Prof Tom Millar

The Molecular Universe Summer School, Les Houches 25-30 September 2005

Example Astrochemical Model

If you would like to download my powerpoint presentations, please do so here - Lecture 1 , Lecture 2 , and Lecture 3 . You can also obtain a copy of my talk on Presentation Skills

The Astrochemistry of External Galaxies

Teaching Links

Research Interests

• Astrochemistry, including that of interstellar and circumstellar clouds, with particular emphasis on the cyanopolyynes, hot molecular cores in regions of star formation, particularly the chemistry of alcohols, - for a popular view of this research, click here, - molecules in regions of star formation, including protoplanetary disks, and star death, and molecular clouds in external galaxies.
• Physics of the interstellar medium including the excitation of molecular hydrogen in protoplanetary disks
• Physical, chemical and optical properties of interstellar dust.
• Spectral line surveys e.g. the 330-360 GHz SEST survey of G34.3+0.15. Click for the paper. (Note that this version of the paper does not contain the figures). A summary of the results is given here. A more recently published spectral line survey is the SEST 218-263 GHz scan of 3 positions in the Sgr B2 molecular cloud in the Galactic Centre. The paper discussing the observational data appears in the August 1998 issue of the Astrophyiscal Journal Supplement Series and an analysis of the data in the Supplement Series in 2000.
• Millimetre and submillimetre observations of interstellar molecules. Recent work has concentrated on a study of 14 hot molecular cores, and on a spectral line survey and molecular line images of the proto-binary source IRAS 16293-2422.
• Fundamental chemical kinetic data e.g. reaction rate data. The paper describing this work in detail has been published in the Astronomy & Astrophysics Supplement Series. The RATE99 data file and related material has its own web site: Rate99.co.uk. A new relaease of the data base, RATE05, is due for release shortly
• The interaction between chemistry and astronomy in particular the fractionation of isotopes in interstellar molecules, the formation of multiply deuterated species in interstellar clouds, and the use of deuterium fractionation to probe the physics of star formation.
• Identifying important chemical reactions for study in the laboratory, in particular those involving dissociative recombination of molecular ions with electrons.

Recent publications

Preprints

1. P Hall and T J Millar: Complex Molecule Formation in Hot Cores Astron. Astrophys., submitted
2. P M E Ruffle, T J Millar, H Roberts, D A Lubowich, C Henkel, J M Pasachoff and C Brammer: Galactic Edge Clouds I. Molecular Line Observations and Chemical Modelling of Edge Cloud 2 Astrophys. J., submitted
3. A J Walsh, J F Chapman, M G Burton, M Wardle and T J Millar: ATCA 1.2cm Observations of the Massive Star Forming Region G305.2+0.2 Mon. Not. R. astr. Soc., submitted
4. H Roberts and T J Millar: A Survey of [D2CO]/[H2CO] and [N2D+]/[N2H+] ratios Towards Protostellar CoresAstron. Astrophys., in press

1. A J Remijan, J M Hollis, F J Lovas, M A Cordiner, T J Millar, A J Markwick-Kemper and P R Jewell: Detection of C8H- and Comparison with C8H toward IRC+10216 Astrophys. J. Letters, 664, L47-L50 (2007)
2. T J Millar, C Walsh, M A Cordiner, R Ni Chuimin and E Herbst: Hydrocarbon Anions in Interstellar Clouds and Circumstellar Envelopes Astrophys. J. Letters, 662, L87-L90 (2007)
3. T J Millar: Chemistry in the Circumstellar Medium: Unveiling the Dust Formation Zone in Science with ALMA: A New Era for Astrophysics, (ed. R Bachiller), Springer, in press
4. J Woodall, M Agundez, A J Markwick-Kemper and T J Millar: The UMIST Database for Astrochemistry 2006, Astron. Astrophys., 466, 1197-1204 (2007)
5. H Nomura, Y Aikawa, M Tsujimoto, Y Nakagawa and T J Millar: Molecular Hydrogen Emission from Protoplanetary Disks II. Effects of X-ray Irradiation and Dust EvolutionAstrophys. J., 661, 334-353 (2007)
6. R Plume, G A Fuller, F P Helmich, F F S van der Tak, H Roberts, J Bowey, J Buckle, H Butner, E Caux, C Ceccarelli, E F van Dishoeck, P Friberg, A G Gibb, J Hatchell, M R Hogerheide, H Matthews, T J Millar, G Mitchell, T J T Moore, V Ossenkopf, J M C Rawlings, J Richer, M Roellig, P Schilke, M Spaans, A G G M Tielens, M A Thompson, S Viti, B Weferling, G J White, J Wouterloot, J Yates and M Zhu: James Clerk Maxwell Telescope Spectral Line Survey PASP, 119, 102-111 (2007)

