M. Lombardi

Publication List Details

Period

1969 - 2008

Number

100

Co-Authors

A twelve-image gravitational lens system in the z ~ 0.84 cluster Cl J0152.7-1357 (2008)

Grillo, C., Lombardi, M., Rosati, P., Bertin, G., Gobat, R., Demarco, R., ...

Gravitational lens modeling is presented for the first discovered example of a three-component source for which each component is quadruply imaged. The lens is a massive galaxy member of the cluster...

Hipparcos distances of Ophiuchus and Lupus cloud complexes (2008)

Lombardi, M., Lada, C., Alves, J.

We combine extinction maps from the Two Micron All Sky Survey (2MASS) with Hipparcos and Tycho parallaxes to obtain reliable and high-precision estimates of the distance to the Ophiuchus and Lupus...

The mass distribution of RX J1347-1145 from strong lensing (2008)

Halkola, A., Hildebrandt, H., Schrabback, T., Lombardi, M., Bradac, M., Erben, T., ...

High resolution HST/ACS images of the galaxy cluster RX J1347-1145 have enabled us to identify several new multiple image candidates in the cluster, including a 5 image system with a central image....

Stellar mass estimates in early-type galaxies from lensing+dynamical and photometric measurements (2007)

Grillo, C., Gobat, R., Rosati, P., Lombardi, M.

In this paper we compare two different diagnostics for estimating stellar masses in early-type galaxies and we establish their level of reliability. In particular, we consider the well-studied sample...

Cosmological parameters from strong gravitational lensing and stellar dynamics in elliptical galaxies (2007)

Grillo, C., Lombardi, M., Bertin, G.

We show how the combination of observations related to strong gravitational lensing and stellar dynamics in ellipticals offers a new way to measure the cosmological matter and dark-energy density...

The nature of the dense core population in the pipe nebula: core and cloud kinematics from C18O observations (2007)

Muench, August A., Lada, Charles J., Rathborne, Jill M., Alves, João F., Lombardi, M.

We present molecular-line observations of 94 dark cloud cores identified in the Pipe nebula through near-IR extinction mapping. Using the Arizona Radio Observatory 12m telescope, we obtained spectra...

The nature of the dense core population in the Pipe Nebula: A survey of NH3, CCS, and HC5N molecular line emission (2007)

Rathborne, J. M., Lada, C. J., Muench, A. A., Alves, J. F., Lombardi, M.

Recent extinction studies of the Pipe Nebula (d=130 pc) reveal many cores spanning a range in mass from 0.2 to 20.4 Msun. These dense cores were identified via their high extinction and comprise a...

Quantum and semiclassical phase functions for the quantization of symmetric oscillators (2007)

Matzkin, A., Lombardi, M.

We investigate symmetric oscillators, and in particular their quantization, by employing semiclassical and quantum phase functions introduced in the context of Liouville-Green transformations of the...

Strong Lensing Analysis of the Cluster RCS0224-0002 at $z=0.77$ (2007)

Rzepecki, J., Lombardi, M., Rosati, P., Bignamini, A., Tozzi, P.

We present a detailed mass reconstruction of the cluster RCS0224-0002 at $z=0.773$ from the strong lensing features observed with HST/WFPC2. The mass profile is reconstructed using a parametric...

The mass function of dense molecular cores and the origin of the IMF (2006)

Alves, J., Lombardi, M., Lada, C.

Context: Stars form in the cold dense cores of interstellar molecular clouds and the detailed knowledge of the spectrum of masses of such cores is clearly a key for the understanding of the origin of...

Dynamical entanglement and chaos: the case of Rydberg molecules (2006)

Lombardi, M, Matzkin, A

A Rydberg molecule is composed of an outer electron that collides on the residual ionic core. Typical states of Rydberg molecules display entanglement between the outer electron and the core. In this...

Scattering induced dynamical entanglement and the quantum-classical correspondence (2005)

Lombardi, M., Matzkin, A.

The generation of entanglement produced by a local potential interaction in a bipartite system is investigated. The degree of entanglement is contrasted with the underlying classical dynamics for a...

HST/ACS weak lensing analysis of the galaxy cluster RDCS 1252.9-2927 at z=1.24 (2005)

Lombardi, M., Rosati, P., Blakeslee, J. P., Ettori, S., Demarco, R., Ford, H. C., ...

We present a weak lensing analysis of one of the most distant massive galaxy cluster known, RDCS 1252.9-2927 at z=1.24, using deep images from the Advanced Camera for Survey (ACS) on board the Hubble...

