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1,339 results on '"Petit, Franck"'

102. FUSE Observations towards HD 34078 Detection of highly excited H2 and HD

Author

Petit, Franck Le, Boisse, Patrick, Forets, Guillaume Pineau des, Roueff, Evelyne, Gry, Cecile, Andersson, B-G, and Brun, Vincent Le

Subjects
Astrophysics
Abstract

We present FUSE observations of the extincted O9.5 star, HD 34078. The 19 first levels of H2 are detected (i.e. from J=0 to v=1, J=5) as well as HD in its two first levels. The excitation of H2 up to J=7 can be explained using a combination of Photon Dominated Region (PDR) and MHD shock models. However, understanding the large amount of H2 found in higher excitation states seems to require more energetic processes that have yet to be identified., Comment: Values of column densities in the table have been corrected

Published
2001

103. Small scale structure in diffuse molecular gas from repeated FUSE and visible spectra of HD 34078

Author

Boisse, Patrick, Rollinde, Emmanuel, Petit, Franck Le, Forets, Guillaume Pineau des, Roueff, Evelyne, Gry, Cecile, Andersson, B-G, and Brun, Vincent Le

Subjects
Astrophysics
Abstract

We present preliminary results from an ongoing program devoted to a study of small scale structure in the spatial distribution of molecular gas. Our work is based on multi-epoch FUSE and visible observations of HD34078. A detailed comparison of H2, CH and CH+ absorption lines is performed. No short term variations are seen (except for highly excited H2) but long-term changes in N(CH) are clearly detected when comparing our data to spectra taken about 10 years ago., Comment: 4 pages, 2 figures, To appear in the Proceedings of the XVII IAP Colloquium "Gaseous Matter in Galaxies and Intergalactic Space"

Published
2001

104. Revealing which Combinations of Molecular Lines are Sensitive to the Gas Physical Parameters of Molecular Clouds

Author

Pety Jérôme, Gerin Maryvonne, Bron Emeric, Gratier Pierre, Orkisz Jan H., Palud Pierre, Roueff Antoine, Einig Lucas, Santa-Maria Miriam G., de Souza Magalhaes Victor, Bardeau Sébastien, Chanussot Jocelyn, Chainais Pierre, Goicoechea Javier R., Guzman Viviana V., Hughes Annie, Kainulainen Jouni, Languignon David, Levrier François, Lis Darek, Liszt Harvey S., Le Bourlot Jacques, Le Petit Franck, Oberg Karin, Peretto Nicolas, Roueff Evelyne, Sievers Albrecht, Thouvenin Pierre-Antoine, and Tremblin Pascal

Subjects
Physics, QC1-999
Abstract

Atoms and molecules have long been thought to be versatile tracers of the cold neutral gas in the universe, from high-redshift galaxies to star forming regions and proto-planetary disks, because their internal degrees of freedom bear the signature of the physical conditions where these species reside. However, the promise that molecular emission has a strong diagnostic power of the underlying physical and chemical state is still hampered by the difficulty to combine sophisticated chemical codes with gas dynamics. It is therefore important 1) to acquire self-consistent data sets that can be used as templates for this theoretical work, and 2) to reveal the diagnostic capabilities of molecular lines accurately. The advent of sensitive wideband spectrometers in the (sub)- millimeter domain (e.g., IRAM-30m/EMIR, NOEMA, …) during the 2010s has allowed us to image a significant fraction of a Giant Molecular Cloud with enough sensitivity to detect tens of molecular lines in the 70 – 116 GHz frequency range. Machine learning techniques applied to these data start to deliver the next generation of molecular line diagnostics of mass, density, temperature, and radiation field.

Published
2022
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105. Learning from model grids: Tracers of the ionization fraction in the ISM

Author

Bron Emeric, Roueff Evelyne, Gerin Maryvonne, Pety Jérôme, Gratier Pierre, Le Petit Franck, Guzman Viviana, Orkisz Jan, de Souza Magalhaes Victor, Gaudel Mathilde, Palud Pierre, Einig Lucas, Bardeau Sébastien, Chainais Pierre, Chanussot Jocelyn, Goicoechea Javier, Hughes Annie, Kainulainen Jouni, Languignon David, Le Bourlot Jacques, Levrier François, Lis Darek, Liszt Harvey, Öberg Karin, Peretto Nicolas, Roueff Antoine, Sievers Albrecht, Thouvenin Pierre-Antoine, and Tremblin Pascal

Subjects
Physics, QC1-999
Abstract

The ionization fraction in neutral interstellar clouds is a key physical parameter controlling multiple physical and chemical processes, and varying by orders of magnitude from the UV irradiated surface of the cloud to its cosmic-ray dominated central regions. Traditional observational tracers of the ionization fraction, which mostly rely on deuteration ratios of molecules like HCO+, suffer from the fact that the deuterated molecules are only detected in a tiny fraction of a given Giant Molecular Cloud (GMC). In [1], we propose a machine learning-based, semi-automatic method to search in a large dataset of astrochemical model results for new tracers of the ionization fraction, and propose several new tracers relevant in different ranges of physical conditions.

Published
2022
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107. Gradual Stabilization Under -Dynamics

Author

Altisen, Karine, Devismes, Stéphane, Durand, Anaïs, Petit, Franck, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Dutot, Pierre-François, editor, and Trystram, Denis, editor

Published
2016
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108. Dynamics of particulate organic matter composition in coastal systems: A spatio-temporal study at multi-systems scale

Author

Liénart, Camilla, Savoye, Nicolas, Bozec, Yann, Breton, Elsa, Conan, Pascal, David, Valérie, Feunteun, Eric, Grangeré, Karine, Kerhervé, Philippe, Lebreton, Benoît, Lefebvre, Sébastien, L'Helguen, Stéphane, Mousseau, Laure, Raimbault, Patrick, Richard, Pierre, Riera, Pascal, Sauriau, Pierre-Guy, Schaal, Gauthier, Aubert, Fabien, Aubin, Sébastien, Bichon, Sabrina, Boinet, Christophe, Bourasseau, Line, Bréret, Martine, Caparros, Jocelyne, Cariou, Thierry, Charlier, Karine, Claquin, Pascal, Cornille, Vincent, Corre, Anne-Marie, Costes, Laurence, Crispi, Olivier, Crouvoisier, Muriel, Czamanski, Marie, Del Amo, Yolanda, Derriennic, Hervé, Dindinaud, François, Durozier, Maïa, Hanquiez, Vincent, Nowaczyk, Antoine, Devesa, Jérémy, Ferreira, Sophie, Fornier, Michel, Garcia, Fabrice, Garcia, Nicole, Geslin, Sandrine, Grossteffan, Emilie, Gueux, Aurore, Guillaudeau, Julien, Guillou, Gaël, Joly, Orianne, Lachaussée, Nicolas, Lafont, Michel, Lamoureux, Jézabel, Lecuyer, Eric, Lehodey, Jean-Paul, Lemeille, David, Leroux, Cédric, Macé, Eric, Maria, Eric, Pineau, Philippe, Petit, Franck, Pujo-Pay, Mireille, Rimelin-Maury, Peggy, and Sultan, Emmanuelle

Published
2017
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110. Understanding the temperatures of H3+ and H2 in diffuse interstellar sightlines.