1. S-J Kim, H-D Kim, Y Lee, Y C Minh, R Balasubramanyam, M G Burton, T J Millar and D-W Lee: A Molecular Line Survey of W3(OH) and W3(IRS5) from 84.7 to 115.6 GHz: Observational Data and Analyses Astrophys. J. Suppl. Ser., 162, 161-206 (2006)
2. T J Millar: What do we know and what do we need to know? in IAU Symposium 231 'Astrochemistry: Recent Successes and Current Challenges', eds. D C Lis, G A Blake and E Herbst, Cambridge University Press, 77-86 (2006)
3. M A Thompson, J Hatchell, A J Walsh, G H Macdonald and T J Millar: A SCUBA Imaging Survey of Ultracompact HII Regions I. The Environments of Massive Star Formation, Astron. Astrophys.,453, 1003-1026 (2006)
4. H Roberts and T J Millar: Deuterated H₃⁺ as a Probe of Isotope Fractionation in Star-Forming Regions Phil. Trans. Royal Soc.,A, 364, 3063-3080 (2006)
5. W D Geppert, M Hamberg, R D Thomas, F Osterdahl, F Hellberg, V Zhaunerchyk, A Ehlerding, T J Millar, H Roberts, J Semaniak, M af Ugglas, A Kallberg, A Simonsson, M Kaminska and M Larsson: Dissociative Recombination of Protonated Methanol Faraday Discussions, 133, 177-190 (2006)

1. P M Woods, L-A Nyman, F L Schoeir, A A Zijlstra, T J Millar and H Olofsson: Molecules in Proto-Planetary Nebulae Astron. Astrophys., 429, 977-992 (2005)
2. T J Millar and P M Woods: The Chemistry of Proto-Planetary Nebulae in `The Dusty and Molecular Universe', ed. A. Wilson, ESA SP-577, 229-234 (2005)
3. T J Millar: Deuterium in Interstellar Clouds Astronomy and Geophysics,46, 2.29-2.32 (2005)
4. A J Markwick, S B Charnley, H M Butner and T J Millar: Interstellar CH₃CCD Astrophys. J., 627, L117-L120 (2005)
5. H Nomura and T J Millar: Molecular Hydrogen Emission from Protoplanetary Disks Astron. Astrophys., 438, 923-938 (2005)
6. D A Lubowich, N Kuno, H Roberts, T J Millar, C Henkel, J Pasachoff and R Mauersberger: Deuterium Nucleosynthesis in AGN: Is D Cosmological? Nuclear Physics A, 758, 795c-798c (2005)
7. H Montaigne, W D Geppert, J Semaniak, F Osterdahl, F Hellberg, R D Thomas, M af Ugglas, H Roberts, T J Millar, V Zhaunerchyk, M Kaminska, A Al-Khalili, A Kallberg and M Larsson: Dissociative Recombination of the Thioformyl (HCS⁺) and Carbonyl Sulfide (COS⁺) Cations Astrophys. J.,631, 653-659 (2005)

1. S B Charnley, P Ehrenfreund, T J Millar, A C A Boogert, A J Markwick, H M Butner, R Ruiterkamp and S D Rodgers: Observational Tests for Grain Chemistry: Posterior Isotopic Labelling Mon. Not. R. astr. Soc., 347, 157-162 (2004)
2. H Nomura and T J Millar: The Physical and Chemical Structure of Hot Molecular Cores Astron. Astrophys., 414, 409-423 (2004)
3. M Ilgner, Th Henning, A J Markwick and T J Millar: Transport Processes and Chemical Evolution in Steady Accretion Disk Flows Astron. Astrophys., 415, 643-659 (2004)
4. W D Geppert, R Thomas, J Semaniak, A Ehlerding, T J Millar, F Osterdahl, M af Ugglas, N Djuric, A Paat and M Larsson: Dissociative Recombination of N₂H⁺: Evidence for the Fracture of the N-N Bond Astrophys. J., 609, 459-464 (2004)
5. T J Millar: Growth of Large Molecules and Small Grains in `The Dense Interstellar Medium in Galaxies', eds. S Pfalzner, C Kramer, C Staubmeier and A Heithausen, Springer, 507-515 (2004)
6. T J Millar: Organic Molecules in the Interstellar Medium in `Astrobiology: Future Perspectives', eds. P Ehrenfreund et al., Kluwer, 17-31 (2004)
7. H Roberts, E Herbst and T J Millar: The Chemistry of Multiply Deuterated Species in Cold Dense Interstellar Cores Astron. Astrophys., 424, 905-917 (2004)
8. D A Lubowich, G Brammer, H Roberts, T J Millar, C Henkel and J M Pasachoff: The Chemical Composition of a Molecular Cloud at the Outer Edge of the Galaxy in 'Carnegie Observatories Astrophysics Series, Vol. 4: Origin and Evolution of the Elements', eds. A McWilliam and M Rauch, (Pasadena: Carnegie Observatories, http://www.ociw.edu/ociw/symposia/series/symposium4/proceedings.html)

