Professor Simon Goodwin
School of Mathematical and Physical Sciences
Professor of Theoretical Astrophysics
+44 114 222 3585
Full contact details
School of Mathematical and Physical Sciences
E48
Hicks Building
Hounsfield Road
Sheffield
S3 7RH
- Research interests
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My research centres on star formation. In particular, how stars move and interact in their first few million years (and the potential impact on planet formation), and how we can compare observations to theory/simulations.
At Sheffield I work with Claire Esau (Postdoc) and Dan Griffiths, Rebecca Arnold, and Suraiya Atker (PhD students).
- Publications
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Show: Featured publications All publications
Featured publications
Journal articles
- Mass segregation in star clusters is not energy equipartition. Monthly Notices of the Royal Astronomical Society: Letters, 459(1), L119-L123. View this article in WRRO
- Constraints on massive star formation: Cygnus OB2 was always an association. Monthly Notices of the Royal Astronomical Society, 438(1), 639-646. View this article in WRRO
- Early disc accretion as the origin of abundance anomalies in globular clusters. Monthly Notices of the Royal Astronomical Society, 436(3), 2398-2411. View this article in WRRO
All publications
Journal articles
- From cores to stars: searching for a universal rule for star formation. Monthly Notices of the Royal Astronomical Society, 531(3), 3373-3385.
- The RMS survey: A census of massive YSO multiplicity in the K band. Monthly Notices of the Royal Astronomical Society, 527(3), 8054-8066.
- On encounter rates in star clusters. The Astrophysical Journal, 947(1).
- Few observation binary orbit solver (
fobos ) from two (or more) astrometric observations. Monthly Notices of the Royal Astronomical Society, 513(2), 2635-2651. - The first interferometric survey of massive YSOs in the K-band. Astronomy & Astrophysics, 654, A109-A109.
- A high angular resolution survey of massive stars in Cygnus OB2 : JHK adaptive optics results from the Gemini Near-Infrared Imager. The Astronomical Journal, 160(3).
- The velocity structure of Cygnus OB2. Monthly Notices of the Royal Astronomical Society, 495(3), 3474-3481.
- Making top-heavy IMFs from canonical IMFs near the galactic centre. Monthly Notices of the Royal Astronomical Society. View this article in WRRO
- Properties of the dense core population in Orion B as seen by the Herschel Gould Belt survey. Astronomy & Astrophysics, 635. View this article in WRRO
- Finding binary star fractions in any distribution. Monthly Notices of the Royal Astronomical Society, 488(3), 3446-3451.
- A method to analyse velocity structure. Monthly Notices of the Royal Astronomical Society, 483(3), 3894-3909. View this article in WRRO
- A pilot survey of the binarity of Massive Young Stellar Objects with K-band adaptive optics. Monthly Notices of the Royal Astronomical Society, 484(1), 226-238. View this article in WRRO
- Circumstellar disk fragmentation and the origin of massive planetary companions, brown dwarfs, and very low-mass stars. Proceedings of the International Astronomical Union, 14(S345), 239-240.
- Is stellar multiplicity universal? Tight stellar binaries in the Orion nebula Cluster. Monthly Notices of the Royal Astronomical Society, 478(2), 1825-1836. View this article in WRRO
- The early dynamical evolution of star clusters near the Galactic Centre. Monthly Notices of the Royal Astronomical Society, 478(1), 183-196. View this article in WRRO
- Massive, wide binaries as tracers of massive star formation. Monthly Notices of the Royal Astronomical Society, 476(2), 2493-2500. View this article in WRRO
- Hierarchical formation of Westerlund 1: a collapsing cluster with no primordial mass segregation?. Monthly Notices of the Royal Astronomical Society, 472(2), 1760-1769. View this article in WRRO
- How do binary clusters form?. Monthly Notices of the Royal Astronomical Society, 471(2), 2498-2507. View this article in WRRO
- The Long-term Dynamical Evolution of Disk-fragmented Multiple Systems in the Solar Neighborhood. Astrophysical Journal, 831(2). View this article in WRRO
- Surviving gas expulsion with substructure. Monthly Notices of the Royal Astronomical Society, 460(3), 2997-3001. View this article in WRRO
- Mass segregation in star clusters is not energy equipartition. Monthly Notices of the Royal Astronomical Society: Letters, 459(1), L119-L123. View this article in WRRO
- Discs in misaligned binary systems. Monthly Notices of the Royal Astronomical Society, 460(4), 3505-3518. View this article in WRRO
- HIGHLIGHTS OF COMMISSION 37 SCIENCE RESULTS. Proceedings of the International Astronomical Union, 11(T29A), 502-521.