Strong and weak lensing united II: the cluster mass distribution of the most X-ray luminous cluster RX J1347.5-1145 (2004)

Bradac, M., Erben, T., Schneider, P., Hildebrand, H., Lombardi, M., Schirmer, M., ...

We have shown that the cluster-mass reconstruction method which combines strong and weak gravitational lensing data, developed in the first paper in the series, successfully reconstructs the mass...

Strong and weak lensing united I: the combined strong and weak lensing cluster mass reconstruction method (2004)

Bradac, M., Schneider, P., Lombardi, M., Erben, T.

Weak gravitational lensing is considered to be one of the most powerful tools to study the mass and the mass distribution of galaxy clusters. However, the mass-sheet degeneracy transformation has...

Weighting the Clusters of Galaxies with Weak Gravitational Lensing: The problem of the mass-sheet degeneracy (2004)

Bradac, M., Lombardi, M., Schneider, P.

Weak gravitational lensing is considered to be one of the most powerful tools to study the mass and the mass distribution of galaxy clusters. However, weak lensing mass reconstructions are plagued by...

Mass-sheet degeneracy: Fundamental limit on the cluster mass reconstruction from statistical (weak) lensing (2004)

Bradac, M., Lombardi, M., Schneider, P.

Weak gravitational lensing is considered to be one of the most powerful tools to study the mass and the mass distribution of galaxy clusters. However, weak lensing mass reconstructions are plagued by...

Variational Estimates using a Discrete Variable Representation (2004)

Lombardi, M., Barletta, P., Kievsky, A.

The advantage of using a Discrete Variable Representation (DVR) is that the Hamiltonian of two interacting particles can be constructed in a very simple form. However the DVR Hamiltonian is...

Massive star formation in a gravitationally-lensed HII-galaxy at z=3.357 (2003)

Fosbury, R. A. E., Villar-Martin, M., Lombardi, M., Rosati, P., Stern, D., Hook, R. N., ...

The Lynx arc, with a redshift of 3.357, was discovered during spectroscopic follow-up of the z=0.570 cluster RX J0848+4456 from the ROSAT Deep Cluster Survey. The arc is characterized by a very red...

The signature of substructure on gravitational lensing in the LCDM cosmological model (2003)

Bradac, M., Schneider, P., Lombardi, M., Steinmetz, M., Koopmans, L. V. E., Navarro, Julio F.

We present a study of the lens properties of quadruply imaged systems, lensed by numerically simulated galaxies. We investigate a simulated elliptical and disc galaxy drawn from high resolution...

The three-point correlation function of cosmic shear - I. The natural components (2003)

Schneider, P., Lombardi, M.

The three-point correlation function of cosmic shear, the weak distortion of the images of distant galaxies by the gravitational field of the inhomogeneous matter distribution in the Universe, is...

X-ray and weak lensing measurements of the mass profile of MS1008.1-1224: Chandra and VLT data (2002)

Ettori, S., Lombardi, M.

We analyse the Chandra dataset of the galaxy cluster MS1008.1-1224 to recover an estimate of the gravitating mass as function of the radius and compare these results with the weak lensing...

Using VLBI Data to Investigate the Galaxy Structure in the Gravitationally Lensed System B1422+231 (2002)

Bradac, M., Schneider, P., Steinmetz, M., Lombardi, M., King, L., Porcas, R.

Gravitationally lensed systems with multiply imaged quasars are an excellent tool for studying the properties of distant galaxies. In particular, they provide the most accurate mass measures for the...

B1422+231: The influence of mass substructure on strong lensing (2002)

Bradac, M., Schneider, P., Steinmetz, M., Lombardi, M., King, L. J., Porcas, R.

In this work we investigate the gravitationally lensed system B1422+231. High-quality VLBI image positions, fluxes and shapes as well as an optical HST lens galaxy position are used. First, two...

B1422+231 : The influence of mass substructure on strong lensing (2002)

Bradac, M., Schneider, P., Steinmetz, M., Lombardi, M., King, L. J., Porcas, R.

In this work we investigate the gravitationally lensed system B1422+231. High-quality VLBI image positions, fluxes and shapes as well as an optical HST lens galaxy position are used. First, two...

B1422+231: The influence of mass substructure on strong lensing (2001)

Bradac, M., Schneider, P., Steinmetz, M., Lombardi, M., King, L. J., Porcas, R.

In this work we investigate the gravitationally lensed system B1422+231. High--quality VLBI image positions, fluxes and shapes as well as an optical HST lens galaxy position are used. First, two...

