Full Program with Abstracts - CIERA
... Various investigations of exoplanet occurrence indicate that shortperiod planets are common around M dwarf stars. However, not all M dwarfs are equal, with mid-to-late type M dwarfs being significantly smaller, fully convective, and showing different activity phenomena when compared to early-type M ...
... Various investigations of exoplanet occurrence indicate that shortperiod planets are common around M dwarf stars. However, not all M dwarfs are equal, with mid-to-late type M dwarfs being significantly smaller, fully convective, and showing different activity phenomena when compared to early-type M ...
Circumstellar dust emission from nearby Solar
... flux increases which clears its surroundings from most of the gas and dust, and only planets of different sizes and rings of planetesimals remain. These rings of planetesimals are important for the circumstellar dust that are discussed in this thesis. Gravitational influences from surrounding planet ...
... flux increases which clears its surroundings from most of the gas and dust, and only planets of different sizes and rings of planetesimals remain. These rings of planetesimals are important for the circumstellar dust that are discussed in this thesis. Gravitational influences from surrounding planet ...
docx file
... Explanation: In 1996, an unexpectedly bright comet passed by planet Earth. Discovered less than two months before, Comet C/1996 B2 Hyakutake came within only 1/10th of the Earth-Sun distance from the Earth in late March. At that time, Comet Hyakutake, dubbed the Great Comet of 1996, became the brigh ...
... Explanation: In 1996, an unexpectedly bright comet passed by planet Earth. Discovered less than two months before, Comet C/1996 B2 Hyakutake came within only 1/10th of the Earth-Sun distance from the Earth in late March. At that time, Comet Hyakutake, dubbed the Great Comet of 1996, became the brigh ...
Volatiles in protoplanetary disks
... of the current day solar system were set during the nebular/protoplanetary disk phase, and are indeed preserved to this day, although somewhat obscured by dynamical mixing processes during the later debris disk phase. Most of the mass in protoplanetary disks is in the form of molecular hydrogen and ...
... of the current day solar system were set during the nebular/protoplanetary disk phase, and are indeed preserved to this day, although somewhat obscured by dynamical mixing processes during the later debris disk phase. Most of the mass in protoplanetary disks is in the form of molecular hydrogen and ...
Volatiles in protoplanetary disks
... of the current day solar system were set during the nebular/protoplanetary disk phase, and are indeed preserved to this day, although somewhat obscured by dynamical mixing processes during the later debris disk phase. Most of the mass in protoplanetary disks is in the form of molecular hydrogen and ...
... of the current day solar system were set during the nebular/protoplanetary disk phase, and are indeed preserved to this day, although somewhat obscured by dynamical mixing processes during the later debris disk phase. Most of the mass in protoplanetary disks is in the form of molecular hydrogen and ...
The Origin of Comets - Wesley Grove Chapel
... settle toward the swarm’s center of mass. How gently? More softly than large snowflakes settling onto a windless, snowcovered field. More softly, because the swarm’s gravity is much weaker than Earth’s gravity. Eventually, most particles in this swarm would become a rotating clump of fluffy ice part ...
... settle toward the swarm’s center of mass. How gently? More softly than large snowflakes settling onto a windless, snowcovered field. More softly, because the swarm’s gravity is much weaker than Earth’s gravity. Eventually, most particles in this swarm would become a rotating clump of fluffy ice part ...
Physical Properties of the Gas and Dust in the Orion B Molecular
... Their masses are, in general, much higher than the masses of the stars they form and their mass spectrum (LBS; Tatematsu et al. 1993) differs significantly from that of the stellar initial mass function (IMF) (see discussion in Zinnecker 1990). What else are then the actual birthplaces of stars in a ...
... Their masses are, in general, much higher than the masses of the stars they form and their mass spectrum (LBS; Tatematsu et al. 1993) differs significantly from that of the stellar initial mass function (IMF) (see discussion in Zinnecker 1990). What else are then the actual birthplaces of stars in a ...
Discovery of a Dusty Ring in the Coalsack - Harvard
... everywhere precisely balances the inward push of self-gravity and external surface pressure. The fluid equation that describes such a self-gravitating, isothermal sphere in hydrostatic equilibrium is the following well known variant of the Lane-Emden equation: ...
