![Felix Priestley](https://profiles-cardiff.imgix.net/attachments/3797?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Dr Felix Priestley
Cydymaith Ymchwil
Seryddiaeth
Canolfan Caerdydd ar gyfer Ymchwil a Thechnoleg Astroffiseg
- PriestleyF@caerdydd.ac.uk
- Adeiladau'r Frenhines - Adeilad y Gogledd, Ystafell N / 3.25, 5 The Parade, Heol Casnewydd, Caerdydd, CF24 3AA
Trosolwyg
Rwy'n bostdoc yn gweithio ar ffurfio sêr mewn ffilamentau, yn bennaf trwy redeg efelychiadau MHD i ymchwilio i sut mae cryfder a diwydrwydd y maes magnetig yn effeithio ar ffurfiant ffilament a darnio. Mae gen i ddiddordeb hefyd mewn defnyddio astrocemeg fel olrhain y ddeinameg mewn rhanbarthau sy'n ffurfio sêr, a ffurfio a dinistrio llwch mewn gweddillion uwchnofa.
Cyhoeddiad
2024
- Milisavljevic, D. et al. 2024. A JWST survey of the supernova remnant Cassiopeia A. The Astrophysical Journal Letters 965(2), article number: L27. (10.3847/2041-8213/ad324b)
- Kirchschlager, F., Sartorio, N. S., De Looze, I., Barlow, M. J., Schmidt, F. D. and Priestley, F. D. 2024. From total destruction to complete survival: dust processing at different evolutionary stages in the supernova remnant Cassiopeia A. Monthly Notices of the Royal Astronomical Society 528(3), pp. 5364–5376. (10.1093/mnras/stae365)
- Rigby, A. J. et al. 2024. The dynamic centres of infrared-dark clouds and the formation of cores. Monthly Notices of the Royal Astronomical Society 528(2), pp. 1172–1197. (10.1093/mnras/stae030)
- Prole, L. R., Clark, P. C., Priestley, F. D., Glover, S. C. O. and Regan, J. A. 2024. Population III star formation: multiple gas phases prevent the use of an equation of state at high densities. The Open Journal of Astrophysics 7 (10.21105/astro.2310.10730)
2023
- Priestley, F. D., Clark, P. C., Glover, S. C. O., Ragan, S. E., Feher, O., Prole, L. R. and Klessen, R. S. 2023. NEATH – II. N2H+ as a tracer of imminent star formation in quiescent high-density gas. Monthly Notices of the Royal Astronomical Society 526(4), pp. 4952–4960. (10.1093/mnras/stad3089)
- Priestley, F. D., Clark, P. C., Glover, S. C. O., Ragan, S. E., Feher, O., Prole, L. R. and Klessen, R. S. 2023. Non-equilibrium abundances treated holistically (NEATH): the molecular composition of star-forming clouds. Monthly Notices of the Royal Astronomical Society 524(4), pp. 5971–5983. (10.1093/mnras/stad2278)
- Priestley, F. D., Arzoumanian, D. and Whitworth, A. P. 2023. Line emission from filaments in molecular clouds. Monthly Notices of the Royal Astronomical Society 522(3), pp. 3890-3897. (10.1093/mnras/stad1229)
- Karoly, J. et al. 2023. The JCMT BISTRO Survey: Studying the Complex Magnetic Field of L43. Astrophysical Journal 952(1), article number: 29. (10.3847/1538-4357/acd6f2)
- Prole, L. R., Schauer, A. T. P., Clark, P. C., Glover, S. C. O., Priestley, F. D. and Klessen, R. S. 2023. From dark matter halos to pre-stellar cores: High resolution follow-up of cosmological Lyman-Werner simulations. Monthly Notices of the Royal Astronomical Society 520(2), pp. 2081-2093. (10.1093/mnras/stad188)
- Priestley, F. D., Clark, P. C. and Whitworth, A. P. 2023. Do simulated molecular clouds look like real ones?. Monthly Notices of the Royal Astronomical Society 519(4), pp. 6392–6400. (10.1093/mnras/stad150)
