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Gaia Data Release 2. Kinematics of globular clusters and dwarf galaxies around the Milky Way

Gaia Collaboration; Helmi, A.; van Leeuwen, F.; McMillan, P. J.; Massari, D.; Antoja, T.; Robin, A. C.; Lindegren, L.; Bastian, U.; Arenou, F. et al.
Gaia Data Release 2. Kinematics of globular clusters and dwarf galaxies around the Milky Way // Astronomy & astrophysics (Berlin), 616 (2018), A12, 47 doi:10.1051/0004-6361/201832698 (međunarodna recenzija, članak, znanstveni)

CROSBI ID: 988207 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Gaia Data Release 2. Kinematics of globular clusters and dwarf galaxies around the Milky Way
(Gaia Data Release 2)

Autori
Gaia Collaboration ; Helmi, A. ; van Leeuwen, F. ; McMillan, P. J. ; Massari, D. ; Antoja, T. ; Robin, A. C. ; Lindegren, L. ; Bastian, U. ; Arenou, F. ; Babusiaux, C. ; Biermann, M. ; Breddels, M. A. ; Hobbs, D. ; Jordi, C. ; Pancino, E. ; Reylé, C. ; Veljanoski, J. ; Brown, A. G. A. ; Vallenari, A. ; Prusti, T. ; de Bruijne, J. H. J. ; Bailer-Jones, C. A. L. ; Evans, D. W. ; Eyer, L. ; Jansen, F. ; Klioner, S. A. ; Lammers, U. ; Luri, X. ; Mignard, F. ; Panem, C. ; Pourbaix, D. ; Randich, S. ; Sartoretti, P. ; Siddiqui, H. I. ; Soubiran, C. ; Walton, N. A. ; Cropper, M. ; Drimmel, R. ; Katz, D. ; Lattanzi, M. G. ; Bakker, J. ; Cacciari, C. ; Castañeda, J. ; Chaoul, L. ; Cheek, N. ; De Angeli, F. ; Fabricius, C. ; Guerra, R. ; Holl, B. ; Masana, E. ; Messineo, R. ; Mowlavi, N. ; Nienartowicz, K. ; Panuzzo, P. ; Portell, J. ; Riello, M. ; Seabroke, G. M. ; Tanga, P. ; Thévenin, F. ; Gracia-Abril, G. ; Comoretto, G. ; Garcia-Reinaldos, M. ; Teyssier, D. ; Altmann, M. ; Andrae, R. ; Audard, M. ; Bellas-Velidis, I. ; Benson, K. ; Berthier, J. ; Blomme, R. ; Burgess, P. ; Busso, G. ; Carry, B. ; Cellino, A. ; Clementini, G. ; Clotet, M. ; Creevey, O. ; Davidson, M. ; De Ridder, J. ; Delchambre, L. ; Dell’Oro, A. ; Ducourant, C. ; Fernández-Hernández, J. ; Fouesneau, M. ; Frémat, Y. ; Galluccio, L. ; García–Torres, M. ; González-Núñez, J. ; González–Vidal, J. J. ; Gosset, E. ; Guy, L. P. ; Halbwachs, J.-L. ; Hambly, N. C. ; Harrison, D. L. ; Hernández, J. ; Hestroffer, D. ; Hodgkin, S. T. ; Hutton, A. ; Jasniewicz, G. ; Jean-Antoine-Piccolo, A. ; Jordan, S. ; Korn, A. J. ; Krone-Martins, A. ; Lanzafame, A. C. ; Lebzelter, T. ; Löffler, W. ; Manteiga, M. ; Marrese, P. M. ; Martín–Fleitas, J. M. ; Moitinho, A. ; Mora, A. ; Muinonen, K. ; Osinde, J. ; Pauwels, T. ; Petit, J.-M. ; Recio-Blanco, A. ; Richards, P. J. ; Rimoldini, L. ; Sarro, L. M. ; Siopis, C. ; Smith, M. ; Sozzetti, A. ; Süveges, M. ; Torra, J. ; van Reeven, W. ; Abbas, U. ; Abreu Aramburu, A. ; Accart, S. ; Aerts, C. ; Altavilla, G. ; Álvarez, M. A. ; Alvarez, R. ; Alves, J. ; Anderson, R. I. ; Andrei, A. H. ; Anglada Varela, E. ; Antiche, E. ; Arcay, B. ; Astraatmadja, T. L. ; Bach, N. ; Baker, S. G. ; Balaguer-Núñez, L. ; Balm, P. ; Barache, C. ; Barata, C. ; Barbato, D. ; Barblan, F. ; Barklem, P. S. ; Barrado, D. ; Barros, M. ; Barstow, M. A. ; Bartholomé Muñoz, S. ; Bassilana, J.-L. ; Becciani, U. ; Bellazzini, M. ; Berihuete, A. ; Bertone, S. ; Bianchi, L. ; Bienaymé, O. ; Blanco-Cuaresma, S. ; Boch, T. ; Boeche, C. ; Bombrun, A. ; Borrachero, R. ; Bossini, D. ; Bouquillon, S. ; Bourda, G. ; Bragaglia, A. ; Bramante, L. ; Bressan, A. ; Julbe, F. ; Karampelas, A. ; Kewley, A. ; Klar, J. ; Kochoska, A. ; Kohley, R. ; Kolenberg, K. ; Kontizas, M. ; Kontizas, E. ; Koposov, S. E. ; Kordopatis, G. ; Kostrzewa-Rutkowska, Z. ; Koubsky, P. ; Lambert, S. ; Lanza, A. F. ; Lasne, Y. ; Lavigne, J.-B. ; Le Fustec, Y. ; Le Poncin-Lafitte, C. ; Lebreton, Y. ; Leccia, S. ; Leclerc, N. ; Lecoeur-Taibi, I. ; Lenhardt, H. ; Leroux, F. ; Liao, S. ; Licata, E. ; Lindstrøm, H. E. P. ; Lister, T. A. ; Livanou, E. ; Lobel, A. ; López, M. ; Managau, S. ; Mann, R. G. ; Mantelet, G. ; Marchal, O. ; Marchant, J. M. ; Marconi, M. ; Marinoni, S. ; Marschalkó, G. ; Marshall, D. J. ; Martino, M. ; Marton, G. ; Mary, N. ; Matijevič, G. ; Mazeh, T. ; Messina, S. ; Michalik, D. ; Millar, N. R. ; Molina, D. ; Molinaro, R. ; Molnár, L. ; Montegriffo, P. ; Mor, R. ; Morbidelli, R. ; Morel, T. ; Morris, D. ; Mulone, A. F. ; Muraveva, T. ; Musella, I. ; Nelemans, G. ; Nicastro, L. ; Noval, L. ; O’Mullane, W. ; Ordénovic, C. ; Ordóñez–Blanco, D. ; Osborne, P. ; Pagani, C. ; Pagano, I. ; Pailler, F. ; Palacin, H. ; Palaversa, L. ; Panahi, A. ; et al.

