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astronomy & astrophysics (15) 15
protoplanetary disks (13) 13
physics - earth and planetary astrophysics (12) 12
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astrophysics - earth and planetary astrophysics (11) 11
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ASTROPHYSICAL JOURNAL, ISSN 0004-637X, 11/2019, Volume 885, Issue 2, p. 118
Protoplanetary disks are dynamic objects, within which dust grains and gas are expected to be redistributed over large distances. Evidence for this... 
WIND | COMETS | PARTICLES | circumstellar matter | ASTRONOMY & ASTROPHYSICS | SOLAR NEBULA | COAGULATION | BODIES | protoplanetary disks | methods: numerical | FRAGMENTATION | Physics - Earth and Planetary Astrophysics
Journal Article
Astrophysical Journal, ISSN 0004-637X, 05/2016, Volume 822, Issue 2, pp. 111 - 111
In protoplanetary disks, the distribution and abundance of small (sub) micron grains are important for a range of physical and chemical processes. For example,... 
methods: numerical | circumstellar matter | protoplanetary disks | PARTICLES | TW HYDRAE | FRAGMENTATION | EVOLUTION | ASTRONOMY & ASTROPHYSICS | GAS | GROWTH PEBBLES | COAGULATION | NEBULA | TURBULENCE | Trapping | Dust | Grains | Planet formation | Collisions | Settling | Diffusion | Fragmentation | Physics - Earth and Planetary Astrophysics
Journal Article
Astrophysical Journal, ISSN 0004-637X, 12/2016, Volume 833, Issue 2, p. 285
The processes that govern the evolution of dust and water (in the form of vapor or ice) in protoplanetary disks are intimately connected. We have developed a... 
protoplanetary disks | methods: numerical | astrochemistry | circumstellar matter | YOUNG OBJECTS | PARTICLES | ACCRETION DISKS | COLLISIONS | PLANETESIMALS | SNOW-LINE | ASTRONOMY & ASTROPHYSICS | GAS | COAGULATION | CIRCUMSTELLAR DISKS | Physics - Earth and Planetary Astrophysics
Journal Article
Astrophysical Journal, ISSN 0004-637X, 09/2018, Volume 864, Issue 1, p. 78
Current models of (exo) planet formation often rely on a large influx of so-called "pebbles" from the outer disk into the planet formation region. In this... 
Astrochemistry | protoplanetary disks | circumstellar matter | methods: Numerical | VOLATILE DEPLETION | PARTICLES | APPEARANCE | methods: numerical | FRAGMENTATION | COLLISIONS | EVOLUTION | ASTRONOMY & ASTROPHYSICS | DUST COAGULATION | SOLAR NEBULA | CIRCUMSTELLAR DISKS | astrochemistry | VELOCITIES | Physics - Earth and Planetary Astrophysics
Journal Article
ASTROPHYSICAL JOURNAL, ISSN 0004-637X, 09/2019, Volume 882, Issue 1, p. 33
There is evidence that protoplanetary disks including the protosolar one-contain crystalline dust grains on spatial scales where the dust temperature is lower... 
TAURI | ISM: jets and outflows | INNER DISK | stars: protostars | PARTICLES | FU ORIONIS | SILICATE DUST | HIGH-TEMPERATURE MATERIALS | ACCRETION DISKS | GRAIN-GROWTH | DISTRIBUTIONS | EVOLUTION | circumstellar matter | ASTRONOMY & ASTROPHYSICS | protoplanetary disks | ISM: magnetic fields
Journal Article
ASTROPHYSICAL JOURNAL, ISSN 0004-637X, 09/2019, Volume 883, Issue 1, p. 98
CO is the most widely used gas tracer of protoplanetary disks. Its abundance is usually assumed to be an interstellar ratio throughout the warm molecular layer... 
DUST | EVOLUTION | molecular data | circumstellar matter | ASTRONOMY & ASTROPHYSICS | ACCRETION | protoplanetary disks | astrochemistry
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 12/2013, Volume 560, pp. A45 - np
Journal Article
Astrophysical Journal, ISSN 0004-637X, 11/2018, Volume 867, Issue 2, p. 146
Amorphous ice has long been invoked as a means for trapping extreme volatiles into solids, explaining the abundances of these species in comets and planetary... 
planets and satellites: atmospheres | ISM: general | protoplanetary disks | comets: general | astrochemistry | AMORPHOUS WATER-ICE | COMETS | DESORPTION | GRAINS | TEMPERATURE | ASTRONOMY & ASTROPHYSICS | CLATHRATE HYDRATE | CONDENSATION | SOLAR-SYSTEM | SURFACES | Physics - Earth and Planetary Astrophysics
Journal Article
Astrophysical Journal, ISSN 0004-637X, 01/2018, Volume 853, Issue 1, p. 74
In a protoplanetary disk, dust aggregates in the mu m to mm size range possess mean collision velocities of 10-60 m s(-1) with respect to dm- to m-sized... 
methods: numerical | methods: laboratory | protoplanetary disks | GRAINS | DISKS | ASTRONOMY & ASTROPHYSICS | PLANETESIMAL FORMATION | COAGULATION | BODIES | FRAGMENTATION | IMPACTS
Journal Article
Astronomy and Astrophysics, ISSN 0004-6361, 02/2016, Volume 586, p. A20
Context. The journey from dust particle to planetesimal involves physical processes acting on scales ranging from micrometers (the sticking and restructuring... 
protoplanetary disks | methods: numerical | planets and satellites: formation | circumstellar matter | PARTICLES | GIANT PLANETS | FRAGMENTATION | EVOLUTION | ASTRONOMY & ASTROPHYSICS | GAS | COAGULATION | BODIES | NUMERICAL-SIMULATION | DUST GROWTH PEBBLES | Construction | Dust | Protoplanets | Planet formation | Coagulation | Evolution | Mathematical models | Formations
Journal Article
Astrophysical Journal Letters, ISSN 2041-8205, 04/2017, Volume 839, Issue 2, pp. L21 - L21
With several short-period, Earth-mass planets in the habitable zone (HZ), the TRAPPIST-1 system potentially allows litho-panspermia to take place on very short... 
methods: numerical | meteorites, meteors, meteoroids | astrobiology | PLANETS | IMPACT | FRAGMENTS | EJECTION | ASTRONOMY & ASTROPHYSICS | EXCHANGE | LIFE | Ejecta | Planets | Simulation | Efficiency | Extrasolar planets | Time | Transport | Ejection | Physics - Earth and Planetary Astrophysics
Journal Article
Journal Article
08/2019
CO is the most widely used gas tracer of protoplanetary disks. Its abundance is usually assumed to be an interstellar ratio throughout the warm molecular layer... 
Journal Article
12/2017
In a protoplanetary disk, dust aggregates in the $\mu$m to mm size range possess mean collision velocities of 10 to 60 ms$^{-1}$ with respect to dm- to m-size... 
Physics - Earth and Planetary Astrophysics
Journal Article
03/2012
The central collision between two solid spheres or the normal collision between a sphere and a plate are important to understand in detail before studying more... 
Journal Article
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