MP Ch10 Sols
... solid matter. Suppose we represent the... Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star. The density of a neutron star is roughly 10 14 times as great as that of ordinary solid matter. Suppose we represent the star as ...
... solid matter. Suppose we represent the... Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star. The density of a neutron star is roughly 10 14 times as great as that of ordinary solid matter. Suppose we represent the star as ...
Rotation Periods of Wide Binaries in the Kepler Field
... stars. Either star formation in this direction has been variable, or stars evolve in period at a non-uniform rate, or some stars evolve more rapidly than others at the same mass. Finally, using the autocorrelation function as a measure of the activity level, I found that while the F, G and early K s ...
... stars. Either star formation in this direction has been variable, or stars evolve in period at a non-uniform rate, or some stars evolve more rapidly than others at the same mass. Finally, using the autocorrelation function as a measure of the activity level, I found that while the F, G and early K s ...
Part2
... For the next few slides we’ll look at other the intensity of other galaxies as observed with the 30m. We’ll do this in three ways: o In terms of individual molecular clouds … o In terms of integrated molecular mass (luminosity) … o In terms of surface density … We’ll focus on the 12CO J=1-0 transiti ...
... For the next few slides we’ll look at other the intensity of other galaxies as observed with the 30m. We’ll do this in three ways: o In terms of individual molecular clouds … o In terms of integrated molecular mass (luminosity) … o In terms of surface density … We’ll focus on the 12CO J=1-0 transiti ...
Planet formation
... Snow line: 2.7 AU from the Sun, temperatures are low enough that molecules appear in the form of icy grains, and dust grains have sufficiently low temperatures to capture ice molecules in their mantles. The Snow line is crucial for the planet formation process, as ice-covered grains are suggested to ...
... Snow line: 2.7 AU from the Sun, temperatures are low enough that molecules appear in the form of icy grains, and dust grains have sufficiently low temperatures to capture ice molecules in their mantles. The Snow line is crucial for the planet formation process, as ice-covered grains are suggested to ...
Populations of Galaxies and their Formation at z < 7
... What could these galaxies be, and are they most of the galaxy population at high redshift? No. ...
... What could these galaxies be, and are they most of the galaxy population at high redshift? No. ...
In Class Activity Manual - Department of Physics and Astronomy
... Procedure: Examine the two photographs (Figures 1 and 2) of a jet airliner, which is so far away that the airplane is not visible, only its contrail. The photos were taken 20 seconds apart with a telephoto lens on a 35 mm camera. The images are enlarged so that 1° = 20 mm on the prints. 1. What is t ...
... Procedure: Examine the two photographs (Figures 1 and 2) of a jet airliner, which is so far away that the airplane is not visible, only its contrail. The photos were taken 20 seconds apart with a telephoto lens on a 35 mm camera. The images are enlarged so that 1° = 20 mm on the prints. 1. What is t ...
TWO NEW LONG-PERIOD GIANT PLANETS FROM THE
... Key words: planetary systems – stars: activity – techniques: radial velocities Supporting material: machine-readable tables The RV technique has been used to detect/discover ∼600 of the ∼2000 known, confirmed exoplanets. Since the technique is heavily biased toward massive planets in short-period orb ...
... Key words: planetary systems – stars: activity – techniques: radial velocities Supporting material: machine-readable tables The RV technique has been used to detect/discover ∼600 of the ∼2000 known, confirmed exoplanets. Since the technique is heavily biased toward massive planets in short-period orb ...
Star formation rates and efficiencies in the Galactic Centre
... The measured column density of hydrogen in the CMZ appears to be at least an order of magnitude higher than clouds within the disc (> 1022 cm−2 ; Rathborne et al. 2014b; Battersby et al. in prep), implying an average gas volume density above ∼ 104 cm−3 . However, if the gas is more extended along th ...
... The measured column density of hydrogen in the CMZ appears to be at least an order of magnitude higher than clouds within the disc (> 1022 cm−2 ; Rathborne et al. 2014b; Battersby et al. in prep), implying an average gas volume density above ∼ 104 cm−3 . However, if the gas is more extended along th ...
AAVSO: Epsilon Aurigae
... Now is an exciting time to familiarize yourself with this fascinating star, as we countdown to a rare eclipse starting in mid-2009. Although epsilon Aurigae has been a known binary for over a century, it isn't yet known what exactly is eclipsing what! The curious light curves of the eclipses have be ...
... Now is an exciting time to familiarize yourself with this fascinating star, as we countdown to a rare eclipse starting in mid-2009. Although epsilon Aurigae has been a known binary for over a century, it isn't yet known what exactly is eclipsing what! The curious light curves of the eclipses have be ...
Constraining the star formation histories of spiral bulges
... Stellar populations in spiral bulges are investigated using the Lick system of spectral indices. Long-slit spectroscopic observations of line strengths and kinematics made along the minor axes of four spiral bulges are reported. Comparisons are made between central line strengths in spiral bulges an ...
... Stellar populations in spiral bulges are investigated using the Lick system of spectral indices. Long-slit spectroscopic observations of line strengths and kinematics made along the minor axes of four spiral bulges are reported. Comparisons are made between central line strengths in spiral bulges an ...