Author

Le Bourlot, Jacques, Roueff, Evelyne, Le Petit, Franck, Kehrein, Florian, Oetjens, Annika, and Kreckel, Holger

Subjects
INTERSTELLAR medium, RADIATIVE transitions, TEMPERATURE, LOW temperatures, MOLECULAR clouds
Abstract

The triatomic hydrogen ion $ \mathrm {H}_3^+ $ H 3 + is one of the most important species for the gas phase chemistry of the interstellar medium. Observations of $ \mathrm {H}_3^+ $ H 3 + are used to constrain important physical and chemical parameters of interstellar environments. However, the temperatures inferred from the two lowest rotational states of $ \mathrm {H}_3^+ $ H 3 + in diffuse lines of sight – typically the only ones observable – appear consistently lower than the temperatures derived from H $ _2 $ 2 observations in the same sightlines. All previous attempts at modelling the temperatures of $ \mathrm {H}_3^+ $ H 3 + in the diffuse interstellar medium failed to reproduce the observational results. Here we present new studies, comparing an independent master equation for H $ _3^+ $ 3 + level populations to results from the Meudon PDR code for photon dominated regions. We show that the populations of the lowest rotational states of $ \mathrm {H}_3^+ $ H 3 + are strongly affected by the formation reaction and that H $ _3^+ $ 3 + ions experience incomplete thermalisation before their destruction by free electrons. Furthermore, we find that for quantitative analysis more than two levels of H $ _3^+ $ 3 + have to be considered and that it is crucial to include radiative transitions as well as collisions with H2. Our models of typical diffuse interstellar sightlines show very good agreement with observational data, and thus they may finally resolve the perceived temperature difference attributed to these two fundamental species. [ABSTRACT FROM AUTHOR]

Published
2024
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112. L'employeur peut-il voter pour choisir le représentant en justice du CHSCT ?

Author

Petit, Franck, Aix Marseille Université (AMU), Centre de Droit Social (CDS), and collaboration or project value

Subjects
Droit Social et Societes, Consultation, Représentation en justice, [SHS.DROIT]Humanities and Social Sciences/Law, Expertise, Comité d'hygiène, de sécurité et des conditions de travail
Abstract

International audience; Note sous Cour de cassation (soc.), 19 octobre 2022, no 21-18.705 (F-B)