- Evolution of prolate molecular clouds at H ii boundaries – II. Formation of BRCs of asymmetrical morphology. Monthly Notices of the Royal Astronomical Society, 450(1), 1017-1031. View this article in WRRO
- The M-dwarfs in Multiples (MinMs) survey – I. Stellar multiplicity among low-mass stars within 15 pc★. Monthly Notices of the Royal Astronomical Society, 449(3), 2618-2637.
- Comparisons between different techniques for measuring mass segregation. Monthly Notices of the Royal Astronomical Society, 449(4), 3381-3392. View this article in WRRO
- The difficult early stages of embedded star clusters and the importance of the pre-gas expulsion virial ratio. Monthly Notices of the Royal Astronomical Society, 450(3), 2451-2458. View this article in WRRO
- How does a low-mass cut-off in the stellar IMF affect the evolution of young star clusters?. Monthly Notices of the Royal Astronomical Society, 445(3), 2256-2267. View this article in WRRO
- Evolution of prolate molecular clouds at H舁ii boundaries – I. Formation of fragment-core structures. Monthly Notices of the Royal Astronomical Society, 444(2), 1221-1235. View this article in WRRO
- Constraints on massive star formation: Cygnus OB2 was always an association. Monthly Notices of the Royal Astronomical Society, 438(1), 639-646. View this article in WRRO
- Dynamical evolution of star-forming regions. Monthly Notices of the Royal Astronomical Society, 438(1), 620-638. View this article in WRRO
- Early disc accretion as the origin of abundance anomalies in globular clusters. Monthly Notices of the Royal Astronomical Society, 436(3), 2398-2411. View this article in WRRO
- No compelling evidence of significant early star cluster disruption in the large magellanic cloud. Monthly Notices of the Royal Astronomical Society, 436(1), 136-149. View this article in WRRO
- Mapping the core mass function on to the stellar initial mass function: Multiplicity matters. Monthly Notices of the Royal Astronomical Society, 432(4), 3534-3543. View this article in WRRO
- Convergence of AMR and SPH simulations - I. Hydrodynamical resolution and convergence tests. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 432(1), 711-727. View this article in WRRO
- On the origin of mass segregation in NGC 3603. Astrophysical Journal, 764(1).
- A hybrid SPH/N-body method for star cluster simulations. Monthly Notices of the Royal Astronomical Society, 430(3), 1599-1616. View this article in WRRO
- Binary mass ratios: System mass not primary mass. Monthly Notices of the Royal Astronomical Society: Letters, 430(1). View this article in WRRO
- Infant mortality in the hierarchical merging scenario: dependence on gas expulsion time-scales. Monthly Notices of the Royal Astronomical Society, 428(2), 1303-1311. View this article in WRRO
- Testing the universality of star formation - II. Comparing separation distributions of nearby star-forming regions and the field. Monthly Notices of the Royal Astronomical Society, 427(3), 2636-2646. View this article in WRRO
- The VLT-FLAMES Tarantula Survey: IV. Candidates for isolated high-mass star formation in 30 Doradus. Astronomy and Astrophysics, 542. View this article in WRRO
- Disc frequencies for brown dwarfs in the Upper Scorpius OB association: implications for brown dwarf formation theories. Monthly Notices of the Royal Astronomical Society, 420(3), 2497-2517. View this article in WRRO
- View this article in WRRO The same, but different: Stochasticity in binary destruction. Monthly Notices of the Royal Astronomical Society.
