Publications and Preprints - Mark Wardle

From Never Eat Anything Bigger Than Your Head & Other Drawings by B. Kliban. Published 1976 by Workshop Publishing Company Inc., New York. ISBN 0-911194-67-4.

Papers are linked to their entries on NASA's Astrophysics Data System abstract service. In turn that provides links to preprints on the Cornell arXiv e-print server, and to the published paper, if available. You are always welcome to ask me nicely (wardle@physics.mq.edu.au) for a copy.

Papers listed on:  ADS    arXiv      (Back to Mark's home page)

In Press

Cyanopolyynes and sulphur bearing species in hot cores: chemical and line excitation models.
Chapman, J. F., Wardle, M., Millar, T. J., Burton, M. G., and Walsh, A. J. 2008. M.N.R.A.S.

Published

A search for OH 6 GHz maser emission towards supernova remnants.
McDonnell, K.E., Wardle, M., and Vaughan, A.E. 2008. M.N.R.A.S. 390:49-58.

Massive star formation in the molecular ring orbiting the black hole at the galactic center.
Yusef-Zadeh, F., Braatz, J., Wardle, M., and Roberts, D. 2008. Ap. J. Lett. 683:L147-L150.

A survey of hydroxyl toward supernova remnants: evidence for extended 1720 MHz maser emission.
Hewitt, J. W., Yusef-Zadeh, F., and Wardle, M. 2008. Ap. J. 683:189-206.

On the formation of compact stellar disks around Sagittarius A*.
Wardle, M., and Yusef-Zadeh, F. 2008. Ap. J. Lett. 683:L37-L40.

Magnetorotational instability in protoplanetary discs: the effect of dust grains.
Salmeron, R., and Wardle, M. 2008. M.N.R.A.S. 388:1223-1238.

Simultaneous Chandra, CSO and VLA observations of Sgr A*: the nature of flaring activity.
Yusef-Zadeh, F., Wardle, M., Heinke, C., Dowell, C. D., Roberts, D., Baganoff, F., and Bower, G. 2008. Ap. J. 682:361-372.

Massive star formation near Sgr A* and bimodal star formation in the nuclear disk.
Yusef-Zadeh, F., and Wardle, M. 2008. Massive Star Formation: Observations confront Theory, eds. H. Beuther, H. Linz, and T. Henning, (San Francisco: ASP), pp 361-368.

Hall magnetohydrodynamics of partially ionized plasmas.
Pandey, B. P., and Wardle, M. 2008. M.N.R.A.S. 385:2269-2278.

Extended OH(1720 MHz) maser emission from supernova remnants.
Hewitt, J. W., Yusef-Zadeh, F., Wardle, M., and Roberts, D. A. 2008. IAU 242, Astrophysical Masers and Their Environments, eds. J. Chapman and W. Baan (CUP), pp 307-311.

Masers as probes of massive star formation in the nuclear disk.
Yusef-Zadeh, F., Arendt, R. G., Heinke, C. O., Hinz, J. L., Hewitt, J. W., Pratap, P., Ramirez, S. V., Rieke, G. H., Roberts, D. A., Stolovy, S. R., Wardle, M. and Whitney, B. A. 2008. IAU 242, Astrophysical Masers and Their Environments, eds. J. Chapman and W. Baan (CUP), pp 366-373.

A search for OH 6 GHz maser emission towards southern supernova remnants.
McDonnell, K.E., Vaughan, A.E., and Wardle, M. 2008. IAU 242, Astrophysical Masers and Their Environments, eds. J. Chapman and W. Baan (CUP), pp 232-233.

Collisional excitation of OH(6049 MHz) masers in supernova remnant - molecular cloud interactions.
Wardle, M. 2008. IAU 242, Astrophysical Masers and Their Environments, eds. J. Chapman and W. Baan (CUP), pp 336-337.

Radial and vertical angular momentum transport in protostellar disks.
Salmeron, R., Königl, A., and Wardle, M. 2007. Ap. Sp. Sci. 311:81-85.

Magnetic fields in protoplanetary disks.
Wardle, M. 2007. Ap. Sp. Sci. 311:35-45.

The variability of polarized radiation from Sgr A*.
Yusef-Zadeh, F., Wardle, M., Cotton, W. D., Heinke, C. O., and Roberts, D. A. 2007. Ap. J. 668:L47-L50.

ATCA 1.2cm observations of the massive star forming region G305.2+0.2.
Walsh, A. J., Burton, M. G., Chapman, J. F., Wardle, M., and Millar, T. J. 2007. M.N.R.A.S. 380: 1703-1714.

Cosmic-ray heating of molecular gas in the nuclear disk: low star formation efficiency.
Yusef-Zadeh, F., Wardle, M., and Roy, S. 2007. Ap.J. 665: L123-L126.

