Academic literature on the topic 'Galaxias 'southern''

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Journal articles on the topic "Galaxias 'southern'"

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Kaulfuss, Uwe, Daphne E. Lee, Jeffrey H. Robinson, Graham P. Wallis, and Werner W. Schwarzhans. "A Review of Galaxias (Galaxiidae) Fossils from the Southern Hemisphere." Diversity 12, no. 5 (May 25, 2020): 208. http://dx.doi.org/10.3390/d12050208.

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The Galaxiidae is a Southern Hemisphere family of freshwater fish, considered to be of Gondwanan origin based on the current distribution of species in New Zealand, Australia (including Tasmania), New Caledonia, Africa, South America, and on some associated and subantarctic islands. The fossil record of galaxiids is extremely sparse and geographically restricted. The only galaxiid fossils currently known come from several Miocene lakes in southern New Zealand. They include more than 100 articulated fishes, some remarkably preserving soft parts such as eyes and skin, skulls and jaw components,
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Zama, Akira. "Some biological observations on the galaxiid fish,Galaxias platei, collected in southern Chile." Japanese Journal of Ichthyology 32, no. 4 (December 1986): 450–53. http://dx.doi.org/10.1007/bf02905426.

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Victoriano, P. F., C. P. Muñoz-Ramírez, C. B. Canales-Aguirre, A. Jara, I. Vera-Escalona, T. Burgos-Careaga, C. Muñoz-Mendoza, and E. M. Habit. "Contrasting evolutionary responses in two co-distributed species of Galaxias (Pisces, Galaxiidae) in a river from the glaciated range in Southern Chile." Royal Society Open Science 7, no. 7 (July 2020): 200632. http://dx.doi.org/10.1098/rsos.200632.

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Life-history traits are among the most important factors affecting population abundance and genetic diversity of species. Here, we analysed the genetic patterns of two Galaxias species with different life-history traits to investigate how these biological differences impacted their evolution in the Valdivia River basin, Southern Chile. We analysed mitochondrial DNA (mtDNA) sequences from 225 individuals of Galaxias maculatus and 136 of G. platei to compare patterns of genetic diversity, structure and demographic growth across the basin. Galaxias maculatus presented higher genetic diversity and
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Andrews, AP. "A new species of Galaxias (Pisces: Galaxiidae) from southern Tasmania." Papers and Proceedings of The Royal Society of Tasmania 119 (1985): 55–60. http://dx.doi.org/10.26749/rstpp.119.55.

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Vera-Escalona, Ivan, Livia E. Anthes, Ian G. Paterson, and Daniel E. Ruzzante. "Seventeen novel microsatellite markers for the southern hemisphere fish Galaxias maculatus." Conservation Genetics Resources 6, no. 4 (June 10, 2014): 925–27. http://dx.doi.org/10.1007/s12686-014-0242-4.

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Paterson, Rachel A., Gustavo P. Viozzi, Carlos A. Rauque, Verónica R. Flores, and Robert Poulin. "A Global Assessment of Parasite Diversity in Galaxiid Fishes." Diversity 13, no. 1 (January 14, 2021): 27. http://dx.doi.org/10.3390/d13010027.

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Free-living species often receive greater conservation attention than the parasites they support, with parasite conservation often being hindered by a lack of parasite biodiversity knowledge. This study aimed to determine the current state of knowledge regarding parasites of the Southern Hemisphere freshwater fish family Galaxiidae, in order to identify knowledge gaps to focus future research attention. Specifically, we assessed how galaxiid–parasite knowledge differs among geographic regions in relation to research effort (i.e., number of studies or fish individuals examined, extent of tissue
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Berra, TM, LELM Crowley, W. Ivantsoff, and PA Fuerst. "Galaxias maculatus: An explanation of its biogeography." Marine and Freshwater Research 47, no. 6 (1996): 845. http://dx.doi.org/10.1071/mf9960845.

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Galaxias maculatus is a small diadromous fish found in Australia, New Zealand, South America and on some oceanic islands. Two hypotheses have been advanced to explain this widespread, disjunct distribution. McDowall promoted dispersal through the sea of salt-tolerant juveniles but Rosen and others claimed that the distribution reflected the break-up of Gondwana and subsequent drift of the southern continents. Allozyrne electrophoresis of muscle extracts of specimens of Galaxias maculatus from eastern and western Australia, New Zealand and Chile was used to test the hypothesis that populations
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M. Driessen, Michael, and Stephen A. Mallick. "The vertebrate fauna of the Tasmanian Wilderness World Heritage Area." Pacific Conservation Biology 9, no. 3 (2003): 187. http://dx.doi.org/10.1071/pc030187.