- View this article in WRRO The Origin of Very Wide Binary Stars. NINTH PACIFIC RIM CONFERENCE ON STELLAR ASTROPHYSICS, 451, 9-+.
- The evolution of binary populations in cool, clumpy star clusters. Monthly Notices of the Royal Astronomical Society, 418(4), 2565-2575. View this article in WRRO
- Surviving infant mortality in the hierarchical merging scenario. Monthly Notices of the Royal Astronomical Society, 414(4), 3036-3043. View this article in WRRO
- View this article in WRRO A natural formation scenario for misaligned and short-period eccentric extrasolar planets. Monthly Notices of the Royal Astronomical Society.
- View this article in WRRO Collisions in young triple systems. Monthly Notices of the Royal Astronomical Society.
- Formation rates of star clusters in the hierarchical merging scenario. Monthly Notices of the Royal Astronomical Society, no-no. View this article in WRRO
- Convergence of SPH and AMR simulations. Proceedings of the International Astronomical Union, 6(S270), 429-432.
- The theory of young cluster disruption. Proceedings of the International Astronomical Union, 6(S270), 283-286.
- View this article in WRRO On the formation of trapezium-like systems. Monthly Notices of the Royal Astronomical Society.
- View this article in WRRO On the mass segregation of stars and brown dwarfs in Taurus. Monthly Notices of the Royal Astronomical Society.
- The dynamical evolution of very low mass binaries in open clusters. Monthly Notices of the Royal Astronomical Society, 411(2), 891-900. View this article in WRRO
- THE BINARY FRACTION OF THE YOUNG CLUSTER NGC 1818 IN THE LARGE MAGELLANIC CLOUD. ASTROPHYS J, 724(1), 649-656.
- The R136 star cluster hosts several stars whose individual masses greatly exceed the accepted 150 M-circle dot stellar mass limit. MON NOT R ASTRON SOC, 408(2), 731-751. View this article in WRRO
- TIDALLY INDUCED BROWN DWARF AND PLANET FORMATION IN CIRCUMSTELLAR DISKS. ASTROPHYS J, 717(1), 577-585. View this article in WRRO
- The formation of very wide binaries during the star cluster dissolution phase. MON NOT R ASTRON SOC, 404(4), 1835-1848. View this article in WRRO
- Binaries in star clusters and the origin of the field stellar population.. Philos Trans A Math Phys Eng Sci, 368(1913), 851-866. View this article in WRRO
- The mass ratio and formation mechanisms of Herbig Ae/Be star binary systems. MON NOT R ASTRON SOC, 401(2), 1199-1218. View this article in WRRO
- The early dynamical evolution of cool, clumpy star clusters. Monthly Notices of the Royal Astronomical Society, 407(2), 1098-1107. View this article in WRRO
- View this article in WRRO The Formation of Very Wide Binaries. BINARIES - KEY TO COMPREHENSION OF THE UNIVERSE, 435, 165-+.
- Do binaries in clusters form in the same way as in the field ?. MON NOT R ASTRON SOC, 397(3), 1577-1586. View this article in WRRO
- What does the IMF really tell us about star formation?. Proceedings of the International Astronomical Union, 5(S262), 368-369. View this article in WRRO
- DYNAMICAL MASS SEGREGATION ON A VERY SHORT TIMESCALE. ASTROPHYS J LETT, 700(2), L99-L103. View this article in WRRO
- The role of cluster evolution in disrupting planetary systems and discs: the Kozai mechanism. MON NOT R ASTRON SOC, 397(2), 1041-1045. View this article in WRRO
- What does a universal initial mass function imply about star formation?. MON NOT R ASTRON SOC, 397(1), L36-L40. View this article in WRRO
- Using the minimum spanning tree to trace mass segregation. MON NOT R ASTRON SOC, 395(3), 1449-1454.
- Simulating star formation in molecular cloud cores IV. The role of turbulence and thermodynamics. ASTRON ASTROPHYS, 495(1), 201-215.
- The origin of very wide binary systems. Proceedings of the International Astronomical Union, 5(S266), 438-441. View this article in WRRO
- Dynamical masses of young star clusters: Constraints on the stellar IMF and star-formation efficiency. ESO Astrophysics Symposia, 2009, 395-398.