1. C J Yate and T J Millar: Turbulent Diffusion and Mixing in Interstellar Dark Clouds with Adsorption onto Grains Astron. Astrophys., 399, 553-565 (2003)
2. J M Brown and T J Millar: Modelling Enhanced Density Shells in the Circumstellar Shell of IRC+10216 Mon. Not. R. astr. Soc., 339, 1041-1047 (2003)
3. P M Woods, T J Millar, E Herbst and A A Zijlstra: The Chemistry of Proto-Planetary Nebulae Astron. Astrophys., 402, 189-199 (2003)
4. S Petrie, T J Millar and A J Markwick: NCCN in TMC-1 and IRC+10216 Mon. Not. R. astr. Soc., 341, 609-616 (2003)
5. H Roberts, E Herbst and T J Millar: Enhanced Deuterium Fractionation in Dense Interstellar Cores Resulting from Multiply Deuterated H3+ Astrophys. J. Letts., 591, L41-L44 (2003)
6. T J Millar: Molecule and Grain Formation in `Asymptotic Giant Branch Stars' eds. H J Habing & H Olofsson, Springer, NY, 247-289 (2003)
7. T J Millar: Deuterium Fractionation in Interstellar Clouds in `Solar System History from Isotopic Volatile Signatures', a special issue of Space Science Reviews, 106, 73-86 (2003)
8. R Kallenbach, F Robert, J Geiss, E Herbst, H Lammer, B Marty, T J Millar, U Ott and R O Pepin: Sun and Protosolar Nebula in `Solar System History from Isotopic Volatile Signatures', a special issue of Space Science Reviews, 106, 319-376 (2003)
9. T J Millar, H Nomura and A J Markwick: Two-dimensional Models of Protoplanetary Disk Chemistry Astrophys. Sp. Sci., 285, 761-768 (2003)
10. T J Millar: The Importance of the Gas-Grain Interaction in `Chemistry as a Diagnostic of Star Formation', eds. C L Curry and M Fich, NRC Canada Press, Ottawa, 37-44 (2003)
11. C J Yate and T J Millar: Diffusive Mixing and Grain Accretion in Dark Clouds in `Chemistry as a Diagnostic of Star Formation', eds. C L Curry and M Fich, NRC Canada Press, Ottawa, 458-460 (2003)

1. A J Markwick, T J Millar & S B Charnley: CH₂DCCH along the TMC-1 Ridge , Astron. Astrophys., 381, 560-565 (2002)
2. H Roberts, G A Fuller, T J Millar, J Hatchell & J V Buckle: A Survey of [HDCO]/[H₂CO] and [DCN]/[HCN] Ratios towards Low-Mass Protostellar Cores , Astron. Astrophys., 381, 1026-1038 (2002)
3. A J Markwick, M Illgner, T J Millar & Th Henning: Molecular Distributions in the Inner Regions of Protostellar Disks , Astron. Astrophys., 385, 632-646 (2002)
4. P M Woods, T J Millar, A A Zijlstra & E Herbst: The Synthesis of Benzene in the Proto-Planetary Nebula CRL 618 , Astrophys. J. Letts., 574, L167-L170 (2002)
5. H Roberts, E Herbst & T J Millar: The Importance of New Rate Coefficients for Deuterium Fractionation Reactions on Interstellar Chemistry Mon. Not. R. astr. Soc., 336, 283-290 (2002)
6. H Roberts, G A Fuller, T J Millar, J Hatchell & J V Buckle: Molecular D/H Ratios in the Dense Gas Surrounding Low-Mass Protostars in `Deuterium in the Universe', a special issue of Planetary and Space Science 50, 1173-1178 (2002)
7. T J Millar: Modelling Deuterium Fractionation in Interstellar Clouds in `Deuterium in the Universe', a special issue of Planetary and Space Science 50, 1189-1195 (2002)