Published
2023

113. PDRs4All: A JWST Early Release Science Program on Radiative Feedback from Massive Stars

Author

National Aeronautics and Space Administration (US), University of Maryland, University of Michigan, University of Toledo, Centre National de la Recherche Scientifique (France), Centre National D'Etudes Spatiales (France), Natural Sciences and Engineering Research Council of Canada, Ministerio de Ciencia e Innovación (España), German Research Foundation, Japan Society for the Promotion of Science, San Jose State University Research Foundation, Berné, Olivier [0000-0002-1686-8395], Habart, Émilie [0000-0001-9136-8043], Peeters, Els [0000-0002-2541-1602], Abergel, Alain [0000-0003-2364-2260], Bergin, Edwin A. [0000-0003-4179-6394], Bernard-Salas, Jeronimo [0000-0002-8452-8675], Bron, Emeric [0000-0003-1532-7818], Cami, Jan [0000-0002-2666-9234], Dartois, Emmanuel [0000-0003-1197-7143], Fuente, Asunción [0000-0001-6317-6343], Goicoechea, Javier R. [0000-0001-7046-4319], Gordon, Karl D. [0000-0001-5340-6774], Okada, Yoko [0000-0002-6838-6435], Onaka, Takashi [0000-0002-8234-6747], Robberto, Massimo [0000-0002-9573-3199], Röllig, Markus [0000-0001-6205-2242], Tielens, Alexander G.G.M. [0000-0003-0306-0028], Vicente, Sílvia [0000-0001-8973-0752], Wolfire, Mark G. [0000-0003-0030-9510], Alarcón, Felipe [0000-0002-2692-7862], Boersma, C. [0000-0002-4836-217X], Canin, Amélie [0000-0002-7830-6363], Chown, Ryan [0000-0001-8241-7704], Dicken, Daniel [0000-0003-0589-5969], Le Gal, Romane [0000-0003-1837-3772], Pound, Marc W. [0000-0002-7269-342X], Trahin, Boris [0000-0001-5875-5340], Sidhu, Ameek [0000-0003-3771-4990], Van De Putte, Dries [0000-0002-5895-8268], Cuadrado, Sara [0000-0002-7393-1813], Guilloteau, Claire [0000-0001-5800-9647], Maragkoudakis, Alexandros [0000-0003-2552-3871], Schefter, Bethany R. [0000-0001-5080-8030], Schirmer, Thiébaut [0000-0002-8086-4890], Aleman, Isabel [0000-0002-7989-9041], Allamandola, Louis [0000-0002-6049-4079], Auchettl, Rebecca [0000-0001-9296-0751], Antonio Baratta, Giuseppe [0000-0002-3688-160X], Bejaoui, Salma [0000-0001-8646-9464], Bera, Partha P. [0000-0003-0843-3209], Bilalbegović, Goranka [0000-0002-1058-6610], Black, John H. [0000-0001-7221-7207], Boulanger, Francois [0000-0003-1097-6042], Bouwman, Jordy [0000-0002-3615-1703], Brandl, Bernhard [0000-0001-9737-169X], Brünken, Sandra [0000-0001-7175-4828], Burkhardt, Andrew [0000-0003-0799-0927], Candian, Alessandra [0000-0002-5431-4449], Cernicharo, José [0000-0002-3518-2524], Chakraborty, Shubhadip [0000-0002-2982-6450], Champion, Jason [0000-0002-9256-8917], Colgan, Sean W.J. [0000-0001-6275-7437], Cooke, Ilsa R. [0000-0002-0850-7426], Coutens, Audrey [0000-0003-1805-3920], Cox, Nick L.J. [0000-0002-7926-4492], Demyk, Karine [0000-0002-5019-8700], Donovan Meyer, Jennifer [0000-0002-3106-7676], Engrand, Cécile [0000-0002-0396-5583], Foschino, Sacha [0000-0003-2455-2355], Gavilan, Lisseth [0000-0001-8645-8415], Gerin, Maryvonne [0000-0002-2418-7952], Godard, Marie [0000-0002-7276-4021], Gottlieb, Carl A. [0000-0003-2845-5317], Guillard, Pierre [0000-0002-2421-1350], Gusdorf, Antoine [0000-0002-0354-1684], Hartigan, Patrick [0000-0002-5380-549X], He, Jinhua [0000-0002-3938-4393], Herbst, Eric [0000-0002-4649-2536], Hornekaer, Liv [0000-0003-0828-3642], Janot-Pacheco, Eduardo [0000-0003-0079-3912], Joblin, Christine [0000-0003-1561-6118], Kaufman, Michael [0000-0002-2521-1985], Kemper, Francisca [0000-0003-2743-8240], Kendrew, Sarah [0000-0002-7612-0469], Kirsanova, Maria S. [0000-0003-4338-9055], Klaassen, Pamela [0000-0001-9443-0463], Knight, Collin [0000-0003-2968-3522], Kwok, Sun [0000-0001-7708-081X], Labiano, Álvaro [0000-0002-0690-8824], Lai, Thomas S.Y. [0000-0001-8490-6632], Lee, Timothy J. [0000-0002-2598-2237], Lefloch, Bertrand [0000-0002-9397-3826], Le Petit, Franck [0000-0001-8738-6724], Li, Aigen [0000-0002-1119-642X], Linz, Hendrik [0000-0002-8115-8437], MacKie, Cameron J. [0000-0003-2885-2021], Madden, Suzanne C. [0000-0003-3229-2899], Mascetti, Joëlle [0000-0002-8585-9118], McGuire, Brett A. [0000-0003-1254-4817], Merino, Pablo [0000-0002-0267-4020], Micelotta, Elisabetta R. [0000-0002-6555-5109], Morse, Jon A. [0000-0001-5895-2256], Berné, Olivier, Habart, Émilie, Peeters, Els, Abergel, Alain, Bergin, Edwin A., Bernard-Salas, Jeronimo, Bron, Emeric, Cami, Jan, Dartois, Emmanuel, Fuente, Asunción, Goicoechea, Javier R., Gordon, Karl D., Okada, Yoko, Onaka, Takashi, Robberto, Massimo, Röllig, Markus, Tielens, Alexander G.G.M., Vicente, Sílvia, Wolfire, Mark G., Alarcón, Felipe, Boersma, C., Canin, Amélie, Chown, Ryan, Dicken, Daniel, Languignon, David, Le Gal, Romane, Pound, Marc W., Trahin, Boris, Simmer, Thomas, Sidhu, Ameek, Van De Putte, Dries, Cuadrado, Sara, Guilloteau, Claire, Maragkoudakis, Alexandros, Schefter, Bethany R., Schirmer, Thiébaut, Cazaux, Stéphanie, Aleman, Isabel, Allamandola, Louis, Auchettl, Rebecca, Antonio Baratta, Giuseppe, Bejaoui, Salma, Bera, Partha P., Bilalbegović, Goranka, Black, John H., Boulanger, Francois, Bouwman, Jordy, Brandl, Bernhard, Brechignac, Philippe, Brünken, Sandra, Burkhardt, Andrew, Candian, Alessandra, Cernicharo, José, Chabot, Marin, Chakraborty, Shubhadip, Champion, Jason, Colgan, Sean W.J., Cooke, Ilsa R., Coutens, Audrey, Cox, Nick L.J., Demyk, Karine, Donovan Meyer, Jennifer, Engrand, Cécile, Foschino, Sacha, García-Lario, Pedro, Gavilan, Lisseth, Gerin, Maryvonne, Godard, Marie, Gottlieb, Carl A., Guillard, Pierre, Gusdorf, Antoine, Hartigan, Patrick, He, Jinhua, Herbst, Eric, Hornekaer, Liv, Jäger, Cornelia, Janot-Pacheco, Eduardo, Joblin, Christine, Kaufman, Michael, Kemper, Francisca, Kendrew, Sarah, Kirsanova, Maria S., Klaassen, Pamela, Knight, Collin, Kwok, Sun, Labiano, Álvaro, Lai, Thomas S.Y., Lee, Timothy J., Lefloch, Bertrand, Le Petit, Franck, Li, Aigen, Linz, Hendrik, MacKie, Cameron J., Madden, Suzanne C., Mascetti, Joëlle, McGuire, Brett A., Merino, Pablo, Micelotta, Elisabetta R., Misselt, Karl, Morse, Jon A., National Aeronautics and Space Administration (US), University of Maryland, University of Michigan, University of Toledo, Centre National de la Recherche Scientifique (France), Centre National D'Etudes Spatiales (France), Natural Sciences and Engineering Research Council of Canada, Ministerio de Ciencia e Innovación (España), German Research Foundation, Japan Society for the Promotion of Science, San Jose State University Research Foundation, Berné, Olivier [0000-0002-1686-8395], Habart, Émilie [0000-0001-9136-8043], Peeters, Els [0000-0002-2541-1602], Abergel, Alain [0000-0003-2364-2260], Bergin, Edwin A. [0000-0003-4179-6394], Bernard-Salas, Jeronimo [0000-0002-8452-8675], Bron, Emeric [0000-0003-1532-7818], Cami, Jan [0000-0002-2666-9234], Dartois, Emmanuel [0000-0003-1197-7143], Fuente, Asunción [0000-0001-6317-6343], Goicoechea, Javier R. [0000-0001-7046-4319], Gordon, Karl D. [0000-0001-5340-6774], Okada, Yoko [0000-0002-6838-6435], Onaka, Takashi [0000-0002-8234-6747], Robberto, Massimo [0000-0002-9573-3199], Röllig, Markus [0000-0001-6205-2242], Tielens, Alexander G.G.M. [0000-0003-0306-0028], Vicente, Sílvia [0000-0001-8973-0752], Wolfire, Mark G. [0000-0003-0030-9510], Alarcón, Felipe [0000-0002-2692-7862], Boersma, C. [0000-0002-4836-217X], Canin, Amélie [0000-0002-7830-6363], Chown, Ryan [0000-0001-8241-7704], Dicken, Daniel [0000-0003-0589-5969], Le Gal, Romane [0000-0003-1837-3772], Pound, Marc W. [0000-0002-7269-342X], Trahin, Boris [0000-0001-5875-5340], Sidhu, Ameek [0000-0003-3771-4990], Van De Putte, Dries [0000-0002-5895-8268], Cuadrado, Sara [0000-0002-7393-1813], Guilloteau, Claire [0000-0001-5800-9647], Maragkoudakis, Alexandros [0000-0003-2552-3871], Schefter, Bethany R. [0000-0001-5080-8030], Schirmer, Thiébaut [0000-0002-8086-4890], Aleman, Isabel [0000-0002-7989-9041], Allamandola, Louis [0000-0002-6049-4079], Auchettl, Rebecca [0000-0001-9296-0751], Antonio Baratta, Giuseppe [0000-0002-3688-160X], Bejaoui, Salma [0000-0001-8646-9464], Bera, Partha P. [0000-0003-0843-3209], Bilalbegović, Goranka [0000-0002-1058-6610], Black, John H. [0000-0001-7221-7207], Boulanger, Francois [0000-0003-1097-6042], Bouwman, Jordy [0000-0002-3615-1703], Brandl, Bernhard [0000-0001-9737-169X], Brünken, Sandra [0000-0001-7175-4828], Burkhardt, Andrew [0000-0003-0799-0927], Candian, Alessandra [0000-0002-5431-4449], Cernicharo, José [0000-0002-3518-2524], Chakraborty, Shubhadip [0000-0002-2982-6450], Champion, Jason [0000-0002-9256-8917], Colgan, Sean W.J. [0000-0001-6275-7437], Cooke, Ilsa R. [0000-0002-0850-7426], Coutens, Audrey [0000-0003-1805-3920], Cox, Nick L.J. [0000-0002-7926-4492], Demyk, Karine [0000-0002-5019-8700], Donovan Meyer, Jennifer [0000-0002-3106-7676], Engrand, Cécile [0000-0002-0396-5583], Foschino, Sacha [0000-0003-2455-2355], Gavilan, Lisseth [0000-0001-8645-8415], Gerin, Maryvonne [0000-0002-2418-7952], Godard, Marie [0000-0002-7276-4021], Gottlieb, Carl A. [0000-0003-2845-5317], Guillard, Pierre [0000-0002-2421-1350], Gusdorf, Antoine [0000-0002-0354-1684], Hartigan, Patrick [0000-0002-5380-549X], He, Jinhua [0000-0002-3938-4393], Herbst, Eric [0000-0002-4649-2536], Hornekaer, Liv [0000-0003-0828-3642], Janot-Pacheco, Eduardo [0000-0003-0079-3912], Joblin, Christine [0000-0003-1561-6118], Kaufman, Michael [0000-0002-2521-1985], Kemper, Francisca [0000-0003-2743-8240], Kendrew, Sarah [0000-0002-7612-0469], Kirsanova, Maria S. [0000-0003-4338-9055], Klaassen, Pamela [0000-0001-9443-0463], Knight, Collin [0000-0003-2968-3522], Kwok, Sun [0000-0001-7708-081X], Labiano, Álvaro [0000-0002-0690-8824], Lai, Thomas S.Y. [0000-0001-8490-6632], Lee, Timothy J. [0000-0002-2598-2237], Lefloch, Bertrand [0000-0002-9397-3826], Le Petit, Franck [0000-0001-8738-6724], Li, Aigen [0000-0002-1119-642X], Linz, Hendrik [0000-0002-8115-8437], MacKie, Cameron J. [0000-0003-2885-2021], Madden, Suzanne C. [0000-0003-3229-2899], Mascetti, Joëlle [0000-0002-8585-9118], McGuire, Brett A. [0000-0003-1254-4817], Merino, Pablo [0000-0002-0267-4020], Micelotta, Elisabetta R. [0000-0002-6555-5109], Morse, Jon A. [0000-0001-5895-2256], Berné, Olivier, Habart, Émilie, Peeters, Els, Abergel, Alain, Bergin, Edwin A., Bernard-Salas, Jeronimo, Bron, Emeric, Cami, Jan, Dartois, Emmanuel, Fuente, Asunción, Goicoechea, Javier R., Gordon, Karl D., Okada, Yoko, Onaka, Takashi, Robberto, Massimo, Röllig, Markus, Tielens, Alexander G.G.M., Vicente, Sílvia, Wolfire, Mark G., Alarcón, Felipe, Boersma, C., Canin, Amélie, Chown, Ryan, Dicken, Daniel, Languignon, David, Le Gal, Romane, Pound, Marc W., Trahin, Boris, Simmer, Thomas, Sidhu, Ameek, Van De Putte, Dries, Cuadrado, Sara, Guilloteau, Claire, Maragkoudakis, Alexandros, Schefter, Bethany R., Schirmer, Thiébaut, Cazaux, Stéphanie, Aleman, Isabel, Allamandola, Louis, Auchettl, Rebecca, Antonio Baratta, Giuseppe, Bejaoui, Salma, Bera, Partha P., Bilalbegović, Goranka, Black, John H., Boulanger, Francois, Bouwman, Jordy, Brandl, Bernhard, Brechignac, Philippe, Brünken, Sandra, Burkhardt, Andrew, Candian, Alessandra, Cernicharo, José, Chabot, Marin, Chakraborty, Shubhadip, Champion, Jason, Colgan, Sean W.J., Cooke, Ilsa R., Coutens, Audrey, Cox, Nick L.J., Demyk, Karine, Donovan Meyer, Jennifer, Engrand, Cécile, Foschino, Sacha, García-Lario, Pedro, Gavilan, Lisseth, Gerin, Maryvonne, Godard, Marie, Gottlieb, Carl A., Guillard, Pierre, Gusdorf, Antoine, Hartigan, Patrick, He, Jinhua, Herbst, Eric, Hornekaer, Liv, Jäger, Cornelia, Janot-Pacheco, Eduardo, Joblin, Christine, Kaufman, Michael, Kemper, Francisca, Kendrew, Sarah, Kirsanova, Maria S., Klaassen, Pamela, Knight, Collin, Kwok, Sun, Labiano, Álvaro, Lai, Thomas S.Y., Lee, Timothy J., Lefloch, Bertrand, Le Petit, Franck, Li, Aigen, Linz, Hendrik, MacKie, Cameron J., Madden, Suzanne C., Mascetti, Joëlle, McGuire, Brett A., Merino, Pablo, Micelotta, Elisabetta R., Misselt, Karl, and Morse, Jon A.

