Alessandro Romeo

Associate Professor at Astronomy and Plasmaphysics

Alessandro explores the birth, life, and death of galaxies in the Universe, focusing on the link between star formation, gravitational instability and interstellar turbulence.

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Showing 49 publications

2023

The specific angular momentum of disc galaxies and its connection with galaxy morphology, bar structure, and disc gravitational instability

Alessandro Romeo, Oscar Agertz, Florent Renaud
Monthly Notices of the Royal Astronomical Society. Vol. 518 (1), p. 1002-1021
Journal article
2022

From giant clumps to clouds - III. The connection between star formation and turbulence in the ISM

Timmy Ejdetjarn, Oscar Agertz, Goran Ostlin et al
Monthly Notices of the Royal Astronomical Society. Vol. 514 (1), p. 480-496
Journal article
2022

Investigating the link between inner gravitational potential and star-formation quenching in CALIFA galaxies

V Kalinova, D. Colombo, S. F. Sanchez et al
Astronomy and Astrophysics. Vol. 665
Journal article
2021

From giant clumps to clouds - I. The impact of gas fraction evolution on the stability of galactic discs

Florent Renaud, Alessandro Romeo, Oscar Agertz
Monthly Notices of the Royal Astronomical Society. Vol. 508 (1), p. 352-370
Journal article
2020

From massive spirals to dwarf irregulars: a new set of tight scaling relations for cold gas and stars driven by disc gravitational instability

Alessandro Romeo
Monthly Notices of the Royal Astronomical Society. Vol. 491 (4), p. 4843-4851
Journal article
2020

From lenticulars to blue compact dwarfs: The stellar mass fraction is regulated by disc gravitational instability

Alessandro Romeo, O. Agertz, Florent Renaud
Monthly Notices of the Royal Astronomical Society. Vol. 499 (4), p. 5656-5664
Journal article
2019

On the observed diversity of star formation efficiencies in Giant Molecular Clouds

Kearn Grisdale, O. Agertz, Florent Renaud et al
Monthly Notices of the Royal Astronomical Society. Vol. 486 (4), p. 5482-5491
Journal article
2019

The stellar velocity dispersion in nearby spirals: radial profiles and correlations

Keoikantse Moses Mogotsi, Alessandro Romeo
Monthly Notices of the Royal Astronomical Society. Vol. 489 (3), p. 3797-3809
Journal article
2018

Angular momentum and local gravitational instability in galaxy discs: does Q correlate with j or M ?

Alessandro Romeo, Keoikantse Moses Mogotsi
Monthly Notices of the Royal Astronomical Society: Letters. Vol. 480 (1), p. L23-L27
Journal article
2018

Physical properties and scaling relations of molecular clouds: the effect of stellar feedback

Kearn Grisdale, Oscar Agertz, Florent Renaud et al
Monthly Notices of the Royal Astronomical Society. Vol. 479 (3), p. 3167-3180
Journal article
2017

The impact of stellar feedback on the density and velocity structure of the interstellar medium

Kearn Grisdale, Oscar Agertz, Alessandro Romeo et al
Monthly Notices of the Royal Astronomical Society. Vol. 466 (1), p. 1093-1110
Journal article
2017

What drives gravitational instability in nearby star-forming spirals? The impact of CO and HI velocity dispersions

Alessandro Romeo, Keoikantse Moses Mogotsi
Monthly Notices of the Royal Astronomical Society. Vol. 469 (1), p. 286-294
Journal article
2016

Chemodynamic Evolution Of Dwarf Galaxies In Tidal Fields

David Williamson, Hugo Martel, Alessandro Romeo
Astrophysical Journal. Vol. 831 (1), p. 1 (15 pp)-
Journal article
2016

What powers the starburst activity of NGC 1068? Star-driven gravitational instabilities caught in the act

Alessandro Romeo, K. Fathi
Monthly Notices of the Royal Astronomical Society. Vol. 460 (3), p. 2360-2367
Journal article
2015

Characterizing gravitational instability in turbulent multicomponent galactic discs

Oscar Agertz, Alessandro Romeo, Kearn Grisdale
Monthly Notices of the Royal Astronomical Society. Vol. 449 (2), p. 2156-2166
Journal article
2015

A double molecular disc in the triple-barred starburst galaxy NGC 6946: structure and stability

Alessandro Romeo, K. Fathi
Monthly Notices of the Royal Astronomical Society. Vol. 451 (3), p. 3107-3116
Journal article
2015

LOCAL INSTABILITY SIGNATURES IN ALMA OBSERVATIONS OF DENSE GAS IN NGC 7469

K. Fathi, T. Izumi, Alessandro Romeo et al
Astrophysical Journal. Vol. 806 (2), p. L34 (6pp)-
Journal article
2014

Larson's scaling laws, and the gravitational instability of clumpy discs at high redshift

Alessandro Romeo, Oscar Agertz
Monthly Notices of the Royal Astronomical Society. Vol. 442 (2), p. 1230-1238
Journal article
2013

A simple and accurate approximation for the Q stability parameter in multicomponent and realistically thick discs

Alessandro Romeo, Niklas Falstad
Monthly Notices of the Royal Astronomical Society. Vol. 433 (2), p. 1389-1397
Journal article
2012

The effect of ISM turbulence on the gravitational instability of galactic discs

Volker Hoffmann, Alessandro Romeo
Monthly Notices of the Royal Astronomical Society. Vol. 425 (2), p. 1511-1520
Journal article
2011

Virtual Universes

Oscar Agertz, Alessandro Romeo
Tofsen (4), p. 38-39
Magazine article
2011

The effective stability parameter for two-component galactic discs: is 1/Q ~ 1/Q_stars + 1/Q_gas ?

