Milky Way Brazilian group meeting
May 6th 2024:
- Guilherme: Satellite group infall into the Milky Way: exploring the Crater-Leo case with new HST proper motions
- Guilherme: LAMOST J1010+2358 is not a Pair-Instability Supernova Relic
April 22nd 2024:
April 15th 2024:
- Eduardo: Detailed chemical composition of the globular cluster Sextans A GC-1 on the outskirts of the Local Group
- Guilherme: A New Tidal Stream Discovered in Gaia DR3
April 8th 2024:
- Lais: Stellar Mergers or Truly Young? Intermediate-Age Stars on Highly-Radial Orbits in the Milky Way’s Stellar Halo
- Gui: No top-heavy stellar initial mass function needed: the ionizing radiation of GS9422 can be powered by a mixture of AGN and stars
April 1st 2024:
- Fabricia: Stellar metallicities from SkyMapper photometry I: A study of the Tucana II ultra-faint dwarf galaxy
March 25th 2024:
March 18th 2024:
- Guilherme: Most of the photons that reionized the Universe came from dwarf galaxies
- Lais: A too-many dwarf galaxy satellites problem in the M83 group
March 11th 2024:
- Fabricia: Imprints of interaction processes in the globular cluster system of NGC 3640
- Joao: Taking the pulse of the outer Milky Way with HOWVAST: an RR Lyrae density profile out to >200 kpc
March 4th 2024:
February 26th 2024:
- Joao: Discovery of the local counterpart of disc galaxies at z > 4: The oldest thin disc of Milky Way using Gaia-RVS
- Guilherme: La Silla-QUEST RR Lyrae Star Survey II: The Crater II Tidal Streams
February 19th 2024:
- André: A strontium-rich ultra-metal-poor star in the Atari disc component
- Fred: Galaxy assembly revealed by globular clusters
February 5th 20204:
- Fabrícia: The Hubble Space Telescope Survey of M31 Satellite Galaxies. III. Calibrating the Horizontal Branch as an Age Indicator for Nearby Galaxies
- Eduardo: Measuring M31 globular cluster ages and metallicities using both photometry and spectroscopy
January 29th 2024:
- Laís: Structure, kinematics and time evolution of the Galactic Warp from Classical Cepheids
- João: Resolved SPLASH Chemodynamics in Andromeda’s PHAT Stellar Halo and Disk: On the Nature of the Inner Halo Along the Major Axis
January 22nd 2024:
- Guilherme: Spectacular nucleosynthesis from early massive stars
- Hélio: On the existence of a very metal-poor disc in the Milky Way
December 15th 2023:
December 8th 2023:
- Lais: Chemo-dynamical Nature of the Anticenter Stream and Monoceros Ring
- Hélio: Metal-poor stars with disc-like orbits. Traces of the Galactic Disc at very early epochs?
December 1st 2023:
- André: Could very low-metallicity stars with rotation-dominated orbits have been shepherded by the bar?
- Joao: Exploring the impact of a rapidly decelerating bar on transforming bulge orbits into disc-like orbits
November 24th 2023:
November 17th 2023:
November 10th 2023:
September 29th 2023:
- Lais: A Tilted Dark Halo Origin of the Galactic Disk Warp and Flare
- Hélio: Tilted Dark Halos are Common, Long-Lived, and can Warp Galactic Disks
September 15th 2023:
- Fabrícia: On the α/Fe bimodality of the M31 disks
August 25th 2023:
August 18th 2023:
- Eduardo: The dual nature of the tidal tails of NGC 5904 (M5)
- Eduardo: A cautionary lesson from Gaia systematics: the mono-metallic globular cluster NGC 5904
August 11th 2023:
August 4th 2023:
- Helio: On the likelihoods of finding very metal-poor (and old) stars in the Milky Way’s disc, bulge, and halo
- Helio: KPM: A Flexible and Data-Driven K-Process Model for Nucleosynthesis
July 14th 2023:
July 7th 2023:
June 30th 2023:
June 23th 2023:
- Helio: Can we really pick and choose? Benchmarking various selections of Gaia Enceladus/Sausage stars in observations with simulations
- Andre: Galactic ArchaeoLogIcaL ExcavatiOns (GALILEO) II. t-SNE Portrait of Local Fossil Relics and Structures
June 16th 2023:
- Guilherme: Summary of “Frontiers in Nuclear Astrophysics” & “NLTE Workshop”
June 2nd 2023:
May 26th 2023:
May 19th 2023:
- Fabricia: Characterising abundance-age relations of GALAH stars using oxygen-enhanced stellar models
May 12th 2023:
May 5th 2023:
April 28th 2023:
April 21st 2023:
April 14th 2023:
March 31st 2023:
- Fabrícia: A stellar halo walks into a bar: creation of substructure from a smooth distribution function
March 17th 2023:
March 10th 2023:
- Guilherme: Understanding the origin of CEMP-no stars through ultra-faint dwarfs
- Joao: Exploring the diversity and similarity of radially anisotropic Milky Way-like stellar haloes: implications for dwarf galaxy searches
March 3rd 2023:
February 24th 2023:
- Guilherme: Reconstructing the genesis of a globular cluster system at a look-back time of 9.1 Gyr with the JWST
- Joao: There is No Place Like Home – Finding Birth Radii of Stars in the Milky Way
February 17th 2023:
February 10th 2023:
February 3rd 2023:
January 27th 2023:
December 16th 2022:
December 2nd 2022:
- Guilherme: The observable properties of galaxy accretion events in Milky Way-like galaxies in the FIRE-2 cosmological simulations
- Joao: A Swing of the Pendulum: The Chemodynamics of the Local Stellar Halo Indicate Contributions from Several Radial Merger Events
November 18th 2022:
- Guilherme: What is Missing from the Local Stellar Halo?