A Diffusion Model for Classical Chaotic Compound Scattering (2000)

Leyvraz, F., Lombardi, M., Seligman, T. H.

We consider the classical map proposed previously to be the exact classical analogue of Rydberg Molecules calculated with the approximations relevant to the multi-channel quantum defect theory. The...

Weak lensing mass reconstruction of MS1008.1-1224 (2000)

Lombardi, M., Rosati, P., Nonino, M., Girardi, M., Borgani, S., Squires, G.

We present an in-depth weak lensing analysis of the cluster MS1008 based on deep multicolor imaging obtained during the Science Verification of FORS1 at the VLT. The image quality (half arcsec...

Multichannel Quantum Defect Theory: a Quantum Poincare Map (1999)

Leyvraz, F., Mendez-Sanchez, R. A., Lombardi, M., Seligman, T. H.

The multichannel quantum defect theory (MQDT) can be reinterpreted as a quantum Poincare map in representation of angular momentum. This has two important implications: we have a paradigm of a true...

ANOMALOUS BEHAVIOUR OF THE ANTICROSSING DENSITY AS A FUNCTION OF EXCITATION ENERGY IN THE C2H2 MOLECULE (1990)

Jost, Remy, Dupré, Patrick, Green, P. G., Lombardi, M., Field, R. W.

$^{1}$ P. Dupre, R. Jost, M. Lombardi, P. G. Green, E. Abramson and R. W. Field, in preparation. $^{2}$ P.P. G. Green, PhD Thesis, MIT (1989). CAMBRIDGE MA (U.S.A.).

STARK AND ZEEMAN SPECTROSCOPY OF ACETYLENE: LOCATING A TRIPLET ISOMERIZATION BARRIER (1990)

Green, P. G., Dupré, Patrick, Lombardi, M., Jost, R., Kinsey, J. L., Field, R. W.

Author Institution: Mail Stop 170-25 Caltech; Service National des Champs Intenses, C.N.R.S.; Weiss School of Natural Sciences, Rice University; Department of Chemistry, Massachusetts Institute of...

QUANTUM BEAT AND ANTICROSSING SPECTROSCOPPY OF ACETYLENE WITH $45.000 cm^{-1}$ OF ENERGY: IMPLICATIONS IN INTERNAL CONVERSION AND INTERSYSTEM CROSSING (1986)

Green, P. G., Field, R. W., Kinsey, J. L., Abramson, E., Shah, N., Lombardi, M., ...

$^{(1)}$ R. L. Sundberg, E. Abranson. J. L. Kinsey, and R. W. Field. J. Chem Phys. 83. 466 (1985) Address of Green, Shah, abramson, Field, and Kinsey: Department of Chemistry. And G. Harrison...

GLYOXAL TRIPLET'S SPECTROSCOPY BY ANTICROSSINGS IN STRONG MAGNETIC FIELD (1984)

Dupré, Patrick, Jost, R., Leviandier, L., Lombardi, M., Pebay-Peyroula, E.

$^{1}$ T.A. MILLER and R.S. FREUND, Magnetic Induced by Electrons in Advances in Magnetic Resonance. Editor J. WILEY and SONS. $^{2}$ P. DUPRE, R. JOST, M. LOMBARDI, to be submitted to Chem. Phys.

ZERO FIELD AND ZEEMAN QUANTUM BEATS IN THE ACETYLENE $\tilde{A} ^{1}A_{u}$ STATE The HCCH (1983)

Lombardi, M., Abramson, E., Field, R. W.

Author Institution: Laboratoire de Spectrom\'{e}trie Physique, Universit\'{e} Scientifique et Medicale de Grenoble; Department of Chemistry, Massachusetts Institute of Technology Cambridge

Détermination des populations relatives des sous-niveaux magnétiques du niveau 41D de HeI excité par impact d'ions lourds (1981)

Carré, M., Zgainski, A., Gaillard, M., Nouh, M., Lombardi, M.

L'étude théorique de la dépolarisation par un champ électrique statique d'une transition émise à partir d'un niveau atomique J = 2 nous a conduit à développer une méthode expérimentale qui...

Détermination des populations relatives des sous-niveaux magnétiques du niveau 41D de HeI excité par impact d'ions lourds (1981)

Carré, M., Zgainski, A., Gaillard, M., Nouh, M., Lombardi, M.

L'étude théorique de la dépolarisation par un champ électrique statique d'une transition émise à partir d'un niveau atomique J = 2 nous a conduit à développer une méthode expérimentale qui...