- Ward-Thompson, D. et al. 2023. First BISTRO observations of the dark cloud Taurus L1495A-B10: the role of the magnetic field in the earliest stages of low-mass star formation. Astrophysical Journal 946(2) (10.3847/1538-4357/acbea4)
2022
- Ching, T. et al. 2022. The JCMT BISTRO-2 survey: magnetic fields of the massive DR21 filament. Astrophysical Journal 941, article number: 122. (10.3847/1538-4357/ac9dfb)
- Hwang, J. et al. 2022. The JCMT BISTRO Survey: a spiral magnetic field in a hub-filament structure, Monoceros R2. Astrophysical Journal 941(1), article number: 51. (10.3847/1538-4357/ac99e0)
- Chastenet, J. et al. 2022. SOFIA/HAWC+ observations of the Crab Nebula: dust properties from polarized emission. Monthly Notices of the Royal Astronomical Society 516(3), pp. 4229-4244. (10.1093/mnras/stac2413)
- Priestley, F., Whitworth, A. and Fogerty, E. 2022. Differences in chemical evolution between isolated and embedded prestellar cores. Monthly Notices of the Royal Astronomical Society 518(4), pp. 4839-4844. (10.1093/mnras/stac3444)
- Whitworth, A., Priestley, F. and Geen, S. T. 2022. Ionizing feedback from an O star formed in a shock-compressed layer. Monthly Notices of the Royal Astronomical Society 517(4), pp. 4940-4949. (10.1093/mnras/stac2955)
- Priestley, F. D., Chawner, H., Barlow, M. J., De Looze, I., Gomez, H. L. and Matsuura, M. 2022. Properties of shocked dust grains in supernova remnants. Monthly Notices of the Royal Astronomical Society 516(2), pp. 2314-2325. (10.1093/mnras/stac2408)
- Priestley, F. D., Yin, C. and Wurster, J. 2022. The initial magnetic criticality of pre-stellar cores. Monthly Notices of the Royal Astronomical Society 515(4), pp. 5689-5697. (10.1093/mnras/stac2107)
- Matsuura, M. et al. 2022. Spitzer and Herschel studies of dust in supernova remnants in the Small Magellanic Cloud. Monthly Notices of the Royal Astronomical Society 513(1), pp. 1154-1174. (10.1093/mnras/stac583)
- Priestley, F. D. and Whitworth, A. P. 2022. The widths of magnetized filaments in molecular clouds. Monthly Notices of the Royal Astronomical Society 512(1), pp. 1407–1414. (10.1093/mnras/stac627)
- Kwon, W. et al. 2022. B-fields in Star-forming Region Observations (BISTRO): Magnetic fields in the filamentary structures of Serpens Main. Astrophysical Journal 926(2), article number: 163. (10.3847/1538-4357/ac4bbe)
- Priestley, F. D. and Whitworth, A. P. 2022. The origin of a universal filament width in molecular clouds. Monthly Notices of the Royal Astronomical Society 509(1), pp. 1494–1503. (10.1093/mnras/stab2816)
- Priestley, F. D., De Looze, I. and Barlow, M. J. 2022. The impact of metallicity-dependent dust destruction on the dust-to-metals ratio in galaxies. Monthly Notices of the Royal Astronomical Society - Letters 509(1), pp. L6–L10. (10.1093/mnrasl/slab114)
- Priestley, F. D., Arias, M., Barlow, M. J. and De Looze, I. 2022. Dust destruction and survival in the Cassiopeia A reverse shock. Monthly Notices of the Royal Astronomical Society 509(3), pp. 3163–3171. (10.1093/mnras/stab3195)
2021
- Whitworth, A. P., Priestley, F. D. and Arzoumanian, D. 2021. A systematic bias in fitting the surface-density profiles of interstellar filaments. Monthly Notices of the Royal Astronomical Society 508(2), pp. 2736–2742. (10.1093/mnras/stab2782)