... everywhere precisely balances the inward push of self-gravity and external surface pressure. The fluid equation that describes such a self-gravitating, isothermal sphere in hydrostatic equilibrium is the following well known variant of the Lane-Emden equation: ...
Migrating Dust Particles
... size they drifted towards the Sun. This material was later accreted to planetesimals which are held together by self-gravity. As the planetesimals extend their gravitational range they have a run-away growth towards becoming planets. In this step the planetesimals grow more the larger they get. This ...
... size they drifted towards the Sun. This material was later accreted to planetesimals which are held together by self-gravity. As the planetesimals extend their gravitational range they have a run-away growth towards becoming planets. In this step the planetesimals grow more the larger they get. This ...
Worlds Beyond: A Strategy for the Detection and Characterization of
... so bright sun-like stars in the mid-term is space-based astrometry, and this is one cornerstone of the Task Force recommendations. To study the planet atmosphere for signs of habitability or life, direct imaging is required, and the Task Force Report recommends investment in direct imaging technolog ...
... so bright sun-like stars in the mid-term is space-based astrometry, and this is one cornerstone of the Task Force recommendations. To study the planet atmosphere for signs of habitability or life, direct imaging is required, and the Task Force Report recommends investment in direct imaging technolog ...
The Dynamical Evolution of the Asteroid Belt
... influence their dynamics are those associated with the orbits of Jupiter and Saturn. These are called g5 and g6 for the longitude of perihelion precession (the former dominating in the precession of the perihelion of Jupiter, the latter in that of Saturn), and s6 for the longitude of the node preces ...
... influence their dynamics are those associated with the orbits of Jupiter and Saturn. These are called g5 and g6 for the longitude of perihelion precession (the former dominating in the precession of the perihelion of Jupiter, the latter in that of Saturn), and s6 for the longitude of the node preces ...
The formation and destruction of molecular clouds and galactic star
... to molecular gas in the wall of Galactic supershells. In the case of LMC, Dawson et al. (2013) conclude that only ∼12–25% of the molecular mass can apparently be attributed to the formation due to presently visible shell activity. This may be consistent with our scenario since Dawson et al. (2013) o ...
... to molecular gas in the wall of Galactic supershells. In the case of LMC, Dawson et al. (2013) conclude that only ∼12–25% of the molecular mass can apparently be attributed to the formation due to presently visible shell activity. This may be consistent with our scenario since Dawson et al. (2013) o ...
The Origin and Evolution of Dust in Galaxies
... Bridging local group galaxies to high-z galaxies ...
... Bridging local group galaxies to high-z galaxies ...
Planet Formation: Disk Formation and Evolution
... The increase in density during the collapse, however, causes the optical depth to increase and eventually makes the cloud opaque to infrared, trapping the thermal energy. This is called the adiabatic collapse phase, when energy is not radiated away and the temperature increases as the core collapses ...
... The increase in density during the collapse, however, causes the optical depth to increase and eventually makes the cloud opaque to infrared, trapping the thermal energy. This is called the adiabatic collapse phase, when energy is not radiated away and the temperature increases as the core collapses ...
Formation of the Solar System
... The solar system formed about 4.5 billion years ago from the collapse of an interstellar gas cloud (the solar nebula). The planets formed by coagulation of smaller particles (planetesimals). Planets all line in the same orbital plane, all orbit in the same direction, and mostly spin in the same dire ...
... The solar system formed about 4.5 billion years ago from the collapse of an interstellar gas cloud (the solar nebula). The planets formed by coagulation of smaller particles (planetesimals). Planets all line in the same orbital plane, all orbit in the same direction, and mostly spin in the same dire ...
Debris Disks: Seeing Dust, Thinking of Planetesimals and Planets
... An inventory of our own planetary system uncovers its complex architecture. Eight known planets are arranged in two groups, four terrestrial ones and four giants. The main asteroid belt between two groups of planets, terrestrial and giant ones, comprises planetesimals that failed to grow to planets ...
... An inventory of our own planetary system uncovers its complex architecture. Eight known planets are arranged in two groups, four terrestrial ones and four giants. The main asteroid belt between two groups of planets, terrestrial and giant ones, comprises planetesimals that failed to grow to planets ...
