Looking into the faintEst WIth muSe (LEWIS): on the nature of ultra-diffuse galaxies in the Hydra-I cluster
LEWIS
Progetto
Infrastruttura Internazionale
RSN1
Attività: In Itinere; Data inizio: 2021; Data fine: 2024
enrichetta.iodice enrichetta.iodice@inaf.it
LEWIS is a large program, approved in the ESO period 108, to obtain the first homogeneous integral-field spectroscopic survey of ultra-diffuse galaxies (UDGs) in the Hydra I cluster of galaxies with MUSE@ESO-VLT. The new sample of 32 UDG candidates have been recently discovered inside 0.6 virial radius of the cluster. UDGs are empirically defined to be faint (μ0,g ≥ 24 mag/arcsec^2) and diffuse (Re ≥ 1.5 kpc) objects, with stellar masses similar to dwarf galaxies. For all UDGs in Hydra I, the MUSE data will confirm the cluster membership, measure their stellar kinematics and stellar populations. The stellar population properties and the baryonic versus dark matter fraction will be compared with hydrodynamical models of UDGs to probe their formation channels.
Ammassi, struttura a grande scala dell Universo e mezzo intergalattico
Galassie, AGN e loro evoluzione
Popolazioni e ammassi stellari galattici ed extragalattici
Struttura | Nfte | N0 | TI 2023 | TI 2024 | TI 2025 | TD 2023 | TD 2024 | TD 2025 | Nex | Extra |
---|---|---|---|---|---|---|---|---|---|---|
O.A. CAPODIMONTE | 9 | 0 | 0.60 | 0.60 | 0.40 | 2.20 | 2.20 | 0.80 | 0 | 0.00 |
O.A. PADOVA | 4 | 0 | 0.40 | 0.30 | 0.00 | 0.10 | 0.10 | 0.00 | 0 | 0.00 |
O.A. ABRUZZO | 2 | 0 | 0.10 | 0.10 | 0.00 | 0.60 | 0.60 | 0.30 | 0 | 0.00 |
Totali | 15 | 0 | 1.10 | 1.00 | 0.40 | 2.90 | 2.90 | 1.10 | 0 | 0.00 |
Certi 2023 | Certi 2024 | Certi 2025 | Presunti 2023 | Presunti 2024 | Presunti 2025 |
---|---|---|---|---|---|
105.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
<p>Extragalactic astronomy; Galaxies: Dwarf galaxies; Low surface brightness galaxies; Galaxy photometry; Galaxy formation; Galaxy clusters.<br></p>
<p align="justify">The LEWIS large program is led by an INAF staff astronomer, E. Iodice, from the Astronomical Observatory of Capodimonte (Naples). As reported in Tab.1, the 30% of the team (8 out of 27 members) are INAF staff astronomers from three INAF institutes (Naples, Teramo and Padova). Taking into account the INAF associates in the team, which are eight in total, the INAF contribution to the project is 60%. </p><p align="justify">All the three WPs are led by INAF staff astronomers in the team, which are the main experts in the field of stellar kinematics, stellar populations and GCs science. In addition, one of the INAF associate, Dr. G. D’Ago, has developed an ad-hoc Python-based pipeline to perform a full-spectral fitting and derive the line-of-sight velocity and velocity dispersion. This pipeline, named MagicGui (D’Ago et al. in prep.) is going to be used for the LEWIS data analysis.<br></p>
<p>MUSE@ESO-VLT<br></p>
# | Nome | Struttura | TI | Qualifica | Ruolo nel Progetto | FTE Impegnate (2023/2024/2025) | FTE Presunte (2023/2024/2025) | Extra | ||
---|---|---|---|---|---|---|---|---|---|---|
1 | enrichetta.iodice | enrichetta.iodice@inaf.it | O.A. CAPODIMONTE | Y | RICERCATORE | PI | X X X | X X X | X | |
2 | marilena.spavone | marilena.spavone@inaf.it | O.A. CAPODIMONTE | Y | TECNOLOGO | data reduction & WP1 | X X X | X X X | X | |
3 | laura.greggio | laura.greggio@oapd.inaf.it | O.A. PADOVA | Y | PRIMO RICERCATORE | WP2 | X X X | X X X | X | |
4 | roberto.rampazzo | roberto.rampazzo@inaf.it | O.A. PADOVA | Y | RICERCATORE ASTRONOMO | WP1 | X X X | X X X | X | |
5 | marco.gullieuszik | marco.gullieuszik@inaf.it | O.A. PADOVA | Y | RICERCATORE | data reduction & lead of WP2 | X X X | X X X | X | |
6 | michele.cantiello | michele.cantiello@inaf.it | O.A. ABRUZZO | Y | RICERCATORE | lead WP3 | X X X | X X X | X | |
7 | giuseppe.dago | peppe.zeppelin@gmail.com | O.A. CAPODIMONTE | N | ASSOCIATO ADR UNIVERSITA / ENTI | data reduction & WP2 | X X X | X X X | X | |
8 | maurizio.paolillo | paolillo@na.infn.it | O.A. CAPODIMONTE | N | ASSOCIATO CON INCARICO DI RICERC | WP3 | X X X | X X X | X | |
9 | giulio.capasso | giulio.capasso@inaf.it | O.A. CAPODIMONTE | Y | TECNOLOGO | Data management | X X X | X X X | X | |
10 | chiara.spiniello | chiara.spiniello@gmail.com | O.A. CAPODIMONTE | N | ASSOCIATO | WP2 | X X X | X X X | X | |
11 | enrico.corsini | enricomaria.corsini@unipd.it | O.A. PADOVA | N | ASSOCIATO | team member | X X X | X X X | X | |
12 | marco.mirabile | marco.mirabilel@inaf.it | O.A. ABRUZZO | N | ASSOCIATO - DOTTORANDO STRUTTURE | PhD student WP3 | X X X | X X X | X | |
13 | nicola.bellucco | nicola.bellucco.1@studenti.unipd.it | O.A. CAPODIMONTE | N | ASSOCIATO - DOTTORANDO STRUTTURE | PhD student | X X X | X X X | X | |
14 | chiara.buttitta | chiara.buttitta@inaf.it | O.A. CAPODIMONTE | N | ASSEGNISTA | post-doc WP1 | X X X | X X X | X | |
15 | goran.dollcarriel | gedoll@uc.cl | O.A. CAPODIMONTE | N | ASSOCIATO - DOTTORANDO STRUTTURE | PhD student WP2 | X X X | X X X | X |
# | Nome | Struttura | TI | Qualifica | Ruolo nel Progetto | FTE Impegnate (2023/2024/2025) | FTE Presunte (2023/2024/2025) | Extra |
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LEWIS has been financed with a GO large grant, responding at the INAF call in 2022. In addition, the first in-person LEWIS meeting, scheduled on April 4-5 2023, at INAF-Astronomical Observatory of Capodimonte, has been funded with 2625 euro by the INAF director for science, following the call for funds proposals for meetings and conferences in 2023.
# | Provenienza | Certi 2023 (k€) | Certi 2024 (k€) | Certi 2025 (k€) | Presun. 2023 (k€) | Presun. 2024 (k€) | Presun. 2025 (k€) | Totale Certi (k€) | Totale Presunti (k€) |
---|---|---|---|---|---|---|---|---|---|
1 | INAF | 5 | 0 | 0 | 0 | 0 | 0 | 5 | 0 |
# | Provenienza | Fondi 2023 (€) | Fondi 2024 (€) | Fondi 2025 (€) |
---|---|---|---|---|
1 | INAF - GTO / GO Grant (large) | 100000.0 |