now means more to us that it originally did. We receive some written information in legends inherited by the Arabian people. The most distinct information tells us: “When the king built the pyramids the l ...
Galaxies
... Astronomers therefore prefer to quote redshifts rather than distances The look-back time is the time when light was emitted from a distant object For very distant objects it is less than the redshift would indicate, as the object has receded in the meantime Astronomy 1-2 ...
... Astronomers therefore prefer to quote redshifts rather than distances The look-back time is the time when light was emitted from a distant object For very distant objects it is less than the redshift would indicate, as the object has receded in the meantime Astronomy 1-2 ...
A cold detached dust envelope around an oxygen-rich Mira
... most likely that R Hya really has an extended circumstellar envelope which shows a significant amount of infrared emission at wavelengths longer than λ ∼ 25 µm. This observational fact rules out the first possibility of the intrinsic infrared excess of the stellar photosphere without any effects fro ...
... most likely that R Hya really has an extended circumstellar envelope which shows a significant amount of infrared emission at wavelengths longer than λ ∼ 25 µm. This observational fact rules out the first possibility of the intrinsic infrared excess of the stellar photosphere without any effects fro ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.