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The Tasmanian Wilderness World Heritage Area encompasses an area of 1.38 million hectares, or approximately 20% of the island state of Tasmania. The World Heritage Area plays a significant role in the conservation of Tasmania's fauna and natural biological processes. The area supports 30 species of terrestrial mammal including three endemic species (91% of total Tasmanian species), 120 species of terrestrial bird including 10 endemic species (76% of state total), 14 species of terrestrial reptile including seven endemic species (67% of state total), seven species of frog including three endemi
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Revenga, Jorge E., Patricio F. Torres, and Ines Siegmund. "Acanthostomoides apophalliformis (Trematoda: Cryptogonimidae) does not cause detectable mortality in Galaxias maculatus (Teleostomi: Galaxiidae)." Brazilian Archives of Biology and Technology 49, no. 5 (September 2006): 713–15. http://dx.doi.org/10.1590/s1516-89132006000600004.

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The present study was conducted to determine if parasite induced mortality existed in a "puyen" population in Moreno Lake, southern Argentina. Data on both parasite abundance and degree of aggregation of parasite frequency distribution showed the absence of fish mortality induced by A. apophalliformis.
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Doughty, PAUL, MITZY PEPPER, and J. SCOTT KEOGH. "Morphological and molecular assessment of the Diplodactylus savagei species complex in the Pilbara region, Western Australia, with a description of a new species." Zootaxa 2393, no. 1 (March 9, 2010): 33. http://dx.doi.org/10.11646/zootaxa.2393.1.3.

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The gecko Diplodactylus savagei is restricted to the rocky Pilbara and Ashburton regions of Western Australia. Recent collections have enabled a reappraisal of morphological and genetic diversity within the taxon. Analysis of 1200 base pairs of the mtDNA gene ND2 and surrounding tRNA found strong support for three lineages within D. savagei: an eastern clade (which includes the type location of D. savagei from Marble Bar), a southern clade and a north-central clade. The eastern and southern clades did not differ in morphology or dorsal pattern. Although there are several subtle differences in
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Dissertations / Theses on the topic "Galaxias 'southern'"

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Crow, Shannan Kyle, and n/a. "Evolutionary ecology of non-diadromous galaxiid fishes (Galaxias gollumoides and G. �southern�) in Southern New Zealand." University of Otago. Department of Zoology, 2008. http://adt.otago.ac.nz./public/adt-NZDU20081124.095647.

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Coexisting species are interesting from evolutionary and ecological perspectives. Sympatry can provide insights into mechanisms that allow stable long-term coexistence, such as niche partitioning, character displacement, interspecific competition and species boundaries. In New Zealand streams, a flock of closely related non-migratory galaxiid fishes exist throughout eastern South Island (Galaxias vulgaris sensu lato). These fishes are largely parapatric, but recent studies have found streams that contain coexisting populations of two newly discovered galaxiids (Galaxias �southern� and G. gollu
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Hviding, Raphael E., Ryan C. Hickox, Kevin N. Hainline, Christopher M. Carroll, Michael A. DiPompeo, Wei Yan, and Mackenzie L. Jones. "Characterizing the WISE-selected heavily obscured quasar population with optical spectroscopy from the Southern African Large Telescope." OXFORD UNIV PRESS, 2018. http://hdl.handle.net/10150/627140.

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We present the results of an optical spectroscopic survey of 46 heavily obscured quasar candidates. Objects are selected using their mid-infrared (mid-IR) colours and magnitudes from the Wide-Field Infrared Survey Explorer (WISE) anzd their optical magnitudes from the Sloan Digital Sky Survey. Candidate Active Galactic Nuclei (AGNs) are selected to have mid-IR colours indicative of quasar activity and lie in a region of mid-IR colour space outside previously published X-ray based selection regions. We obtain optical spectra for our sample using the Robert Stobie Spectrograph on the Southern Af
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Ramphul, Rajin Anand. "Characterising star forming and luminous infrared galaxies with the Southern African Large Telescope (SALT)." Thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/28380.

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Context: Stellar population modelling is a popular technique that has been extensively applied to main sequence galaxies. Yet starburst galaxies and Luminous InfraRed Galaxies (LIRGs) have, so far, not been studied as much using the method. LIRGs in the local universe are known to be highly interacting galaxies with strong star formation in obscured environments. Still, LIRGs also have diversity in terms of morphology and mode and location of star formation. Aim: This thesis investigates the stellar population properties of a group of 52 starbursts and luminous infrared galaxies (LIRGs) in the
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Sorgho, Amidou. "Observing galaxies in the Southern Filament of the Virgo Cluster with KAT-7 and WSRT." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/16495.

