Dr Khaled Said Soliman
Research Fellow
School of Mathematics and Physics
+61 7 336 53134
Physics Annexe (06), Room 410
Researcher biography
My main research interests are in observational cosmology, Large Scale Structure, and galaxy formation and evolution. I am currently working mainly on the most fundamental questions about the universe such as: What is the present-day expansion rate of the universe (the Hubble constant)? Why the universe is dominated by dark energy? What is the implicit distribution of dark matter in the universe? Why Einstein's general theory of relativity breaks down on some cosmological scales?
I am a member of DESI, Taipan, WALLABY, 4HS galaxy surveys.
In 2017 I was named the 2017 winner of the IAU and Gruber Foundation Fellowship after receiving my PhD from the University of Cape Town with THREE A's on my PhD examiners reports. This additional grant of 50,000 USD is awarded annually to an extremely promising, young astrophysicist to promote the science of cosmology.
Personal website here
Book Chapter
Said, Khaled (2024). Tully–Fisher relation. The Hubble constant tension. (pp. 219-233) Singapore, Singapore: Springer Nature Singapore. doi: 10.1007/978-981-99-0177-7_12
Journal Articles
Boubel, Paula, Colless, Matthew, Said, Khaled and Staveley-Smith, Lister (2024). An improved Tully-Fisher estimate of H0. Monthly Notices of the Royal Astronomical Society, 533 (2), 1550-1559. doi: 10.1093/mnras/stae1925
Dogruel, M. Burak, Taylor, Edward N., Cluver, Michelle, Colless, Matthew, de Graaff, Anna, Sonnenfeld, Alessandro, Lucey, John R., D’Eugenio, Francesco, Howlett, Cullan and Said, Khaled (2024). Galaxy and Mass Assembly (GAMA): stellar-to-dynamical mass relation. II. peculiar velocities. The Astrophysical Journal, 970 (2) 149. doi: 10.3847/1538-4357/ad4ce2
DESI Collaboration, Adame, A. G., Aguilar, J., Ahlen, S., Alam, S., Aldering, G., Alexander, D. M., Alfarsy, R., Prieto, C. Allende, Alvarez, M., Alves, O., Anand, A., Andrade-Oliveira, F., Armengaud, E., Asorey, J., Avila, S., Aviles, A., Bailey, S., Balaguera-Antolínez, A., Ballester, O., Baltay, C., Bault, A., Bautista, J., Behera, J., Beltran, S. F., BenZvi, S., Beraldo e Silva, L., Bermejo-Climent, J. R., Berti, A. ... Zu, Y. (2024). The Early Data Release of the Dark Energy Spectroscopic Instrument. The Astronomical Journal, 168 (2) 58, 58. doi: 10.3847/1538-3881/ad3217
D’Eugenio, Francesco, Colless, Matthew, van der Wel, Arjen, Vaughan, Sam P, Said, Khaled, van de Sande, Jesse, Bland-Hawthorn, Joss, Bryant, Julia J, Croom, Scott M, López-Sánchez, Ángel R, Lorente, Nuria P F, Maiolino, Roberto and Taylor, Edward N (2024). The hyperplane of early-type galaxies: using stellar population properties to increase the precision and accuracy of the fundamental plane as a distance indicator. Monthly Notices of the Royal Astronomical Society, 532 (2), 1775-1795. doi: 10.1093/mnras/stae1582
Boubel, Paula, Colless, Matthew, Said, Khaled and Staveley-Smith, Lister (2024). Large-scale motions and growth rate from forward-modelling Tully-Fisher peculiar velocities. Monthly Notices of the Royal Astronomical Society, 531 (1), 84-109. doi: 10.1093/mnras/stae1122
