Man

Cedric . Ledoux .

Support Astronomer

European Southern Observatory

Santiago, Chile

Líneas de Investigación


• Damped Lyman-alpha Systems: H2 molecules, dust and metals at high redshift • Gamma-Ray Burst host galaxies and circumburst environment • Lyman-alpha emitting galaxies at high z, Large-Scale Structure of the Universe

Educación

  •  Astronomy, Observatorie Astronomique de Strasbourg. Francia, 1999

Experiencia Profesional

  •   Research Associate Full Time

    European Southern Observatory

    Garching, Alemania

    2000 - 2000

  •   Science Fellow Full Time

    European Southern Observatory

    Garching, Chile

    2000 - 2001

Formación de Capital Humano


Frank Coppolani, PhD. student: Mar. 2004-2006 (IGM)
Pasquier Noterdaeme, short-term student: May-Aug. 2004 (UVES POP), Apr.-Jul. 2005 (HE DLAs)
Pasquier Noterdaeme, PhD. student: Oct. 2005-2008 (H2)



 

Article (124)

Early-type stars observed in the ESO UVES Paranal Observatory Project - IV. Studies of CN, CH+ and CH in the interstellar medium
An investigation of the line of sight towards QSO PKS 0237-233
Comprehensive study of a z=2.35 DLA Galaxy: mass, metallicity, age, morphology and SFR from HST and VLT star
Dust-to-metal ratios in damped Lyman-alpha absorbers Fresh clues to the origins of dust and optical extinction towards gamma-ray bursts
Mass-metallicity relation from z=5 to the present: evidence for a transition in the mode of galaxy growth at z=2.6 due to the end of sustained primordial gas infall
Molecular hydrogen in the damped Lyman alpha system towards GRB 120815A at z=2.36
On the two high-metallicity DLAs at z=2.412 and 2.583 towards Q 0918+1636
OPTICAL/NEAR-INFRARED SELECTION OF RED QUASI-STELLAR OBJECTS: EVIDENCE FOR STEEP EXTINCTION CURVES TOWARD GALACTIC CENTERS?
Time-dependent excitation and ionization modelling of absorption-line variability due to GRB080310
Deuterium at high redshift: Primordial abundance in the z abs = 2.621 damped Ly-? system towards CTQ 247
Discovery of a compact gas-rich damped Lyman-alpha galaxy at z = 2.2: evidence of a starburst-driven outflow
Galaxy counterparts of intervening high-z sub-DLAs/DLAs and Mg II absorbers towards gamma-ray bursts
METALLICITIES, DUST, AND MOLECULAR CONTENT OF A QSO-DAMPED Ly alpha SYSTEM REACHING log N(H I)=22: AN ANALOG TO GRB-DLAs
On the sizes of z greater than or similar to 2 damped Ly alpha absorbing galaxies
Primordial abundance in the z(abs)=2.621 damped Ly-alpha system towards CTQ247
Rapid-response mode VLT/UVES spectroscopy of super iron-rich gas exposed to GRB 080310 Evidence of ionization in action and episodic star formation in the host
Search for cold gas in z > 2 damped Ly? systems: 21-cm and H 2 absorption
Search for cold gas in z > 2 damped Ly alpha systems: 21-cm and H-2 absorption
A Ly alpha blob and z(abs) approximate to z(em) damped Ly alpha absorber in the dark matter halo of the binary quasar Q 0151+048
Early-type stars observed in the ESO UVES Paranal Observatory Project - III. Sub-parsec and au-scale structure in the interstellar medium
Erratum: Rapid-response mode VLT/UVES spectroscopy of GRB†‰ 060418: Conclusive evidence for UV pumping from the time evolution of Fe II and Ni II excited-and metastable-level populations (Astronomy & Astrophysics (2007) 468 (83-96) 10.1051/0004-6361:20066780)
Galaxy counterparts of metal-rich damped Ly alpha absorbers - II. A solar-metallicity and dusty DLA at z(abs)=2.58
Galaxy counterparts of metal-rich damped Ly? absorbers - II. A solar-metallicity and dusty DLA at z abs= 2.58
High-ion absorption in the proximate damped Ly-? system toward Q0841+129
High-ion absorption in the proximate damped Ly-alpha system toward Q0841+129
Optical atmospheric extinction over Cerro Paranal
Partial coverage of the broad-line region of Q1232+082 by an intervening H 2-bearing cloud
Partial coverage of the broad-line region of Q1232+082 by an intervening H2-bearing cloud
Probing gamma-ray burst environments with time variability: ULTRASPEC fast imaging of GRB 080210
The evolution of the cosmic microwave background temperature Measurements of T-CMB at high redshift from carbon monoxide excitation
A translucent interstellar cloud at z=2.69 CO, H-2, and HD in the line-of-sight to SDSS J123714.60+064759.5