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To date, our understanding of the formation and evolution of galaxies attributes a very important role to the neutral hydrogen (HI) gas since it constitutes the reservoir of fuel out of which galaxies form stars. In their evolution, galaxies interact with each other and with their environment, and very often these interactions leave fingerprints in the HI distribution. The extended HI envelopes of galaxies are sensitive tracers of those tidal interactions. In the present study, we map the HI distribution of galaxies in a ~1.5° X 2.5° region of the Virgo cluster using the Karoo Array Telescope
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Johnston-Hollitt, Melanie. "Detection of magnetic fields and diffuse radio emission in Abell 3667 and other rich southern clusters of galaxies / Melanie Johnston-Hollitt." 2003. http://hdl.handle.net/2440/21954.

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"July 2003."<br>Bibliography: p. 203-211.<br>xxii, 211 p. : ill. (some col.) ; 30 cm.<br>Title page, contents and abstract only. The complete thesis in print form is available from the University Library.<br>Investigates properties of magnetic fields in galaxy clusters via both statistical Faraday rotation measures and diffuse source polarimetry, and investigates the nature and generation mechanisms for diffuse radio emission in the ACO cluster A3667.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Physics and Mathematical Physics, 2003
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Basu, Sayan. "VLBI Imaging of ICRF Sources in the Southern Hemisphere using Geodetic and Astrometric Observations." Thesis, 2020. http://hdl.handle.net/10500/26553.

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The present International Celestial Reference Frame (ICRF), the ICRF-3 is based on a catalogue of 4536 quasar positions obtained from Very Long Baseline Interferometry (VLBI) radio measurements. This radio frame is crucial for many applications, from measurements of Earth’s orientation in space to spacecraft navigation and measurements of sea-level rise. However, the deficit in ICRF source density in the South and lack of dedicated imaging campaigns in the South, to monitor structural changes, remain a big concern. These ICRF sources can exhibit spatially extended emission structures tha
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Books on the topic "Galaxias 'southern'"

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O'Meara, Stephen James. Southern gems. Cambridge: Cambridge University Press, 2012.

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Arp, Halton C. A catalogue of southern peculiar galaxies and associations. Cambridge: Cambridge University Press, 1987.

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Corwin, Harold G. Southern galaxy catalogue: A catalogue of 5481 galaxies south of declination -17 degrees found on 1.2-m U.K. Schmidt IIIa-J plates. Austin: Dept. of Astronomy, University of Texas at Austin, 1985.

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Arp, Halton C., and Barry F. Madore. Catalogue of Southern Peculiar Galaxies and Associations. University of Cambridge ESOL Examinations, 1987.

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Arp, Halton C., and Barry F. Madore. A Catalogue of Southern Peculiar Galaxies and Associations. Cambridge Univ Pr (Sd), 2007.

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author, Christensen Lars Lindberg, and Malin David 1941 author, eds. Treasures of the southern sky. 2011.

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Auke, Slotegraaf, ed. Pearls of the southern skies: A journey to exotic star clusters, nebulae and galaxies. 2014.

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F, Garzón, ed. The impact of large scale near-IR sky surveys: Proceedings of a workshop held at Puerto de la Cruz, Tenerife (Spain), 22-26 April 1996. Dordrecht: Kluwer Academic Publishers, 1997.

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Bender, R. The Mass of Galaxies at Low and High Redshift: Proceedings of the European Southern Observatory and Universitats-Sternwarte Munchen Workshop Held in ... October 2001. Springer, 2010.

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(Editor), Ralf Bender, and Alvio Renzini (Editor), eds. The Mass of Galaxies at Low and High Redshift: Proceedings of the European Southern Observatory and Universitäts-Sternwarte München Workshop Held in Venice, ... October 2001 (ESO Astrophysics Symposia). Springer, 2003.

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Book chapters on the topic "Galaxias 'southern'"

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Lausten, Svend, Claus Madsen, and Richard M. West. "The Universe and its Galaxies." In Exploring the Southern Sky, 5–116. Berlin, Heidelberg: Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-61588-7_3.

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Mitra, Shyamal. "A Study of the Southern Supercluster." In The World of Galaxies, 426–27. New York, NY: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4613-9356-6_65.

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Malin, David, and Brian Hadley. "Deep Images of Bright Galaxies." In Looking Deep in the Southern Sky, 78–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-540-49460-7_15.

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van Breugel, Wil, Carlos De Breuck, Huub Röttgering, George Miley, and Adam Stanford. "Very High Redshift Radio Galaxies." In Looking Deep in the Southern Sky, 236–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-540-49460-7_44.