DESI Collaboration, Adame, A. G., Aguilar, J., Ahlen, S., Alam, S., Aldering, G., Alexander, D. M., Alfarsy, R., Allende Prieto, C., Alvarez, M., Alves, O., Anand, A., Andrade-Oliveira, F., Armengaud, E., Asorey, J., Avila, S., Aviles, A., Bailey, S., Balaguera-Antolínez, A., Ballester, O., Baltay, C., Bault, A., Bautista, J., Behera, J., Beltran, S. F., BenZvi, S., Beraldo e Silva, L., Bermejo-Climent, J. R., Berti, A. ... Zu, Y. (2024). Validation of the scientific program for the Dark Energy Spectroscopic Instrument. The Astronomical Journal, 167 (2) 62. doi: 10.3847/1538-3881/ad0b08
Giani, Leonardo, Howlett, Cullan, Said, Khaled, Davis, Tamara and Vagnozzi, Sunny (2024). An effective description of Laniakea: impact on cosmology and the local determination of the Hubble constant. Journal of Cosmology and Astroparticle Physics, 2024 (1) 071. doi: 10.1088/1475-7516/2024/01/071
Saulder, Christoph, Howlett, Cullan, Douglass, Kelly A, Said, Khaled, BenZvi, Segev, Ahlen, Steven, Aldering, Greg, Bailey, Stephen, Brooks, David, Davis, Tamara M, de la Macorra, Axel, Dey, Arjun, Font-Ribera, Andreu, Forero-Romero, Jaime E, Gontcho, Satya Gontcho A, Honscheid, Klaus, Kim, Alex G, Kisner, Theodore, Kremin, Anthony, Landriau, Martin, Levi, Michael E, Lucey, John, Meisner, Aaron M, Miquel, Ramon, Moustakas, John, Myers, Adam D, Palanque-Delabrouille, Nathalie, Percival, Will, Poppett, Claire ... Zou, Hu (2023). Target selection for the DESI peculiar velocity survey. Monthly Notices of the Royal Astronomical Society, 525 (1), 1106-1125. doi: 10.1093/mnras/stad2200
Hatamkhani, N., Kraan-Korteweg, R.C., Blyth, S.L., Said, K. and Elagali, A. (2023). Galaxy clusters in the Vela supercluster. – I. Deep NIR catalogues. Monthly Notices of the Royal Astronomical Society, 522 (2), 2223-2240. doi: 10.1093/mnras/stad1134
Giani, Leonardo, Howlett, Cullan, Ruggeri, Rossana, Bianchini, Federico, Said, Khaled and M. Davis, Tamara (2023). Cross-correlating radial peculiar velocities and CMB lensing convergence. Journal of Cosmology and Astroparticle Physics, 2023 (05) 002, 002. doi: 10.1088/1475-7516/2023/05/002
Courtois, Hélène M, Said, Khaled, Mould, Jeremy, Jarrett, T H, Pomarède, Daniel, Westmeier, Tobias, Staveley-Smith, Lister, Dupuy, Alexandra, Hong, Tao, Guinet, Daniel, Howlett, Cullan, Deg, Nathan, For, Bi-Qing, Kleiner, Dane, Koribalski, Bärbel, Lee-Waddell, Karen, Rhee, Jonghwan, Spekkens, Kristine, Wang, Jing, Wong, O I, Bigiel, Frank, Bosma, Albert, Colless, Matthew, Davis, Tamara, Holwerda, Benne, Karachentsev, Igor, Kraan-Korteweg, Renée C, McQuinn, Kristen B W, Meurer, Gerhardt ... Taylor, Edward (2023). WALLABY pre-pilot and pilot survey: the Tully Fisher relation in Eridanus, Hydra, Norma and NGC4636 fields. Monthly Notices of the Royal Astronomical Society, 519 (3), 4589-4607. doi: 10.1093/mnras/stac3246
Tully, R. Brent, Kourkchi, Ehsan, Courtois, Hélène M., Anand, Gagandeep S., Blakeslee, John P., Brout, Dillon, Jaeger, Thomas de, Dupuy, Alexandra, Guinet, Daniel, Howlett, Cullan, Jensen, Joseph B., Pomarède, Daniel, Rizzi, Luca, Rubin, David, Said, Khaled, Scolnic, Daniel and Stahl, Benjamin E. (2023). Cosmicflows-4. The Astrophysical Journal, 944 (1) 94, 1-31. doi: 10.3847/1538-4357/ac94d8
Bell, Rianna, Said, Khaled, Davis, Tamara and Jarrett, T.H. (2023). Calibration of the Tully-Fisher relation in the WISE W1 (3.4μm) and W2 (4.6μm) Bands. Monthly Notices of the Royal Astronomical Society, 519 (1), 102-120. doi: 10.1093/mnras/stac3407
Bell, Rianna, Said, Khaled, Davis, Tamara and Jarrett, T. H. (2023). Calibration of the Tully-Fisher relation in the WISE W1 (3.4 μm) and W2 (4.6 μm) bands. Monthly Notices of the Royal Astronomical Society, 519 (1), 102-120. doi: 10.1093/mnras/stac3407