- Priestley, F. D. and Whitworth, A. P. 2021. Molecular line signatures of cloud-cloud collisions. Monthly Notices of the Royal Astronomical Society 506(1), pp. 775–780. (10.1093/mnras/stab1777)
- Lyo, A. et al. 2021. The JCMT BISTRO survey: an 850/450 μm polarization study of NGC 2071IR in Orion B. Astrophysical Journal 918(2), article number: 85. (10.3847/1538-4357/ac0ce9)
- Whitworth, A. P. and Priestley, F. D. 2021. Ionizing feedback from an O star formed in a filament. Monthly Notices of the Royal Astronomical Society 504(3), pp. 3156-3165. (10.1093/mnras/stab1125)
- Yin, C., Priestley, F. D. and Wurster, J. 2021. Investigating the role of magnetic fields in star formation using molecular line profiles. Monthly Notices of the Royal Astronomical Society 504(2), pp. 2381-2389. (10.1093/mnras/stab1039)
- Priestley, F. D., Wurster, J. and Viti, S. 2021. Erratum: Ambipolar diffusion and the molecular abundances in pre-stellar cores. Monthly Notices of the Royal Astronomical Society 503(2), pp. 2899–2901. (10.1093/mnras/stab702)
- Priestley, F. D., De Looze, I. and Barlow, M. J. 2021. The efficiency of grain growth in the diffuse interstellar medium. Monthly Notices of the Royal Astronomical Society 502(2), pp. 2438-2445. (10.1093/mnras/stab122)
- Priestley, F. D., Chawner, H., Matsuura, M., De Looze, I., Barlow, M. J. and Gomez, H. L. 2021. Revisiting the dust destruction efficiency of supernovae. Monthly Notices of the Royal Astronomical Society 500(2), pp. 2543-2553. (10.1093/mnras/staa3445)
2020
- Chawner, H. et al. 2020. A galactic dust devil: far-infrared observations of the tornado supernova remnant candidate. Monthly Notices of the Royal Astronomical Society 499(4) (10.1093/mnras/staa2925)
- Priestley, F. D. and Whitworth, A. P. 2020. Synthetic line and continuum observations of simulated turbulent clouds: the apparent widths of filaments. Monthly Notices of the Royal Astronomical Society 499(3), pp. 3728-3737. (10.1093/mnras/staa3111)
- Priestley, F. D., Bevan, A., Barlow, M. J. and De Looze, I. 2020. Constraining early-time dust formation in core-collapse supernovae. Monthly Notices of the Royal Astronomical Society 497(2), pp. 2227-2238. (10.1093/mnras/staa2121)
- Whitworth, A. P. and Priestley, F. D. 2020. The apparent anticorrelation between the mass opacity of interstellar dust and the surface density of interstellar gas. Monthly Notices of the Royal Astronomical Society - Letters 494(1), pp. L48-L52. (10.1093/mnrasl/slaa034)
- Priestley, F. D., Barlow, M. J., De Looze, I. and Chawner, H. 2020. Dust masses and grain size distributions of a sample of Galactic pulsar wind nebulae. Monthly Notices of the Royal Astronomical Society 491(4), pp. 6020-6031. (10.1093/mnras/stz3434)
2019
- Kirchschlager, F., Schmidt, F. D., Barlow, M. J., Fogerty, E. L., Bevan, A. and Priestley, F. D. 2019. Dust survival rates in clumps passing through the Cas A reverse shock - I. Results for a range of clump densities. Monthly Notices of the Royal Astronomical Society 489(4), pp. 4465-4496. (10.1093/mnras/stz2399)
- Priestley, F. D., Barlow, M. J. and Viti, S. 2019. Erratum: Modelling the ArH+ emission from the Crab Nebula. Monthly Notices of the Royal Astronomical Society 488(4), pp. 5437. (10.1093/mnras/stz2133)
- De Looze, I. et al. 2019. The dust content of the Crab Nebula. Monthly Notices of the Royal Astronomical Society 488(1), pp. 164-182. (10.1093/mnras/stz1533)