The origin of diffuse x-ray and gamma ray emission from the Galactic Center region: cosmic ray particles.
Yusef-Zadeh, F., Muno, M., Wardle, M., and Lis, D. C. 2007. Ap. J. 656: 847-869.

Angular momentum transport in protostellar discs.
Salmeron, R., Königl, A., and Wardle, M. 2007. M.N.R.A.S. 375: 177-183.

Flaring activity of Sgr A*: expanding hot blobs.
Yusef-Zadeh, F., Wardle, M., Roberts, D. A., Heinke, C. O., Dowell, C. D., Cotton, W. D., Bower, G. C., and Baganoff, F. K. 2006. IV Microquasar Workshop: Microquasars and Beyond, September 18-22 2006, Como, Italy. Proceedings of Science (MQW6)051: 1-10.

GBT observations of IC 443: the nature of OH(1720 MHz) masers and OH absorption.
Hewitt, J. W., Yusef-Zadeh, F., Wardle, M., Roberts, D. A. and Kassim, N. E. 2006. Ap. J. 652: 1288-1296.

Flaring activity of Sgr A* at 43 and 22 GHz: evidence for expanding hot plasma.
Yusef-Zadeh, F., Roberts, D. A., Wardle, M., Heinke, C. O., and Bower, G. C. 2006. Ap. J. 650: 189-194.

Hall magnetohydrodynamics of weakly-ionized plasma.
Pandey, B. P. and Wardle, M. 2006. preprint (rejected by PRL, the plonkers).

Ion dynamics and the magnetorotational instability in weakly-ionized discs.
Pandey, B. P. and Wardle, M. 2006. M.N.R.A.S. 371: 1014-1024.

Dust grain dynamics in C-type shock waves in molecular clouds.
Chapman, J. F. and Wardle, M. 2006. M.N.R.A.S. 371: 513-529.

A multi-wavelength study of Sgr A*: the role of near-IR flares in the production of X-ray, soft gamma-ray and sub-millimeter emission.
Yusef-Zadeh, F., Bushouse, H., Dowell, C. D., Wardle, M., Roberts, D., Heinke, C., Bower, G. C., Vila Vilaro, B., Shapiro, S., Goldwurm, A., and Belanger, G. 2006. Ap. J. 644: 198-213.

Magnetorotational instability in protostellar discs.
Salmeron, R. and Wardle, M. 2005. M.N.R.A.S. 361: 45-69.

The nature of nonthermal X-ray filaments near the Galactic Center.
Yusef-Zadeh, F., Wardle, M., Muno, M., Law, C., and Pound, M. 2005. Adv. Sp. Res. 35: 1074-1084.

Proper motion of the Irradiated Jet HH 399 in the Trifid Nebula.
Yusef-Zadeh, F., Biretta, J., and Wardle, M. 2005. Ap. J. 624: 246-253.

Multiwavelength observations of the supernova remnant G349.7+02 interacting with a molecular cloud.
Lazendic, J. S., Wardle, M., Whiteoak, J. B., Burton, M. G., and Green, A. J. 2004. preprint.

Early disk evolution.
Wardle, M. 2004. IAU Symp 221, Star Formation at High Angular Resolution, eds. M. G. Burton, R. Jayawardhana & T. L. Bourke (San Francisco:ASP), pp 391-401.

Magnetorotational instability in weakly ionised, stratified accretion discs.
Salmeron, R. and Wardle, M. 2004. Ap. Sp. Sci. 291: 451-456.

Star formation and the Hall effect.
Wardle, M. 2004. Ap. Sp. Sci. 291: 317-323.

Shocked molecular hydrogen towards the Tornado nebula.
Lazendic, J. S., Wardle, M., Burton, M. G., Yusef-Zadeh, F., Green, A. J., and Whiteoak, J. B. 2004. M.N.R.A.S. 354: 393-400.

The Eye of the Tornado - an isolated, high mass young stellar object near the Galactic Centre.
Burton,M. G., Lazendic, J. S., Yusef-Zadeh, F. and Wardle, M. 2004. M.N.R.A.S. 348: 638-646.

Molecular line observations of the Tornado Nebula and its Eye.
Lazendic, J., Burton, M., Yusef-Zadeh, F., Wardle, M., Green, A. and Whiteoak, J. 2003. Astron. Nach. 324 S1: 157-160.

Magnetorotational instability in weakly ionised, stratified accretion discs.
Salmeron, R. and Wardle, M. 2003. M.N.R.A.S. 345:992-1008.

Nonthermal emission from the Arches Cluster (G0.121+0.017) and the origin of gamma-ray emission from 3EG J1746-2851.
Yusef-Zadeh, F., Nord, M., Wardle, M., Law, C., Lang, C., and Lazio, T. J. W. 2003. Ap. J. Letters 590:103-106.