Izvornik
Astronomy & astrophysics (Berlin) (0004-6361) 616 (2018); A12, 47

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Galaxy: kinematics and dynamics / astrometry / globular clusters: general / galaxies: dwarf / Local Group / Magellanic Clouds

Sažetak
Aims. The goal of this paper is to demonstrate the outstanding quality of the second data release of the Gaia mission and its power for constraining many different aspects of the dynamics of the satellites of the Milky Way. We focus here on determining the proper motions of 75 Galactic globular clusters, nine dwarf spheroidal galaxies, one ultra-faint system, and the Large and Small Magellanic Clouds. Methods. Using data extracted from the Gaia archive, we derived the proper motions and parallaxes for these systems, as well as their uncertainties. We demonstrate that the errors, statistical and systematic, are relatively well understood. We integrated the orbits of these objects in three different Galactic potentials, and characterised their properties. We present the derived proper motions, space velocities, and characteristic orbital parameters in various tables to facilitate their use by the astronomical community. Results. Our limited and straightforward analyses have allowed us for example to (i) determine absolute and very precise proper motions for globular clusters ; (ii) detect clear rotation signatures in the proper motions of at least five globular clusters ; (iii) show that the satellites of the Milky Way are all on high-inclination orbits, but that they do not share a single plane of motion ; (iv) derive a lower limit for the mass of the Milky Way of 9.1-2.6+6.2 × 1011 M⊙ based on the assumption that the Leo I dwarf spheroidal is bound ; (v) derive a rotation curve for the Large Magellanic Cloud based solely on proper motions that is competitive with line-of-sight velocity curves, now using many orders of magnitude more sources ; and (vi) unveil the dynamical effect of the bar on the motions of stars in the Large Magellanic Cloud. Conclusions. All these results highlight the incredible power of the Gaia astrometric mission, and in particular of its second data release.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA

