Professor Jonathan I Davies BA, Bsc, PhD

Professor Jonathan I Davies

BA, Bsc, PhD

Astronomy Group

School of Physics and Astronomy

Email:
jonathan.davies@astro.cf.ac.uk
Telephone:
+44 (0)29 2087 5255
Location:
N/3.19, Queen's Buildings - North Building, 5 The Parade, Newport Road, Cardiff, CF24 3AA
Available for postgraduate supervision

I have previously been involved in almost all operational aspects of the School of Physics and Astronomy from student recruitment, teaching and examinations. I am currently on a research only contract as my work is fully financed by an European grant. Current research interests are cosmic dust, low surface brightness galaxies and the history of astronomy in Wales.

I left school at the age of 16 and did an apprenticeship as a motor mechanic which has helped me enormously in all sorts of practical jobs that otherwise I would not have had the courage to tackle. After various other jobs I graduated in Physics from Bristol University in 1986. In the same year I obtained an Open University degree and started a PhD here in Cardiff. I have been here ever since starting off doing postgraduate research and then lecturing. I am now a Professor in the school with a special interest in extra-galactic astronomy.

Honours and awards

I have organised three big international conferences here in Cardiff in each case chairing the scientific organising committee. 'The Opacity of Spiral Discs', 1994, 'The Low Surface Brightness Universe', 1998, 'Dark Galaxies and Lost Baryons', 2007. I have been involved over many years with time allocation to telescopes and at one time chaired the time allocation committee of the Issac Newton Group. I was chair of the Particle Physics and Astronomy Research Council (PPARC) wide field astronomy panel and have chaired a number of rolling grant review panels. I was on the PPARC panel that advised on the allocation of £25M of government e-science money. I regularly referee papers for scientific journals and applications for research grants and fellowships.

I am principle investigator of the 2.1 million euro EU funded project DustPedia.

I am currently external examiner for Physics at both Bristol and Warwick Universities.

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

1996

  • Trewhella, M., Davies, J. I. and Disney, M. J. 1996. Where does dust absorb most light?. Presented at: International Conference on "Cold Dust and Galaxy Morphology", Johannesburg, South Africa, 22-26 January 1996 Presented at Block, D. L. and Greenberg, J. M. eds.New extragalactic perspectives in the new South Africa: proceedings of the International Conference on "Cold Dust and Galaxy Morphology" held in Johannesburg, South Africa, January 22-26, 1996. Astrophysics and Space Science Library, Vol. 209. Dordrecht: Kluwer Academic Publishers pp. 568-569.
  • Davies, J. I., Trewhella, M. and Jones, H. 1996. The distribution of cold dust within the galaxy. Presented at: International Conference on “Cold Dust and Galaxy Morphology, Johannesburg, South Africa, 22–26 January 1996 Presented at Block, D. L. and Greenberg, J. M. eds.The Distribution of Cold Dust within the Galaxy:Proceedings of the International Conference on “Cold Dust and Galaxy Morphology” held in Johannesburg, South Africa, January 22–26, 1996. Astrophysics and Space Science Library, Vol. 209. Netherlands: Springer pp. 525-527., (10.1007/978-94-009-0335-7_67)
  • Jones, H., Davies, J. I. and Trewhella, M. 1996. The distribution of galactic inclinations -- a clue to opacity?. Monthly Notices of the Royal Astronomical Society 283(1), pp. 316-324. (10.1093/mnras/283.1.316)
  • Tuffs, R. J.et al. 1996. ISOPHOT Maps of NGC 6946 in the range λ 60-200μm.. Astronomy and Astrophysics 315, pp. L149-L152.
  • Jones, H., Davies, J. I. and Trewhella, M. 1996. The distribution of galactic inclinations - a clue to opacity?. Monthly Notices of the Royal Astronomical Society 283, pp. 316-324.
  • Morshidi, Z., Smith, R. and Davies, J. I. 1996. An automated search for LSB Dwarf Elliptical galaxies. Presented at: New light on galaxy evolution: 171st Symposium of the International Astronomical Union, Heidelberg, Germany, 25-30 June 1995 Presented at Bender, R. and Davies, R. eds.New light on galaxy evolution: proceedings of the 171st Symposium of the International Astronomical Union, Vol. 171. International Astronomical Union Symposia, Vol. 171. Dordrecht: Kluwer Academic pp. 423-423.