- Exploring the consequences of pairing algorithms for binary stars. ASTRON ASTROPHYS, 493(3), 979-1016.
- Pairing mechanisms for binary stars. ASTRON NACHR, 329(9-10), 984-987.
- Open cluster stability and the effects of binary stars. ASTRON ASTROPHYS, 492(3), 685-693.
- What do dynamical cluster masses really tell us about dynamics?. ASTRON NACHR, 329(9-10), 972-975.
- The early expansion of cluster cores. MON NOT R ASTRON SOC, 389(1), 223-230. View this article in WRRO
- View this article in WRRO The shape of the initial cluster mass function: What it tells us about the local star formation efficiency. ASTROPHYS J, 678(1), 347-352.
- Star cluster 'infant mortality' in the Small Magellanic Cloud (Redivivus). MON NOT R ASTRON SOC, 383(3), 1000-1006. View this article in WRRO
- The relationship between the prestellar core mass function and the stellar initial mass function. ASTRON ASTROPHYS, 477(3), 823-827. View this article in WRRO
- Intermediate to low-mass stellar content of Westerlund 1. ASTRON ASTROPHYS, 478(1), 137-149.
- Unveiling the X-ray point source population of the Young Massive Cluster Westerlund 1. ASTRON ASTROPHYS, 477(1), 147-163. View this article in WRRO
- Do O-stars form in isolation?. MON NOT R ASTRON SOC, 380(3), 1271-1275. View this article in WRRO
- Radiative transfer and the energy equation in SPH simulations of star formation. Astronomy & Astrophysics, 475(1), 37-49. View this article in WRRO
- Brown dwarf formation by binary disruption. ASTRON ASTROPHYS, 466(3), 943-948. View this article in WRRO
- On mini-halo encounters with stars. MON NOT R ASTRON SOC, 375(3), 1111-1120. View this article in WRRO
- Adaptive smoothing lengths in SPH. ASTRON ASTROPHYS, 464(2), 447-450.
- Dynamical Masses of Young Star Clusters: Constraints on the Stellar IMF and Star-Formation Efficiency. Proceedings of the International Astronomical Union, 3(S246), 32-35. View this article in WRRO
- Gas expulsion and the destruction of massive young clusters. MON NOT R ASTRON SOC, 373(2), 752-758. View this article in WRRO
- Evidence for the strong effect of gas removal on the internal dynamics of young stellar clusters. MON NOT R ASTRON SOC, 369(1), L9-L13.
- Star formation in molecular cores. Astronomy & Astrophysics, 452(2), 487-492.
- A dynamical model for the dusty ring in the Coalsack. ASTRON ASTROPHYS, 451(1), 141-146.
- Resolution requirements for simulating gravitational fragmentation using SPH. Astronomy & Astrophysics, 450(3), 881-886. View this article in WRRO
- The distribution of ejected brown dwarfs in clusters. Astronomische Nachrichten, 326(10), 1040-1043. View this article in WRRO
- The formation of brown dwarfs. Astronomische Nachrichten, 326(10), 899-904. View this article in WRRO
- How to identify the youngest protostars. Astronomy & Astrophysics, 439(1), 159-169.
- Limits on the primordial stellar multiplicity. Astronomy & Astrophysics, 439(2), 565-569.
- Supernova II enrichment and the star cluster mass function. Monthly Notices of the Royal Astronomical Society, 359(2), 707-710.
- On the massive stellar population of the super star cluster Westerlund 1. ASTRON ASTROPHYS, 434(3), 949-969. View this article in WRRO
- Simulating star formation in molecular cores. Astronomy & Astrophysics, 423(1), 169-182.
- An explanation for the unusual IMF in Taurus. Astronomy & Astrophysics, 419(2), 543-547.
- An idealized pulsar magnetosphere: the relativistic force-free approximation. Monthly Notices of the Royal Astronomical Society, 349(1), 213-224.
- Protostellar collapse induced by compression - II. Rotation and fragmentation. Monthly Notices of the Royal Astronomical Society, 348(2), 687-701.
