2021A&A...649A...8G


Query : 2021A&A...649A...8G

2021A&A...649A...8G - Astronomy and Astrophysics, volume 649A, 8-8 (2021/5-1)

Gaia Early Data Release 3. The Galactic anticentre.

GAIA COLLABORATION, ANTOJA T., McMILLAN P.J., KORDOPATIS G., RAMOS P., HELMI A., BALBINOT E., CANTAT-GAUDIN T., CHEMIN L., FIGUERAS F., JORDI C., KHANNA S., ROMERO-GOMEZ M., SEABROKE G.M., BROWN A.G.A., VALLENARI A., PRUSTI T., DE BRUIJNE J.H.J., BABUSIAUX C., BIERMANN M., CREEVEY O.L., EVANS D.W., EYER L., HUTTON A., JANSEN F., KLIONER S.A., LAMMERS U., LINDEGREN L., LURI X., MIGNARD F., PANEM C., POURBAIX D., RANDICH S., SARTORETTI P., SOUBIRAN C., WALTON N.A., ARENOU F., BAILER-JONES C.A.L., BASTIAN U., CROPPER M., DRIMMEL R., KATZ D., LATTANZI M.G., VAN LEEUWEN F., BAKKER J., CASTANEDA J., DE ANGELI F., DUCOURANT C., FABRICIUS C., FOUESNEAU M., FREMAT Y., GUERRA R., GUERRIER A., GUIRAUD J., JEAN-ANTOINE-PICCOLO A., MASANA E., MESSINEO R., MOWLAVI N., NICOLAS C., NIENARTOWICZ K., PAILLER F., PANUZZO P., RICLET F., ROUX W., SORDO R., TANGA P., THEVENIN F., GRACIA-ABRIL G., PORTELL J., TEYSSIER D., ALTMANN M., ANDRAE R., BELLAS-VELIDIS I., BENSON K., BERTHIER J., BLOMME R., BRUGALETTA E., BURGESS P.W., BUSSO G., CARRY B., CELLINO A., CHEEK N., CLEMENTINI G., DAMERDJI Y., DAVIDSON M., DELCHAMBRE L., DELL'ORO A., FERNANDEZ-HERNANDEZ J., GALLUCCIO L., GARCIA-LARIO P., GARCIA-REINALDOS M., GONZALEZ-NUNEZ J., GOSSET E., HAIGRON R., HALBWACHS J.-L., HAMBLY N.C., HARRISON D.L., HATZIDIMITRIOU D., HEITER U., HERNANDEZ J., HESTROFFER D., HODGKIN S.T., HOLL B., JANSSEN K., JEVARDAT DE FOMBELLE G., JORDAN S., KRONE-MARTINS A., LANZAFAME A.C., LOFFLER W., LORCA A., MANTEIGA M., MARCHAL O., MARRESE P.M., MOITINHO A., MORA A., MUINONEN K., OSBORNE P., PANCINO E., PAUWELS T., RECIO-BLANCO A., RICHARDS P.J., RIELLO M., RIMOLDINI L., ROBIN A.C., ROEGIERS T., RYBIZKI J., SARRO L.M., SIOPIS C., SMITH M., SOZZETTI A., ULLA A., UTRILLA E., VAN LEEUWEN M., VAN REEVEN W., ABBAS U., ABREU ARAMBURU A., ACCART S., AERTS C., AGUADO J.J., AJAJ M., ALTAVILLA G., ALVAREZ M.A., ALVAREZ CID-FUENTES J., ALVES J., ANDERSON R.I., VARELA E.A., AUDARD M., BAINES D., BAKER S.G., BALAGUER-NUNEZ L., BALOG Z., BARACHE C., BARBATO D., BARROS M., BARSTOW M.A., BARTOLOME S., BASSILANA J.-L., BAUCHET N., BAUDESSON-STELLA A., BECCIANI U., BELLAZZINI M., BERNET M., BERTONE S., BIANCHI L., BLANCO-CUARESMA S., BOCH T., BOMBRUN A., BOSSINI D., BOUQUILLON S., BRAGAGLIA A., BRAMANTE L., BREEDT E., BRESSAN A., BROUILLET N., BUCCIARELLI B., BURLACU A., BUSONERO D., BUTKEVICH A.G., BUZZI R., CAFFAU E., CANCELLIERE R., CANOVAS H., CARBALLO R., CARLUCCI T., CARNERERO M.I., CARRASCO J.M., CASAMIQUELA L., CASTELLANI M., CASTRO-GINARD A., CASTRO SAMPOL P., CHAOUL L., CHARLOT P., CHIAVASSA A., CIONI M.