Article PDF - IOPscience
... Ottawa show that radar meteoroids detected by those systems also ablate at heights near 95 km (McKinley 1961), despite the fact that they have line densities q 1014 cm1, 6 orders of magnitude larger than the Arecibo or AMOR meteoroids traveling at the same velocity. These larger meteoroids are st ...
... Ottawa show that radar meteoroids detected by those systems also ablate at heights near 95 km (McKinley 1961), despite the fact that they have line densities q 1014 cm1, 6 orders of magnitude larger than the Arecibo or AMOR meteoroids traveling at the same velocity. These larger meteoroids are st ...
Former PARI students shine at AAS PARI Calendar
... they swing far out in the solar system, spend a long time in the cold, dark depths of space, and then, under the influence of the gravity of the sun, periodically fall into the inner solar system to quickly whip around the sun and once again disappear into the depths of space. Some come back in a s ...
... they swing far out in the solar system, spend a long time in the cold, dark depths of space, and then, under the influence of the gravity of the sun, periodically fall into the inner solar system to quickly whip around the sun and once again disappear into the depths of space. Some come back in a s ...
M sin i
... 1. The high metallicities are primordial, and favor the formation of planets simply because there is more heavy material for them. 2. The high metallicities are primordial and make it more probable that the planets migrate, making them easier to detect. 3. The high metallicities are a result of poll ...
... 1. The high metallicities are primordial, and favor the formation of planets simply because there is more heavy material for them. 2. The high metallicities are primordial and make it more probable that the planets migrate, making them easier to detect. 3. The high metallicities are a result of poll ...
Dirty Snowballs - Amazon Web Services
... predicted. Sightings that were once believed to be different comets, turned out to be sightings of returning comets. Edmund Halley was, at first, surprised to see significant similarities in comets seen in 1531, 1607, and 1682. Careful study helped him realize those were sightings of the same comet ...
... predicted. Sightings that were once believed to be different comets, turned out to be sightings of returning comets. Edmund Halley was, at first, surprised to see significant similarities in comets seen in 1531, 1607, and 1682. Careful study helped him realize those were sightings of the same comet ...
Extrasolar Kuiper Belt Dust Disks
... (Backman and Paresce, 1993). Because all the above timescales are generally much shorter than the age of the disk, it is inferred that the observed dust is not primordial but is likely produced by a reservoir of undetected kilometersized planetesimals producing dust by mutual collisions or by evapor ...
... (Backman and Paresce, 1993). Because all the above timescales are generally much shorter than the age of the disk, it is inferred that the observed dust is not primordial but is likely produced by a reservoir of undetected kilometersized planetesimals producing dust by mutual collisions or by evapor ...
Dynamical evolution of planetary systems
... The apparent regularity of the motion of the giant planets of our solar system suggested for decades that said planets formed onto orbits similar to the current ones and that nothing dramatic ever happened during their lifetime. The discovery of extra-solar planets showed astonishingly that the orbi ...
... The apparent regularity of the motion of the giant planets of our solar system suggested for decades that said planets formed onto orbits similar to the current ones and that nothing dramatic ever happened during their lifetime. The discovery of extra-solar planets showed astonishingly that the orbi ...
comets
... that a bright comet which appeared in 1682, could be on the same elliptical orbit as that followed by comets in 1378, 1465, 1531 and 1607 [1]. Although that orbital periods were not the same, it was discovered that comet changed its orbit slightly when (and only when) it passed close to one of the g ...
... that a bright comet which appeared in 1682, could be on the same elliptical orbit as that followed by comets in 1378, 1465, 1531 and 1607 [1]. Although that orbital periods were not the same, it was discovered that comet changed its orbit slightly when (and only when) it passed close to one of the g ...
disappearance of comet c/2010 x1 (elenin): gone with a whimper
... maximum on UT 2011 August 30 ± 1 (at 0.56 AU), and reflects the true breakup of the nucleus. This second peak was matched by a change in the morphology from centrally condensed to diffuse. The estimated cross section of the nucleus when at 1 AU inbound was ∼1 km2, corresponding to an equal-area circl ...
... maximum on UT 2011 August 30 ± 1 (at 0.56 AU), and reflects the true breakup of the nucleus. This second peak was matched by a change in the morphology from centrally condensed to diffuse. The estimated cross section of the nucleus when at 1 AU inbound was ∼1 km2, corresponding to an equal-area circl ...