- Priestley, F. D., Wurster, J. and Viti, S. 2019. Ambipolar diffusion and the molecular abundances in pre-stellar cores. Monthly Notices of the Royal Astronomical Society 488(2), pp. 2357-2364. (10.1093/mnras/stz1869)
- Priestley, F. D., Barlow, M. J. and De Looze, I. 2019. The mass, location, and heating of the dust in the Cassiopeia A supernova remnant. Monthly Notices of the Royal Astronomical Society 485(1), pp. 440-451. (10.1093/mnras/stz414)
2018
- Priestley, F. D. and Barlow, M. J. 2018. OH+ emission from cometary knots in planetary nebulae. Monthly Notices of the Royal Astronomical Society 478(2), pp. 1502-1511. (10.1093/mnras/sty1099)
- Priestley, F. D., Viti, S. and Williams, D. A. 2018. An efficient method for determining the chemical evolution of gravitationally collapsing prestellar cores. Astronomical Journal 156(2), article number: 51. (10.3847/1538-3881/aac957)
2017
- Priestley, F. D., Barlow, M. J. and Viti, S. 2017. Modelling the ArH+ emission from the Crab nebula. Monthly Notices of the Royal Astronomical Society 472(4), pp. 4444-4455. (10.1093/mnras/stx2327)
- Holdship, J., Viti, S., Jiménez-Serra, I., Makrymallis, A. and Priestley, F. 2017. UCLCHEM: A Gas-grain Chemical Code for Clouds, Cores, and C-Shocks. Astronomical Journal 154(1), pp. 38. (10.3847/1538-3881/aa773f)
Erthyglau
- Milisavljevic, D. et al. 2024. A JWST survey of the supernova remnant Cassiopeia A. The Astrophysical Journal Letters 965(2), article number: L27. (10.3847/2041-8213/ad324b)
- Kirchschlager, F., Sartorio, N. S., De Looze, I., Barlow, M. J., Schmidt, F. D. and Priestley, F. D. 2024. From total destruction to complete survival: dust processing at different evolutionary stages in the supernova remnant Cassiopeia A. Monthly Notices of the Royal Astronomical Society 528(3), pp. 5364–5376. (10.1093/mnras/stae365)
- Rigby, A. J. et al. 2024. The dynamic centres of infrared-dark clouds and the formation of cores. Monthly Notices of the Royal Astronomical Society 528(2), pp. 1172–1197. (10.1093/mnras/stae030)
- Prole, L. R., Clark, P. C., Priestley, F. D., Glover, S. C. O. and Regan, J. A. 2024. Population III star formation: multiple gas phases prevent the use of an equation of state at high densities. The Open Journal of Astrophysics 7 (10.21105/astro.2310.10730)
- Priestley, F. D., Clark, P. C., Glover, S. C. O., Ragan, S. E., Feher, O., Prole, L. R. and Klessen, R. S. 2023. NEATH – II. N2H+ as a tracer of imminent star formation in quiescent high-density gas. Monthly Notices of the Royal Astronomical Society 526(4), pp. 4952–4960. (10.1093/mnras/stad3089)
- Priestley, F. D., Clark, P. C., Glover, S. C. O., Ragan, S. E., Feher, O., Prole, L. R. and Klessen, R. S. 2023. Non-equilibrium abundances treated holistically (NEATH): the molecular composition of star-forming clouds. Monthly Notices of the Royal Astronomical Society 524(4), pp. 5971–5983. (10.1093/mnras/stad2278)
- Priestley, F. D., Arzoumanian, D. and Whitworth, A. P. 2023. Line emission from filaments in molecular clouds. Monthly Notices of the Royal Astronomical Society 522(3), pp. 3890-3897. (10.1093/mnras/stad1229)
- Karoly, J. et al. 2023. The JCMT BISTRO Survey: Studying the Complex Magnetic Field of L43. Astrophysical Journal 952(1), article number: 29. (10.3847/1538-4357/acd6f2)