1995

  • Jones, H., Davies, J. and Trewhella, M. 1995. The distribution of galaxy inclinations. In: Davies, J. and Burstein, D. eds. The opacity of spiral disks: proceedings of the NATO Advanced Research Workshop on the opacity of sprial disks, Cardiff, Wales, July 25-29, 1994. NATO Advanced Science Institutes Series C: mathematical and physical sciences, Vol. 469. Kluwer Academic Publishers
  • Trewhella, M., Disney, M. and Davies, J. I. 1995. QSO Absorption by Nearby Galaxies. Presented at: QSO absorption lines: an ESO workshop, Garching, Germany, 21-24 November 1994 Presented at Meylan, G. ed.QSO absorption lines: proceedings of the ESO workshop held at Garching, Germany, 21-24 November 1994. ESO Astrophysics Symposia Berlin: Springer Verlag pp. 37-38.
  • Davies, J. I., Trewhella, M. and Disney, M. 1995. Opacity from luminosity functions. Presented at: NATO Advanced Research Workshop on the Opacity of Spiral Disks, Cardiff, UK, 25-29 July 1994 Presented at Davies, J. I. and Burstein, D. eds.The Opacity of Spiral Disks. NATO Science Series C, Vol. 469. Dordrecht: Springer pp. 293-297.
  • Jones, H., Davies, J. I. and Trewhella, M. 1995. The distribution of galactic inclinations : a clue to opacity?. Presented at: NATO Advanced Research Workshop on the Opacity of Spiral Disks, Cardiff, UK, 25-29 July 1994 Presented at Davies, J. I. and Burstein, D. eds.The Opacity of Spiral Disks. NATO Science Series C, Vol. 469. Dordrecht: Springer pp. 115-119.
  • Davies, J. I., Jones, H. and Trewhella, M. 1995. Why a distance selection effect invalidates the Burstein, Haynes and Faber opacity test. Presented at: NATO Advanced Research Workshop on the Opacity of Spiral Disks, Cardiff, UK, 25-29 July 1994 Presented at Davies, J. I. and Burstein, D. eds.The Opacity of Spiral Disks. NATO ASI series. Series C, Mathematical and physical sciences, Vol. 469. Dordrecht: Springer pp. 85-88.
  • Davies, J. I. and Burstein, D. eds. 1995. The opacity of spiral disks. NATO Advanced Science Institutes Series C, Vol. 469. Dordrecht: Kluwer Academic Publishers.
  • Davies, J. I., Jones, H. and Trewhella, M. 1995. The dependence of disc galaxy properties on viewing angle: simulating the observations. Monthly Notices of the Royal Astronomical Society 273(3), pp. 699-710.

1994

  • Smith, R. M.et al. 1994. Automatic detection of low-surface brightness galaxies on digital images. Presented at: Astronomy from wide-field imaging : proceedings of the 161st Symposium of the International Astronomical Union, Potsdam, Germany,, 23–27 August 1993 Presented at MacGillivray, H. T. et al. eds.Automatic Detection of Low-Surface Brightness Galaxies on Digital: Proceedings of the 161st Symposium of the International Astronomical Union, Held in Potsdam, Germany, August 23–27, 1993. International Astronomical Union, Vol. 161. Netherlands: Springer pp. 549-552., (10.1007/978-94-011-1146-1_116)
  • Jones, J. B.et al. 1994. The Hitchhiker parallel camera and studies of faint galaxies. Presented at: 161st Symposium of the International Astronomical Union, Potsdam, Germany, 23-27 August 1993 Presented at MacGillivray, H. T. et al. eds.Astronomy from Wide-field Imaging: proceedings of the 161st Symposium of the International Astronomical Union, held in Potsdam, Germany, August 23-27, 1993. Boston, MA: Kluwer Academic Publishers pp. 77-78.
  • Smith, R.et al. 1994. Automated detection of Low-Surface Brightness Galaxies on digital images. Presented at: Astronomy from Wide-Field Imaging: 161st Symposium of the International Astronomical Union, Potsdam, Germany, 23-27 August 1993 Presented at MacGillivray, H. T. et al. eds.Astronomy from Wide-Field Imaging: Proceedings of the 161st Symposium of the International Astronomical Union, Held in Potsdam, Germany, August 23-27, 1993. International Astronomical Union Symposia, Vol. 161. Dordrecht: Kluwer Academic pp. 549-552.
  • Phillipps, S., Davies, J. I. and Turner, J. A. 1994. Recent results from low surface brightness galaxy surveys. Presented at: 161st Symposium of the International Astronomical Union, Potsdam, Germany, 23-27 August 1993 Presented at MacGillivray, H. T. et al. eds.Astronomy from Wide-field Imaging: proceedings of the 161st Symposium of the International Astronomical Union held in Potsdam, Germany, August 23-27, 1993. Boston, MA: Kluwer Academic Publishers pp. 545-547.
  • Davies, J. I. and Morgan, I. 1994. Why are dwarf galaxies so difficult to find?. Presented at: ESO-OHP Workshop Dwarf Galaxies, Observatoire de Haute-Provence, France, 6-9 September 1993 Presented at Meylan, G. and Prugniel, P. eds.Dwarf galaxies: ESO/OHP workshop, Observatoire de Haute-Provence, France, 6-9 September 1993 : proceedings. ESO Conference and Workshop Proceedings, Vol. 49. Garching bei München: European Southern Observatory pp. 19-21.
  • Driver, S. P.et al. 1994. Dwarf galaxies at z=0.2: photometry of the cluster Abell: 963. Monthly Notices of the Royal Astronomical Society 268(2), pp. 393-404.
  • Davies, J. I.et al. 1994. A search for large low surface brightness galaxies using deep CCD data. Monthly Notices of the Royal Astronomical Society 269(2), pp. 349-364.
  • Davies, J. I.et al. 1994. Understanding the surface-brightness distribution of disc galaxies. Monthly Notices of the Royal Astronomical Society 268(4), pp. 984-988.
  • , . and , . 1994. Multicolour faint galaxy number counts with the Hitchhiker parallel CCD camera. Monthly Notices of the Royal Astronomical Society 266(1), pp. 155-178.