Abstract

Massive stars disrupt their natal molecular cloud material through radiative and mechanical feedback processes. These processes have profound effects on the evolution of interstellar matter in our Galaxy and throughout the universe, from the era of vigorous star formation at redshifts of 1-3 to the present day. The dominant feedback processes can be probed by observations of the Photo-Dissociation Regions (PDRs) where the far-ultraviolet photons of massive stars create warm regions of gas and dust in the neutral atomic and molecular gas. PDR emission provides a unique tool to study in detail the physical and chemical processes that are relevant for most of the mass in inter-and circumstellar media including diffuse clouds, proto-planetary disks, and molecular cloud surfaces, globules, planetary nebulae, and star-forming regions. PDR emission dominates the infrared (IR) spectra of star-forming galaxies. Most of the Galactic and extragalactic observations obtained with the James Webb Space Telescope (JWST) will therefore arise in PDR emission. In this paper we present an Early Release Science program using the MIRI, NIRSpec, and NIRCam instruments dedicated to the observations of an emblematic and nearby PDR: the Orion Bar. These early JWST observations will provide template data sets designed to identify key PDR characteristics in JWST observations. These data will serve to benchmark PDR models and extend them into the JWST era. We also present the Science-Enabling products that we will provide to the community. These template data sets and Science-Enabling products will guide the preparation of future proposals on star-forming regions in our Galaxy and beyond and will facilitate data analysis and interpretation of forthcoming JWST observations.