Profili:

Avatar Url Lovro Palaversa (autor)

Poveznice na cjeloviti tekst rada:

doi

Citiraj ovu publikaciju:

Gaia Collaboration; Helmi, A.; van Leeuwen, F.; McMillan, P. J.; Massari, D.; Antoja, T.; Robin, A. C.; Lindegren, L.; Bastian, U.; Arenou, F. et al.
Gaia Data Release 2. Kinematics of globular clusters and dwarf galaxies around the Milky Way // Astronomy & astrophysics (Berlin), 616 (2018), A12, 47 doi:10.1051/0004-6361/201832698 (međunarodna recenzija, članak, znanstveni)
Gaia Collaboration, Helmi, A., van Leeuwen, F., McMillan, P., Massari, D., Antoja, T., Robin, A., Lindegren, L., Bastian, U. & Arenou, F. (2018) Gaia Data Release 2. Kinematics of globular clusters and dwarf galaxies around the Milky Way. Astronomy & astrophysics (Berlin), 616, A12, 47 doi:10.1051/0004-6361/201832698.
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@article{article, author = {Helmi, A. and van Leeuwen, F. and McMillan, P. J. and Massari, D. and Antoja, T. and Robin, A. C. and Lindegren, L. and Bastian, U. and Arenou, F. and Babusiaux, C. and Biermann, M. and Breddels, M. A. and Hobbs, D. and Jordi, C. and Pancino, E. and Reyl\'{e}, C. and Veljanoski, J. and Brown, A. G. A. and Vallenari, A. and Prusti, T. and de Bruijne, J. H. J. and Bailer-Jones, C. A. L. and Evans, D. W. and Eyer, L. and Jansen, F. and Klioner, S. A. and Lammers, U. and Luri, X. and Mignard, F. and Panem, C. and Pourbaix, D. and Randich, S. and Sartoretti, P. and Siddiqui, H. I. and Soubiran, C. and Walton, N. A. and Cropper, M. and Drimmel, R. and Katz, D. and Lattanzi, M. G. and Bakker, J. and Cacciari, C. and Casta\~{n}eda, J. and Chaoul, L. and Cheek, N. and De Angeli, F. and Fabricius, C. and Guerra, R. and Holl, B. and Masana, E. and Messineo, R. and Mowlavi, N. and Nienartowicz, K. and Panuzzo, P. and Portell, J. and Riello, M. and Seabroke, G. M. and Tanga, P. and Th\'{e}venin, F. and Gracia-Abril, G. and Comoretto, G. and Garcia-Reinaldos, M. and Teyssier, D. and Altmann, M. and Andrae, R. and Audard, M. and Bellas-Velidis, I. and Benson, K. and Berthier, J. and Blomme, R. and Burgess, P. and Busso, G. and Carry, B. and Cellino, A. and Clementini, G. and Clotet, M. and Creevey, O. and Davidson, M. and De Ridder, J. and Delchambre, L. and Dell’Oro, A. and Ducourant, C. and Fern\'{a}ndez-Hern\'{a}ndez, J. and Fouesneau, M. and Fr\'{e}mat, Y. and Galluccio, L. and Garc\'{\i}a–Torres, M. and Gonz\'{a}lez-N\'{u}\~{n}ez, J. and Gonz\'{a}lez–Vidal, J. J. and Gosset, E. and Guy, L. P. and Halbwachs, J.-L. and Hambly, N. C. and Harrison, D. L. and Hern\'{a}ndez, J. and Hestroffer, D. and Hodgkin, S. T. and Hutton, A. and Jasniewicz, G. and Jean-Antoine-Piccolo, A. and Jordan, S. and Korn, A. J. and Krone-Martins, A. and Lanzafame, A. C. and Lebzelter, T. and L\"{o}ffler, W. and Manteiga, M. and Marrese, P. M. and Mart\'{\i}n–Fleitas, J. M. and Moitinho, A. and Mora, A. and Muinonen, K. and Osinde, J. and Pauwels, T. and Petit, J.