1. J Hatchell, G A Fuller & T J Millar: Shocks in High Mass Star Forming Regions: SiO in G34.26 Astron. Astrophys., 372, 281-290 (2001)
2. A Ali, O M Shalabiea, M S El-Nawawy & T J Millar: Gas-Phase Models for the Evolved Planetary Nebulae NGC 6781, M4-9, and NGC 7293 Mon. Not. R. astr. Soc., 325, 881-885 (2001)
3. A J Markwick, S B Charnley & T J Millar: Deuterium Fractionation Along the TMC-1 Ridge Astron. Astrophys., 376, 1054-1063 (2001)
4. T J Millar, J R Flores & A J Markwick: Sulphur-Bearing Carbon Chains in IRC+10216 Mon. Not. R. astr. Soc., 327, 1173-1177 (2001)
5. T J Millar: Molecules in High-Mass Star-Forming Regions - Theory and Observation, in Science with the Atacama Large Millimeter Array (ALMA), ed. A Wootten, ASP Conference Series, vol. 235, pp. 45-58 (2001)

1. J Hatchell, G A Fuller, T J Millar, M A Thompson & G H Macdonald: SCUBA imaging of high mass star formation regions Astron. Astrophys., 357, 637-650 (2000)
2. A J Markwick, T J Millar & S B Charnley: On the Abundance Gradients of Organic Molecules along the TMC-1 Ridge Astrophys. J., 535, 256-265 (2000)
3. A Nilsson, A Hjalmarson, P Bergman & T J Millar: SO/CS observations of molecular clouds II. Analysis and modelling of the abundance ratios - probing O₂/CO with SO/CS ? Astron. Astrophys., 358, 257-275 (2000)
4. D A Lubowich, J M Pasachoff, T A Balonek, T J Millar, C Tremonti, H Roberts & R P Galloway: Deuterium in the Galactic Center as a Result of Recent Infall of Low-Metallicity Gas Nature, 405, 1025-1027 (2000)
5. T J Millar: The Evolution of Solar Systems Contemporary Physics, 41, 191-202 (2000)
6. A J Markwick & T J Millar: ISO-SWS Observations of CO₂ and H₂O in R Cassiopeiae Astron. Astrophys., 359, 1162-1168 (2000)
7. T J Millar, E Herbst & R P A Bettens: Large Molecules in the Envelope Surrounding IRC+10216 Mon. Not. R. astr. Soc., 316, 195-203 (2000)
8. T J Millar, M Walmsley, C Rebrion-Rowe, L d'Hendecourt, S Saito & F Rostas: Molecular Data Needs in Astrochemistry, in Astrochemistry: From Molecular Clouds to Planetary Systems eds. Y C Minh & E F van Dishoeck, ASP Conference Series, pp. 303-314 (2000)
9. A Nummelin, P Bergman, A Hjalmarson, P Friberg, W M Irvine, T J Millar, M Ohishi & S Saito: A Three-Position Spectral Line Survey of Sagittarius B2 between 218 and 256 GHz II. Data Analysis Astrophys. J. Suppl. Ser., 128, 213-244 (2000)
10. H Roberts & T J Millar: Modelling of Deuterium Chemistry and its Application to Molecular Clouds Astron. Astrophys., 361, 388-398 (2000)
11. T J Millar, H Roberts, A J Markwick & S B Charnley: The Role of H₂D⁺ in the Deuteration of Interstellar Molecules Philosphical Transactions A, 358, 2535-2547 (2000)
12. Y H Le Teuff, T J Millar & A J Markwick: The UMIST Database for Astrochemistry 1999 Astron. Astrophys. Suppl. Ser., 146, 157-168 (2000). Visit the Rate99 Web Site for further information on the database, associated tables, software and applets available.
13. T J Millar: Interstellar and Circumstellar Chemistry: The UMIST Database in Atomic & Molecular Data and Their Applications: ICAMDATA Second International Conference, eds. K A Berrington & K L Bell (AIP Conference Proceedings, 543), pp. 81-91 (2000)
14. H Roberts & T J Millar: Gas-Phase Formation of Doubly-Deuterated Species Astron. Astrophys., 364, 780-784 (2000)