Published
2022

114. Optimal Torus Exploration by Oblivious Robots

Author

Devismes, Stéphane, Lamani, Anissa, Petit, Franck, Tixeuil, Sébastien, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Bouajjani, Ahmed, editor, and Fauconnier, Hugues, editor

Published
2015
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115. Data quality control considerations in multivariate environmental monitoring: experience of the French coastal network SOMLIT

Author

Breton, Elsa, primary, Savoye, Nicolas, additional, Rimmelin-Maury, Peggy, additional, Sautour, Benoit, additional, Goberville, Eric, additional, Lheureux, Arnaud, additional, Cariou, Thierry, additional, Ferreira, Sophie, additional, Agogué, Hélène, additional, Alliouane, Samir, additional, Aubert, Fabien, additional, Aubin, Sébastien, additional, Berthebaud, Eric, additional, Blayac, Hadrien, additional, Blondel, Lucie, additional, Boulart, Cédric, additional, Bozec, Yann, additional, Bureau, Sarah, additional, Caillo, Arnaud, additional, Cauvin, Arnaud, additional, Cazes, Jean-Baptiste, additional, Chasselin, Léo, additional, Claquin, Pascal, additional, Conan, Pascal, additional, Cordier, Marie-Ange, additional, Costes, Laurence, additional, Crec’hriou, Romain, additional, Crispi, Olivier, additional, Crouvoisier, Muriel, additional, David, Valérie, additional, Del Amo, Yolanda, additional, De Lary, Hortense, additional, Delebecq, Gaspard, additional, Devesa, Jeremy, additional, Domeau, Aurélien, additional, Durozier, Maria, additional, Emery, Claire, additional, Feunteun, Eric, additional, Fauchot, Juliette, additional, Gentilhomme, Valérie, additional, Geslin, Sandrine, additional, Giraud, Mélanie, additional, Grangeré, Karine, additional, Grégori, Gerald, additional, Grossteffan, Emilie, additional, Gueux, Aurore, additional, Guillaudeau, Julien, additional, Guillou, Gael, additional, Harrewyn, Manon, additional, Jolly, Orianne, additional, Jude-Lemeilleur, Florence, additional, Labatut, Paul, additional, Labourdette, Nathalie, additional, Lachaussée, Nicolas, additional, Lafont, Michel, additional, Lagadec, Veronique, additional, Lambert, Christophe, additional, Lamoureux, Jezebel, additional, Lanceleur, Laurent, additional, Lebreton, Benoit, additional, Lecuyer, Eric, additional, Lemeille, David, additional, Leredde, Yann, additional, Leroux, Cédric, additional, Leynaert, Aude, additional, L’Helguen, Stéphane, additional, Liénart, Camilla, additional, Macé, Eric, additional, Maria, Eric, additional, Marie, Barbara, additional, Marie, Dominique, additional, Mas, Sébastien, additional, Mendes, Fabrice, additional, Mornet, Line, additional, Mostajir, Behzad, additional, Mousseau, Laure, additional, Nowaczyk, Antoine, additional, Nunige, Sandra, additional, Parra, René, additional, Paulin, Thomas, additional, Pecqueur, David, additional, Petit, Franck, additional, Pineau, Philippe, additional, Raimbault, Patrick, additional, Rigaut-Jalabert, Fabienne, additional, Salmeron, Christophe, additional, Salter, Ian, additional, Sauriau, Pierre-Guy, additional, Seuront, Laurent, additional, Sultan, Emmanuelle, additional, Valdès, Rémi, additional, Vantrepotte, Vincent, additional, Vidussi, Francesca, additional, Voron, Florian, additional, Vuillemin, Renaud, additional, Zudaire, Laurent., additional, and Garcia, Nicole, additional

Published
2023
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117. Data quality control considerations in multivariate environmental monitoring: experience of the French coastal network SOMLIT

Author

Breton, Elsa, Savoye, Nicolas, Rimmelin-maury, Peggy, Sautour, Benoit, Goberville, Eric, Lheureux, Arnaud, Cariou, Thierry, Ferreira, Sophie, Agogué, Hélène, Alliouane, Samir, Aubert, Fabien, Aubin, Sébastien, Berthebaud, Eric, Blayac, Hadrien, Blondel, Lucie, Boulart, Cedric, Bozec, Yann, Bureau, Sarah, Caillo, Arnaud, Cauvin, Arnaud, Cazes, Jean-baptiste, Chasselin, Leo, Claquin, Pascal, Conan, Pascal, Cordier, Marie-ange, Costes, Laurence, Crec’hriou, Romain, Crispi, Olivier, Crouvoisier, Muriel, David, Valérie, Del Amo, Yolanda, De Lary, Hortense, Delebecq, Gaspard, Devesa, Jeremy, Domeau, Aurélien, Durozier, Maria, Emery, Claire, Feunteun, Eric, Fauchot, Juliette, Gentilhomme, Valérie, Geslin, Sandrine, Giraud, Mélanie, Grangeré, Karine, Grégori, Gerald, Grossteffan, Emilie, Gueux, Aurore, Guillaudeau, Julien, Guillou, Gael, Harrewyn, Manon, Jolly, Orianne, Jude-lemeilleur, Florence, Labatut, Paul, Labourdette, Nathalie, Lachaussée, Nicolas, Lafont, Michel, Lagadec, Veronique, Lambert, Christophe, Lamoureux, Jezebel, Lanceleur, Laurent, Lebreton, Benoit, Lecuyer, Eric, Lemeille, David, Leredde, Yann, Leroux, Cédric, Leynaert, Aude, L’helguen, Stéphane, Liénart, Camilla, Macé, Eric, Maria, Eric, Marie, Barbara, Marie, Dominique, Mas, Sébastien, Mendes, Fabrice, Mornet, Line, Mostajir, Behzad, Mousseau, Laure, Nowaczyk, Antoine, Nunige, Sandra, Parra, René, Paulin, Thomas, Pecqueur, David, Petit, Franck, Pineau, Philippe, Raimbault, Patrick, Rigaut-jalabert, Fabienne, Salmeron, Christophe, Salter, Ian, Sauriau, Pierre-guy, Seuront, Laurent, Sultan, Emmanuelle, Valdès, Rémi, Vantrepotte, Vincent, Vidussi, Francesca, Voron, Florian, Vuillemin, Renaud, Zudaire, Laurent., Garcia, Nicole, Breton, Elsa, Savoye, Nicolas, Rimmelin-maury, Peggy, Sautour, Benoit, Goberville, Eric, Lheureux, Arnaud, Cariou, Thierry, Ferreira, Sophie, Agogué, Hélène, Alliouane, Samir, Aubert, Fabien, Aubin, Sébastien, Berthebaud, Eric, Blayac, Hadrien, Blondel, Lucie, Boulart, Cedric, Bozec, Yann, Bureau, Sarah, Caillo, Arnaud, Cauvin, Arnaud, Cazes, Jean-baptiste, Chasselin, Leo, Claquin, Pascal, Conan, Pascal, Cordier, Marie-ange, Costes, Laurence, Crec’hriou, Romain, Crispi, Olivier, Crouvoisier, Muriel, David, Valérie, Del Amo, Yolanda, De Lary, Hortense, Delebecq, Gaspard, Devesa, Jeremy, Domeau, Aurélien, Durozier, Maria, Emery, Claire, Feunteun, Eric, Fauchot, Juliette, Gentilhomme, Valérie, Geslin, Sandrine, Giraud, Mélanie, Grangeré, Karine, Grégori, Gerald, Grossteffan, Emilie, Gueux, Aurore, Guillaudeau, Julien, Guillou, Gael, Harrewyn, Manon, Jolly, Orianne, Jude-lemeilleur, Florence, Labatut, Paul, Labourdette, Nathalie, Lachaussée, Nicolas, Lafont, Michel, Lagadec, Veronique, Lambert, Christophe, Lamoureux, Jezebel, Lanceleur, Laurent, Lebreton, Benoit, Lecuyer, Eric, Lemeille, David, Leredde, Yann, Leroux, Cédric, Leynaert, Aude, L’helguen, Stéphane, Liénart, Camilla, Macé, Eric, Maria, Eric, Marie, Barbara, Marie, Dominique, Mas, Sébastien, Mendes, Fabrice, Mornet, Line, Mostajir, Behzad, Mousseau, Laure, Nowaczyk, Antoine, Nunige, Sandra, Parra, René, Paulin, Thomas, Pecqueur, David, Petit, Franck, Pineau, Philippe, Raimbault, Patrick, Rigaut-jalabert, Fabienne, Salmeron, Christophe, Salter, Ian, Sauriau, Pierre-guy, Seuront, Laurent, Sultan, Emmanuelle, Valdès, Rémi, Vantrepotte, Vincent, Vidussi, Francesca, Voron, Florian, Vuillemin, Renaud, Zudaire, Laurent., and Garcia, Nicole