-R.L., COMORETTO G., COOPER W.J., CORNEZ T., COWELL S., CRIFO F., CROSTA M., CROWLEY C., DAFONTE C., DAPERGOLAS A., DAVID M., DAVID P., DE LAVERNY P., DE LUISE F., DE MARCH R., DE RIDDER J., DE SOUZA R., DE TEODORO P., DE TORRES A., DEL PELOSO E.F., DEL POZO E., DELGADO A., DELGADO H.E., DELISLE J.-B., DI MATTEO P., DIAKITE S., DIENER C., DISTEFANO E., DOLDING C., EAPPACHEN D., ENKE H., ESQUEJ P., FABRE C., FABRIZIO M., FAIGLER S., FEDORETS G., FERNIQUE P., FIENGA A., FOURON C., FRAGKOUDI F., FRAILE E., FRANKE F., GAI M., GARABATO D., GARCIA-GUTIERREZ A., GARCIA-TORRES M., GAROFALO A., GAVRAS P., GERLACH E., GEYER R., GIACOBBE P., GILMORE G., GIRONA S., GIUFFRIDA G., GOMEZ A., GONZALEZ-SANTAMARIA I., GONZALEZ-VIDAL J.J., GRANVIK M., GUTIERREZ-SANCHEZ R., GUY L.P., HAUSER M., HAYWOOD M., HIDALGO S.L., HILGER T., HLADCZUK N., HOBBS D., HOLLAND G., HUCKLE H.E., JASNIEWICZ G., JONKER P.G., JUARISTI CAMPILLO J., JULBE F., KARBEVSKA L., KERVELLA P., KOCHOSKA A., KONTIZAS M., KORN A.J., KOSTRZEWA-RUTKOWSKA Z., KRUSZYNSKA K., LAMBERT S., LANZA A.F., LASNE Y., LE CAMPION J.-F., LE FUSTEC Y., LEBRETON Y., LEBZELTER T., LECCIA S., LECLERC N., LECOEUR-TAIBI I., LIAO S., LICATA E., LINDSTROM H.E.P., LISTER T.A., LIVANOU E., LOBEL A., MADRERO PARDO P., MANAGAU S., MANN R.G., MARCHANT J.M., MARCONI M., MARCOS SANTOS M.M.S., MARINONI S., MAROCCO F., MARSHALL D.J., MARTIN POLO L., MARTIN-FLEITAS J.M., MASIP A., MASSARI D., MASTROBUONO-BATTISTI A., MAZEH T., MESSINA S., MICHALIK D., MILLAR N.R., MINTS A., MOLINA D., MOLINARO R., MOLNAR L., MONTEGRIFFO P., MOR R., MORBIDELLI R., MOREL T., MORRIS D., MULONE A.F., MUNOZ D., MURAVEVA T., MURPHY C.P., MUSELLA I., NOVAL L., ORDENOVIC C., ORRU G., OSINDE J., PAGANI C., PAGANO I., PALAVERSA L., PALICIO P.A., PANAHI A., PAWLAK M., PENALOSA ESTELLER X., PENTTILA A., PIERSIMONI A.M., PINEAU F.-X., PLACHY E., PLUM G., POGGIO E., PORETTI E., POUJOULET E., PRSA A., PULONE L., RACERO E., RAGAINI S., RAINER M., RAITERI C.M., RAMBAUX N., RAMOS-LERATE M., RE FIORENTIN P., REGIBO S., REYLE C., RIPEPI V., RIVA A., RIXON G., ROBICHON N., ROBIN C., ROELENS M., ROHRBASSER L., ROWELL N., ROYER F., RYBICKI K.A., SADOWSKI G., SAGRISTA SELLES A., SAHLMANN J., SALGADO J., SALGUERO E., SAMARAS N., SANCHEZ GIMENEZ V., SANNA N., SANTOVENA R., SARASSO M., SCHULTHEIS M., SCIACCA E., SEGOL M., SEGOVIA J.C., SEGRANSAN D., SEMEUX D., SIDDIQUI H.I., SIEBERT A., SILTALA L., SLEZAK E., SMART R.L., SOLANO E., SOLITRO F., SOUAMI D., SOUCHAY J., SPAGNA A., SPOTO F., STEELE I.A., STEIDELMULLER H., STEPHENSON C.A., SUVEGES M., SZABADOS L., SZEGEDI-ELEK E., TARIS F., TAURAN G., TAYLOR M.B., TEIXEIRA R., THUILLOT W., TONELLO N., TORRA F., TORRA J., TURON C., UNGER N., VAILLANT M., VAN DILLEN E., VANEL O., VECCHIATO A., VIALA Y., VICENTE D., VOUTSINAS S., WEILER M., WEVERS T., WYRZYKOWSKI L., YOLDAS A., YVARD P., ZHAO H., ZOREC J., ZUCKER S., ZURBACH C. and ZWITTER T.