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Molinari, E., A. Moretti, G. Chincarini, and S. De Grandi. "Luminosity Function of Cluster Galaxies." In Looking Deep in the Southern Sky, 322–23. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-540-49460-7_62.

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Collins, C. A., N. H. Heydon-Dumbleton, and H. T. MacGillivray. "The Edinburgh/Durham Southern Sky Galaxy Survey." In The World of Galaxies, 21–24. New York, NY: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4613-9356-6_4.

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Hainaut, O. R., and B. J. Jarvis. "Bright Cores in Nearby Southern Galaxies." In Morphological and Physical Classification of Galaxies, 381–84. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2522-2_32.

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Charlot, Stéphane. "Spectro-Photometric Constraints on Distant Galaxies." In Looking Deep in the Southern Sky, 294–300. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-540-49460-7_55.

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Freudling, Wolfram. "Surveys of Peculiar Velocities of Galaxies." In Looking Deep in the Southern Sky, 29–33. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-540-49460-7_6.

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Fernández-Soto, Alberto, Kenneth M. Lanzetta, and Amos Yahil. "High-Redshift Galaxies: The HDF and More." In Looking Deep in the Southern Sky, 270–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-540-49460-7_50.

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Conference papers on the topic "Galaxias 'southern'"

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Prokhorov, Dmitry. "VHE gamma-ray emission from radio galaxies." In High Energy Astrophysics in Southern Africa. Trieste, Italy: Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.338.0010.

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Winkler, Hartmut. "The intrinsic nuclear luminosities of a new sample of medium-distance Seyfert galaxies." In High Energy Astrophysics in Southern Africa. Trieste, Italy: Sissa Medialab, 2019. http://dx.doi.org/10.22323/1.338.0015.

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Mhlahlo, Nceba, Loic Guennou, and Luigina Feretti. "Shock Acceleration in the Cluster of Galaxies ACO2163." In 4th Annual Conference on High Energy Astrophysics in Southern Africa. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.275.0013.

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Rodrigues, Davi C., Paulo L. C. de Oliveira, Júlio C. Fabris, and Ilya L. Shapiro. "Disk and elliptical galaxies within renormalization group improved gravity." In I COSMOSUL: COSMOLOGY AND GRAVITATION IN THE SOUTHERN CONE. AIP, 2012. http://dx.doi.org/10.1063/1.4756820.

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Chen, Andrew, Nebiha Shafi, and Sergio Colafrancesco. "Prospects for very high energy observations of Starburst/Seyfert galaxies." In 4th Annual Conference on High Energy Astrophysics in Southern Africa. Trieste, Italy: Sissa Medialab, 2017. http://dx.doi.org/10.22323/1.275.0018.

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Motha, Nomthendeleko, and Soebur Razzaque. "Modelling of synchrotron emission from galaxies and extragalactic radio background." In 7th Annual Conference on High Energy Astrophysics in Southern Africa. Trieste, Italy: Sissa Medialab, 2020. http://dx.doi.org/10.22323/1.371.0014.

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Surcis, Gabriele, Andrea Tarchi, Christian Henkel, Juergen Ott, Jim Lovell, and Paola Castangia. "Water masers in Southern FIR-bright galaxies: detection and interferometric follow-ups." In The 9th European VLBI Network Symposium on The role of VLBI in the Golden Age for Radio Astronomy and EVN Users Meeting. Trieste, Italy: Sissa Medialab, 2009. http://dx.doi.org/10.22323/1.072.0109.

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Chen, Sina, M. Berton, G. La Mura, E. Congiu, V. Cracco, L. Foschini, J. H. Fan, S. Ciroi, P. Rafanelli, and D. Bastieri. "A catalog of narrow-line Seyfert 1 galaxies in the southern hemisphere." In Revisiting narrow-line Seyfert 1 galaxies and their place in the Universe. Trieste, Italy: Sissa Medialab, 2018. http://dx.doi.org/10.22323/1.328.0004.

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Ratsimbazafy, Ando, Catherine Cress, Steve Crawford, and Mathew Smith. "Age dating Luminous Red Galaxies observed with the Southern African Large Telescope." In SALT Science Conference 2015. Trieste, Italy: Sissa Medialab, 2016. http://dx.doi.org/10.22323/1.250.0019.

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Makope, Daymore Tapiwa Munyaradzi, Hartmut Winkler, and Francois van Wyk. "The optical and X-ray properties of a sample of Seyfert galaxies that have undergone significant spectral change." In 7th Annual Conference on High Energy Astrophysics in Southern Africa. Trieste, Italy: Sissa Medialab, 2020. http://dx.doi.org/10.22323/1.371.0030.

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