Détermination des populations relatives des sous-niveaux magnétiques du niveau 41D de HeI excité par impact d'ions lourds (1981)

Carré, M., Zgainski, A., Gaillard, M., Nouh, M., Lombardi, M.

L'étude théorique de la dépolarisation par un champ électrique statique d'une transition émise à partir d'un niveau atomique J = 2 nous a conduit à développer une méthode expérimentale qui...

Forbidden singlet-triplet anticrossings in 3He : precise determination of n1D-n3D (n = 3-6) intervals (1980)

Derouard, J., Lombardi, M., Jost, R.

We have studied narrow anticrossing signals in 3He which have no equivalent in 4He because they are due to the conjonction of fine and hyperfine interactions. High precision results are obtained by...

Forbidden singlet-triplet anticrossings in 3He : precise determination of n1D-n3D (n = 3-6) intervals (1980)

Derouard, J., Lombardi, M., Jost, R.

We have studied narrow anticrossing signals in 3He which have no equivalent in 4He because they are due to the conjonction of fine and hyperfine interactions. High precision results are obtained by...

Forbidden singlet-triplet anticrossings in 3He : precise determination of n1D-n3D (n = 3-6) intervals (1980)

Derouard, J., Lombardi, M., Jost, R.

We have studied narrow anticrossing signals in 3He which have no equivalent in 4He because they are due to the conjonction of fine and hyperfine interactions. High precision results are obtained by...

ANTICROISEMENT SINGULET-TRIPLET OU DOUBLET-QUADRUPLET DANS LES MOLÉCULES DIATOMIQUES LÉGÈRES (1978)

Jost, R., Lombardi, M.

Le but de cet article est de présenter une nouvelle variante d'anticroisement et de la comparer aux autres méthodes qui permettent de déterminer la position relative des niveaux de multiplicité...

Pompage électronique du niveau fondamental du 21Ne étude du transfert d'alignement, rôle de la diffusion multiple (1978)

Stoeckel, F., Lombardi, M.

Nous étudions le cycle de pompage électronique du niveau fondamental du 21Ne. Nous montrons comment dans une cellule remplie de néon à une pression de 10-4 à 10-2 torr, une décharge haute...

ANTICROISEMENT SINGULET-TRIPLET OU DOUBLET-QUADRUPLET DANS LES MOLÉCULES DIATOMIQUES LÉGÈRES (1978)

Jost, R., Lombardi, M.

Le but de cet article est de présenter une nouvelle variante d'anticroisement et de la comparer aux autres méthodes qui permettent de déterminer la position relative des niveaux de multiplicité...

Pompage électronique du niveau fondamental du 21Ne étude du transfert d'alignement, rôle de la diffusion multiple (1978)

Stoeckel, F., Lombardi, M.

Nous étudions le cycle de pompage électronique du niveau fondamental du 21Ne. Nous montrons comment dans une cellule remplie de néon à une pression de 10-4 à 10-2 torr, une décharge haute...

ANTICROISEMENT SINGULET-TRIPLET OU DOUBLET-QUADRUPLET DANS LES MOLÉCULES DIATOMIQUES LÉGÈRES (1978)

Jost, R., Lombardi, M.

Le but de cet article est de présenter une nouvelle variante d'anticroisement et de la comparer aux autres méthodes qui permettent de déterminer la position relative des niveaux de multiplicité...

Pompage électronique du niveau fondamental du 21Ne étude du transfert d'alignement, rôle de la diffusion multiple (1978)

Stoeckel, F., Lombardi, M.

Nous étudions le cycle de pompage électronique du niveau fondamental du 21Ne. Nous montrons comment dans une cellule remplie de néon à une pression de 10-4 à 10-2 torr, une décharge haute...

Étude de la relaxation des niveaux de l'hélium excités par impact d'ions lourds : - I. — Relaxation de l'alignement de niveaux non résonnants de HeI (1977)

Carré, M., Gaillard, M.L., Lombardi, M.

The zero field level crossing technique has been used for the study of the 41D and 31 D levels of helium as excited by impact of Li+ and Na+ ions in a helium gas target in the energy range 20 to 150...

Étude de la relaxation des niveaux de l'hélium excités par impact d'ions lourds : - II. — Relaxation du niveau de résonance 3 1P de HeI (1977)

Carré, M., Lombardi, M.

Anisotropic recoil of atoms excited by ionic impact, pointed out in the first article, modifies considerably the multiple scattering phenomena which affect the relaxation of resonance levels. In...