Abstract

IntroductionWhile crucial to ensuring the production of accurate and high-quality data—and to avoid erroneous conclusions—data quality control (QC) in environmental monitoring datasets is still poorly documented. MethodsWith a focus on annual inter-laboratory comparison (ILC) exercises performed in the context of the French coastal monitoring SOMLIT network, we share here a pragmatic approach to QC, which allows the calculation of systematic and random errors, measurement uncertainty, and individual performance. After an overview of the different QC actions applied to fulfill requirements for quality and competence, we report equipment, accommodation, design of the ILC exercises, and statistical methodology specially adapted to small environmental networks (<20 laboratories) and multivariate datasets. Finally, the expanded uncertainty of measurement for 20 environmental variables routinely measured by SOMLIT from discrete sampling—including Essential Ocean Variables—is provided. Results, Discussion, ConclusionThe examination of the temporal variations (2001–2021) in the repeatability, reproducibility, and trueness of the SOMLIT network over time confirms the essential role of ILC exercises as a tool for the continuous improvement of data quality in environmental monitoring datasets.

Published
2023
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118. When Should You Wait Before Updating? - Toward a Robustness Refinement

Author

Swan Dubois and Laurent Feuilloley and Franck Petit and Mikaël Rabie, Dubois, Swan, Feuilloley, Laurent, Petit, Franck, Rabie, Mikaël, Swan Dubois and Laurent Feuilloley and Franck Petit and Mikaël Rabie, Dubois, Swan, Feuilloley, Laurent, Petit, Franck, and Rabie, Mikaël

Abstract

Consider a dynamic network and a given distributed problem. At any point in time, there might exist several solutions that are equally good with respect to the problem specification, but that are different from an algorithmic perspective, because some could be easier to update than others when the network changes. In other words, one would prefer to have a solution that is more robust to topological changes in the network; and in this direction the best scenario would be that the solution remains correct despite the dynamic of the network. In [Arnaud Casteigts et al., 2020], the authors introduced a very strong robustness criterion: they required that for any removal of edges that maintain the network connected, the solution remains valid. They focus on the maximal independent set problem, and their approach consists in characterizing the graphs in which there exists a robust solution (the existential problem), or even stronger, where any solution is robust (the universal problem). As the robustness criteria is very demanding, few graphs have a robust solution, and even fewer are such that all of their solutions are robust. In this paper, we ask the following question: Can we have robustness for a larger class of networks, if we bound the number k of edge removals allowed? To answer this question, we consider three classic problems: maximal independent set, minimal dominating set and maximal matching. For the universal problem, the answers for the three cases are surprisingly different. For minimal dominating set, the class does not depend on the number of edges removed. For maximal matching, removing only one edge defines a robust class related to perfect matchings, but for all other bounds k, the class is the same as for an arbitrary number of edge removals. Finally, for maximal independent set, there is a strict hierarchy of classes: the class for the bound k is strictly larger than the class for bound k+1. For the robustness notion of [Arnaud Casteigts et al., 2

Published
2023
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121. La mixité proportionnelle applicable aux élections partielles des représentants du personnel

Author

Petit, Franck, Aix Marseille Université (AMU), Centre de Droit Social (CDS), and collaboration or project value

Subjects
Droit Social et Societes, [SHS.DROIT]Humanities and Social Sciences/Law, Mixité hommes-femmes, Comité social et économique, Représentation proportionnelle, Election partielle
Abstract

International audience; Note sous Cour de cassation (soc.), 9 novembre 2022, no 21-60.183 (F-B), Syndicat Solidaires informatique et autres c/ SAS Solutec

Published
2023

122. Self-stabilizing Leader Election in Polynomial Steps

Author

Altisen, Karine, Cournier, Alain, Devismes, Stéphane, Durand, Anaïs, Petit, Franck, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Kobsa, Alfred, Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Felber, Pascal, editor, and Garg, Vijay, editor

Published
2014
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124. Gas kinematics around filamentary structures in the Orion B cloud

Author

Gaudel, Mathilde, primary, Orkisz, Jan H., additional, Gerin, Maryvonne, additional, Pety, Jérôme, additional, Roueff, Antoine, additional, Marchal, Antoine, additional, Levrier, François, additional, Miville-Deschênes, Marc-Antoine, additional, Goicoechea, Javier R., additional, Roueff, Evelyne, additional, Le Petit, Franck, additional, de Souza Magalhaes, Victor, additional, Palud, Pierre, additional, Santa-Maria, Miriam G., additional, Vono, Maxime, additional, Bardeau, Sébastien, additional, Bron, Emeric, additional, Chainais, Pierre, additional, Chanussot, Jocelyn, additional, Gratier, Pierre, additional, Guzman, Viviana, additional, Hughes, Annie, additional, Kainulainen, Jouni, additional, Languignon, David, additional, Le Bourlot, Jacques, additional, Liszt, Harvey, additional, Öberg, Karin, additional, Peretto, Nicolas, additional, Sievers, Albrecht, additional, and Tremblin, Pascal, additional