Detection of 21-cm, H-2 and deuterium absorption at z > 3 along the line of sight to J1337+3152
Detection of 21-cm, H2 and deuterium absorption at z > 3 along the line of sight to J1337+3152
Erratum: Low-resolution spectroscopy of gamma-ray burst optical afterglows: Biases in the swift sample and characterization of the absorbers (The Astrophysical Journal Supplement Series 2009 185 (526))
Galaxy counterparts of metal-rich damped Ly alpha absorbers - I. The case of the z=2.35 DLA towards Q2222-0946
Galaxy counterparts of metal-rich damped Ly? absorbers - I. The case of the z= 2.35 DLA towards Q 2222-0946
HD molecules at high redshift: the absorption system at z=2.3377 towards Q 1232+082 star
Constraining the energy budget of GRB 080721
Diffuse molecular gas at high redshift - Detection of CO molecules and the 2175 Å dust feature at z = 1.64
Diffuse molecular gas at high redshift Detection of CO molecules and the 2175 angstrom dust feature at z=1.64
EARLY SPECTROSCOPIC IDENTIFICATION OF SN 2008D
Evolution of the cosmological mass density of neutral gas from Sloan Digital Sky Survey II - Data Release 7
Metal-enriched plasma in protogalactic halos: Asurvey ofN v absorption in high-z damped and sub-damped Lyman-? systems
Physical conditions in high-redshift GRB-DLA absorbers observed with VLT/UVES: implications for molecular hydrogen searches
Statistics and characteristics of MgII absorbers along GRB lines of sight observed with VLT-UVES
The Building the Bridge survey for z = 3 Ly? emitting galaxies
The Building the Bridge survey for z=3 Ly alpha emitting galaxies II. Completion of the survey
Uncovering strong MgII absorbing galaxies Imaging below the Lyman limit
First detection of CO in a high-redshift damped Lyman-? system
First detection of CO in a high-redshift damped Lyman-alpha system
HD molecules at high redshift A low astration factor of deuterium in a solar-metallicity DLA system at z=2.418
Molecular hydrogen in high-redshift damped Lyman-? systems: The VLT/UVES database
Molecular hydrogen in high-redshift damped Lyman-alpha systems: the VLT/UVES database
The host of GRB 060206: kinematics of a distant galaxy
The nitrogen and oxygen abundances in the neutral gas at high redshift
A multi-wavelength study of z = 3.15 Lyman-? emitters in the GOODS South Field
A multi-wavelength study of z=3.15 Lyman-alpha emitters in the GOODS South Field
C IV absorption in damped and sub-damped Lyman-? systems Correlations with metallicity and implications for galactic winds at z ap; 2-3
Detection of GRB 060927 at z=5.47: Implications for the use of gamma-ray bursts as probes of the end of the dark ages
Excitation mechanisms in newly discovered H-2-bearing damped Lyman-alpha clouds: systems with low molecular fractions
Excitation mechanisms in newly discovered H2-bearing damped Lyman-? clouds: Systems with low molecular fractions
Hot halos around high red shift protogalaxies observations of O VI and N v absorption in damped Lyman-? systems
Hot halos around high redshift protogalaxies - Observations of OVI and NV absorption in damped Lyman-alpha systems
Intervening metal systems in GRB and QSO sight lines: The Mg-II and C-IV question
Multiphase plasma in sub-damped Ly alpha systems: A hidden metal reservoir
Multiphase plasma in sub-damped Ly? systems: A hidden metal reservoir
Physical conditions in the neutral interstellar medium at z=2.43 toward Q2348-011
Rapid-response mode VLT/UVES spectroscopy of GRB060418 - Conclusive evidence for UV pumping from the time evolution of FeII and NiII excited- and metastable-level populations
The nature of the dwarf starforming galaxy associated with GRB 060218/SN 2006aj
A log N HI, = 22.6 damped Ly? absorber in A dark gamma-ray burst: The environment of GRB 050401
A log N-HI=22.6 damped Ly alpha absorber in a dark gamma-ray burst: The environment of GRB 050401
A Lyman-? blob in the GOODS South field: Evidence for cold accretion onto a dark matter halo
A Lyman-alpha blob in the GOODS South field: evidence for cold accretion onto a dark matter halo
Abundance analysis of 5 early-type stars in the young open cluster IC 2391
An optical supernova associated with the X-ray flash XRF 060218
Early-type stars observed in the ESO UVES Paranal Observatory Project - I. Interstellar NaIUV, TiII and CaIIKobservations