Étude de la relaxation des niveaux de l'hélium excités par impact d'ions lourds : - III. — Orientation par relaxation anisotrope d'atomes excités dans des états initialement alignés (1977)

Chamoun, E., Lombardi, M., Carré, M., Gaillard, M.L.

Dans cet article, le dernier de cette série consacrée aux phénomènes de relaxation observés dans une cellule d'Hélium basse pression excité par un faisceau d'ions accélérés, nous...

I.Theory of the relaxation by collision of molecular multipole moments : impact approximation with long range electrostatic interactions (1977)

Mélières-Maréchal, M.A., Lombardi, M.

A theoretical treatment of the relaxation and transfer of molecular multipole moments due to intermolecular collisions is presented assuming the impact approximation. General expressions for the...

II. Depolarization cross-section of the (1s 3p) 3II u (N = 1) level H*2 due to electrostatic long range interactions (1977)

Lombardi, M.

The depolarization cross-section of the (Is 3p) 3IIu (v = 0, N = 1, I = 0) level of H*2 in H*2-H 2 collision is found to be 160 Å2, when only the long range electrostatic interactions are...

Étude de la relaxation des niveaux de l'hélium excités par impact d'ions lourds : - I. — Relaxation de l'alignement de niveaux non résonnants de HeI (1977)

Carré, M., Gaillard, M.L., Lombardi, M.

The zero field level crossing technique has been used for the study of the 41D and 31 D levels of helium as excited by impact of Li+ and Na+ ions in a helium gas target in the energy range 20 to 150...

Étude de la relaxation des niveaux de l'hélium excités par impact d'ions lourds : - II. — Relaxation du niveau de résonance 3 1P de HeI (1977)

Carré, M., Lombardi, M.

Anisotropic recoil of atoms excited by ionic impact, pointed out in the first article, modifies considerably the multiple scattering phenomena which affect the relaxation of resonance levels. In...

Étude de la relaxation des niveaux de l'hélium excités par impact d'ions lourds : - III. — Orientation par relaxation anisotrope d'atomes excités dans des états initialement alignés (1977)

Chamoun, E., Lombardi, M., Carré, M., Gaillard, M.L.

Dans cet article, le dernier de cette série consacrée aux phénomènes de relaxation observés dans une cellule d'Hélium basse pression excité par un faisceau d'ions accélérés, nous...

I.Theory of the relaxation by collision of molecular multipole moments : impact approximation with long range electrostatic interactions (1977)

Mélières-Maréchal, M.A., Lombardi, M.

A theoretical treatment of the relaxation and transfer of molecular multipole moments due to intermolecular collisions is presented assuming the impact approximation. General expressions for the...

II. Depolarization cross-section of the (1s 3p) 3II u (N = 1) level H*2 due to electrostatic long range interactions (1977)

Lombardi, M.

The depolarization cross-section of the (Is 3p) 3IIu (v = 0, N = 1, I = 0) level of H*2 in H*2-H 2 collision is found to be 160 Å2, when only the long range electrostatic interactions are...

Étude de la relaxation des niveaux de l'hélium excités par impact d'ions lourds : - I. — Relaxation de l'alignement de niveaux non résonnants de HeI (1977)

Carré, M., Gaillard, M.L., Lombardi, M.

The zero field level crossing technique has been used for the study of the 41D and 31 D levels of helium as excited by impact of Li+ and Na+ ions in a helium gas target in the energy range 20 to 150...

Étude de la relaxation des niveaux de l'hélium excités par impact d'ions lourds : - II. — Relaxation du niveau de résonance 3 1P de HeI (1977)

Carré, M., Lombardi, M.

Anisotropic recoil of atoms excited by ionic impact, pointed out in the first article, modifies considerably the multiple scattering phenomena which affect the relaxation of resonance levels. In...

Étude de la relaxation des niveaux de l'hélium excités par impact d'ions lourds : - III. — Orientation par relaxation anisotrope d'atomes excités dans des états initialement alignés (1977)

Chamoun, E., Lombardi, M., Carré, M., Gaillard, M.L.

Dans cet article, le dernier de cette série consacrée aux phénomènes de relaxation observés dans une cellule d'Hélium basse pression excité par un faisceau d'ions accélérés, nous...

I.Theory of the relaxation by collision of molecular multipole moments : impact approximation with long range electrostatic interactions (1977)

Mélières-Maréchal, M.A., Lombardi, M.

A theoretical treatment of the relaxation and transfer of molecular multipole moments due to intermolecular collisions is presented assuming the impact approximation. General expressions for the...