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Prof Anthony P Whitworth


Prof Anthony P Whitworth Email:Anthony.Whitworth ( at )
Telephone:029 208 74798

Research Interests

My main research interest is the theory of the formation of stars, brown dwarfs and planets, in particular the roles played by impulsive dynamical processes, magnetic fields, thermal physics, radiation transport and feedback, in determining the masses, clustering and binary properties of stars. I make extensive use of computer simulations, combined with other theoretical and statistical tools, and I enjoy close collaborations with the observers in the School. I am also interested in stellar evolution, interstellar matter, and galactic structure.

Measures of Esteem

I have been invited to present papers at many international conferences, including `IAU Symposium 237: Triggered Star Formation in a Turbulent IsM' in Prague in 2006; `Protostars and Planets V' in Hawai'i in 2005; `The Young Local Universe' in Aosta in 2004;`Cores to clusters: star formation with next generation telescopes' in Porto in 2004, `IAU Symposium 208: Astrophysical Supercomputing using particle simulations' in Tokyo in 2001; and `From darkness to light: the origin of young star clusters' in Corsica in 2001. I have served on several research committees, panels etc., including the European Commission Physics Panel, the PPARC Astronomy Theory Sub Panel, the HECToR Science Committee, and the UKAFF TAC. I have been Visiting Professor at the Ecole Normale Superieure in Paris.


I teach a 1st-year course on `Mathematical Physics', a 3rd-year course on `Stellar Structure', a 4th-year course on `The Interstellar Medium and Star Formation', and a postgraduate course on `Star Formation'.. I give tutorials to 1st- and 2nd-year undergraduates, and supervise 3rd- and 4th-year undergraduate projects.

Admin Duties

I am in charge of Postgraduate Admissions. I have previously been in charge of Undergraduate Admissions, Examinations and Timetabling. I have served on the Departmental Board, the Course Committee, the Library Committee, the Staff-Student Panel, and the Computing Committee.


Stamatellos D, Hubber DA, Whitworth AP, 2007, MNRAS, 382, L30: `Brown dwarf formation by gravitational fragmentation of massive, extended protostellar discs'

Stamatellos D, Whitworth AP, Bisbas T, Goodwin SP, 2007, A&A, 475, 37: `Radiative transfer and the energy equation in SPH simulations of star formation'

Stamatellos D, Whitworth AP, Ward-Thompson D, 2007, MNRAS, 379, 1390: `The dust temperatures of the pre-stellar cores in the ρ Oph main cloud and in other star-forming regions: consequences for the core mass function'

Dale JE, Bonnell IA, Whitworth AP, 2007, MNRAS, 375, 1291: `Ionization-induced star formation - I. The collect-and-collapse model'

Whitworth AP, 2007, IAU Symposium 237 (Eds. B Emlegreen, J Palous; CUP, Cambridge) p.251: `Triggered formation and collapse of molecular cloud cores'

Attwood RE, Goodwin SP, Whitworth AP, 2007, A&A, 464, 447: `Adaptive smoothing lengths in SPH'

Whitworth AP, Bate MR, Nordlund A, Reipurth B, Zinnecker H, 2007, Protostars and Planets V (Eds. B Reipurth, D Jewitt, K Keil; Univ. Arizona Press, Tucson) p.459: `The Formation of Brown Dwarfs: Theory'

Whitworth AP, Stamatellos D, 2006, A&A, 458, 817: `The minimum mass for star formation, and the origin of binary brown dwarfs'

Ward-Thompson D, Nutter D, Bontemps S, Whitworth A, Attwood R, 2006, MNRAS, 369, 1201: `SCUBA observations of the Horsehead nebula - what did the horse swallow?'