Published
2023
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126. L'action d'un syndicat à l'égard d'un règlement intérieur irrégulier

Author

Petit, Franck, Droit2HAL, Projet, Aix Marseille Université (AMU), Centre de Droit Social (CDS), and collaboration or project value

Subjects
Action en référé, [SHS.DROIT]Humanities and Social Sciences/Law, [SHS.DROIT] Humanities and Social Sciences/Law, Règlement intérieur, Syndicats, Suspension du règlement intérieur, Action en justice
Abstract

International audience

Published
2023

127. Quels périmètres pour la mise en place du CSE, des délégués syndicaux et des représentants de proximité ?

Author

Petit, Franck, Droit2HAL, Projet, Aix Marseille Université (AMU), Centre de Droit Social (CDS), and collaboration or project value

Subjects
Institutions Representatives du Personnel, [SHS.DROIT]Humanities and Social Sciences/Law, [SHS.DROIT] Humanities and Social Sciences/Law, Etablissement distinct, Désignation du délégué syndical, CSE, UES
Abstract

International audience

Published
2023

128. La liberté fondamentale de voter implique celle de voter blanc ou nul

Author

Petit, Franck, Aix Marseille Université (AMU), Centre de Droit Social (CDS), and collaboration or project value

Subjects
[SHS.DROIT]Humanities and Social Sciences/Law, Vote électronique, Validation d'un accord collectif, Convention et Accords Collectifs, Référendum, Liberté de vote
Abstract

International audience

Published
2022

129. Ring Exploration by Oblivious Robots with Vision Limited to 2 or 3

Author

Datta, Ajoy K., Lamani, Anissa, Larmore, Lawrence L., Petit, Franck, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Higashino, Teruo, editor, Katayama, Yoshiaki, editor, Masuzawa, Toshimitsu, editor, Potop-Butucaru, Maria, editor, and Yamashita, Masafumi, editor

Published
2013
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130. Self-stabilizing Balancing Algorithm for Containment-Based Trees

Author

Bampas, Evangelos, Lamani, Anissa, Petit, Franck, Valero, Mathieu, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Higashino, Teruo, editor, Katayama, Yoshiaki, editor, Masuzawa, Toshimitsu, editor, Potop-Butucaru, Maria, editor, and Yamashita, Masafumi, editor

Published
2013
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131. Optimal Grid Exploration by Asynchronous Oblivious Robots

Author

Devismes, Stéphane, Lamani, Anissa, Petit, Franck, Raymond, Pascal, Tixeuil, Sébastien, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Richa, Andréa W., editor, and Scheideler, Christian, editor

Published
2012
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132. Snap-Stabilizing Message Forwarding Algorithm on Tree Topologies

Author

Cournier, Alain, Dubois, Swan, Lamani, Anissa, Petit, Franck, Villain, Vincent, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Bononi, Luciano, editor, Datta, Ajoy K., editor, Devismes, Stéphane, editor, and Misra, Archan, editor

Published
2012
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133. Le droit d'alerte économique, prérogative exclusive du comité social et économique central

Author

Petit, Franck, Aix Marseille Université (AMU), Centre de Droit Social (CDS), and collaboration or project value

Subjects
Droit Social et Societes, [SHS.DROIT]Humanities and Social Sciences/Law, Comité d'établissement, Droit d'alerte, Comité social et économique, Exclusion
Abstract

International audience; Note sous Cour de cassation (soc.), 15 juin 2022, no 21-13.312 (F+B), Société Kohler France c/ M. [R] secrétaire du comité social et économique d'établissement et Société Secafi

Published
2022

134. Le principe de publicité du scrutin

Author

Petit, Franck, Aix Marseille Université (AMU), Centre de Droit Social (CDS), and collaboration or project value

Subjects
Institutions Representatives du Personnel, Publication des résultats, [SHS.DROIT]Humanities and Social Sciences/Law, Vote électronique, CSE, Elections professionnelles
Abstract

International audience

Published
2022

135. Vote électronique et égalité des électeurs dans l'exercice du droit de vote

Author

Petit, Franck, Aix Marseille Université (AMU), Centre de Droit Social (CDS), and collaboration or project value

Subjects
Institutions Representatives du Personnel, [SHS.DROIT]Humanities and Social Sciences/Law, Principe général du droit électoral, CSE, Principe d'égalité, Elections professionnelles
Abstract

International audience

Published
2022

136. Mélange de bruits et échantillonnage de posterior non log-concave

Author

Palud, Pierre, Chainais, Pierre, Le Petit, Franck, Bron, Emeric, Thouvenin, Pierre-Antoine, Vono, Maxime, Einig, Lucas, Garcia Santa-Maria, Miriam, Gaudel, Mathilde, Orkisz, Jan, Magalhaes, Victor de Souza, Bardeau, Sébastien, Gerin, Maryvonne, Goicoechea, Javier, Gratier, Pierre, Guzman, Viviana, Kainulainen, Jouni, Levrier, François, Peretto, Nicolas, Pety, Jérôme, Roueff, Antoine, Sievers, Albrecht, Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 (CRIStAL), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), Criteo AI Lab, Criteo [Paris], Institut de RadioAstronomie Millimétrique (IRAM), Centre National de la Recherche Scientifique (CNRS), Instituto de Física Fundamental [Madrid] (IFF), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Department of Space, Earth and Environment, Chalmers University of Technology, Chalmers University of Technology [Gothenburg, Sweden], Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Joint ALMA Observatory (JAO), European Southern Observatory (ESO)-National Radio Astronomy Observatory (NRAO), Laboratoire de Radioastronomie (LRA), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), School of Physics and Astronomy [Cardiff], Cardiff University, PhyTI (PhyTI), Institut FRESNEL (FRESNEL), Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-École Centrale de Marseille (ECM)-Centre National de la Recherche Scientifique (CNRS), Instituto de RadioAstronomía Milimétrica (IRAM), Association GRETSI : Groupe de Recherche et d'Etudes de Traitement du Signal et des Images, ANR-21-CE31-0010,DAOISM,Analyse Détaillée du Milieu Inter-Stellaire(2021), Palud, Pierre, and Analyse Détaillée du Milieu Inter-Stellaire - - DAOISM2021 - ANR-21-CE31-0010 - AAPG2021 - VALID

Subjects
Markov chain Monte Carlo, [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, [INFO.INFO-TS] Computer Science [cs]/Signal and Image Processing, Bayesian inference, Inverse problem
Abstract

This work considers a radio-astronomy inverse problem of physical parameters inference from multispectral images. The forward model is a numerical simulation, and the observation model mixes different sources of noise. This results in a non-explicit non-log-concave likelihood function. We introduce a likelihood approximation with controlled error that allow the conception of a Monte Carlo Markov Chain (MCMC) method. The obtained sampler provides credibility intervals along with point estimates. We believe that the proposed approach is sufficiently generic to be applied to similar inverse problems., Ce travail considère un problème inverse en astrophysique, qui consiste à estimer un ensemble de paramètres physiques à partir d'images multispectrales. Le modèle direct sous-jacent est une simulation numérique et le modèle d'observation mélange différentes sources de bruit. Ces caractéristiques donnent lieu à une fonction de log-vraisemblance non explicite et non concave. Nous en définissons une approximation qui permet de concevoir une méthode de Monte Carlo par chaîne de Markov (MCMC). L'échantillonneur obtenu fournit estimations ponctuelles et intervalles de crédibilité associés. L'approche proposée est suffisamment générale pour être appliquée à des problèmes inverses similaires.