OH (1720 MHz) masers and mixed-morphology supernova remnants.
Yusef-Zadeh, F., Wardle, M., Rho, J., and Sakano, M. 2003. Ap. J. 585:319-323.

Thermal OH (1667/65 MHz) absorption and nonthermal OH (1720 MHz) emission towards the W28 supernova remnant.
Yusef-Zadeh, F., Wardle, M., and Roberts, D. A. 2003. Ap. J. 583:267-271.

Supernova OH (1720 MHz) masers in Sgr A East, W28 and G359.1-0.5.
Yusef-Zadeh, F., Roberts, D. A., Bower, G., Wardle, M., and Goss, W. M. 2002. IAU Symp 206, Cosmic Masers: From Proto-Stars to Black Holes, eds V. Mineese and M. Reid (San Francisco:ASP), pp 212-216.

Supernova remnant OH masers: signposts of cosmic collision.
Wardle, M., and Yusef-Zadeh, F. 2002. Science 296:2350-2354.   pdf reprint

Molecular diagnostics of supernova remnant shocks.
Lazendic, J.S., Wardle, M., Green, A., Whiteoak, J.B. and Burton, M.G. 2002. Neutron Stars in Supernova Remnants, eds P.O. Slane and B.M. Gaensler (San Francisco:ASP), p.399-402.

Detection of X-ray emission from the Arches Cluster near the Galactic Center.
Yusef-Zadeh, F., Law, C., Wardle, M., Wang, Q. D., Fruscione, A., Lang, C. C. and Cotera, A. 2002. Ap. J. 570:665-670.

Shocked molecular gas towards the SNR G359.1-0.5 and the Snake.
Lazendic, J. S., Wardle, M., Burton, M. G., Yusef-Zadeh, F., Whiteoak, J. B., Green, A. J. and Ashley, M. C. B. 2002. M.N.R.A.S. 331:537-544.

The origin of X-ray emission from a Galactic Center molecular cloud: low-energy cosmic-ray electrons.
Yusef-Zadeh, F., Law, C. and Wardle, M. 2002. Ap. J. 568:L121-L125.

High spectral and spatial resolution observations of shocked molecular hydrogen at the Galactic Center.
Yusef-Zadeh, F., Stolovy, S. R., Burton, M., Wardle, and Ashley, M. C. B. 2001. Ap. J. 560:749-762.

Radio continuum emission from the central stars of M20 and the detection of a new supernova remnant near M20.
Yusef-Zadeh, F., Shure, M., Wardle, M. and Kassim, N. 2000. Ap. J. 540:842-850.

Supernova remnants, pulsars and the interstellar medium - summary of a workshop held at U Sydney, March 1999.
Dwarkadas, V., Ball, L., Caswell, J., Green, A., Johnston, S., Schmidt, B., and Wardle, M. 2000. P.A.S.A. 17:83-91.

The Galactic Center: An interacting system of unusual sources.
Yusef-Zadeh, F., Melia, F., and Wardle, M. 2000. Science 287: 85-91.   pdf reprint

The cloudy Universe.
Walker, M and Wardle, M. 1999. P.A.S.A. 16: 262-272.   pdf reprint

Thermal stability of cold clouds in galaxy halos.
Wardle, M. and Walker, M. 1999. Ap. J. 527:L109-L112.

Enhanced OH in C-type shock waves in molecular clouds.
Wardle, M. 1999. Ap. J. 525:L101-L104.

The interaction of two prominent Galactic Center sources: Sgr A East and the molecular ring.
Yusef-Zadeh, F., Stolovy, S., Burton, M.,Wardle, M., Melia, F., Lazio, J., Kassim, N. and Roberts, D. A. 1999. The Central Parsecs of the Galaxy, eds. H. Falcke, A. Cotera, W. Duschl, F. Melia and M. Rieke, (Astronomical Society of the Pacific: San Francisco), pp 197-213.

OH(1720 MHz) masers at the Galactic Centre.
Wardle, M., Yusef-Zadeh, F., and Geballe, T. R. 1999. The Central Parsecs of the Galaxy, eds. H. Falcke, A. Cotera, W. Duschl, F. Melia and M. Rieke (Astronomical Society of the Pacific: San Francisco), pp 432-440.

The Balbus-Hawley instability in weakly ionised discs.
Wardle, M. 1999. M.N.R.A.S. 307:849-856.

High velocity gas from the Galactic dark halo.
Walker, M., and Wardle, M. 1999. The Stromlo Workshop on High Velocity Clouds, ed. B.K. Gibson and M.E. Putnam, (Astronomical Society of the Pacific: San Francisco), pp 269-275.

The conductivity of dense molecular gas.
Wardle, M., and Ng, C. 1999. M.N.R.A.S. 303:239-246.