November 11th 2022:
- Hélio: Chasing the impact of the Gaia-Sausage-Enceladus merger on the formation of the Milky Way thick disc
- Yuri: Spectroscopic follow-up of statistically selected extremely metal-poor star candidates from GALAH DR3
November 4th 2022:
- Leandro: DESI Observations of the Andromeda Galaxy: Revealing the Immigration History of our Nearest Neighbor
October 28th 2022:
October 21st 2022:
October 14th 2022:
October 7th 2022:
September 23rd 2022:
- Joao: The Poor Old Heart of the Milky Way
- Joao: Probing the Galactic halo with RR Lyrae stars − III. The chemical and kinematic properties of the stellar halo
September 2nd 2022:
August 19th 2022:
August 12th 2022:
August 5th 2022:
July 15th 2022:
July 8th 2022:
July 1st 2022:
June 24th 2022:
June 10th 2022:
June 3rd 2022:
May 27th 2022:
- Guilherme: [A trail of dark matter-free galaxies from a bullet dwarf collision (https://arxiv.org/abs/2205.08552)
May 20th 2022:
May 13th 2022:
April 29th 2022:
Aprtil 22nd 2022:
April 8th 2022:
April 1st 2022:
March 11 2022:
February 25th 2022:
February 18th 2022:
February 4th 2022:
January 28th 2022:
January 21st 20222:
- Lais: The outer disc in shambles: blind detection of Monoceros and ACS with Gaia’s astrometric sample
January 14th 2022:
December 17th 2021:
December 10th 2021:
- Hélio: Kinematics beats dust: unveiling nested substructure in the perturbed outer disc of the Milky Way
November 19th 2021:
November 5th 2021:
October 29th 2021:
October 15th 2021:
- Guilherme: A whirling plane of satellite galaxies around Centaurus A challenges cold dark matter cosmology.