- Prole, L. R., Schauer, A. T. P., Clark, P. C., Glover, S. C. O., Priestley, F. D. and Klessen, R. S. 2023. From dark matter halos to pre-stellar cores: High resolution follow-up of cosmological Lyman-Werner simulations. Monthly Notices of the Royal Astronomical Society 520(2), pp. 2081-2093. (10.1093/mnras/stad188)
- Priestley, F. D., Clark, P. C. and Whitworth, A. P. 2023. Do simulated molecular clouds look like real ones?. Monthly Notices of the Royal Astronomical Society 519(4), pp. 6392–6400. (10.1093/mnras/stad150)
- Ward-Thompson, D. et al. 2023. First BISTRO observations of the dark cloud Taurus L1495A-B10: the role of the magnetic field in the earliest stages of low-mass star formation. Astrophysical Journal 946(2) (10.3847/1538-4357/acbea4)
- Ching, T. et al. 2022. The JCMT BISTRO-2 survey: magnetic fields of the massive DR21 filament. Astrophysical Journal 941, article number: 122. (10.3847/1538-4357/ac9dfb)
- Hwang, J. et al. 2022. The JCMT BISTRO Survey: a spiral magnetic field in a hub-filament structure, Monoceros R2. Astrophysical Journal 941(1), article number: 51. (10.3847/1538-4357/ac99e0)
- Chastenet, J. et al. 2022. SOFIA/HAWC+ observations of the Crab Nebula: dust properties from polarized emission. Monthly Notices of the Royal Astronomical Society 516(3), pp. 4229-4244. (10.1093/mnras/stac2413)
- Priestley, F., Whitworth, A. and Fogerty, E. 2022. Differences in chemical evolution between isolated and embedded prestellar cores. Monthly Notices of the Royal Astronomical Society 518(4), pp. 4839-4844. (10.1093/mnras/stac3444)
- Whitworth, A., Priestley, F. and Geen, S. T. 2022. Ionizing feedback from an O star formed in a shock-compressed layer. Monthly Notices of the Royal Astronomical Society 517(4), pp. 4940-4949. (10.1093/mnras/stac2955)
- Priestley, F. D., Chawner, H., Barlow, M. J., De Looze, I., Gomez, H. L. and Matsuura, M. 2022. Properties of shocked dust grains in supernova remnants. Monthly Notices of the Royal Astronomical Society 516(2), pp. 2314-2325. (10.1093/mnras/stac2408)
- Priestley, F. D., Yin, C. and Wurster, J. 2022. The initial magnetic criticality of pre-stellar cores. Monthly Notices of the Royal Astronomical Society 515(4), pp. 5689-5697. (10.1093/mnras/stac2107)
- Matsuura, M. et al. 2022. Spitzer and Herschel studies of dust in supernova remnants in the Small Magellanic Cloud. Monthly Notices of the Royal Astronomical Society 513(1), pp. 1154-1174. (10.1093/mnras/stac583)
- Priestley, F. D. and Whitworth, A. P. 2022. The widths of magnetized filaments in molecular clouds. Monthly Notices of the Royal Astronomical Society 512(1), pp. 1407–1414. (10.1093/mnras/stac627)
- Kwon, W. et al. 2022. B-fields in Star-forming Region Observations (BISTRO): Magnetic fields in the filamentary structures of Serpens Main. Astrophysical Journal 926(2), article number: 163. (10.3847/1538-4357/ac4bbe)
- Priestley, F. D. and Whitworth, A. P. 2022. The origin of a universal filament width in molecular clouds. Monthly Notices of the Royal Astronomical Society 509(1), pp. 1494–1503. (10.1093/mnras/stab2816)
- Priestley, F. D., De Looze, I. and Barlow, M. J. 2022. The impact of metallicity-dependent dust destruction on the dust-to-metals ratio in galaxies. Monthly Notices of the Royal Astronomical Society - Letters 509(1), pp. L6–L10. (10.1093/mnrasl/slab114)
