Browsing by Author Johnston, Helen

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Issue DateTitleAuthor(s)Citation
2002The 1998 Outburst of the XTE J1550-564: A model based on multiwavelength observationsCampbell-Wilson, Duncan; Hunstead, Richard; Johnston, Helen; McIntyre, Vincent; Wu, Kin; Hannikainen, D C; Harmon, B; McCollough, M; Soria, R; Physics; Physics; Physics; Physics; PhysicsThe 1998 Outburst of the XTE J1550-564: A model based on multiwavelength observations, The Astrophysical Journal: an international review of astronomy and astronomical physics, vol.565,(2),2002,pp 1161-1168
2012ATLBS extended source sample: The evolution in radio source morphology with flux densityHunstead, Richard; Johnston, Helen; Sadler, Elaine; Ekers, R.D; Saripalli, Lakshmi; Subrahmanyan, Ravi; Thorat, Kshitij; Physics; Physics; PhysicsATLBS extended source sample: The evolution in radio source morphology with flux density, The Astrophysical Journal Supplement Series, vol.199, 2, 2012,pp 1-13
2008The clustering of radio galaxies at z ≃ 0.55 from the 2SLAQ LRG surveyCroom, Scott; Johnston, Helen; Sadler, Elaine; Wake, David; Physics; Physics; PhysicsThe clustering of radio galaxies at z ≃ 0.55 from the 2SLAQ LRG survey, Monthly Notices Royal Astronomical Society, vol.391, N/A, 2008,pp 1674-1684
2015Defying jet-gas alignment in two radio galaxies at z ∼ 2 with extended light profiles: Similarities to brightest cluster galaxiesBryant, Julia; Hunstead, Richard; Johnston, Helen; Best, Philip; Collet, C; de Breuck, C.; Dicken, Daniel; Lehnert, Matthew; Nesvadba, Nicole; Wylezalek, D.; Physics; Physics; PhysicsDefying jet-gas alignment in two radio galaxies at z ∼ 2 with extended light profiles: Similarities to brightest cluster galaxies, Astronomy and Astrophysics (A and A), vol.579, N/A, 2015,pp 1-17
2010The extraordinary radio galaxy MRC B1221-423: Probing deeper at radio and optical wavelengthsBroderick, Jess; Hunstead, Richard; Johnston, Helen; Cotter, Garret; Morganti, Raffaella; Physics; Physics; PhysicsThe extraordinary radio galaxy MRC B1221-423: Probing deeper at radio and optical wavelengths, Monthly Notices of the Royal Astronomical Society, vol.407, 2, 2010,pp 721-733
2017Further observational evidence for a critical ionizing luminosity in active galaxiesHunstead, Richard; Johnston, Helen; Sadler, Elaine; Allison, J R; Bignell, C; Curran, S.; Whiting, M; Physics; Physics; PhysicsFurther observational evidence for a critical ionizing luminosity in active galaxies, Monthly Notices of the Royal Astronomical Society, vol.470, 4, 2017,pp 4600-4607
2013Galactic interaction as the trigger for the young radio galaxy MRC B1221-423Anderson, CRAIG STUART; Hunstead, Richard; Johnston, Helen; Physics; Physics; PhysicsGalactic interaction as the trigger for the young radio galaxy MRC B1221-423, Monthly Notices of the Royal Astronomical Society, vol.431, 4, 2013,pp 3269-3281
2017Galaxy And Mass Assembly (GAMA): the environments of high- and low-excitation radio galaxiesBland-Hawthorn, Jonathan (Joss); Ching, John; Croom, Scott; Johnston, Helen; Pracy, Michael; Sadler, Elaine; Baldry, I K; Brough, Sarah; Colless, Matthew; Driver, S P; et al, Various; Holwerda, B; Hopkins, A M; Jarvis, M J; Kelvin, L S; Robotham, Aaron; Physics; Physics; Physics; Physics; Physics; PhysicsGalaxy And Mass Assembly (GAMA): the environments of high- and low-excitation radio galaxies, Monthly Notices of the Royal Astronomical Society, vol.469, 4, 2017,pp 4584-4599
2011The (gamma)-ray binary LS 5039: mass and orbit constraints from MOST observationsJohnston, Helen; Kiss, Laszlo; Wu, Kin; Ashley, M C B; Guenther, David B.; Huziak, Richard; Kuschnig, R; Matthews, Jaymie M.; Moffat, A; Phillips, A.; Rucinski, S; Sarty, Gordon; Sasselov, Dimitar; Szalai, T; Weiss, Werner W.; Physics; Physics; PhysicsThe (gamma)-ray binary LS 5039: mass and orbit constraints from MOST observations, Monthly Notices of the Royal Astronomical Society, vol.411, 2, 2011,pp 1293-1300
2014How Accurate are SuperCOSMOS Positions?Hunstead, Richard; Johnston, Helen; Schaefer, Adam; Physics; Physics; PhysicsHow Accurate are SuperCOSMOS Positions?, Publications Astronomical Society of Australia (Print), vol.31, 1, 2014,pp 1-6
