Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Chemin, Laurent"'
Autor:
Jiao, Yongjun, Hammer, Francois, Wang, Haifeng, Wang, Jianling, Amram, Philippe, Chemin, Laurent, Yang, Yanbin
Publikováno v:
A&A 678, A208 (2023)
Our position inside the Galactic disc had prevented us from establishing an accurate rotation curve, until the advent of Gaia, whose third data release (Gaia DR3) made it possible to specify it up to twice the optical radius. We aim to establish a ne
Externí odkaz:
http://arxiv.org/abs/2309.00048
Autor:
Rhea, Carter Lee, Rousseau-Nepton, Laurie, Moumen, Ismael, Prunet, Simon, Hlavacek-Larrondo, Julie, Grasha, Kathryn, Roberts, Carmelle, Morisset, Christophe, Stasinska, Grazyna, Vale-Asari, Natalia, Giroux, Justine, McLeod, Anna, Gendron-Marsolais, Marie-Lou, Wang, Junfeng, Lyman, Joe, Chemin, Laurent
Diagnostic diagrams of emission-line ratios have been used extensively to categorize extragalactic emission regions; however, these diagnostics are occasionally at odds with each other due to differing definitions. In this work, we study the applicab
Externí odkaz:
http://arxiv.org/abs/2306.11545
Autor:
Drimmel, Ronald, Khanna, Shourya, D'Onghia, Elena, Tepper-García, Thorsten, Bland-Hawthorn, Joss, Chemin, Laurent, Ripepi, Vincenzo, Romero-Gómez, Mercé, Ramos, Pau, Poggio, Eloisa, Andrae, Rene, Blomme, Ronny, Cantat-Gaudin, Tristan, Castro-Ginard, Alfred, Clementini, Gisella, Fiqueras, Francesca, Frémat, Yves, Fouesneau, Morgan, Lobel, Alex, Marshall, Douglas, Muraveva, Tatiana
Publikováno v:
A&A 670, A10 (2023)
Modern astrometric and spectroscopic surveys have revealed a wealth of structure in the phase space of stars in the Milky Way, with evidence of resonance features and non-equilibrium processes. Using Gaia's third data release, we present evidence of
Externí odkaz:
http://arxiv.org/abs/2207.12977
Autor:
McMillan, Paul J., Petersson, Jonathan, Tepper-Garcia, Thor, Bland-Hawthorn, Joss, Antoja, Teresa, Chemin, Laurent, Figueras, Francesca, Khanna, Shourya, Kordopatis, Georges, Ramos, Pau, Romero-Gómez, Merce, Seabroke, George
The outer parts of the Milky Way's disc are significantly out of equilibrium. Using only distances and proper motions of stars from Gaia's Early Data Release 3, in the range |b|<10{\deg}, 130{\deg}
Externí odkaz:
http://arxiv.org/abs/2206.04059
Autor:
Lu, Anan, Boyce, Hope, Haggard, Daryl, Bureau, Martin, Liang, Fu-Heng, Liu, Lijie, Choi, Woorak, Cappellari, Michele, Chemin, Laurent, Chevance, Mélanie, Davis, Timothy A., Drissen, Laurent, Elford, Jacob S., Gensior, Jindra, Kruijssen, J. M. Diederik, Martin, Thomas, Massé, Etienne, Robert, Carmelle, Ruffa, Ilaria, Rousseau-Nepton, Laurie, Sarzi, Marc, Williams, Gabriel Savard Thomas G.
The star formation efficiency (SFE) has been shown to vary across different environments, particularly within galactic starbursts and deep within the bulges of galaxies. Various quenching mechanisms may be responsible, ranging from galactic dynamics
Externí odkaz:
http://arxiv.org/abs/2206.03316
Autor:
Glowacki, Marcin, Collier, Jordan D., Kazemi-Moridani, Amir, Frank, Bradley, Roberts, Hayley, Darling, Jeremy, Klöckner, Hans-Rainer, Adams, Nathan, Baker, Andrew J., Bershady, Matthew, Blecher, Tariq, Blyth, Sarah-Louise, Bowler, Rebecca, Catinella, Barbara, Chemin, Laurent, Crawford, Steven M., Cress, Catherine, Davé, Romeel, Deane, Roger, de Blok, Erwin, Delhaize, Jacinta, Duncan, Kenneth, Elson, Ed, February, Sean, Gawiser, Eric, Hatfield, Peter, Healy, Julia, Henning, Patricia, Hess, Kelley M., Heywood, Ian, Holwerda, Benne W., Hoosain, Munira, Hughes, John P., Hutchens, Zackary L., Jarvis, Matt, Kannappan, Sheila, Katz, Neal, Kereš, Dušan, Korsaga, Marie, Kraan-Korteweg, Renée C., Lah, Philip, Lochner, Michelle, Maddox, Natasha, Makhathini, Sphesihle, Meurer, Gerhardt R., Meyer, Martin, Obreschkow, Danail, Oh, Se-Heon, Oosterloo, Tom, Oppor, Joshua, Pan, Hengxing, Pisano, D. J., Randriamiarinarivo, Nandrianina, Ravindranath, Swara, Schröder, Anja C., Skelton, Rosalind, Smirnov, Oleg, Smith, Mathew, Somerville, Rachel S., Srianand, Raghunathan, Staveley-Smith, Lister, Tanaka, Masayuki, Vaccari, Mattia, van Driel, Wim, Verheijen, Marc, Walter, Fabian, Wu, John F., Zwaan, Martin A.
