Dynamical relaxation and the orbits of low
... exceeding arccos 3=5 , 408. We have also followed the orbital evolution of the system when the orbits are initially mutually inclined at an angle of 608 and the results are also shown in Fig. 1. In this case, large-amplitude cycles with e attaining values up to 0.7 are obtained. This is typical for ...
... exceeding arccos 3=5 , 408. We have also followed the orbital evolution of the system when the orbits are initially mutually inclined at an angle of 608 and the results are also shown in Fig. 1. In this case, large-amplitude cycles with e attaining values up to 0.7 are obtained. This is typical for ...
HD 147506b: A SUPERMASSIVE PLANET IN AN ECCENTRIC
... another joint field (G149) of HATNet (HAT-7 at FLWO) and WHAT, contributing 6200 and 2200 additional data points, respectively. Altogether this resulted in a light curve with exceptional time coverage (570 days), an unprecedented number of data points (26,461 measurements at 5.5 minute cadence), a ...
... another joint field (G149) of HATNet (HAT-7 at FLWO) and WHAT, contributing 6200 and 2200 additional data points, respectively. Altogether this resulted in a light curve with exceptional time coverage (570 days), an unprecedented number of data points (26,461 measurements at 5.5 minute cadence), a ...
9/28/16 Wednesday Parallax Lab
... Now, have your lab partner move the pen twice the original distance to you, to approximately the end of the meter stick. When you alternate opening and closing each eye does the pen appear to move more or less than before? Try to quantify how much more or less (twice as much? half as much? three tim ...
... Now, have your lab partner move the pen twice the original distance to you, to approximately the end of the meter stick. When you alternate opening and closing each eye does the pen appear to move more or less than before? Try to quantify how much more or less (twice as much? half as much? three tim ...
Calculate the Mass of the Milky Way Galaxy
... "cosmic scatter" and is probably due to the fact that the gas clouds that formed the galaxies all had some small additional motion of their own. The recessional velocity of a galaxy at a particular distance inferred from Hubble's law is called the "Hubble velocity". ...
... "cosmic scatter" and is probably due to the fact that the gas clouds that formed the galaxies all had some small additional motion of their own. The recessional velocity of a galaxy at a particular distance inferred from Hubble's law is called the "Hubble velocity". ...
Resource Letter Exo
... stars (including one of probable extragalactic origin). Exoplanets with unexpected properties have proven to be common. These include very closely orbiting ‘hot Jupiters’ (which are considered unlikely to have formed in situ), giant planets several times the mass of Jupiter, orbits highly inclined t ...
... stars (including one of probable extragalactic origin). Exoplanets with unexpected properties have proven to be common. These include very closely orbiting ‘hot Jupiters’ (which are considered unlikely to have formed in situ), giant planets several times the mass of Jupiter, orbits highly inclined t ...
3. Extrasolar Planets
... More pulsar planets? Pulsar planets appear to be rare, since only one other is known to exist, around B1620-26, but in quite different circumstances to B1257+12 The system is in the globular cluster M4, and involves a 1.4Msun neutron star orbited by a 0.34Msun white dwarf (a=0.8AU, e=0.025), and a ...
... More pulsar planets? Pulsar planets appear to be rare, since only one other is known to exist, around B1620-26, but in quite different circumstances to B1257+12 The system is in the globular cluster M4, and involves a 1.4Msun neutron star orbited by a 0.34Msun white dwarf (a=0.8AU, e=0.025), and a ...
THE NEUTRAL GAS DYNAMICS OF THE NEARBY MAGELLANIC
... blanked cube is then carefully examined by hand to identify regions of “real” emission that are present in three or more consecutive channels. This blanked cube is then used as a template to blank the original cube when convolved to the smallest possible circular beam size. Thus, the final data cube ...
... blanked cube is then carefully examined by hand to identify regions of “real” emission that are present in three or more consecutive channels. This blanked cube is then used as a template to blank the original cube when convolved to the smallest possible circular beam size. Thus, the final data cube ...
The Astrophysical Origins of the Short
... • Gas-phase supernova ejecta is mixed into the disk, but with low efficiency (~ 1%), too low to explain SLR ratios • Dust injection is the best candidate for SLR injection and will be the subject of future work – Preliminary calculations show the dust will travel roughly 100 AU before being deviated ...
