Milky Way and Nearby Galaxies

Start year
1994
Organizational Unit
    General
    Description

    The overall aim of the project is to study the morphology, stellar populations, kinematics and dynamics (including formation and evolution) of the Milky Way and its satellite galaxies and other Local Group galaxies. The project can be divided into two main lines:
     

    I. Structure of the Milky Way and nearby galaxies.
    The detailed study of the morphology aims to provide a database of stellar distribution in the outermost and extinct regions of our Galaxy or in other galaxies. A combination of our own data are used together with public photometric (UKIDSS, VISTA-VVV near-infrared or SDSS) or spectroscopic (SDSS-APOGEE near-infrared, LAMOST) catalogues. The research group has also been integrated in the Spanish "Gaia" node with the idea of orienting part of our work in the scientific exploitation of the photometric and astrometric data of the most important survey for Galactic studies: the Gaia mission. Detailed information is available on the stellar distribution of the dominant stellar populations over a wide area of sky, covering different structural components in the Milky Way: triaxial bulge, long bar, disc, spiral arms, halo. The gas and dust components are also studied in infrared, or in microwave (Galactic contamination studies of the cosmic microwave background, for example with Planck data). 

     

    II. Dynamical studies and studies of the formation and evolution of galactic components.
    The kinematic and dynamical analyses aim at understanding the origin of the observed structures andtheir time evolution. The velocity maps of the Milky Way (obtained with Gaia data and complemented with spectroscopic data that allow a better determination of radial velocities, or to separate populations with different ages or metallicities) can be fitted with different theoretical scenarios to determine whether the Milky Way is in equilibrium or not, the origin of its warping, etc.

    Principal investigator
    Project staff

    Related publications

    Displaying 1 - 40 of 191
    An Alternative Explanation for the Helium Star Pulsar Binary J1928+1815: The Most Heavyweight Black Widow System to Date 2025ApJ...995...78G
    Hayabusa2 extended mission target asteroid 1998 KY<SUB>26</SUB> is smaller and rotating faster than previously known 2025NatCo..16.8275S
    The Structure, Populations, and Kinematics of the Milky Way Central and Inner Bulge with OGLE, APOGEE, and Gaia Data 2025ApJ...985...32H
    Milky Way Dark Matter Distribution or MOND Test from Vertical Stellar Kinematics with Gaia DR3 2025ApJ...978...45L
    The baryonic mass estimates of the Milky Way halo in the form of high-velocity clouds 2025NewA..11502328T
    AGN feedback can produce metal enrichment on galaxy scales 2024A&A...690A.397V
    Proper Motions and Orbits of Distant Local Group Dwarf Galaxies from a Combination of Gaia and Hubble Data 2024ApJ...971...98B
    HST Survey of the Orion Nebula Cluster in ACS/Visible and WFC3/IR Bands. IV. A Bayesian Multiwavelength Study of Stellar Parameters in the Orion Nebula Cluster 2024ApJ...967...52S
    Stellar halo density with LAMOST K and M giants 2024A&A...684A.135L
    The black widow pulsar J1641+8049 in the optical, radio, and X-rays 2024MNRAS.527.4563K
    Discovery of an X-Ray Photoionized Optical Nebula and a Radio Nebula Associated with the ULX NGC 4861 X-1 2023ApJ...958...24G
    Internal kinematics of dwarf satellites of MW/M31-like galaxies in TNG50 2023MNRAS.526.3589M
    Panning for gold, but finding helium: Discovery of the ultra-stripped supernova SN 2019wxt from gravitational-wave follow-up observations 2023A&A...675A.201A
    Limited impact of jet-induced feedback in the multi-phase nuclear interstellar medium of 4C12.50 2023A&A...673A..25V
    Mass Models of the Milky Way and Estimation of Its Mass from the Gaia DR3 Data Set 2023ApJ...945....3S
    The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. XXIV. Differences in Internal Kinematics of Multiple Stellar Populations 2023ApJ...944...58L
    Evidence for Population-dependent Vertical Motions and the Long-lived Nonsteady Lopsided Milky Way Warp 2023ApJ...943...88L
    Mapping the Milky Way Disk with Gaia DR3: 3D Extended Kinematic Maps and Rotation Curve to ≈30 kpc 2023ApJ...942...12W
    Tidally induced velocity gradients in the Milky Way dwarf spheroidal satellites 2023MNRAS.518.3083M
    EMIR, the near-infrared camera and multi-object spectrograph for the GTC. EMIR at GTC 2022A&A...667A.107G
    Analysing the structure of the bulge with Mira variables 2022A&A...666L..13C
    StraKLIP: A Novel Pipeline for Detection and Characterization of Close-in Faint Companions through the Karhunen-Loéve Image Processing Algorithm 2022AJ....164..147S
    The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. XXIII. Proper-motion Catalogs and Internal Kinematics 2022ApJ...934..150L
    Warp and flare of the Galactic disc revealed with supergiants by Gaia EDR3 2022A&A...664A..58C
    Detection of Gravitational Redshift in Open Cluster Nondegenerate Stars 2022ApJ...929...29G
    SEGUE-2: Old Milky Way Stars Near and Far 2022ApJS..259...60R
    Internal rotation of Milky Way dwarf spheroidal satellites with Gaia Early Data Release 3 2021MNRAS.505.5884M
    Constraining the solar neighbourhood age-metallicity relation from white dwarf-main sequence binaries 2021MNRAS.505.3165R
    Exploring nine simultaneously occurring transients on April 12th 1950 2021NatSR..1112794V
    The Cluster HEritage project with XMM-Newton: Mass Assembly and Thermodynamics at the Endpoint of structure formation. I. Programme overview 2021A&A...650A.104C
    Interactions between large-scale radio structures and gas in a sample of optically selected type 2 quasars 2021A&A...650A..84V
    A Case against a Significant Detection of Precession in the Galactic Warp 2021ApJ...912..130C
    Exact Semianalytical Calculation of Rotation Curves with Bekenstein-Milgrom Nonrelativistic MOND 2021ApJ...909..137L
    Multiple Populations in Low-mass Globular Clusters: Palomar 13 2021ApJ...908..220T
    Updated BaSTI Stellar Evolution Models and Isochrones. II. α-enhanced Calculations 2021ApJ...908..102P
    PSR B0656+14: the unified outlook from the infrared to X-rays 2021MNRAS.502.2005Z
    HST Survey of the Orion Nebula Cluster in the H<SUB>2</SUB>O 1.4 μm Absorption Band. III. The Population of Substellar Binary Companions 2020ApJ...896...81S
    Statistical analysis of Galactic globular cluster type properties 2020MNRAS.495.3981S
    The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. XX. Ages of Single and Multiple Stellar Populations in Seven Bulge Globular Clusters 2020ApJ...891...37O
    The star formation history of the Sculptor dwarf spheroidal galaxy 2019MNRAS.487.5862B