Goodwin SP, Whitworth AP, Ward-Tompson D, 2006, A&A, 452, 487: `Star formation in molecular cores. III. The effect of the turbulent power spectrum'

Hennebelle P, Whitworth AP, Goodwin SP, 2006, A&A, 451, 141: `A dynamical model for the dusty ring in the Coalsack'

Hubber DA, Goodwin SP, Whitworth AP, 2006, A&A, 450, 881: `Resolution requirements for simulating gravitational fragmentation using SPH'

Stamatellos D, Whitworth AP, 2005, A&A, 439, 153: `Monte Carlo radiative transfer in SPH density fields'

Hubber DA, Whitworth AP, 2005, A&A, 437, 113: `Binary star formation from ring fragmentation'

Boyd DFA, Whitworth AP, 2005, A&A, 430, 1059: `The minimum mass for opacity-limited fragmentation in turbulent cloud cores'

Whitworth AP, Zinnecker H, 2004, A&A, 427, 299: `The formation of free-floating brown dwarfs and planetary-mass objects by photo-erosion of prestellar cores'

Goodwin SP, Whitworth AP, Ward-Thompson D, 2004, A&A, 423, 169: `Simulating star formation in molecular cores. II. The effects of different levels of turbulence'

Stamatellos D, Whitworth AP, Andr'e P, Ward-Thompson D, 2004, A&A, 420, 1009: `Radiative transfer models of non-spherical prestellar cores'

Goodwin SP, Whitworth AP, Ward-Thompson D, 2004, A&A, 419, 543: `An explanation for the unusual IMF in Taurus'

Hennebelle P, Whitworth AP, Cha S-H, Goodwin SP, 2004, MNRAS, 348, 687: `Protostellar collapse induced by compression - II. Rotation and fragmentation'

Cartwright A, Whitworth AP, 2004, MNRAS, 348, 589: `The statistical analysis of star clusters'

Goodwin SP, Whitworth AP, Ward-Thompson D, 2004, A&A, 414, 633: `Simulating star formation in molecular cloud cores. I. The influence of low levels of turbulence on fragmentation and multiplicity'

Hosking JG, Whitworth AP, 2004, MNRAS, 347, 1001: `Fragmentation of magnetized cloud cores'

Hosking JG, Whitworth AP, 2004, MNRAS, 347, 994: `Modelling ambipolar diffusion with two-fluid smoothed particle hydrodynamics'

Goodwin SP, Whitworth AP, 2004, A&A, 413, 929: `The dynamical evolution of fractal star clusters: The survival of substructure'

Deharveng L, Lefloch B, Zavagno A, Caplan J, Whitworth AP, Nadeau D, Martín S, 2003, A&A, 408, L25: `Triggered massive-star formation at the border of the H II Region Sh 104'

Stamatellos D, Whitworth AP, 2003, A&A, 407, 941: `Monte Carlo radiative transfer in embedded prestellar cores'

Hennebelle P, Whitworth AP, Gladwin PP, Andre P, 2003, MNRAS, 340, 870: `Protostellar collapse induced by compression'

Cha S-H, Whitworth AP, 2003, MNRAS, 340, 91: `The formation and fragmentation of the ring appearing in the collapse of a rotating cloud'

Cha S-H, Whitworth AP, 2003, MNRAS, 340, 73: `Implementations and tests of Godunov-type particle hydrodynamics'

Whitworth AP, Bate MR, 2002, MNRAS, 333, 679: `Dust dynamics in dense molecular cores'

Goodwin SP, Ward-Thompson D, Whitworth AP, 2002, MNRAS, 330, 769: `Why do starless cores appear more flattened than protostellar cores?'

Kitsionas S, Whitworth AP, 2002, MNRAS, 330, 129: `Smoothed Particle Hydrodynamics with particle splitting, applied to self-gravitating collapse'

Whitworth AP, Francis N, 2002, MNRAS, 329, 641: `A threshold for sequentially self-propagating star formation'

Williams RJR, Ward-Thompson D, Whitworth AP, MNRAS, 327, 788: `Hydrodynamics of photoionized columns in the Eagle Nebula, M 16'

Whitworth AP, Ward-Thompson D, 2001, ApJ, 547, 317: `An Empirical Model for Protostellar Collapse'


I obtained my first degree from Oxford University in 1968, and my PhD from Manchester University in 1972. I was a Royal Society Postdoctoral Fellow in Leiden in the Netherlands from 1972 to 1974, before being appointed to a lectureship at Cardiff University in 1974. I was awarded a personal chair in 2000.

Postgraduate Students

I presently supervise five PhD students, and three post-doctoral researchers, all working in the area of star formation theory.