... • Gas-phase supernova ejecta is mixed into the disk, but with low efficiency (~ 1%), too low to explain SLR ratios • Dust injection is the best candidate for SLR injection and will be the subject of future work – Preliminary calculations show the dust will travel roughly 100 AU before being deviated ...
L7 Protoplanetary disks Part III
... denoted by solid lines. Velocity vectors are plotted at regular intervals. ...
... denoted by solid lines. Velocity vectors are plotted at regular intervals. ...
Signatures of Planets in Protoplanetary and Debris
... its vicinity. We now discuss observable quantities under the assumption that the disk is seen face-on since this orientation allows a direct view on the planetary region. The thermal dust reemission of circumstellar disks can be mapped with (sub) millimeter observations and it has been performed suc ...
... its vicinity. We now discuss observable quantities under the assumption that the disk is seen face-on since this orientation allows a direct view on the planetary region. The thermal dust reemission of circumstellar disks can be mapped with (sub) millimeter observations and it has been performed suc ...
SeagerGUASAII - Sara Seager
... • Light from a very distant, bright source is "bent" around a massive object between the source object and the observer • A product of general relativity ...
... • Light from a very distant, bright source is "bent" around a massive object between the source object and the observer • A product of general relativity ...
ppt - Thüringer Landessternwarte Tautenburg
... Vb10 was purported to be the first astrometric detection of a planet. Prada and Shalkan 2009 claimed to have found a planet using the STEPS: A CCD camera mounted on the Palomar 5m. 9 years of data were obtained. ...
... Vb10 was purported to be the first astrometric detection of a planet. Prada and Shalkan 2009 claimed to have found a planet using the STEPS: A CCD camera mounted on the Palomar 5m. 9 years of data were obtained. ...
The Official Magazine of the University Of St Andrews Astronomical Society 1
... Solar Flares and Planetary Migration The vast majority of exoplanets found have been large gas giants, close to their parent star, with orbital periods of only a few days. Our gas giants, however, are orders of magnitude more distant from the sun than typical exoplanets are from their stars. Why is ...
... Solar Flares and Planetary Migration The vast majority of exoplanets found have been large gas giants, close to their parent star, with orbital periods of only a few days. Our gas giants, however, are orders of magnitude more distant from the sun than typical exoplanets are from their stars. Why is ...
ppt - Thüringer Landessternwarte Tautenburg
... Vb10 was purported to be the first astrometric detection of a planet. Prada and Shalkan 2009 claimed to have found a planet using the STEPS: A CCD camera mounted on the Palomar 5m. 9 years of data were obtained. ...
... Vb10 was purported to be the first astrometric detection of a planet. Prada and Shalkan 2009 claimed to have found a planet using the STEPS: A CCD camera mounted on the Palomar 5m. 9 years of data were obtained. ...
Informal Ed Trappist FAQ
... star, with 1b being the closest to the star and 1c being the next closest. The third planet originally thought to be part of the system turned out to actually be three different planets. Since this was caught early, the new planets were named 1d, 1e, 1f, 1g, and 1h, going from closest to farthest ...
... star, with 1b being the closest to the star and 1c being the next closest. The third planet originally thought to be part of the system turned out to actually be three different planets. Since this was caught early, the new planets were named 1d, 1e, 1f, 1g, and 1h, going from closest to farthest ...
Article PDF - IOPscience
... Neptune and other hypothetical massive planetary embryos or of its temporary capture in a resonance with one of the other planets, although these scenarios have never been quantitatively simulated. In this section we investigate the effects that an eccentric Neptune would have on the formation of th ...
... Neptune and other hypothetical massive planetary embryos or of its temporary capture in a resonance with one of the other planets, although these scenarios have never been quantitatively simulated. In this section we investigate the effects that an eccentric Neptune would have on the formation of th ...
9. Formation of the Solar System
... • We must find rocks which have not melted or vaporized since they condensed from the Solar nebula. – meteorites imply an age of 4.6 billion years for Solar System ...
... • We must find rocks which have not melted or vaporized since they condensed from the Solar nebula. – meteorites imply an age of 4.6 billion years for Solar System ...
Giant Planet Formation
... • Planets smaller than Neptune are far more common than giants – Abundance of planets increases as size decreases at least down to 1.5 REarth ...
... • Planets smaller than Neptune are far more common than giants – Abundance of planets increases as size decreases at least down to 1.5 REarth ...
