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Chapter and Conference Paper
CALYPSO: An IRAM Plateau de Bure Survey of Class 0 Protostars
The physics of the youngest protostars, e.g. Class 0 objects, remains poorly understood. For instance, the processes by which the angular momentum present in the parent core is conserved during the main collap...
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Chapter
Deriving Physical Diagnostics from Observations
We review in this course diagnostics for the physical conditions in the atomic component of the flow (electronic densities nê, electronic temperatures T e and ...
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Article
Open AccessThe molecular hydrogen explorer H2EX
The Molecular Hydrogen Explorer, H2EX, was proposed in response to the ESA 2015 - 2025 Cosmic Vision Call as a medium class space mission with NASA and CSA participations. The mission, conceived to understand the...
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Article
Near-IR [Fe ii] Emission Diagnostics: Disk Winds in Young Stars
We investigate in this contribution emissivity properties of the [Fe ii] near-IR lines and their application to the study of jets in young stars. We report a model-independent method to determine the gas phase...
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Article
The Origin of Jets from Young Stars: MHD Disk Wind Models Confronted to Observations
We discuss in this contribution constraints on the origin of mass-loss from young stars brought by recent observations at high angular resolution (0.1″ = 14 AU) of the inner regions of winds from T Tauri stars...
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Article
H2 Diagnostics of Magnetic Molecular Shocks in Bipolar Outflows
The shock waves associated with molecular outflows may be of continuous (C) type or jump (J) type, depending on conditions in the preshock gas, notably the magnetic field strength and the degree of ionisation....
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Chapter
H2 Diagnostics of Magnetic Molecular Shocks in Bipolar Outflows
The shock waves associated with molecular outflows may be of continuous (C) type or jump (J) type, depending on conditions in the preshock gas, notably the magnetic field strength and the degree of ionisation....
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Chapter
The Origin of Jets from Young Stars: MHD Disk Wind Models Confronted to Observations
We discuss in this contribution constraints on the origin of mass-loss from young stars brought by recent observations at high angular resolution (0.1″ = 14 AU) of the inner regions of winds from T Tauri stars...
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Chapter and Conference Paper
Shock-Excited Rotational H2 Lines in Class 0 Sources as Probes of Magnetic Field and Chemistry in the Dense Interstellar Medium
The Diagnostic Potential of v=0-0 H 2 Lines Strong and collimated outflow activity is among the most spectacular characteristic of Class 0 sources, and actually led to discover t...
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Article
The RW Aur microjet: testing MHD disk wind models
We conduct a detailed comparison between the kinematics, morpology and excitation conditions of the RW Aur microjet on scales < 200 AU with predictions from stationary, self-similar, cold disk wind solutions. Imp...
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Article
Diagnosing the conditions in molecular outflow sources: New developments in shock wave models with non-equilibrium chemistry
The shock waves associated with molecular outflows may be of continuous (C) type or jump (J) type, depending on conditions in the preshock gas, notably the degree of ionization. Intermediate situations also ex...
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Chapter
The Rw Aur Micro Jet: Testing Mhd Disk Wind Models
We conduct a detailed comparison between the kinematics, morpology and excitation conditions of the RW Aur microjet on scales < 200 AU with predictions from stationary, self-similar, cold disk wind solutions. Imp...
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Chapter
Diagnosing the Conditions in Molecular Outflow Sources: New Developments in Shock Wave Models with Non-Equilibrium Chemistry
The shock waves associated with molecular outflows may be of continuous (C) type or jump (J) type, depending on conditions in the preshock gas, notably the degree of ionization. Intermediate situations also ex...
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Chapter and Conference Paper
A Mega Integral Field Spectrograph for the VLT
We describe MIFS, a second generation integral-field spectrograph for the VLT, operating in the visible wavelength range. It combines a $1^\pr...
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Chapter and Conference Paper
A Mega Integral Field Spectrograph for the VLT
We describe MIFS, a second generation integral-field spectrograph for the VLT, operating in the visible wavelength range. It combines a 1′×1′ field of view with the improved spatial resolution provided by mult...
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Chapter and Conference Paper
Evolution of outflow activity around low mass embedded young stellar objects
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Article
Models of molecular outflows
In this contribution, I present a broad “historical” review of the various hydrodynamical models that have been considered for explaining molecular outflows, and of their merits and failures when compared with...
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Chapter and Conference Paper
Models of Molecular Outflows
In this contribution, I present abroad “historical” review of the various hydrodynamical models that have been considered for explaining molecular outflows, and of their merits and failures when compared with ...
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Article
Subarcsec 10μm imaging of bipolar flow sources
We have started a program of high-resolution (0.4″/pixel) 10μm imaging of bipolar outflow sources using the 10μm camera CAMIRAS. We present recent results obtained at the Canada France Hawaii Telescope which r...
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Article
A deeply embedded companion to LKHα198
The region around the Herbig Ae/Be star LkHα198 was imaged at 10μm with the CAMIRAS camera at the Canada-France-Hawaii Telescope and the Nordic Optical Telescope. We discovered a deeply embedded companion 6″ n...