Published
2022

137. Mixture of noises and sampling non log-concave distributions

Author

Palud, Pierre, Le Petit, Franck, Chainais, Pierre, Bron, Emeric, Thouvenin, Pierre-Antoine, Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 (CRIStAL), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), and Palud, Pierre

Subjects
[PHYS]Physics [physics], Markov chain Monte Carlo, [STAT.ME] Statistics [stat]/Methodology [stat.ME], [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing, [INFO.INFO-TS] Computer Science [cs]/Signal and Image Processing, Bayesian inference, Inverse problem, [STAT.ME]Statistics [stat]/Methodology [stat.ME], [PHYS] Physics [physics]
Abstract

International audience

Published
2022

140. Leader Election Problem versus Pattern Formation Problem

Author

Dieudonné, Yoann, Petit, Franck, Villain, Vincent, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Lynch, Nancy A., editor, and Shvartsman, Alexander A., editor

Published
2010
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141. Optimal Probabilistic Ring Exploration by Semi-synchronous Oblivious Robots

Author

Devismes, Stéphane, Petit, Franck, Tixeuil, Sébastien, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Kutten, Shay, editor, and Žerovnik, Janez, editor

Published
2010
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142. Deaf, Dumb, and Chatting Asynchronous Robots : Enabling Distributed Computation and Fault-Tolerance among Stigmergic Robots

Author

Dieudonné, Yoann, Dolev, Shlomi, Petit, Franck, Segal, Michael, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Abdelzaher, Tarek, editor, Raynal, Michel, editor, and Santoro, Nicola, editor

Published
2009
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143. La négociation de la force de travail

Author

Bernaud, Valérie, Bonnenfant, Christian, Canut, Florence, Champy, Guillaume, Donnette-Boissière, Anaëlle, Gratton, Laurène, Maffre-Baugé, Agnès, Petit, Franck, and Petit, Franck

Subjects
History, droit du travail, Law (General), contrat de travail
Abstract

Le contrat de travail, que connaît une très forte majorité de la population active, a un contenu de plus en plus riche et complexe. Il est fini le temps où l'on se contentait d'un engagement oral ou d'un court écrit- telle une lettre d'engagement de rédaction sommaire - précisant uniquement la qualification du salarié et le montant de sa rémunération. Actuellement, les contrats incluent de nombreuses clauses - telles qu'une clause de variation de la rémunération, une convention de forfait, une clause de mobilité, une clause d'invention, une clause de conscience pour certains métiers ... - qui apportent des réponses essentielles au contenu de la relation de travail. Cet ouvrage propose d'en donner une approche à la fois générale et particulière en vue d'aider les salariés, les praticiens, les étudiants et les enseignants à mieux connaître les droits individuels nés du contrat de travail.

Published
2022

144. La responsabilité sociale de l'employeur (RSE) : Santé et sécurité au travail, stress et violence au travail, risques psychosociaux, harcèlements, risques environnementaux, prévention et réparation des risques professionnels, qualité de vie au travail Ed. 1

Author

Petit, Franck, Garnier, Sophie, Petit, Franck, Petit, Franck, Garnier, Sophie, and Petit, Franck

Abstract

Qu'est-ce que la responsabilité sociale d'un employeur ?La responsabilité sociale de l'employeur (on parle également de responsabilité sociétale ou RSE) concerne tous les types d'entreprise, les petites comme les grandes, sans que le secteur d'activité importe. C'est même devenu une obligation légale depuis 2019 (avec la loi Pacte) puisque « toutes les entreprises françaises sans exception, doivent "prendre en considération" les enjeux environnementaux et sociaux dans la gestion de leurs activités ».Le but est d'améliorer la qualité de vie des collaborateurs et de toutes les personnes qui entrent en contact avec l'entreprise. D'ailleurs, les DRH se mobilisent de plus en plus sur la qualité de vie au travail et le bien-être des collaborateurs (89 %).Pourtant, en 2020, la responsabilité sociale reste un domaine encore peu exploité des entreprises, qui peinent parfois à comprendre ses enjeux. Le principe est compris, mais pas forcément la façon de la mettre en place dans l'entreprise.À la fois didactique et réflexif, cet ouvrage sera utile aux employeurs, aux responsables de ressources humaines, aux salariés, aux représentants du personnel, aux avocats, aux conseillers prud'homaux, aux inspecteurs du travail, ainsi qu'aux citoyens et aux décideurs publics et privés de tout niveau pour mener une réflexion globale sur la responsabilité sociale de l'employeur et interroger les réponses du droit en la matière. Points forts Des solutions adaptées à l'action des professionnels Un ouvrage complété par des graphes, des exemples et des conseils pratiques

Published
2021

145. With Finite Memory Consensus Is Easier Than Reliable Broadcast

Author

Delporte-Gallet, Carole, Devismes, Stéphane, Fauconnier, Hugues, Petit, Franck, Toueg, Sam, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Baker, Theodore P., editor, Bui, Alain, editor, and Tixeuil, Sébastien, editor

Published
2008
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146. Squaring the Circle with Weak Mobile Robots

Author

Dieudonné, Yoann, Petit, Franck, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Hong, Seok-Hee, editor, Nagamochi, Hiroshi, editor, and Fukunaga, Takuro, editor

Published
2008
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147. Snap-Stabilizing Waves in Anonymous Networks

Author

Boulinier, Christian, Levert, Mathieu, Petit, Franck, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Rao, Shrisha, editor, Chatterjee, Mainak, editor, Jayanti, Prasad, editor, Murthy, C. Siva Ram, editor, and Saha, Sanjoy Kumar, editor

Published
2008
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148. Swing Words to Make Circle Formation Quiescent

Author

Dieudonné, Yoann, Petit, Franck, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Rangan, C. Pandu, editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Prencipe, Giuseppe, editor, and Zaks, Shmuel, editor

Published
2007
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149. Robots and Demons (The Code of the Origins)

Author

Dieudonné, Yoann, Petit, Franck, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Crescenzi, Pierluigi, editor, Prencipe, Giuseppe, editor, and Pucci, Geppino, editor

Published
2007
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150. Deterministic Leader Election in Anonymous Sensor Networks Without Common Coordinated System

Author

Dieudonné, Yoann, Petit, Franck, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Tovar, Eduardo, editor, Tsigas, Philippas, editor, and Fouchal, Hacène, editor

Published
2007
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