1. M A Thompson, G H Macdonald & T J Millar: A 330-360 GHz Spectral Survey of G34.3+0.15 III. The Outer Halo, Astron. Astrophys., 342, 809-822 (1999)
2. J Hatchell, H Roberts & T J Millar: Limits on the HDS/H₂S Abundance Ratios in Hot Molecular Cores Astron. Astrophys., 346, 227-232 (1999)

1. Y-N Chin, C Henkel, T J Millar, J B Whiteoak & M Marx-Zimmer: Molecular Abundances in the Magellanic Clouds III. LIRS 36, A Star-Forming Region in the Small Magellanic Cloud, Astron. Astrophys., 330, 901-909 (1998)
2. J Hatchell, T J Millar & S D Rodgers: The DCN/HCN Abundance Ratio in Hot Molecular Cores Astron. Astrophys., 332, 695-702 (1998)
3. K Willacy & T J Millar: Desorption Processes and the Deuterium Fractionation in Molecular Clouds Mon. Not. R. astr. Soc., 298, 562-568 (1998)
4. A Nummelin, P Bergman, A Hjalmarson, P Friberg, W M Irvine, T J Millar, M Ohishi & S Saito: A Three-Position Spectral Line Survey of Sagittarius B2 between 218 and 256 GHz I. The Observational Data Astrophys. J. Suppl. Ser., 117, 427-529 (1998)
5. J Hatchell, M A Thompson, T J Millar & G H Macdonald: Sulphur Chemistry and Evolution in Hot Cores, Astron. Astrophys., 338, 713-722 (1998)
6. K Willacy, H Klahr, T J Millar & Th Henning: Gas and Grain Chemistry in a Protoplanetary Disk, Astron. Astrophys., 338, 995-1005 (1998)
7. T J Millar: Important Atomic and Molecular Processes in Galactic Chemistry, in Stellar Evolution, Stellar Explosions and Galactic Chemical Evolution, ed. A Mezzacappa, IoP Publishing Ltd., pp. 193-204 (1998)
8. T J Millar & J Hatchell: Chemical Models of Hot Molecular Cores, Faraday Discuss., 109, 15-30 (1998)
9. J Hatchell, M A Thompson, T J Millar & G H Macdonald: A Survey of Molecular Line Emission Towards Ultracompact HII Regions, Astron. Astrophys. Suppl. Ser., 133, 29-50 (1998)
10. T J Millar: Molecular Synthesis in the External Envelopes of AGB Stars, in The Molecular Astrophysics of Stars and Galaxies, eds. T W Hartquist & D A Williams, Oxford University Press, pp. 331-346 (1998)

1. Y-N Chin, C Henkel, J B Whiteoak, T J Millar, M Hunt & C Lemme: Molecular Abundances in the Magellanic Clouds I. A Multiline Study of Five Cloud Cores, Astron. Astrophys., 317, 548 (1997)
2. T J Millar, P R A Farquhar & K Willacy: The UMIST Database for Astrochemistry 1995, Astron. Astrophys. Suppl. Ser., 121, 139 (1997)
3. T J Millar: Models of Hot Molecular Cores, in Molecules in Astrophysics: Probes and Processes (IAU Symposium 178), ed. E F van Dishoeck, Kluwer: Dordrecht, pp. 75-88 (1997)
4. K Willacy & T J Millar: Chemistry in Oxygen-Rich Circumstellar Envelopes, Astron. Astrophys., 324, 237-248 (1997)
5. T J Millar, G H Macdonald & A G Gibb: A 330-360 GHz Spectral Survey of G34.3+0.15 II. Chemical Modelling, Astron. Astrophys., 325, 1163-1173 (1997)
6. M S El-Nawawy, D A Howe & T J Millar: Chemical Evolution in Collapsing Cores, Mon. Not. R. astr. Soc., 292, 481-489 (1997)
7. A J Markwick & T J Millar: Carbon-bearing Molecules in Oxygen-rich Circumstellar Envelopes, in Dust and Molecules in Evolved Stars, eds. I Cherchneff & T J Millar, Kluwer: Dordrecht, pp. 255-258 (1997)
8. K Willacy & T J Millar: Carbon Chemistry in Oxygen-rich Circumstellar Envelopes, in Dust and Molecules in Evolved Stars, eds. I Cherchneff & T J Millar, Kluwer: Dordrecht, pp. 281-284 (1997)
9. T J Millar & J Hatchell: Models and Observations of Hot Molecular Cores, in The Interaction of Stars with Their Environment (Advanced School and Workshop, Visegrad, Hungary), eds. L V Toth, M Kun & L Szabados, Comm. Konkoly Observatory of the Hungarian Academy of Sciences No. 100, 12, 207-219 (1997)