Document
... Astrometry - the branch of astronomy that deals with the measurement of the position and motion of celestial bodies • It is one of the oldest subfields of the astronomy dating back at least to Hipparchus (130 B.C.), who combined the arithmetical astronomy of the Babylonians with the geometrical appr ...
... Astrometry - the branch of astronomy that deals with the measurement of the position and motion of celestial bodies • It is one of the oldest subfields of the astronomy dating back at least to Hipparchus (130 B.C.), who combined the arithmetical astronomy of the Babylonians with the geometrical appr ...
ppt
... Summary of Exoplanet Properties from RV Studies • ~5% of normal solar-type stars have giant planets • ~10% or more of stars with masses ~1.5 M סּhave giant planets that tend to be more massive (more on this later in the course) • < 1% of the M dwarfs stars (low mass) have giant planets, but may ha ...
... Summary of Exoplanet Properties from RV Studies • ~5% of normal solar-type stars have giant planets • ~10% or more of stars with masses ~1.5 M סּhave giant planets that tend to be more massive (more on this later in the course) • < 1% of the M dwarfs stars (low mass) have giant planets, but may ha ...
ph709-14
... Currently the most important class of exoplanets are those that transit the disk of their parent stars, allowing for a determination of planetary radii. SELECTION: Of course, while planets close to their parent stars will preferentially be found, due to their shorter orbital periods and greater like ...
... Currently the most important class of exoplanets are those that transit the disk of their parent stars, allowing for a determination of planetary radii. SELECTION: Of course, while planets close to their parent stars will preferentially be found, due to their shorter orbital periods and greater like ...
First Visible-Light Image of an Extrasolar Planet
... First Visible-Light Image of an Extrasolar Planet When the Hubble Space Telescope was launched in 1990, one of its most ambitious goals was to take a snapshot of a planet orbiting another star. Astronomers have now achieved that dream, capturing the first visible-light image of an extrasolar planet ...
... First Visible-Light Image of an Extrasolar Planet When the Hubble Space Telescope was launched in 1990, one of its most ambitious goals was to take a snapshot of a planet orbiting another star. Astronomers have now achieved that dream, capturing the first visible-light image of an extrasolar planet ...
No Slide Title
... 3677 Life in the Universe: Extra-solar planets Dr. Matt Burleigh www.star.le.ac.uk/mrb1/lectures.html ...
... 3677 Life in the Universe: Extra-solar planets Dr. Matt Burleigh www.star.le.ac.uk/mrb1/lectures.html ...
Millisecond Pulsar Binaries at Transition
... from light curve analysis a neutron star primary was more likely (Thorstensen & Armstrong 2005) An MSP, P=1.69 ms, was discovered in an untargeted pulsar survey (Archibald et al. 2009 Science) The first system found at the end of its way from a LMXB to a MSP ...
... from light curve analysis a neutron star primary was more likely (Thorstensen & Armstrong 2005) An MSP, P=1.69 ms, was discovered in an untargeted pulsar survey (Archibald et al. 2009 Science) The first system found at the end of its way from a LMXB to a MSP ...
Beta Pictoris
Beta Pictoris (β Pic, β Pictoris) is the second brightest star in the constellation Pictor. It is located 63.4 light years from our solar system, and is 1.75 times as massive and 8.7 times as luminous as the Sun. The Beta Pictoris system is very young, only 8–20 million years old, although it is already in the main sequence stage of its evolution. Beta Pictoris is the title member of the Beta Pictoris moving group, an association of young stars which share the same motion through space and have the same age.Beta Pictoris shows an excess of infrared emission compared to normal stars of its type, which is caused by large quantities of dust and gas (including carbon monoxide) near the star. Detailed observations reveal a large disk of dust and gas orbiting the star, which was the first debris disk to be imaged around another star. In addition to the presence of several planetesimal belts and cometary activity, there are indications that planets have formed within this disk and that the processes of planet formation may still be ongoing. Material from the Beta Pictoris debris disk is thought to be the dominant source of interstellar meteoroids in our solar system.The European Southern Observatory (ESO) has confirmed the presence of a planet, Beta Pictoris b, matching previous predictions, through the use of direct imagery, orbiting in the plane of the debris disk surrounding the star. This planet is currently the closest extrasolar planet to its star ever photographed: the observed separation is roughly the same as the distance between Saturn and the Sun.