Team Members:
| Gisella Clementini | Team leader, expertise in pulsating variable stars, distance scale, involved in Gaia and LSST/VRO |
| Richard Anderson | Core-team member, expertise in Cepheids, radial velocities, and the distance ladder |
| Stefano Casertano |
Core-team member, expertise in distance scale measurements, including empirical calibration of Galactic Cepheids
|
| Mariateresa Crosta | Core-team member, expertise in Relativistic astrometry, Local Cosmology, Gaia |
| Léo Girardi | Core-team member, expertise in stellar evolution models, population population effects, TRGB, LSST/VRO |
| Martin Groenewegen | Core-team member, interested in mass loss and the circumstellar shells of evolved stars, stellar populations, and the distance scale (Classical and Type-II Cepheids, Mira variables, TRGB). |
| Lucas Macri | Core-team member, expertise in extragalactic Cepheids |
| Marcella Marconi | Core-team member, expertise in stellar pulsation models and the distance scale problem, involved in Gaia and LSST/VRO. |
| Andrea Miglio | Core-team member, expertise in asteroseismology, stellar structure and evolution, stellar populations, Galactic archaeology |
| Benoît Mosser | Core-team member, expertise in Asteroseismology and analysis of seismic data. |
| Jeremy Mould | Core-team member, Gaia Calibration of Tip of the Red Giant Branch, SNe Ia |
| Adam Riess | Core-team member, expertise in distance scale, cosmology, JWST |
Early career researchers:
Giulia De Somma, Louise Breuval, Saniya Khan, Alessia Garofalo (see below)
Self-supported experts
Marco Bruni, Michele Trabucchi
|
Gisella Clementini
Affiliation: INAF- Osservatorio di Astrofisica e Scienza dello Spazio di Bologna (OAS-Bo) Role in the project: Team leader, expertise in pulsating variable stars, distance scale, involved in Gaia and LSST/VRO Current position: Associate Researcher at INAF OAS Bologna, Italy |
 credits: Mahdi Zamani (ESO) |
Richard Anderson
H1PStarsLaboratory of Astrophysics (LASTRO) Eccellenza Professorial Fellow & PI of ERC-StG
– Lead organizer of the ESO e-conference #H02020 “Assessing uncertainties in Hubble’s constant across the Universe”, June 2020, http://www.eso.org/sci/meetings/2020/H0/program.html
|
|
|
Stefano Casertano
Affiliation: Space Telescope Science Institute, Baltimore, USA Role in the project: Core team member, expertise in distance scale measurements, including empirical calibration of Galactic Cepheids Current position: Observatory Scientist, Space Telescope Science Institute. At STScI since 1994. |
 |
Mariateresa Crosta
Affiliation: INAF- Astrophysical Observatory of Turin (OATo), Italy My contribution to ISSI SH0T will focus on the evaluation of the Gaia absolute parallaxes as derived with the astrometric general relativistic models available, in particular those adopted in the Gaia Data Processing and Analysis Consortium (DPAC) for the next releases and for the related astrometric verifications. |
 |
Léo Girardi
Core-team member, expertise in stellar evolution models, population population effects, TRGB, LSST/VRO
Current position: Dirigente di ricerca at INAF Osservatorio Astronomico di Padova
|
 |
Martin Groenewegen
Martin Groenewegen obtained his doctorate in 1993 from the University of Amsterdam. After postdoctoral positions at the IAP, MPA, and KU Leuven he became a member of staff of the Royal Observatory of Belgium. His scientific interest are mass loss and the circumstellar shells of evolved stars, stellar populations, and the distance scale (Classical and Type-II Cepheids, Mira variables, TRGB). |
 |
Lucas Macri
Affiliation: US Extremely Large Telescope Program, NSF’s NOIRLab Research interests: Extragalactic Distance Scale — Statistical analysis of massive time-series photometry — Large-scale structure and galaxy flows — Electromagnetic follow-up of gravitational wave sources.
|
 |
Marcella Marconi
Affiliation: INAF-Osservatorio Astronomico di Capodimonte Role in the project: Core member team, expertise in stellar pulsation models and the distance scale problem, involved in Gaia and LSST/VRO. Current position: Dirigente di ricerca, INAF Osservatorio Astronomico di Capodimonte |
 |
Andrea Miglio
Affiliation: Alma Mater, Università di Bologna Role in the project: Core member team, expertise in asteroseismology, stellar structure and evolution, stellar populations, Galactic archaeology Current position: Professor |
 |
Jeremy Mould
Affiliation: Swinburne University Current position: Professor Emeritus |
 |
Benoît Mosser
Professor at the Observatory of Paris, stellar physicist at LESIA (Laboratory for Space Science and Astrophysical Instrumentation). Expert in the analysis of seismic data, especially for red giants that can probe distances up to the Magellanic clouds. |
 |
Adam Riess
Affiliations: Current Science Initiatives: Principle Investigator of SH0ES Team which has refined the Hubble constant (the present expansion rate of the Universe) to 2.4% precision through the competitive awarding of more than 800 orbits of Hubble Space Telescope time and 15 separate programs. Principal Investigator of the Higher-z SN Team which has found and measured the 20 most distant type Ia supernovae known through the competitive awarding of more than 800 orbits of Hubble Space Telescope Time in 5 cycles and $2M in grants since 2002.
|
Early career researchers:
|
Giulia De Somma:
Junior scientist with expertise in pulsating variable stars (particularly Classical Cepheids), the extragalactic distance scale and the Hubble constant tension problem. Involved in the Gaia mission and member of the LSST TVS collaboration. Current position: Cassini Fellow at INAF OACN, Napoli, Italy |
Alessia Garofalo:
Junior scientist with expertise in the characterization, validation and scientific exploitation of RR Lyrae stars and Cepheids observed by the Gaia mission. Member of the Gaia DPAC and involved in LSST@VRO. Current position: Fixed-term researcher at INAF OAS, Bologna, Italy
|
Louise Breuval: Postdoctoral Researcher at the Johns Hopkins University (2022-2024). ESA Research Fellow (2025-2027) at Space Telescope Science Institute. Member of the SH0ES Team. Expertise in Cepheids, the distance ladder, open clusters, metallicity effects.
|
Saniya Khan
|
|
Self-supported experts
Marco Bruni
Affiliation: University of Portsmouth
| Michele Trabucchi
Affiliation: University of Padova
|