1. M L Kelly, G H Macdonald & T J Millar: Chemical Evolution in the Circumstellar Structure of B5 IRS1, Mon. Not. R. astr. Soc., 279, 1210 (1996)
2. S D Rodgers & T J Millar: The Chemistry of Deuterium in Hot Molecular Cores, Mon. Not. R. astr. Soc., 280, 1046 (1996)
3. Y-N Chin, C Henkel, T J Millar, J B Whiteoak & R Mauersberger: Molecular Abundances in the Magellanic Clouds II. Deuterated Species in the LMC, Astron. Astrophys., 312, L33 (1996)
4. D A Howe & T J Millar: Chemistry in Anisotropic Asymptotic Giant Branch Winds, Mon. Not. R. astr. Soc., 282, L21-L25 (1996)
5. G H Macdonald, A G Gibb, R J Habing & T J Millar: A 330-360 GHz Spectral Survey of G34.3+0.15 I. Data and Physical Analysis, Astron. Astrophys. Suppl. Ser., 119, 333 (1996)
6. E F van Dishoeck, F P Helmich et al.: A Search for Interstellar Gas-Phase CO2: Gas/Solid Abundance Ratios, Astron. Astrophys., 315, L349 (1996)

1. T J Millar, G H Macdonald & R J Habing: The Detection of Hot Ethanol in G34.3+0.15, Mon. Not. R. astr. Soc., 273, 25 (1995)
2. S Huettemeister, C Henkel, R Mauersberger, N Brouillet, T Wiklind & T J Millar: Dense Gas in Nearby Galaxies IX. A Survey for HNC, Astron. Astrophys., 295, 571 (1995)
3. G H Macdonald, R J Habing & T J Millar: Structure and Chemistry in the Hot Molecular Core G34.3+0.15, in Circumstellar Matter, eds. G D Watt & P M Williams, Kluwer: Dordrecht, pp. 177-180 (1995)
4. S B Charnley, M E Kress, A G G M Tielens & T J Millar: Interstellar Alcohols, Astrophys. J., 448, 232 (1995)
5. L T Little, M L Kelly, R J Habing & T J Millar: A Study of Carbon Monoxide and Neutral Carbon in the S106 Molecular Core, Mon. Not. R. astr. Soc., 277, 307 (1995)
6. T J Millar, E Roueff, S B Charnley & S D Rodgers: The Chemistry of Complex Molecules in Interstellar Clouds, Int. J. Mass Spectrom. Ion Proc., 149/150, 389 (1995)

1. D Smith, P Spanel & T J Millar: The Role of H+ and H3+ Ions in the Degradation of Interstellar Molecules, Mon. Not. R. astr. Soc., 266, 31 (1994)
2. D A Howe, T J Millar, P Schilke & C M Walmsley: Observations of Deuterated Cyanoacetylene in Dark Clouds, Mon. Not. R. astr. Soc., 267, 59 (1994)
3. E Herbst, H-H Lee, D A Howe & T J Millar: The Effect of Rapid Neutral-neutral Reactions on Chemical Models of Dense Interstellar Clouds, Mon. Not. R. astr. Soc., 268, 335 (1994)
4. P R A Farquhar, T J Millar & E Herbst: The Effect of Varying Cosmic ray Ionisation Rates on Dark Cloud Chemistry, Mon. Not. R. astr. Soc., 269, 641 (1994)
5. T J Millar & E Herbst: A New Chemical Model of the Circumstellar Envelope Surrounding IRC+10216, Astron. Astrophys., 288, 561 (1994)
6. S B Charnley & T J Millar: The Chemistry of Phosphorus in Hot Molecular Cores, Mon. Not. R. astr. Soc., 270, 570 (1994)

Duties

• Chairman of the JCMT Board
• Vice-President of Division VI (Interstellar Matter) of the IAU.
• Member of the IAU Working Group on Astrochemistry.