Lan, Ting-Wen, Tojeiro, R., Armengaud, E., Prochaska, J. Xavier, Davis, T. M., Alexander, David M., Raichoor, A., Zhou, Rongpu, Yèche, Christophe, Balland, C., BenZvi, S., Berti, A., Canning, R., Carr, A., Chittenden, H., Cole, S., Cousinou, M.-C., Dawson, K., Dey, Biprateep, Douglass, K., Edge, A., Escoffier, S., Glanville, A., A Gontcho, S. Gontcho, Guy, J., Hahn, C., Howlett, C., Hwang, Ho Seong, Jiang, L. ... Zhou, Zhimin (2023). The DESI survey validation: results from visual inspection of bright galaxies, luminous red galaxies, and emission-line galaxies. The Astrophysical Journal, 943 (1) 68, 68. doi: 10.3847/1538-4357/aca5fa
Abareshi, B., Aguilar, J., Ahlen, S., Alam, Shadab, Alexander, David M., Alfarsy, R., Allen, L., Prieto, C. Allende, Alves, O., Ameel, J., Armengaud, E., Asorey, J., Aviles, Alejandro, Bailey, S., Balaguera-Antolínez, A., Ballester, O., Baltay, C., Bault, A., Beltran, S. F., Benavides, B., BenZvi, S., Berti, A., Besuner, R., Beutler, Florian, Bianchi, D., Blake, C., Blanc, P., Blum, R., Bolton, A. ... Zu, Y. (2022). Overview of the instrumentation for the Dark Energy Spectroscopic Instrument. The Astronomical Journal, 164 (5) 207, 1-62. doi: 10.3847/1538-3881/ac882b
Carr, Anthony, Davis, Tamara M., Scolnic, Dan, Said, Khaled, Brout, Dillon, Peterson, Erik R. and Kessler, Richard (2022). The Pantheon+ analysis: Improving the redshifts and peculiar velocities of Type Ia supernovae used in cosmological analyses. Publications of the Astronomical Society of Australia, 39 e046, 1-23. doi: 10.1017/pasa.2022.41
Peterson, Erik R., Kenworthy, W. D’Arcy, Scolnic, Daniel, Riess, Adam G., Brout, Dillon, Carr, Anthony, Courtois, Hélène, Davis, Tamara, Dwomoh, Arianna, Jones, David O., Popovic, Brodie, Rose, Benjamin M. and Said, Khaled (2022). The Pantheon+ Analysis: evaluating peculiar velocity corrections in cosmological analyses with nearby Type Ia Supernovae. The Astrophysical Journal, 938 (2) 112, 1-16. doi: 10.3847/1538-4357/ac4698
Brout, Dillon, Scolnic, Dan, Popovic, Brodie, Riess, Adam G., Carr, Anthony, Zuntz, Joe, Kessler, Rick, Davis, Tamara M., Hinton, Samuel, Jones, David, Kenworthy, W. D’Arcy, Peterson, Erik R., Said, Khaled, Taylor, Georgie, Ali, Noor, Armstrong, Patrick, Charvu, Pranav, Dwomoh, Arianna, Meldorf, Cole, Palmese, Antonella, Qu, Helen, Rose, Benjamin M., Sanchez, Bruno, Stubbs, Christopher W., Vincenzi, Maria, Wood, Charlotte M., Brown, Peter J., Chen, Rebecca, Chambers, Ken ... Wiseman, Phil (2022). The Pantheon+ Analysis: cosmological constraints. The Astrophysical Journal, 938 (2) 110, 1-24. doi: 10.3847/1538-4357/ac8e04
Howlett, Cullan, Said, Khaled, Lucey, John R., Colless, Matthew, Qin, Fei, Lai, Yan, Tully, R. Brent and Davis, Tamara M. (2022). The Sloan Digital Sky Survey peculiar velocity catalogue. Monthly Notices of the Royal Astronomical Society, 515 (1), 953-976. doi: 10.1093/mnras/stac1681
Driver, Simon P, Bellstedt, Sabine, Robotham, Aaron S G, Baldry, Ivan K, Davies, Luke J, Liske, Jochen, Obreschkow, Danail, Taylor, Edward N, Wright, Angus H, Alpaslan, Mehmet, Bamford, Steven P, Bauer, Amanda E, Bland-Hawthorn, Joss, Bilicki, Maciej, Bravo, Matías, Brough, Sarah, Casura, Sarah, Cluver, Michelle E, Colless, Matthew, Conselice, Christopher J, Croom, Scott M, de Jong, Jelte, D’Eugenio, Franceso, Propris, Roberto De, Dogruel, Burak, Drinkwater, Michael J, Dvornik, Andrej, Farrow, Daniel J, Frenk, Carlos S ... Wilkins, Steve M (2022). Galaxy And Mass Assembly (GAMA): Data Release 4 and the z < 0.1 total and z < 0.08 morphological galaxy stellar mass functions. Monthly Notices of the Royal Astronomical Society, 513 (1), 439-467. doi: 10.1093/mnras/stac472