- Simulating star formation in molecular cloud cores. Astronomy & Astrophysics, 414(2), 633-650.
- The dynamical evolution of fractal star clusters: The survival of substructure. Astronomy & Astrophysics, 413(3), 929-937.
- Physical parameters of the high-mass X-ray binary 4U1700-37. Astronomy & Astrophysics, 392(3), 909-920.
- Why do starless cores appear more flattened than protostellar cores?. Monthly Notices of the Royal Astronomical Society, 330(4), 769-771.
- On the radio emitting high mass X-ray binary LS 5039. Astronomy & Astrophysics, 376(2), 476-483.
- A robust method for measuring the Hubble parameter. Monthly Notices of the Royal Astronomical Society, 324(3), 717-724.
- The relative size of the milky way. Observatory, 118(1145), 201-208.
- Constraints on the initial conditions of globular clusters. Monthly Notices of the Royal Astronomical Society, 294(1), 47-60.
- Residual gas expulsion from young globular clusters. Monthly Notices of the Royal Astronomical Society, 284(4), 785-802.
- The ellipticities of Galactic and Large Magellanic Cloud globular clusters. Monthly Notices of the Royal Astronomical Society, 286(3), L39-L42.
- The initial conditions of young globular clusters in the Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 286(3), 669-680.
- A new Determination of the Hubble Parameter using Galaxy Linear Diameters. The Astronomical Journal, 114, 2212-2212.
- Deviations from the universal Initial Mass Function in binary star clusters. Monthly Notices of the Royal Astronomical Society, stae2648.
- Modelling uncertainties in wide binary constraints on primordial black holes. Monthly Notices of the Royal Astronomical Society.
- THE DYNAMICAL EVOLUTION OF LOW-MASS HYDROGEN-BURNING STARS, BROWN DWARFS, AND PLANETARY-MASS OBJECTS FORMED THROUGH DISK FRAGMENTATION. The Astrophysical Journal, 805(2), 116-116.
- Testing the universality of star formation - I. Multiplicity in nearby star-forming regions. Monthly Notices of the Royal Astronomical Society. View this article in WRRO
- Simulation studies of polymer translocation through a channel. Physical Review E, 67(4).
- External photoevaporation of protoplanetary discs: does location matter?.
Chapters
- Star Formation, Planets, Stars and Stellar Systems (pp. 243-277). Springer Netherlands
- View this article in WRRO The Fragmentation of Cores and the Initial Binary Population
Conference proceedings papers
- Westerlund 1: monolithic formation of a starburst cluster. Proceedings of the International Astronomical Union, Vol. 12(S316) (pp 159-160)
- Initial Dynamical Evolution of Star Clusters with Tidal Field. Proceedings of the International Astronomical Union, Vol. 12(S316) (pp 261-262)
- Working with Ant Whitworth (pp 13-14)
- The Labyrinth of Star Formation
- Mapping the Present-Day Prestellar Core Mass Function into the Stellar IMF (pp 309-315)
- DIVISION VII: COMMISSION 37: STAR CLUSTERS AND ASSOCIATIONS. Proceedings of the International Astronomical Union, Vol. 10(T28B) (pp 128-131)
- Hybrid SPH and N-body Simulations of Star Clusters. ADVANCES IN COMPUTATIONAL ASTROPHYSICS: METHODS, TOOLS AND OUTCOMES, Vol. 453 (pp 215-+)
- Life and death of very massive stars. Proceedings of Science
- Star formation simulations: caveats. HIGHLIGHTS OF ASTRONOMY, VOL 15, Vol. 15 (pp 793-793)
- The formation of brown dwarfs. Proceedings of the International Astronomical Union, Vol. 5(S266) (pp 264-271)
- Gas removal and the initial mass function of star clusters. ASTROPHYSICS AND SPACE SCIENCE, Vol. 324(2-4) (pp 327-332)
- The effect of the dynamical state of clusters on gas expulsion and infant mortality. ASTROPHYSICS AND SPACE SCIENCE, Vol. 324(2-4) (pp 259-263) View this article in WRRO
- Star cluster evolution in the Magellanic Clouds revisited. MAGELLANIC SYSTEM: STARS, GAS, AND GALAXIES, Vol. 4(256) (pp 311-316) View this article in WRRO
- Observational characteristics of dense cores with deeply embedded young protostars. Astronomische Nachrichten, Vol. 326(10) (pp 882-885)
Preprints
- Deviations from the universal Initial Mass Function in binary star clusters.