HI column densities of z > 2 Swift gamma-ray bursts
Kinematics and star formation activity in the z abs = 2.03954 damped Lyman-? system towards PKS 0458-020
Kinematics and star formation activity in the z(abs)=2.03954 damped Lyman-alpha system towards PKS 0458-020
Low-resolution VLT spectroscopy of GRBs 991216, 011211 and 021211
Metallicity as a criterion to select H-2-bearing damped Lyman-alpha systems
Metallicity as a criterion to select H2-bearing damped Lyman-? systems
Molecular hydrogen in a damped Ly alpha system at z(abs)=4.224
Molecular hydrogen in a damped Lya system at z abs = 4.224
Probing cosmic chemical evolution with gamma-ray bursts: GRB 060206 at z=4.048
Relative abundance pattern along the profile of high red shift Damped Lyman-? systems
Relative abundance pattern along the profile of high redshift Damped Lyman-alpha systems
The most metal-poor damped Lyman ? system at z < 3: Constraints on early nucleosynthesis
The most metal-poor damped Lyman alpha system at z < 3: constraints on early nucleosynthesis
Three intervening galaxy absorbers towards GRB 060418: faint and dusty?
Velocity-metallicity correlation for high-z DLA galaxies: evidence of a mass-metallicity relation?
A new constraint on the time dependence of the proton-to-electron mass ratio - Analysis of the Q 0347-383 and Q 0405-443 spectra
Damped Lyman alpha (DLA) systems in GRB afterglows: Probing dense regions in GRB host galaxies
DLA systems in GRB afterglows
Evidence for a magnitude-dependent bias in the Hamburg/ESO survey for damped Lyman-? systems
Molecular hydrogen at high-z: Physical conditions in protogalaxies
Molecular hydrogen in the high redshift damped Ly-alpha systems
Optical and radio observations of a sample of 52 powerful ultra-steep spectrum radio sources
Polarimetric standard stars observed with FORS1 at ESO-VLT
The mass-metallicity relation for high-redshift damped Ly? galaxies
The sub-damped Ly alpha system toward HE 0001-2340: galaxy formation at z approximate to 2
The sub-damped Ly? system toward HE 0001-2340: Galaxy formation at z ? 2
The UVES Paranal Observatory Project: A public library of high resolution stellar spectra
The VLT-UVES survey for H-2 in high-redshift damped Lyman-alpha systems
The VLT-UVES survey for molecular hydrogen in high-redshift damped Lyman a systems: Physical conditions in the neutral gas
The VLT-UVES survey for molecular hydrogen in high-redshift damped Lyman alpha systems: physical conditions in the neutral gas
The VLT-UVES survey for molecular hydrogen in high-redshift damped Lyman-? systems
Tracing large-scale structure at high redshift with Lyman-? emitters: The effect of peculiar velocities
Tracing large-scale structure at high redshift with Lyman-alpha emitters: the effect of peculiar velocities
The line-of-sight towards GRB 030429 at z=2.66: Probing the matter at stellar, galactic and intergalactic scales
Time dependence of the proton-to-electron mass ratio
On the Ly alpha emission from gamma-ray burst host galaxies: Evidence for low metallicities
On the Ly? emission from gamma-ray burst host galaxies: Evidence for low metallicities
Outflowing material in the z(em)=4.92 BAL QSO SDSS J160501.21-011220.0
The building the bridge survey for z = 3 Ly? emitting galaxies: I. Method and first results
The Building the Bridge survey for z=3 Ly alpha emitting galaxies - I. Method and first results
The Very Large Telescope Ultraviolet and Visible Echelle Spectrograph survey for molecular hydrogen in high-redshift damped Lyman ? systems
The Very Large Telescope ultraviolet and Visible Echelle Spectrograph survey for molecular hydrogen in high-redshift damped Lyman alpha systems
A collimated flow driven by radiative pressure from the nucleus of quasar Q1511+091
Detection of molecular hydrogen in a near solar-metallicity damped Lyman-? system at zabs ? 2 toward Q 0551-366
Detection of molecular hydrogen in a near solar-metallicity damped Lyman-alpha system at z(abs)approximate to 2 toward Q 0551-366?
Erratum: Detection of molecular hydrogen in a near solar-metallicity damped Lyman-? system at Zabs ? 2 toward Q 0551-366 (Astronomy and Astrophysics (2002) 392 (781-789))
The PHESAT95 catalogue of observations of the mutual events of the Saturnian satellites
UBV RI photometry of the FK5 Extension Catalogue stars