-M. and Recio-Blanco, A. and Richards, P. J. and Rimoldini, L. and Sarro, L. M. and Siopis, C. and Smith, M. and Sozzetti, A. and S\"{u}veges, M. and Torra, J. and van Reeven, W. and Abbas, U. and Abreu Aramburu, A. and Accart, S. and Aerts, C. and Altavilla, G. and \'{A}lvarez, M. A. and Alvarez, R. and Alves, J. and Anderson, R. I. and Andrei, A. H. and Anglada Varela, E. and Antiche, E. and Arcay, B. and Astraatmadja, T. L. and Bach, N. and Baker, S. G. and Balaguer-N\'{u}\~{n}ez, L. and Balm, P. and Barache, C. and Barata, C. and Barbato, D. and Barblan, F. and Barklem, P. S. and Barrado, D. and Barros, M. and Barstow, M. A. and Bartholom\'{e} Mu\~{n}oz, S. and Bassilana, J.-L. and Becciani, U. and Bellazzini, M. and Berihuete, A. and Bertone, S. and Bianchi, L. and Bienaym\'{e}, O. and Blanco-Cuaresma, S. and Boch, T. and Boeche, C. and Bombrun, A. and Borrachero, R. and Bossini, D. and Bouquillon, S. and Bourda, G. and Bragaglia, A. and Bramante, L. and Bressan, A. and Julbe, F. and Karampelas, A. and Kewley, A. and Klar, J. and Kochoska, A. and Kohley, R. and Kolenberg, K. and Kontizas, M. and Kontizas, E. and Koposov, S. E. and Kordopatis, G. and Kostrzewa-Rutkowska, Z. and Koubsky, P. and Lambert, S. and Lanza, A. F. and Lasne, Y. and Lavigne, J.-B. and Le Fustec, Y. and Le Poncin-Lafitte, C. and Lebreton, Y. and Leccia, S. and Leclerc, N. and Lecoeur-Taibi, I. and Lenhardt, H. and Leroux, F. and Liao, S. and Licata, E. and Lindstr\om, H. E. P. and Lister, T. A. and Livanou, E. and Lobel, A. and L\'{o}pez, M. and Managau, S. and Mann, R. G. and Mantelet, G. and Marchal, O. and Marchant, J. M. and Marconi, M. and Marinoni, S. and Marschalk\'{o}, G. and Marshall, D. J. and Martino, M. and Marton, G. and Mary, N. and Matijevi\v{c}, G. and Mazeh, T. and Messina, S. and Michalik, D. and Millar, N. R. and Molina, D. and Molinaro, R. and Moln\'{a}r, L. and Montegriffo, P. and Mor, R. and Morbidelli, R. and Morel, T. and Morris, D. and Mulone, A. F. and Muraveva, T. and Musella, I. and Nelemans, G. and Nicastro, L. and Noval, L. and O’Mullane, W. and Ord\'{e}novic, C. and Ord\'{o}\~{n}ez–Blanco, D. and Osborne, P. and Pagani, C. and Pagano, I. and Pailler, F. and Palacin, H. and Palaversa, L. and Panahi, A.}, year = {2018}, pages = {47}, DOI = {10.1051/0004-6361/201832698}, chapter = {A12}, keywords = {Galaxy: kinematics and dynamics / astrometry / globular clusters: general / galaxies: dwarf / Local Group / Magellanic Clouds}, journal = {Astronomy and astrophysics (Berlin)}, doi = {10.1051/0004-6361/201832698}, volume = {616}, issn = {0004-6361}, title = {Gaia Data Release 2}, keyword = {Galaxy: kinematics and dynamics / astrometry / globular clusters: general / galaxies: dwarf / Local Group / Magellanic Clouds}, chapternumber = {A12} }

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