A Practical Guide to Exoplanet Observing
... Links to the latest version of this guide and accompanying material can be found at http://astrodennis.com. Links to the latest version of AIJ, its user guide, and its user forum can be found at AIJ’s website: http://www.astro.louisville.edu/software/astroimagej/. II. Background In 1995, 51 Pegasi b ...
... Links to the latest version of this guide and accompanying material can be found at http://astrodennis.com. Links to the latest version of AIJ, its user guide, and its user forum can be found at AIJ’s website: http://www.astro.louisville.edu/software/astroimagej/. II. Background In 1995, 51 Pegasi b ...
offprint
... For ω CMa this grid covered three polar effective temperatures (18, 20, and 22 kK), three masses (8, 9, and 10 M ), five polar radii (4.5, 5, 5.5, 6, and 6.5 R ), and five rotational velocities (200, 250, 300, 350, and 400 km s−1 ) at five projected values (v sin i = 85, 90, 95, 100, and 105 km s−1 ...
... For ω CMa this grid covered three polar effective temperatures (18, 20, and 22 kK), three masses (8, 9, and 10 M ), five polar radii (4.5, 5, 5.5, 6, and 6.5 R ), and five rotational velocities (200, 250, 300, 350, and 400 km s−1 ) at five projected values (v sin i = 85, 90, 95, 100, and 105 km s−1 ...
Dynamics of small bodies in planetary systems
... comets are confined to relatively narrow rings known as the asteroid belt and the Kuiper belt (see chapters by Nakamura and Jewitt). These belts are the source of the majority of the smaller objects seen in the solar system, since such objects are inevitably created in collisions between objects wit ...
... comets are confined to relatively narrow rings known as the asteroid belt and the Kuiper belt (see chapters by Nakamura and Jewitt). These belts are the source of the majority of the smaller objects seen in the solar system, since such objects are inevitably created in collisions between objects wit ...
Masses of Dwarf Satellites of the Milky Way
... Q, for 526 subhaloes in the main halo of the Aq-A-1 simulation. haloes considered contain between 20 000 and nearly ∼10 million . The lines in different colours show averages in logarithmic mass each of the three profiles. ...
... Q, for 526 subhaloes in the main halo of the Aq-A-1 simulation. haloes considered contain between 20 000 and nearly ∼10 million . The lines in different colours show averages in logarithmic mass each of the three profiles. ...
A Digital Spectral Classification Atlas
... Figure 8: A selection of Be stars compared with a B2 V secondary standard, HD 145482. The spectral types are on the Lesh (1968) system. Spectra from the Paranal Observatory spectral library. The Be stars are B-type stars that are characterized (or have been characterized in the past) by emission in ...
... Figure 8: A selection of Be stars compared with a B2 V secondary standard, HD 145482. The spectral types are on the Lesh (1968) system. Spectra from the Paranal Observatory spectral library. The Be stars are B-type stars that are characterized (or have been characterized in the past) by emission in ...
Lecture26_Future
... Fermi’s Paradox: “Where is everybody?” Maybe these civilizations have tried to contact us, but we don’t recognize the signs? Maybe it’s harder to get a message across space than we think? Maybe we aren’t looking in the right places, or at the right things? Maybe the creatures are too alien to be ab ...
... Fermi’s Paradox: “Where is everybody?” Maybe these civilizations have tried to contact us, but we don’t recognize the signs? Maybe it’s harder to get a message across space than we think? Maybe we aren’t looking in the right places, or at the right things? Maybe the creatures are too alien to be ab ...
Chapter 11 Gravity ∑
... distant object approaching the Sun, and were able to determine both its distance from the Sun and its speed. How would you be able to predict whether the object will remain ″bound″ to the Solar System, or if it is an interstellar interloper and would come in, turn around and escape, never to return? ...
... distant object approaching the Sun, and were able to determine both its distance from the Sun and its speed. How would you be able to predict whether the object will remain ″bound″ to the Solar System, or if it is an interstellar interloper and would come in, turn around and escape, never to return? ...
SECOND SUN - royal device
... We thank the amateur astronomers round the world for their effort We show what we have and try to see what’s there MAYBE WE ARE RIGHT, but maybe more than right, only God knows THE UNIVERSE DOESN’T STAND UP AS A MATTER OF CASE REMEMBER on the red IT WILL SHOW PROVIDE YOUR CAMERA WITH INFRARED FILTE ...
... We thank the amateur astronomers round the world for their effort We show what we have and try to see what’s there MAYBE WE ARE RIGHT, but maybe more than right, only God knows THE UNIVERSE DOESN’T STAND UP AS A MATTER OF CASE REMEMBER on the red IT WILL SHOW PROVIDE YOUR CAMERA WITH INFRARED FILTE ...
Debris disks and the search for life in the universe Gianni Cataldi
... be the building blocks of planets. By definition, planetesimals are bodies massive enough that their orbital evolution is determined by mutual gravitational interactions, in contrast to smaller dust particles for which aerodynamic interactions with the gas are more important (Armitage 2009). Thus, p ...
... be the building blocks of planets. By definition, planetesimals are bodies massive enough that their orbital evolution is determined by mutual gravitational interactions, in contrast to smaller dust particles for which aerodynamic interactions with the gas are more important (Armitage 2009). Thus, p ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.