ConferencePaper (11)

Super iron-rich gas towards GRB 080310: SN yields or dust destruction?
From Chile to Europe in minutes: Handling the data stream from ESO's Paranal observatory
The VLT rapid-response mode: Implementation and scientific results
Mg II absorbers along GRB lines of sight
Hot Halos around high-redshift galaxies
IOT overview: High Resolution spectrographs
Molecular hydrogen at high redshift and the variation with time of the electron-to-proton mass ratio, ? = me/mp
Recent developments in the optimal extraction of UVES spectra
A study of the UVES instrumental polarisation - art. no. 62692R
Damped Ly alpha systems in GRB afterglows
Building the Bridge between Damped Ly? Absorbers and Lyman-Break Galaxies

Errata (3)

Rapid-response mode VLT/UVES spectroscopy of GRB 060418 Conclusive evidence for UV pumping from the time evolution of Fe II and Ni II excited- and metastable-level populations (vol 468, pg 83, 2007)
LOW-RESOLUTION SPECTROSCOPY OF GAMMA-RAY BURST OPTICAL AFTERGLOWS: BIASES IN THE SWIFT SAMPLE AND CHARACTERIZATION OF THE ABSORBERS (vol 185, pg 526, 2009)
Detection of molecular hydrogen in a near Solar-metallicity damped Lyman-alpha system at Z(abs) approximate to 2 toward Q 0551-366 (vol 392, pg 781, 2002)

Review (6)

DUST EXTINCTION IN HIGH-z GALAXIES WITH GAMMA-RAY BURST AFTERGLOW SPECTROSCOPY: THE 2175 angstrom FEATURE AT z=2.45
LOW-RESOLUTION SPECTROSCOPY OF GAMMA-RAY BURST OPTICAL AFTERGLOWS: BIASES IN THE SWIFT SAMPLE AND CHARACTERIZATION OF THE ABSORBERS
Metal-enriched plasma in protogalactic halos A survey of N V absorption in high-z damped and sub-damped Lyman-alpha systems
High-ion absorption in seven GRB host galaxies at z=2-4 Evidence for both circumburst plasma and outflowing interstellar gas
CIV absorption in damped and sub-damped Lyman-alpha systems - Correlations with metallicity and implications for galactic winds at z approximate to 2-3
The host of GRB 030323 at z=3.372: A very high column density DLA system with a low metallicity
163
Cedric Ledoux

Support Astronomer

European Southern Observatory

Santiago, Chile

13
Sebastian Lopez

Associate Professor

DEPARTAMENTO DE ASTRONOMIA

Santiago, Chile

1
Leonardo Vanzi

full time

Electrical Engineering

Pontificia Universidad Catolica de Chile

Santiago, Chile

1
Isabelle JARRY

Directora Licenciatura en Astronomía

Ciencias Físicas

UNIVERSIDAD ANDRES BELLO,

Santiago, Chile