- Priestley, F. D., Arias, M., Barlow, M. J. and De Looze, I. 2022. Dust destruction and survival in the Cassiopeia A reverse shock. Monthly Notices of the Royal Astronomical Society 509(3), pp. 3163–3171. (10.1093/mnras/stab3195)
- Whitworth, A. P., Priestley, F. D. and Arzoumanian, D. 2021. A systematic bias in fitting the surface-density profiles of interstellar filaments. Monthly Notices of the Royal Astronomical Society 508(2), pp. 2736–2742. (10.1093/mnras/stab2782)
- Priestley, F. D. and Whitworth, A. P. 2021. Molecular line signatures of cloud-cloud collisions. Monthly Notices of the Royal Astronomical Society 506(1), pp. 775–780. (10.1093/mnras/stab1777)
- Lyo, A. et al. 2021. The JCMT BISTRO survey: an 850/450 μm polarization study of NGC 2071IR in Orion B. Astrophysical Journal 918(2), article number: 85. (10.3847/1538-4357/ac0ce9)
- Whitworth, A. P. and Priestley, F. D. 2021. Ionizing feedback from an O star formed in a filament. Monthly Notices of the Royal Astronomical Society 504(3), pp. 3156-3165. (10.1093/mnras/stab1125)
- Yin, C., Priestley, F. D. and Wurster, J. 2021. Investigating the role of magnetic fields in star formation using molecular line profiles. Monthly Notices of the Royal Astronomical Society 504(2), pp. 2381-2389. (10.1093/mnras/stab1039)
- Priestley, F. D., Wurster, J. and Viti, S. 2021. Erratum: Ambipolar diffusion and the molecular abundances in pre-stellar cores. Monthly Notices of the Royal Astronomical Society 503(2), pp. 2899–2901. (10.1093/mnras/stab702)
- Priestley, F. D., De Looze, I. and Barlow, M. J. 2021. The efficiency of grain growth in the diffuse interstellar medium. Monthly Notices of the Royal Astronomical Society 502(2), pp. 2438-2445. (10.1093/mnras/stab122)
- Priestley, F. D., Chawner, H., Matsuura, M., De Looze, I., Barlow, M. J. and Gomez, H. L. 2021. Revisiting the dust destruction efficiency of supernovae. Monthly Notices of the Royal Astronomical Society 500(2), pp. 2543-2553. (10.1093/mnras/staa3445)
- Chawner, H. et al. 2020. A galactic dust devil: far-infrared observations of the tornado supernova remnant candidate. Monthly Notices of the Royal Astronomical Society 499(4) (10.1093/mnras/staa2925)
- Priestley, F. D. and Whitworth, A. P. 2020. Synthetic line and continuum observations of simulated turbulent clouds: the apparent widths of filaments. Monthly Notices of the Royal Astronomical Society 499(3), pp. 3728-3737. (10.1093/mnras/staa3111)
- Priestley, F. D., Bevan, A., Barlow, M. J. and De Looze, I. 2020. Constraining early-time dust formation in core-collapse supernovae. Monthly Notices of the Royal Astronomical Society 497(2), pp. 2227-2238. (10.1093/mnras/staa2121)
- Whitworth, A. P. and Priestley, F. D. 2020. The apparent anticorrelation between the mass opacity of interstellar dust and the surface density of interstellar gas. Monthly Notices of the Royal Astronomical Society - Letters 494(1), pp. L48-L52. (10.1093/mnrasl/slaa034)
- Priestley, F. D., Barlow, M. J., De Looze, I. and Chawner, H. 2020. Dust masses and grain size distributions of a sample of Galactic pulsar wind nebulae. Monthly Notices of the Royal Astronomical Society 491(4), pp. 6020-6031. (10.1093/mnras/stz3434)
- Kirchschlager, F., Schmidt, F. D., Barlow, M. J., Fogerty, E. L., Bevan, A. and Priestley, F. D. 2019. Dust survival rates in clumps passing through the Cas A reverse shock - I. Results for a range of clump densities. Monthly Notices of the Royal Astronomical Society 489(4), pp. 4465-4496. (10.1093/mnras/stz2399)