A model for OH 1720 MHz masers associated with supernova remnants, and an application to Sgr A East.
Wardle, M., Yusef-Zadeh, F., and Geballe, T. R. 1998. preprint.

Dust grains and the structure of C-type magnetohydrodynamic shock waves in molecular clouds.
Wardle, M. 1998. M.N.R.A.S. 298:507-524

Extreme scattering events and Galactic dark matter.
Walker, M., and Wardle, M. 1998. Ap. J. 498: L125-L128

Anomalous motion of ionized gas in the Sickle (G0.18-0.04) near the Galactic Center.
Yusef-Zadeh, F., Roberts, D. A., and Wardle, M. 1997. Ap. J. 490: L83-L86

Magnetically-driven winds from protostellar disks.
Wardle, M. 1997. Proc. IAU Colloq. 163, Accretion Phenomena and Related Outflows, ed. D. Wickramasinghe, L. Ferrario and G. Bicknell, (Astronomical Society of the Pacific: San Francisco), 561-565.

The nature of the Faraday screen toward the Galactic Center nonthermal filament G359.54+0.18.
Yusef-Zadeh, F., Wardle, M., and Parastaran, P. 1997. Ap. J. 475:L119-L122.

Detection of ionized gas toward an OH/IR star: a measure of the ionizing radiation field near the Galactic Center.
Yusef-Zadeh, F., Wardle, M., and Roberts, D. 1996. Ap. J. 458: L21-L23.

A comment on the stability of magnetic wind-driving accretion disks.
Königl, A. and Wardle, M. 1996. M.N.R.A.S. 279: L61-L64.

A measure of the ionizing radiation field near the Galactic Center.
Yusef-Zadeh, F., Roberts, D., Wardle, M. and Lee, H. 1996. Radio Emission from the Stars and the Sun, ed. A. R. Taylor and J. M. Paredes, (Astronomical Society of the Pacific: San Francisco), 65-67.

The nature of the scattering and Faraday screens towards the Galactic Center.
Yusef-Zadeh, F., Parastaran, P., Wardle, M. and Uchida, K. 1996. Proc. IAU Colloq. 169, Unsolved Problems of the Milky Way, ed. L. Blitz and P. Teuben, (Kluwer: Dordrecht), 271-277.

Incorporation of ambipolar diffusion into the ZEUS magnetohydrodynamics code.
MacLow, M.-M., Norman, M. L., Königl, A., and Wardle, M. 1995. Ap. J. 442: 726-735.

Anisotropy in the angular broadening of Sagittarius A* at the Galactic Center.
Yusef-Zadeh, F., Cotton, W., Wardle, M., Melia, F., and Roberts, D. A. 1994. Ap. J. 434: L63-L66.

The structure of protostellar accretion disks and the origin of bipolar flows.
Wardle, M., and Königl, A. 1993. Ap. J. 410: 218-238.

Evidence for the interaction of the IRS 16 wind with the ionized and molecular gas at the Galactic Center.
Yusef-Zadeh, F., and Wardle, M. 1993. Ap. J. 405: 584-590.

A coherent picture of the innermost parsec of the Galaxy.
Yusef-Zadeh, F. and Wardle, M. 1992. The Center, Bulge, and Disk of the Milky Way, ed. L. Blitz (Dordrecht: Kluwer), 1-22.

Origin of the hot gas and radio blobs at the Galactic Center.
Wardle, M., and Yusef-Zadeh, F. 1992. Nature 357: 308-310.

Gravitational lensing by a massive black hole at the Galactic Center.
Wardle, M. and Yusef-Zadeh, F. 1992. Ap. J. 287: L65-L68.

Instability in oblique C-type shocks.
Wardle M. 1991. M.N.R.A.S. 251: 119-127.

Instability in radiative C-type shock waves.
Wardle M. 1991. M.N.R.A.S. 250:523-530.

A model for the magnetic field in the molecular disk at the Galactic Center.
Wardle, M., and Königl, A. 1990. Ap. J. 362: 120-134.

The stability of magnetohydrodynamic shock waves in molecular clouds.
Wardle, M. 1990. M.N.R.A.S. 236: 98-109.

A technique for detecting massive collapsed objects in the dark halo of the Galaxy.
Turner, E. L., Wardle, M., and Schneider, D. P. 1990. A. J. 100: 146-155.

Oblique magnetohydrodynamic shock waves in molecular clouds.
Wardle, M. and Draine, B. T. 1987. Ap. J. 321: 321-333.

The statistical distribution of the neutral-hydrogen content of S0 galaxies.
Wardle, M. and Knapp, G. R. 1986. A. J. 91: 23-48.

Theses

Secondary antiprotons in the cosmic radiation.
Wardle, M. 1984. MSc Thesis, University of Auckland.