- The velocity structure of Cygnus OB2, arXiv.
- A pilot survey of the binarity of Massive Young Stellar Objects with $K$ band adaptive optics, arXiv.
- How do binary clusters form?, arXiv.
- Discs in misaligned binary systems.
- IAU Commission 37 "Star Clusters and Associations" Legacy report, arXiv.
- Comparisons between different techniques for measuring mass segregation, arXiv.
- How does a low-mass cut-off in the stellar IMF affect the evolution of young star clusters?, arXiv.
- Constraints on Massive Star Formation: Cygnus OB2 was always an Association, arXiv.
- No compelling evidence of significant early star cluster disruption in the Large Magellanic Cloud, arXiv.
- Convergence of AMR and SPH simulations - I. Hydrodynamical resolution and convergence tests.
- Binary mass ratios: system mass not primary mass, arXiv.
- The same, but different: Stochasticity in binary destruction, arXiv.
- The VLT-FLAMES Tarantula Survey IV: Candidates for isolated high-mass star formation in 30 Doradus, arXiv.
- The origin of very wide binary stars, arXiv.
- The evolution of binary populations in cool, clumpy star clusters, arXiv.
- The dynamical evolution of very-low mass binaries in open clusters, arXiv.
- The R136 star cluster hosts several stars whose individual masses greatly exceed the accepted 150 Msun stellar mass limit, arXiv.
- Tidally induced brown dwarf and planet formation in circumstellar discs, arXiv.
- The early dynamical evolution of cool, clumpy star clusters, arXiv.
- The formation of very wide binaries during the star cluster dissolution phase, arXiv.
- Binaries in star clusters and the origin of the field stellar population, arXiv.
- The origin of very wide binary systems, arXiv.
- What does the IMF really tell us about star formation?, arXiv.
- The formation of very wide binaries, arXiv.
- Dynamical mass segregation on a very short timescale, arXiv.
- The role of cluster evolution in disrupting planetary systems and disks: the Kozai mechanism, arXiv.
- What does a universal IMF imply about star formation?, arXiv.
- Using the minimum spanning tree to trace mass segregation, arXiv.
- Pairing mechanisms for binary stars, arXiv.
- Exploring the consequences of pairing algorithms for binary stars, arXiv.
- What do dynamical cluster masses really tell us about dynamics?, arXiv.
- Star cluster evolution in the Magellanic Clouds revisited, arXiv.
- The Early Expansion of Cluster Cores, arXiv.
- Open cluster stability and the effects of binary stars, arXiv.
- The effect of the dynamical state of clusters on gas expulsion and infant mortality, arXiv.
- The shape of the initial cluster mass function: what it tells us about the local star formation efficiency, arXiv.
- The relationship between the prestellar core mass function and the stellar initial mass function, arXiv.
- Star cluster "infant mortality" in the Small Magellanic Cloud (Redivivus), arXiv.
- Do O-stars form in isolation?, arXiv.
- Brown dwarf formation by binary disruption, arXiv.
- Gas expulsion and the destruction of massive young clusters, arXiv.
- Dynamical Masses of Young Star Clusters: Constraints on the Stellar IMF and Star-Formation Efficiency, arXiv.
- The formation of brown dwarfs, arXiv.
- On the massive stellar population of the Super Star Cluster Westerlund 1, arXiv.
- Research group
- Teaching interests
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I teach several astronomy courses: 'Our Evolving Universe' (PHY111), 'Extrasolar Planets and Astrobiology' (PHY229), and 'Star formation and Evolution (PHY404 with Paul Crowther). I also supervise 3rd and 4th year projects, run first year induction, am a personal tutor and PhD mentor.