- Priestley, F. D., Barlow, M. J. and Viti, S. 2019. Erratum: Modelling the ArH+ emission from the Crab Nebula. Monthly Notices of the Royal Astronomical Society 488(4), pp. 5437. (10.1093/mnras/stz2133)
- De Looze, I. et al. 2019. The dust content of the Crab Nebula. Monthly Notices of the Royal Astronomical Society 488(1), pp. 164-182. (10.1093/mnras/stz1533)
- Priestley, F. D., Wurster, J. and Viti, S. 2019. Ambipolar diffusion and the molecular abundances in pre-stellar cores. Monthly Notices of the Royal Astronomical Society 488(2), pp. 2357-2364. (10.1093/mnras/stz1869)
- Priestley, F. D., Barlow, M. J. and De Looze, I. 2019. The mass, location, and heating of the dust in the Cassiopeia A supernova remnant. Monthly Notices of the Royal Astronomical Society 485(1), pp. 440-451. (10.1093/mnras/stz414)
- Priestley, F. D. and Barlow, M. J. 2018. OH+ emission from cometary knots in planetary nebulae. Monthly Notices of the Royal Astronomical Society 478(2), pp. 1502-1511. (10.1093/mnras/sty1099)
- Priestley, F. D., Viti, S. and Williams, D. A. 2018. An efficient method for determining the chemical evolution of gravitationally collapsing prestellar cores. Astronomical Journal 156(2), article number: 51. (10.3847/1538-3881/aac957)
- Priestley, F. D., Barlow, M. J. and Viti, S. 2017. Modelling the ArH+ emission from the Crab nebula. Monthly Notices of the Royal Astronomical Society 472(4), pp. 4444-4455. (10.1093/mnras/stx2327)
- Holdship, J., Viti, S., Jiménez-Serra, I., Makrymallis, A. and Priestley, F. 2017. UCLCHEM: A Gas-grain Chemical Code for Clouds, Cores, and C-Shocks. Astronomical Journal 154(1), pp. 38. (10.3847/1538-3881/aa773f)
Ymchwil
Fy ngwaith yng Nghaerdydd yw rhedeg modelau MHD o ffilamentau mewn rhanbarthau sy'n ffurfio sêr. Gall newid cryfder a chyfeiriadedd maes magnetig newid yn llwyr sut mae'r ffilament yn tyfu a darnau, gydag effeithiau dilynol ar y creiddiau prestellar a phroserol wedi'u ffurfio. Gan nad oes unrhyw ffordd uniongyrchol o fesur dwysedd nwy mewn amgylcheddau moleciwlaidd, rwyf hefyd yn gohirio'r modelau hyn gyda chod astrocemegol i chwilio am amrywiadau mewn moleciwlau arsylwi, a allai ddarparu prawf glân o ddamcaniaethau ffurfiant sêr.
Ar ben arall y cylch bywyd serol, mae gen i ddiddordeb hefyd mewn llwch a ffurfiwyd (a dinistrio) gan uwchnofae. Mae'n bosibl mai uwchnofa cwymp craidd yw'r brif ffynhonnell o lwch yn y bydysawd cynnar, ac yn bendant nhw yw prif ffynhonnell dinistr. Rwy'n cyfuno modelau allyriadau llwch damcaniaethol ag arsylwadau isgoch i ymchwilio i eiddo llwch y tu hwnt i'r màs a'r tymheredd a ddychwelir gan ffitiau'r corff du syml wedi'u haddasu, fel y cyfansoddiad a'r dosbarthiad maint.
Bywgraffiad
Fe wnes i MSci Astroffiseg yn UCL, gan weithio ar fodelau astrocemegol o ffurfio sêr ar gyfer prosiect fy meistr. Ar ôl methu â chael unrhyw gynigion mewn ffurfiant seren, arhosais yn UCL ar gyfer fy PhD, a oedd yn cael ei rannu rhwng allyriad moleciwlaidd o nifwlau wedi'u ïoneiddio a llwch yn weddillion supernova. Bûm yn postdoc yn UCL am ychydig llai na blwyddyn, gan barhau i weithio ar lwch uwchnofa tra hefyd yn dechrau ffurfio sêr eto, cyn symud i Gaerdydd ar gyfer fy swydd bresennol.
