32 Photoevaporation PPTs View free & download

Can PhotoEvaporation Trigger Planetesimal Formation PowerPoint PPT Presentation

Can PhotoEvaporation Trigger Planetesimal Formation - OB associations like Orion are rare but large majority of star formation in ... In Orion, typical low-mass star age is 106 yr, but O star age is 104 yr disks ...

OB associations like Orion are rare but large majority of star formation in ... In Orion, typical low-mass star age is 106 yr, but O star age is 104 yr disks ...

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Non-planet mechanisms for clearing and sculpting discs PowerPoint PPT Presentation

Non-planet mechanisms for clearing and sculpting discs - Non-planet mechanisms for clearing and sculpting discs James Owen (IOA - CITA) Barbara Ercolano (IOA - LMU) Hope to convince you: (Xray) photoevaporation now well ...

Non-planet mechanisms for clearing and sculpting discs James Owen (IOA - CITA) Barbara Ercolano (IOA - LMU) Hope to convince you: (Xray) photoevaporation now well ...

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Steve Boudreault PowerPoint PPT Presentation

Steve Boudreault - Title: Formation and Evolution of Brown Dwarfs (Spatial dependence of the open cluster IC 2391 mass function as a test of brown dwarfs formation mechanism)

Title: Formation and Evolution of Brown Dwarfs (Spatial dependence of the open cluster IC 2391 mass function as a test of brown dwarfs formation mechanism)

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Radiative Feedback on the formation of first generation subgalactic objects PowerPoint PPT Presentation

Radiative Feedback on the formation of first generation subgalactic objects - Title: PowerPoint Presentation Last modified by: Hajime Susa Created Date: 1/1/1601 12:00:00 AM Document presentation format:

Title: PowerPoint Presentation Last modified by: Hajime Susa Created Date: 1/1/1601 12:00:00 AM Document presentation format:

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Long%20term%20evolution%20of%20circumstellar%20discs:%20DM%20Tau%20and%20GM%20Aur PowerPoint PPT Presentation

Long%20term%20evolution%20of%20circumstellar%20discs:%20DM%20Tau%20and%20GM%20Aur - Long term evolution of circumstellar discs: DM Tau and GM Aur Ricardo Hueso (*) & Tristan Guillot Laboratoire Cassini, Observatoire de la C te d Azur, Nice, France

Long term evolution of circumstellar discs: DM Tau and GM Aur Ricardo Hueso (*) & Tristan Guillot Laboratoire Cassini, Observatoire de la C te d Azur, Nice, France

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The Nature of Transition Disks in Perseus, Taurus and Auriga PowerPoint PPT Presentation

The Nature of Transition Disks in Perseus, Taurus and Auriga - ... such as SED morphology and fractional disk luminosity to classify the disks as strong ... Grain growth-dominated disks account for ~40% of our sample of ...

... such as SED morphology and fractional disk luminosity to classify the disks as strong ... Grain growth-dominated disks account for ~40% of our sample of ...

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The Nebula Beginning PowerPoint PPT Presentation

The Nebula Beginning - This eerie, dark structure, resembling an imaginary sea serpent's ... These globules have been dubbed 'EGGs' -- an acronym for 'Evaporating Gaseous Globules' ...

This eerie, dark structure, resembling an imaginary sea serpent's ... These globules have been dubbed 'EGGs' -- an acronym for 'Evaporating Gaseous Globules' ...

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The use of PN precursors to study DIBs PowerPoint PPT Presentation

The use of PN precursors to study DIBs - ... the chemical composition of the dust grains (ISO, mm/submm, radio) ... ISO data in most cases; also from submm and/or radio observations) ... HD 183143. Pedro ...

... the chemical composition of the dust grains (ISO, mm/submm, radio) ... ISO data in most cases; also from submm and/or radio observations) ... HD 183143. Pedro ...

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Ionization - For hydrogenic ionic stages, the ionization cross-section (Dopita ... Magellanic Stream gas (Weiner & Williams 1996) Optical depth to ionizing radiation t = 3 ...

For hydrogenic ionic stages, the ionization cross-section (Dopita ... Magellanic Stream gas (Weiner & Williams 1996) Optical depth to ionizing radiation t = 3 ...

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Variable Stars and the Stories They Tell PowerPoint PPT Presentation

Variable Stars and the Stories They Tell - Massive object, typically comprised of mostly Hydrogen gas ... from their dusty and gaseous surroundings, these stars now become visible at ...

Massive object, typically comprised of mostly Hydrogen gas ... from their dusty and gaseous surroundings, these stars now become visible at ...