Alessandro Romeo, Joachim Wiegert
Monthly Notices of the Royal Astronomical Society. Vol. 416 (2), p. 1191-1196
Journal article
2010

A Toomre-like stability criterion for the clumpy and turbulent interstellar medium

Alessandro Romeo, A. Burkert, O. Agertz
Monthly Notices of the Royal Astronomical Society. Vol. 407 (2), p. 1223-1230
Journal article
2009

A New Smoothing Algorithm and its Application in Gravitational Lensing

Y. Yang, G. Li, Alessandro Romeo
Chinese Astronomy and Astrophysics. Vol. 33 (2), p. 121-132
Journal article
2009

Large-scale galactic turbulence: can self-gravity drive the observed HI velocity dispersions?

O. Agertz, G. Lake, R. Teyssier et al
Monthly Notices of the Royal Astronomical Society. Vol. 392 (1), p. 294-308
Journal article
2009

Turbulence in galactic disks: The role of self-gravity and supernova feedback

O. Agertz, G. Lake, B. Moore et al
The Galaxy Disk in Cosmological Context - Proceedings IAU Symposium No. 254, 2008 - J. Andersen, J. Bland-Hawthorn & B. Nordstro"m, eds, p. 505-508
Paper in proceeding
2009

Discreteness effects in LambdaCDM simulations

Alessandro Romeo, O. Agertz, B. Moore et al
The Galaxy Disk in Cosmological Context - Proceedings IAU Symposium No. 254, 2008 - J. Andersen, J. Bland-Hawthorn & B. Nordstro"m, eds, p. 505-508
Paper in proceeding
2008

Discreteness effects in LambdaCDM simulations: A wavelet-statistical view

Alessandro Romeo, O. Agertz, B. Moore et al
Astrophysical Journal. Vol. 686 (1), p. 1-12
Journal article
2008

A new smoothing algorithm and its application in gravitational lensing

Y. Yang, G. Li, Alessandro Romeo
Acta Astronomica Sinica. Vol. 49 (4), p. 359-369
Journal article
2005

ReadMe: JOFILUREN - A wavelet add-on code for new-generation N-body simulations and data de-noising

Alessandro Romeo
www.oso.chalmers.se/~romeo/JOFILUREN/readme-file.ps
Magazine article
2004

A wavelet add-on code for new-generation N-body simulations and data de-noising (JOFILUREN)

Alessandro Romeo, Cathy Horellou, Jöran Bergh
Monthly Notices of the Royal Astronomical Society. Vol. 354 (4), p. 1208-1222
Journal article
2003

N-body simulations with two-orders-of-magnitude higher performance using wavelets

Alessandro Romeo, Cathy Horellou, Jöran Bergh
Monthly Notices of the Royal Astronomical Society. Vol. 342 (2), p. 337-344
Journal article
2002

Properties of galaxy haloes in clusters and voids

V. Antonuccio-Delogu, U. Becciani, E. van Kampen et al
Monthly Notices of the Royal Astronomical Society. Vol. 332 (1), p. 7-20
Journal article
2000

Astrophysical Dynamics 1999/2000: Merging Research and Education

Alessandro Romeo
arXiv:physics/0006023
Magazine article
1999

MY LIFE AS TUTOR: Reflections on Two Recent Experiences

Alessandro Romeo
arXiv:physics/9906028
Magazine article
1998

N-Body simulations of disc galaxies can shed light on the Dark-Matter problem

Alessandro Romeo
Dark matter : proceedings of DM97, 1st Italian conference on dark matter, Trieste, December 9-11, 1997 / editor, Paolo Salucci. Firenze, Italy : Studio Editoriale Fiorentino, p. 177-182
Paper in proceeding
1998

Modelling gravity in N-body simulations of disc galaxies. Optimal types of softening for given dynamical requirements

Alessandro Romeo
Astronomy and Astrophysics. Vol. 335, p. 922-928
Journal article
1997

Dynamical effects of softening in N-body simulations of disc galaxies. Method and first applications.

Alessandro Romeo
Astronomy and Astrophysics. Vol. 324, p. 523-533
Journal article
1995

How faithful are N-body simulations of disc galaxies? Artificial suppression of dynamical instabilities.

Alessandro Romeo
Astronomical & Astrophysical Transactions: The Journal of the Eurasian Astronomical Society. Vol. 7 (4), p. 317 - 321
Paper in proceeding
1994

How faithful are N-body simulations of disc galaxies? -- Artificial suppression of gaseous dynamical instabilities

Alessandro Romeo
Astrophysics and Space Science. Vol. Volume 216 (1-2), p. 353-357
Paper in proceeding
1994

How faithful are N-body simulations of disc galaxies?

Alessandro Romeo
Astronomy and Astrophysics. Vol. 286, p. 799-806
Journal article
1994

How Faithful Are N-Body Simulations of Disc Galaxies? - Artificial Suppression of Stellar Dynamical Instabilities

Alessandro Romeo
Ergodic Concepts in Stellar Dynamics - Lecture Notes in Physics. Vol. 430, p. 257-260
Paper in proceeding
1992

Stability of thick two-component galactic discs

Alessandro Romeo
Monthly Notices of the Royal Astronomical Society. Vol. 256 (2), p. 307-320
Journal article
1988

Global spiral modes in stellar disks containing gas

G. Bertin, Alessandro Romeo
Astronomy and Astrophysics. Vol. 195, p. 105-113
Journal article

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