Abstract (from CDS):


Aims. We aim to demonstrate the scientific potential of the Gaia Early Data Release 3 (EDR3) for the study of different aspects of the Milky Way structure and evolution and we provide, at the same time, a description of several practical aspects of the data and examples of their usage.
Methods. We used astrometric positions, proper motions, parallaxes, and photometry from EDR3 to select different populations and components and to calculate the distances and velocities in the direction of the anticentre. In this direction, the Gaia astrometric data alone enable the calculation of the vertical and azimuthal velocities; also, the extinction is relatively low compared to other directions in the Galactic plane. We then explore the disturbances of the current disc, the spatial and kinematical distributions of early accreted versus in situ stars, the structures in the outer parts of the disc, and the orbits of open clusters Berkeley 29 and Saurer 1.
Results. With the improved astrometry and photometry of EDR3, we find that: (i) the dynamics of the Galactic disc are very complex with oscillations in the median rotation and vertical velocities as a function of radius, vertical asymmetries, and new correlations, including a bimodality with disc stars with large angular momentum moving vertically upwards from below the plane, and disc stars with slightly lower angular momentum moving preferentially downwards; (ii) we resolve the kinematic substructure (diagonal ridges) in the outer parts of the disc for the first time; (iii) the red sequence that has been associated with the proto-Galactic disc that was present at the time of the merger with Gaia-Enceladus-Sausage is currently radially concentrated up to around 14kpc, while the blue sequence that has been associated with debris of the satellite extends beyond that; (iv) there are density structures in the outer disc, both above and below the plane, most probably related to Monoceros, the Anticentre Stream, and TriAnd, for which the Gaia data allow an exhaustive selection of candidate member stars and dynamical study; and (v) the open clusters Berkeley 29 and Saurer 1, despite being located at large distances from the Galactic centre, are on nearly circular disc-like orbits.
Conclusions. Even with our simple preliminary exploration of the Gaia EDR3, we demonstrate how, once again, these data from the European Space Agency are crucial for our understanding of the different pieces of our Galaxy and their connection to its global structure and history.

Abstract Copyright: © ESO 2021

Journal keyword(s): Galaxy: disk - Galaxy: halo - stars: distances - open clusters and associations: individual: Saurer 1 - open clusters and associations: individual: Berkeley 29 - Galaxy: kinematics and dynamics

Simbad objects: 13

goto Full paper

goto View the references in ADS

Number of rows : 13
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5602 1
2 NAME Sagittarius Stream St* 02 22 +00.0           ~ 799 0
3 NAME Per Arm PoG 03 30 +45.0           ~ 1431 0
4 Cl Melotte 25 OpC 04 29 47 +16 56.9           ~ 2928 0
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 16507 1
6 NAME Gal Anticenter reg 05 46 +28.9           ~ 838 0
7 * alf CMa SB* 06 45 08.91728 -16 42 58.0171 -1.51 -1.46 -1.46 -1.46 -1.43 A0mA1Va 1488 0
8 Cl Berkeley 29 OpC 06 53 04.2 +16 55 39   14.3       ~ 167 0
9 NAME Saurer A Cluster OpC 07 20.9 +01 48           ~ 64 0
10 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13430 0
11 NAME SDG G 18 55 03.1 -30 28 42   4.5 3.6     ~ 2031 2
12 NAME Gaia Enceladus-Sausage St* ~ ~           ~ 352 0
13 NAME Triangulum-Andromeda Region reg ~ ~           ~ 81 0

To bookmark this query, right click on this link: simbad:objects in 2021A&A...649A...8G and select 'bookmark this link' or equivalent in the popup menu


2023.01.28-17:03:10

© Université de Strasbourg/CNRS

    • Contact