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Protoplanetary Disks as Accretion Disks PowerPoint PPT Presentation

Protoplanetary Disks as Accretion Disks - Collapse of Jeans-unstable dense clumps of molecular gas. ... Magneto-rotational Instability (MRI) is the most likely agent, BUT ...

Collapse of Jeans-unstable dense clumps of molecular gas. ... Magneto-rotational Instability (MRI) is the most likely agent, BUT ...

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Radioactive Decay Process and Data PowerPoint PPT Presentation

Radioactive Decay Process and Data - Spacecraft Environment & Protection Group. GEANT4 Workshop, Noordwijk, 20-24 Sep 1999 ... Spacecraft Environment & Protection Group. GEANT4 Workshop, Noordwijk, ...

Spacecraft Environment & Protection Group. GEANT4 Workshop, Noordwijk, 20-24 Sep 1999 ... Spacecraft Environment & Protection Group. GEANT4 Workshop, Noordwijk, ...

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Modeling the structure, chemistry and appearance of protoplanetary disks PowerPoint PPT Presentation

Modeling the structure, chemistry and appearance of protoplanetary disks - Summary Modeling the structure, chemistry and appearance of protoplanetary disks Ringberg April 13 - April 17, 2004 Carsten Dominik Disk dissipation Coincidence NIR ...

Summary Modeling the structure, chemistry and appearance of protoplanetary disks Ringberg April 13 - April 17, 2004 Carsten Dominik Disk dissipation Coincidence NIR ...

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Formation of the first and second generation stars PowerPoint PPT Presentation

Formation of the first and second generation stars - made of primordial pristine gas (H, He, small Li) ... Density fluctuation by SN blast wave, or HII region. Different Environment ...

made of primordial pristine gas (H, He, small Li) ... Density fluctuation by SN blast wave, or HII region. Different Environment ...

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Mass Distribution and Planet Formation in the Solar Nebula PowerPoint PPT Presentation

Mass Distribution and Planet Formation in the Solar Nebula - Disk profile is so steep because mass is constantly removed from the outer edge of the disk. ... would not form in a viscously spreading, Taurus-style disk. ...

Disk profile is so steep because mass is constantly removed from the outer edge of the disk. ... would not form in a viscously spreading, Taurus-style disk. ...

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Mass Distribution and Planet Formation in the Solar Nebula - School of Earth and Space Exploration. Arizona State University ... The augmented mass then spread out over the annuli in which they orbit. Surface density roughly ...

School of Earth and Space Exploration. Arizona State University ... The augmented mass then spread out over the annuli in which they orbit. Surface density roughly ...

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Henry Throop PowerPoint PPT Presentation

Henry Throop - 104 stars in last 10 Myr (Orion) # of stars. Dense Clusters. HBT 28-Jun-2005 ... MMSN disks surrounding most Orion stars can be truncated to a few AU in Myr. ...

104 stars in last 10 Myr (Orion) # of stars. Dense Clusters. HBT 28-Jun-2005 ... MMSN disks surrounding most Orion stars can be truncated to a few AU in Myr. ...

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Project Goals PowerPoint PPT Presentation

Project Goals - Short-lived nuclides in the early solar system and their half-lives: 26Al ... nuclide chronometers relative to. U-Pb-Pb: 26Al 26Mg (0.72 Ma) 129I 129Xe (16 Ma) ...

Short-lived nuclides in the early solar system and their half-lives: 26Al ... nuclide chronometers relative to. U-Pb-Pb: 26Al 26Mg (0.72 Ma) 129I 129Xe (16 Ma) ...

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Astrobiology PowerPoint PPT Presentation

Astrobiology - Artist's (David A. Hardy) conception of the view from the day side of a ... G. 2000, Origins of Life on the Earth and in the Cosmos, 2nd ed. (Academic Press) ...

Artist's (David A. Hardy) conception of the view from the day side of a ... G. 2000, Origins of Life on the Earth and in the Cosmos, 2nd ed. (Academic Press) ...

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Star Formation at Very Low Metallicities - Star Formation at Very Low Metallicities

Star Formation at Very Low Metallicities

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Which Parts of Protoplanetary Disks are Susceptible to the Magnetorotational Instability PowerPoint PPT Presentation

Which Parts of Protoplanetary Disks are Susceptible to the Magnetorotational Instability - T Tauri disks in Taurus observed to viscously spread with ~ 10-2 [Hartmann et al. ... Steep profile (r) = 343 (r / 10 AU)-2.17 g cm-2 is not consistent with steady ...

T Tauri disks in Taurus observed to viscously spread with ~ 10-2 [Hartmann et al. ... Steep profile (r) = 343 (r / 10 AU)-2.17 g cm-2 is not consistent with steady ...