1993

1992

  • Davies, J. I. 1992. Hitching a ride on a large telescope. Astronomy Now 6(7), pp. 19-20.
  • Davies, J. I.et al. 1992. Hitchhiker and Super Hitchhikers. Presented at: ESO conference on progress in telescope and instrumentation technologies, ESO, Garching, Germany, 27-30 April 1992 Presented at Ulrich, M. ed.ESO Conference on Progress in Telescope and Instrumentation Technologies. ESO Conference and Workshop Proceedings, Vol. 42. Garching, Germany: European Southern Observatory pp. 765-768.
  • Phillipps, S. and Davies, J. I. 1992. Normal surface brightness dwarf galaxies in the Fornax cluster. Presented at: Digitised Optical Sky Surveys, Edinburgh, UK, 18-21 June 1991 Presented at MacGillivray, H. T. and Thomson, E. B. eds.Digitised optical sky surveys: proceedings of the Conference on "Digitised Optical Sky Surveys" held in Edinburgh, Scotland, 18-21 June 1991. Astrophysics and Space Science Library, Vol. 174. Dordrecht: Kluwer Academic pp. 295-298.

1991

  • Davies, J. I.et al. 1991. The Hitchhiker Parallel CCD camera. International Astronomical Union Commission 9; Working Group on "Wide-field imaging" Newsletter(1), pp. 37-37.
  • Phillipps, S.et al. 1991. Profiles of optically thick galaxies. Monthly Notices of the Royal Astronomical Society 253, pp. 496-504.
  • Phillipps, S. and Davies, J. I. 1991. A cross-correlation method for surface photometry. Monthly Notices of the Royal Astronomical Society 251, pp. 105-111.
  • Davies, J. I. 1991. What about missing light?. Presented at: Dynamics of disc galaxies, Varberg Castle, Sweden, 25-30 May 1991 Presented at Sundelius, B. ed.Dynamics of disc galaxies: the proceedings of a conference at Varberg Castle in Sweden, 25-30 May 1991. Göteborg: Dept. of Astronomy/Astrophysics, Göteborgs University, Chalmers University of Technology pp. 65-69.

1990

1989

1988

None - research only

I am currently interested in three primary areas of research:
1. I have been involved in numerous space based projects that have investigated the emission from cold dust (about 20K) from galaxies. Dust plays an important role in the evolution of the interstellar medium and in the chemical evolution of galaxies as a whole. I led the Herschel Space Telescope survey of the nearby Virgo galaxy cluster in which we consider the dust emission properties of the numerous galaxies of various morphological types. I am the principal investigator of the DustPedia project. DustPedia is a collaboration of six research establishments from across Europe (UK, Belgium, France, Greece and Italy). The project is funded by a European research grant. The objective is to better understand the role dust plays in the interstellar medium via modelling of; dust grain physical properties, spectral energy distributions and a full Monte Carlo radiative transfer analysis. The models are compared with our own extensive database primarily obtained from the Herschel Space Telescope database, but combined with data at other wavelengths giving spectral energy distributions measured at typically thirty points from the ultra-violet to the sub-mm.
2. I am interested in investigating the low surface brightness (LSB) universe. This is the possibility that there are numerous stars present in the Universe that reside in regions that are of such low surface density that they have as yet not been detected. The problem is one of detecting LSB features against what are relatively bright backgrounds. These LSB features maybe galaxies, both giant and dwarf, tidal features from galaxy interactions and material associated with the cosmic web. We are developing efficient algorithms to detect in an automated way these features and will hopefully apply these to large datasets such as that which will eventually become available from surveys such as LSST.
3. From an interest in the history of astronomy has developed some work in collaboration with members of the School of Archaeology on the possibility of using satellite imaging to measure and possibly discover new archaeological sites. Essentially by using some of the image processing techniques we use in astronomy. We are currently discussing a project with Historic England.

Current supervision

Daniel Prole

Research student

Ruth Evans

Research student

Areas of expertise