2015How online learning modules can improve the representational fluency and conceptual understanding of university physics studentsHill, Matthew; Johnston, Helen; Sharma, Manjula; Physics; Physics; PhysicsHow online learning modules can improve the representational fluency and conceptual understanding of university physics students, European Journal of Physics, vol.36, 4, 2015,pp 1-20
2003Interstellar scintillation and annual cycles in the BL Lac source PKS 1519-273Johnston, Helen; Bignall, H; Jauncey, D; Kedzioa-Chudczer, Lucyna; Lovell, J.E.J; Macquart, J P; Tzioumis, A; PhysicsInterstellar scintillation and annual cycles in the BL Lac source PKS 1519-273, Astrophysics and Space Science, vol.288,(1-2),2003,pp 63-68
2016Kinematic signatures of AGN feedback in moderately powerful radio galaxies at z ? 2 observed with SINFONIBryant, Julia; Hunstead, Richard; Johnston, Helen; Best, Philip; Collet, C; de Breuck, C.; Dicken, Daniel; Lehnert, Matthew; Nesvadba, Nicole; Physics; Physics; PhysicsKinematic signatures of AGN feedback in moderately powerful radio galaxies at z ? 2 observed with SINFONI, Astronomy and Astrophysics, vol.586, N/A, 2016,pp 1-28
2017The Large Area Radio Galaxy Evolution Spectroscopic Survey (LARGESS): Survey design, data catalogue and GAMA/WiggleZ spectroscopyChing, John; Croom, Scott; Johnston, Helen; Pracy, Michael; Sadler, Elaine; Couch, Warrick; Hopkins, Andrew; Jurek, Russell; Pimbblet, K A; Physics; Physics; Physics; Physics; PhysicsThe Large Area Radio Galaxy Evolution Spectroscopic Survey (LARGESS): Survey design, data catalogue and GAMA/WiggleZ spectroscopy, Monthly Notices of the Royal Astronomical Society, vol.464, 2, 2017,pp 1306-1332
2005MRC B1221-423: a compact steep-spectrum radio source in a merging galaxyHunstead, Richard; Johnston, Helen; Sadler, Elaine; Cotter, Garret; Physics; Physics; PhysicsMRC B1221-423: a compact steep-spectrum radio source in a merging galaxy, Royal Astronomical Society. Monthly Notices, vol.356,(2),2005,pp 515-523
2016The nature of the companion star in Circinus X-1Gibson, Joel; Johnston, Helen; Soria, R; Schl Information Technologies; PhysicsThe nature of the companion star in Circinus X-1, Monthly Notices of the Royal Astronomical Society, vol.456, 1, 2016,pp 347-355
2009A new search for distant radio galaxies in the Southern hemisphere - II. 2.2m imaging*Broderick, Jess; Bryant, Julia; Gaensler, Bryan; Hunstead, Richard; Johnston, Helen; De Breuck, Carlos; Physics; Physics; Physics; Physics; PhysicsA new search for distant radio galaxies in the Southern hemisphere - II. 2.2m imaging*, Monthly Notices Royal Astronomical Society, vol.394, 4, 2009,pp 2197-2222
2009A new search for distant radio galaxies in the Southern hemisphere - III. Optical spectroscopy and analysis of the MRCR - SUMSS sampleBroderick, Jess; Bryant, Julia; Gaensler, Bryan; Hunstead, Richard; Johnston, Helen; De Breuck, Carlos; Physics; Physics; Physics; Physics; PhysicsA new search for distant radio galaxies in the Southern hemisphere - III. Optical spectroscopy and analysis of the MRCR - SUMSS sample, Monthly Notices Royal Astronomical Society, vol.395, 2, 2009,pp 1099-1120
2011Optical properties of high-frequency radio sources from the Australia Telescope 20 GHz (AT20G) SurveyBannister, Keith; Croom, Scott; Hancock, Paul; Johnston, Helen; Mahony, Elizabeth; Murphy, Tara; Sadler, Elaine; Chhetri, Rajan; Ekers, Ronald D.; Massardi, Marcela; Physics; Physics; Physics; Physics; Physics; Physics; PhysicsOptical properties of high-frequency radio sources from the Australia Telescope 20 GHz (AT20G) Survey, Monthly Notices of the Royal Astronomical Society, vol.417, 4, 2011,pp 2651-2675
2013Optical spectra of candidate international celestial reference frame (ICRF) flat-spectrum radio sourcesHunstead, Richard; Johnston, Helen; Boldycheva, A.; Jauncey, D; Maslennikov, K.; Pursimo, T; Stanford, L.M.; Titov, Oleg; Physics; PhysicsOptical spectra of candidate international celestial reference frame (ICRF) flat-spectrum radio sources, The Astronomical Journal, vol.146, 1, 2013,pp 1-10