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Formation, structure and evolution of the Giant Planets PowerPoint PPT Presentation

Formation, structure and evolution of the Giant Planets - What is the subject of the act 'Formation and evolution of OUR Jovian planets' ... Strong disequilibrium phases can be anyhow possible (Wuchterl, 1993), and shock ...

What is the subject of the act 'Formation and evolution of OUR Jovian planets' ... Strong disequilibrium phases can be anyhow possible (Wuchterl, 1993), and shock ...

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Susanne Pfalzner PowerPoint PPT Presentation

Susanne Pfalzner - 10-15% in Trapezium region (R = 0.3 pc) In accordance with Lada et. al (2001): 80-85 % of stars in Trapezium Cluster possess discs. Olczak, Pfalzner, Spurzem ...

10-15% in Trapezium region (R = 0.3 pc) In accordance with Lada et. al (2001): 80-85 % of stars in Trapezium Cluster possess discs. Olczak, Pfalzner, Spurzem ...

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Prezentacja programu PowerPoint PowerPoint PPT Presentation

Prezentacja programu PowerPoint - EVOLUTION OF THE PLANETESIMAL SWARM. FORMATION & EARLY EVOLUTION OF PLANETARY SYSTEMS ... PLANETESIMAL DISK : ISOLATION MASS. A simple estimate: ...

EVOLUTION OF THE PLANETESIMAL SWARM. FORMATION & EARLY EVOLUTION OF PLANETARY SYSTEMS ... PLANETESIMAL DISK : ISOLATION MASS. A simple estimate: ...

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Inti didnt form in the X wind and neither did most CAIs PowerPoint PPT Presentation

Inti didnt form in the X wind and neither did most CAIs - Starring STEVE DESCH, Arizona State University School of Earth and Space Exploration. ... The augmented mass then spread out over the annuli in which they orbit. ...

Starring STEVE DESCH, Arizona State University School of Earth and Space Exploration. ... The augmented mass then spread out over the annuli in which they orbit. ...

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The Hubble Space Telescope and Next Generation Space Telescope - The Hubble Space Telescope and Next Generation Space Telescope

The Hubble Space Telescope and Next Generation Space Telescope

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Adaptive Optics: basic concepts, principles and applications Short course of lectures PowerPoint PPT Presentation

Adaptive Optics: basic concepts, principles and applications Short course of lectures - Adaptive Optics: basic concepts, principles and applications Short course of lectures Vadim Parfenov Res.Ctr. S.I.Vavilov State Optical Institute

Adaptive Optics: basic concepts, principles and applications Short course of lectures Vadim Parfenov Res.Ctr. S.I.Vavilov State Optical Institute

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The Formation and Longterm Evolution of Circumstellar Disks PowerPoint PPT Presentation

The Formation and Longterm Evolution of Circumstellar Disks - FU Ori. FUor's are YSO's with significant circumstellar material. ... Observed frequency of FU Ori eruptions (last 50 years) is several times greater ...

FU Ori. FUor's are YSO's with significant circumstellar material. ... Observed frequency of FU Ori eruptions (last 50 years) is several times greater ...

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Forming Planets: when and how PowerPoint PPT Presentation

Forming Planets: when and how - These waves carry angular momentum and can push gas away from planet opening a gap ... density in disk collapse under its own gravity, forming a giant planet ...

These waves carry angular momentum and can push gas away from planet opening a gap ... density in disk collapse under its own gravity, forming a giant planet ...

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IFU Spectroscopy of the proplyd LV2 PowerPoint PPT Presentation

IFU Spectroscopy of the proplyd LV2 - Instrumental profile 47 km s-1 FWHM 63 km s-1. Data reduction with Gemini IRAF v1.6 standard except cosmic ray extraction which ...

Instrumental profile 47 km s-1 FWHM 63 km s-1. Data reduction with Gemini IRAF v1.6 standard except cosmic ray extraction which ...

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Late Injection of Radionuclides into PowerPoint PPT Presentation

Late Injection of Radionuclides into - A supernova injected radionuclides into solar system. Injection occurred after the disk ... Supernova shock will plow into disk until critical isobar reached ...

A supernova injected radionuclides into solar system. Injection occurred after the disk ... Supernova shock will plow into disk until critical isobar reached ...

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Main criteria for classical PDRs are: PowerPoint PPT Presentation

Main criteria for classical PDRs are: - the sources have a well defined geometry and orientation with ... F. Boulanger IAS-FR D. Teyssier ESA-ES. A. Fuente OAN-ES H. Yorke JPL-US ...

the sources have a well defined geometry and orientation with ... F. Boulanger IAS-FR D. Teyssier ESA-ES. A. Fuente OAN-ES H. Yorke JPL-US ...

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Photoevaporation PowerPoint PPT Presentations