154 citations · 469 across the 18 of their papers we have counts for
19 papers
Euclid: Data Release 1 (DR1) -- Fornax-7, an ultra-faint companion to the Fornax dwarf spheroidal galaxy? A remote star cluster or dwarf satellite of the Fornax dSph
T. Saifollahi, A. Lançon, A. M. N. Ferguson +165
We report the discovery of an ultra-faint stellar system in the vicinity of the Fornax dwarf spheroidal (dSph) galaxy in Euclid DR1. This system, which we designate Fornax-7, is lo…
Euclid: The convective-transition gap of 47 Tuc
M. Libralato, M. Griggio, R. Gerasimov +140
We report the first detection of the `convective-transition gap' (also known as `M-dwarf gap') in the globular cluster 47 Tuc (NGC 104) thanks to Euclid data. This feature, linked…
The Pristine Dwarf Galaxy Survey -- VII. The metallicity distributions of 12 Milky Way faint satellites
S. Taibi, P. Jablonka, N. Longeard +10
Spectroscopic studies of ultra-faint dwarf galaxies are typically limited to small samples of stars due to the scarcity of sufficiently bright targets. The small number statistics…
Multi-component, axisymmetric dynamical models of dSphs based on distribution functions: inferences on dark matter and intermediate-mass black holes in Draco and Ursa Minor
R. Pascale, G. Battaglia, J. M. Arroyo-Polonio +3
Dwarf spheroidal galaxies (dSphs) are prime laboratories for studying dark matter (DM) and the black hole demographics in the low-mass regime. These systems are also often flattene…
Euclid: Early Release Observations -- The extended stellar component of the IC10 dwarf galaxy
F. Annibali, A. M. N. Ferguson, P. M. Sanchez-Alarcon +175
We present a detailed analysis of the old, extended stellar component of the Local Group dwarf galaxy IC 10 using deep resolved-star photometry in the VIS and NISP bands of the Euc…
Why the Northern Hemisphere Needs a 30-40 m Telescope and the Science at Stake: Resolved Stellar Populations Studies in M31 and its Satellites
C. Gallart, E. Fernández-Alvar, A. B. A. Queiroz +48
A 30 m class optical/near-IR telescope in the Northern Hemisphere, equipped for diffraction-limited imaging and high-resolution, multi-object spectroscopy of faint stars, would ena…
SpectroTranslator: a deep-neural network algorithm to homogenize spectroscopic parameters
G. F. Thomas, G. Battaglia, F. Gran +8
The emergence of large spectroscopic surveys requires homogenising on the same scale the quantities they measure in order to increase their scientific legacy. We developed the Spec…
From gas to stars: MUSEings on the internal evolution of IC 1613
S. Taibi, G. Battaglia, M. M. Roth +9
The kinematics and chemical composition of stellar populations of different ages provide crucial information about the evolution of a galaxy. We aim to provide such information for…
A probabilistic deep learning model to distinguish cusps and cores in dwarf galaxies
J. Expósito-Márquez, C. B. Brook, M. Huertas-Company +4
Numerical simulations within a cold dark matter (DM) cosmology form halos whose density profiles have a steep inner slope (`cusp'), yet observations of galaxies often point towards…
Metallicity profiles of Ultra Diffuse Galaxies in NIHAO simulations
S. Cardona-Barrero, A. Di Cintio, G. Battaglia +2
Supernovae feedback driven expansion has proven to be a viable mechanism to explain the average properties of Ultra Diffuse Galaxies (UDGs) such as the sizes, colors, mass and inte…
The stellar metallicity gradients of Local Group dwarf galaxies
S. Taibi, G. Battaglia, R. Leaman +5
Through a homogeneous analysis of spectroscopic literature data of red giant stars, we determine the radial metallicity profiles of 30 dwarf galaxies in the Local Group. We explore…
Survey of Surveys I: The largest catalogue of radial velocities for the Galaxy
M. Tsantaki, E. Pancino, P. Marrese +8
In the present-day panorama of large spectroscopic surveys, the amount, diversity, and complexity of the available data continuously increase. We present a comprehensive catalogue,…
Variable stars in Local Group Galaxies -- V. The fast and early evolution of the low-mass Eridanus II dSph galaxy
C. E. Martínez-Vázquez, M. Monelli, S. Cassisi +18
We present a detailed study of the variable star population of Eridanus II (Eri II), an ultra-faint dwarf galaxy that lies close to the Milky Way virial radius. We analyze multi-ep…
Gaia early DR3 systemic motions of Local Group dwarf galaxies and orbital properties with a massive Large Magellanic Cloud
G. Battaglia, S. Taibi, G. F. Thomas +1
We perform a comprehensive determination of the systemic proper motions of 74 dwarf galaxies and dwarf galaxy candidates in the Local Group based on Gaia early data release 3. The…
Dissecting the stellar content of Leo I: a dwarf irregular caught in transition
T. Ruiz-Lara, C. Gallart, M. Monelli +7
Leo I is considered one of the youngest dwarf spheroidals (dSph) in the Local Group. Its isolation, extended star formation history (SFH), and recent perigalacticon passage (~1 Gyr…
Kinematic and metallicity properties od the Aquarius dwarf galaxy from FORS2 MXU spectroscopy
L. Hermosa Muñoz, S. Taibi, G. Battaglia +10
Dwarf galaxies found in isolation in the Local Group (LG) are unlikely to have interacted with the large LG spirals, and therefore environmental effects should not be the main driv…
A Gaia DR 2 and VLT/FLAMES search for new satellites of the LMC
T. K. Fritz, R. Carrera, G. Battaglia +1
A wealth of tiny galaxies populates the surroundings of the Milky Way. Some of these objects might have their origin as former satellites of the Large Magellanic Cloud. Examples of…
Tracing the stellar component of low surface brightness Milky Way Dwarf Galaxies to their outskirts I: Sextans
L. Cicuendez, G. Battaglia, M. Irwin +12
We present results from deep and very spatially extended CTIO/DECam and photometry (reaching out to 2 mag below the oldest MSTO and covering 20 deg) aroun…
The StEllar Counterparts of COmpact high velocity clouds (SECCO) survey. I. Photos of ghosts
M. Bellazzini, G. Beccari, G. Battaglia +6
We present an imaging survey aimed at searching for the stellar counterparts of recently discovered ultra-compact high-velocity HI clouds (UCHVC). Adams et al. (2013) proposed thes…