Westmeier, T., Deg, N., Spekkens, K., Reynolds, T. N., Shen, A. X., Gaudet, S., Goliath, S., Huynh, M. T., Venkataraman, P., Lin, X., O’Beirne, T., Catinella, B., Cortese, L., Dénes, H., Elagali, A., For, B.-Q., Józsa, G. I. G., Howlett, C., van der Hulst, J. M., Jurek, R. J., Kamphuis, P., Kilborn, V. A., Kleiner, D., Koribalski, B. S., Lee-Waddell, K., Murugeshan, C., Rhee, J., Serra, P., Shao, L. ... Said, K. (2022). WALLABY pilot survey: public release of H i data for almost 600 galaxies from phase 1 of ASKAP pilot observations. Publications of the Astronomical Society of Australia, 39 e058. doi: 10.1017/pasa.2022.50
Qin, Fei, Parkinson, David, Howlett, Cullan and Said, Khaled (2021). Cosmic flow measurement and mock sampling algorithm of Cosmicflows-4 Tully−Fisher catalog. The Astrophysical Journal, 922 (1) 59, 59. doi: 10.3847/1538-4357/ac249d
Ramatsoku, M., W Verheijen, M.A., Kraan-Korteweg, R.C., Jarrett, T.H., Said, K. and Schröder, A.C. (2020). A near-infrared study of the obscured 3C129 galaxy cluster. Astronomy and Astrophysics, 644 A107, 1-24. doi: 10.1051/0004-6361/202038342
Said, Khaled, Colless, Matthew, Magoulas, Christina, Lucey, John R and Hudson, Michael J (2020). Joint analysis of 6dFGS and SDSS peculiar velocities for the growth rate of cosmic structure and tests of gravity. Monthly Notices of the Royal Astronomical Society, 497 (1), 1275-1293. doi: 10.1093/mnras/staa2032
Said, Khaled, Kraan-Korteweg, Renée C and Staveley-Smith, Lister (2019). The H i mass function in the Parkes H i Zone of Avoidance survey. Monthly Notices of the Royal Astronomical Society, 486 (2), 1796-1804. doi: 10.1093/mnras/stz956
Said, Khaled, Kraan-Korteweg, Renée C., Jarrett, T. H., Staveley-Smith, Lister and Williams, Wendy L. (2016). NIR Tully–Fisher in the zone of avoidance – III. deep NIR catalogue of the HIZOA galaxies. Monthly Notices of the Royal Astronomical Society, 462 (3) stw1887, 3386-3400. doi: 10.1093/mnras/stw1887
Said, Khaled, Kraan-Korteweg, Renée C., Staveley-Smith, Lister, Williams, Wendy L., Jarrett, T. H. and Springob, Christopher M. (2016). NIR Tully–Fisher in the zone of avoidance – II. 21 cm H i-line spectra of southern ZOA galaxies. Monthly Notices of the Royal Astronomical Society, 457 (3), 2366-2376. doi: 10.1093/mnras/stw105
Said, K., Kraan-Korteweg, R. C. and Jarrett, T. H. (2015). On how to extend the NIR Tully-Fisher relation to be truly all-sky. Monthly Notices of the Royal Astronomical Society, 447 (2), 1618-1629. doi: 10.1093/mnras/stu2496
Conference Papers
Puspitarini, L., Premadi, P. W., Colless, M., Oh, S., Hidayat, T., Putra, M., Barone, T. M., Said, K. and Barat, D. (2019). A Search for Extragalactic Diffuse Interstellar Bands: SAMI Data. 7th Biannual International Conference on Mathematics and Natural Sciences (ICMNS), Indonesia, 2-3 November 2018. Bristol, United Kingdom: Institute of Physics Publishing. doi: 10.1088/1742-6596/1245/1/012013
Said, K., Kraan-Korteweg, R. C. and Jarrett, T. H. (2013). Galaxy peculiar velocities in the Zone of Avoidance. 58th Annual Conference of the South African Institute of Physics (SAIP), Richards Bay, South Africa, 8-12 July 2013. Lynnwood Ridge, South Africa: South African Institute of Physics.