In the local Universe, OH megamasers (OHMs) are detected almost exclusively in infrared-luminous galaxies, with a prevalence that increases with IR luminosity, suggesting that they trace gas-rich galaxy mergers. Given the proximity of the rest freque
Externí odkaz:
http://arxiv.org/abs/2204.02523
Autor:
Malbet, Fabien, Boehm, Céline, Krone-Martins, Alberto, Amorim, Antonio, Anglada-Escudé, Guillem, Brandeker, Alexis, Courbin, Frédéric, Enßlin, Torsten, Falcão, Antonio, Freese, Katherine, Holl, Berry, Labadie, Lucas, Léger, Alain, Mamon, Gary, Mcarthur, Barbara, Mora, Alcione, Shao, Mike, Sozzetti, Alessandro, Spolyar, Douglas, Villaver, Eva, Abbas, Ummi, Albertus, Conrado, Alves, João, Barnes, Rory, Bonomo, Aldo Stefano, Bouy, Hervé, Brown, Warren, Cardoso, Vitor, Castellani, Marco, Chemin, Laurent, Clark, Hamish, Correia, Alexandre, Crosta, Mariateresa, Crouzier, Antoine, Damasso, Mario, Darling, Jeremy, Davies, Melvyn, Diaferio, Antonaldo, Fortin, Morgane, Fridlund, Malcolm, Gai, Mario, Garcia, Paulo, Gnedin, Oleg, Goobar, Ariel, Gordo, Paulo, Goullioud, Renaud, Hall, David, Hambly, Nigel, Harrison, Diana, Hobbs, David, Holland, Andrew, Høg, Erik, Jordi, Carme, Klioner, Sergei, Lançon, Ariane, Laskar, Jacques, Lattanzi, Mario, Poncin-Lafitte, Christophe Le, Luri, Xavier, Michalik, Daniel, de Almeida, André Moitinho, Mourão, Ana, Moustakas, Leonidas, Murray, Neil, Muterspaugh, Matthew, Oertel, Micaela, Ostorero, Luisa, Portell, Jordi, Prost, Jean-Pierre, Quirrenbach, Andreas, Schneider, Jean, Scott, Pat, Siebert, Arnaud, Da Silva, Antonio, Silva, Manuel, Thébault, Philippe, Tomsick, John, Traub, Wesley, de Val-Borro, Miguel, Valluri, Monica, Walton, Nicholas, Watkins, Laura, White, Glenn, Wyrzykowski, Lukasz, Wyse, Rosemary, Yamada, Yoshiyuki
Publikováno v:
Experimental Astronomy, Springer Link, 2021, 51 (3), pp.845-886
Sky survey telescopes and powerful targeted telescopes play complementary roles in astronomy. In order to investigate the nature and characteristics of the motions of very faint objects, a flexibly-pointed instrument capable of high astrometric accur
Externí odkaz:
http://arxiv.org/abs/2111.08709
(Abridged) We study the properties of anisotropic and axisymmetric velocity ellipsoids from maps of the gas velocity dispersion in nearby galaxies. This data allow us to measure the azimuthal-to-radial axis ratio of gas velocity ellipsoids, which is
Externí odkaz:
http://arxiv.org/abs/2006.07274
Autor:
Quirk, Amanda C. N., Guhathakurta, Puragra, Chemin, Laurent, Dorman, Claire E., Gilbert, Karoline M., Seth, Anil C., Williams, Benjamin F., Dalcanton, Julianne J.
Publikováno v:
The Astrophysical Journal, 871:11 (20pp), 2019 January 20
We analyze the kinematics of Andromeda's disk as a function of stellar age by using photometry from the Panchromatic Hubble Andromeda Treasury (PHAT) survey and spectroscopy from the Spectroscopic and Photometric Landscape of Andromeda's Stellar Halo
Externí odkaz:
http://arxiv.org/abs/1811.07037
Autor:
Chemin, Laurent
Publikováno v:
A&A 618, A121 (2018)
The ellipsoid of stellar random motions is a fundamental ingredient of galaxy dynamics. Yet it has long been difficult to constrain this component in disks others than the Milky Way. This article presents the modeling of the azimuthal-to-radial axis
Externí odkaz:
http://arxiv.org/abs/1807.09833