October 8th 2021:
- Hélio: A New Set of Chisels for Galactic Archeology: Sc, V, and Zn as Taggers of Accreted Globular Clusters
October 1st 2021:
September 24th 2021:
September 10th 2021:
- Hélio: APOGEE-2 Discovery of a Large Population of Relatively High-Metallicity Globular Cluster Debris
September 3rd 2021:
- Guilherme: Reverse engineering the Milky Way
August 20th 2021:
July 30th 2021:
- Fabrícia: Relating the Diverse Merger Histories and Satellite Populations of Nearby Galaxies
- Joao: The Kinematic Properties of Milky Way Stellar Halo Populations
July 23th 2021:
- Guilherme: Identification of the Long Stellar Stream of the Prototypical Massive Globular Cluster ω Centauri
July 16th 2021:
July 9th 2021:
June, 25th 2021:
- Guilherme highlights on the GALAH Science Meeting II
June, 25th 2021:
- Guilherme & João highlights on the GALAH Science Meeting
June, 18th 2021:
June, 11th 2021:
June, 4th 2021:
- Guilherme: Chemodynamically Characterizing the Jhelum Stellar Stream with APOGEE-2
- Joao: Deciphering The Last Major Invasion of the Milky Way Galaxy
May, 28 2021:
May, 21 2021:
- Fernanda: The Sausage Globular Clusters
May, 14 2021:
May, 07 2021:
April, 30 2021:
- Yuri: On the Use of Field RR Lyrae as Galactic Probes. III. The α-element abundances
- Lais: Universal properties of the high- and low−α disk: small intrinsic abundance scatter and migrating stars
April, 23 2021:
- Guilherme: The GALAH Survey: No chemical evidence of an extragalactic origin for the Nyx stream
- Joao: Linking nearby stellar streams to more distant halo overdensities
April, 16 2021:
April, 09 2021:
March, 26th 2021:
- Joao & Guilherme: Reconstructing the Last Major Merger of the Milky Way with the H3 Survey
March, 12th 2021:
- Yuri: An extended halo around an ancient dwarf galaxy
- Joao: The Flare and Warp of the Young Stellar Disk traced with LAMOST DR5 OB-type stars
February, 26th 2021:
- Laís: Radial structure and formation of the Milky Way disc
- Joao: Tree-ring structure of Galactic bar resonance
February, 19th 2021:
February, 12th 2021:
February, 5th 2021:
January, 29th 2021:
- Joao: Ancient Very Metal-Poor Stars Associated With the Galactic Disk in the H3 Survey
- Lais: Exploring the Galactic Anticenter substructure with LAMOST & Gaia DR2
December, 11th 2020:
December, 4th 2020:
November, 27th 2020:
November, 20th 2020:
November, 6th 2020:
October 30th 2020:
- Guilherme: Origin of the system of globular clusters in the Milky Way
- Joao: Frequencies, chaos and resonances: a study of orbital parameters of nearby thick disc and halo stars
October 16th 2020:
- Guilherme: Galactic Archeology with the AEGIS Survey: The Evolution of Carbon and Iron in the Galactic Halo
October 9th 2020:
- Guilherme: The Most Metal-poor Stars in the Inner Bulge
October 2nd 2020:
September 18th 2020:
September 11th 2020:
- Hélio Perottoni: A revised view of the Canis Major stellar overdensity with DECam and Gaia: new evidence of a stellar warp of blue stars
September 4th 2020:
- Guilherme: The Southern Stellar Stream Spectroscopic Survey (S5): Chemical Abundances of Seven Stellar Streams
- Joao: Mapping the Galactic disk with the LAMOST and Gaia Red clump sample: V: On the origin of the “young” [α/Fe]-enhanced stars
August 28th 2020:
August 21th 2020:
August 7th 2020:
July 31st 2020
- Laís: A chemo-dynamical link between the Gjöll stream and NGC 3201
- Guilherme: The S2 Stream: the shreds of a primitive dwarf galaxy
July 24th 2020
- Hélio: Mapping the Galactic disk with the LAMOST and Gaia red clump sample: IV: the kinematic signature of the Galactic warp
- Joao: The heavy-elements heritage of the falling sky
July 16th 2020
- Hélio e Joao: Evidence from the H3 Survey that the Stellar Halo is Entirely Comprised of Substructure
June 26th 2020
June 19th 2020
- Hélio Perottoni: Galactic Archaeology with asteroseismic ages: evidence for delayed gas infall in the formation of the Milky Way disc
- Joao: Chemical Enrichment and Radial Migration in the Galactic Disk – the origin of the [α/Fe] Double Sequence
June 12th 2020
June, 5th 2020
- Joao: Chronologically dating the early assembly of the Milky Way
- Hélio Perottoni: The Galactic warp revealed by Gaia DR2 kinematics
May, 22th 2020
- Joao: The Pristine Dwarf-Galaxy survey – III. Revealing the nature of the Milky Way globular cluster Sagittarius II
- Hélio Perottoni: Common origin for Hercules-Aquila and Virgo Clouds in Gaia DR2
May, 15th 2020
May, 08th 2020
- Joao: Age dissection of the Milky Way discs: red giants in the Kepler field
- Hélio Perottoni: Chemo-dynamical properties of the Anticenter Stream: a surviving disc fossil from a past satellite interaction
May, 01st 2020
- Helio Rocha-Pinto: The recurrent impact of the Sagittarius dwarf on the Milky Way star formation history
- Joao: Timing the Early Assembly of the Milky Way with the H3 Survey
- Hélio Perottoni: Streams, substructures and the early history of the Milky Way (Part 3)
April, 24th 2020
- Joao: Fundamental relations for the velocity dispersion of stars in the Milky Way
- Hélio Perottoni: Streams, substructures and the early history of the Milky Way (Part 2)