Staff profile

• Big Bang Nucleosynthesis
• Cosmology
• Fundamental Physics
• The First Stars

Journal Article

• Lofthouse, E. K., Fumagalli, M., Fossati, M., Dutta, R., Galbiati, M., Arrigoni Battaia, F., …Prochaska, J. X. (2023). MUSE Analysis of Gas around Galaxies (MAGG) – IV. The gaseous environment of z ∼ 3–4 Ly α emitting galaxies. Monthly Notices of the Royal Astronomical Society, 518(1), 305 - 331. https://doi.org/10.1093/mnras/stac3089
• Cooke, R. J., Noterdaeme, P., Johnson, J. W., Pettini, M., Welsh, L., Peroux, C., …Weinberg, D. H. (2022). Primordial Helium-3 Redux: The Helium Isotope Ratio of the Orion Nebula*. Astrophysical Journal, 932(1), Article 60. https://doi.org/10.3847/1538-4357/ac6503
• Lai, K., Manalili, D., Ubachs, W., Cooke, R., Pettini, M., de Oliveira, N., & Salumbides, E. (2022). Vacuum Ultraviolet Fourier-transform Spectroscopy of 16O and 18O. Astrophysical Journal Supplement, 260(2), Article 37. https://doi.org/10.3847/1538-4365/ac6350
• Fossati, M., Fumagalli, M., Lofthouse, E., Dutta, R., Cantalupo, S., Arrigoni Battaia, F., …Cooke, R. (2021). MUSE analysis of gas around galaxies (MAGG) – III. The gas and galaxy environment of z = 3–4.5 quasars. Monthly Notices of the Royal Astronomical Society, 503(2), 3044-3064. https://doi.org/10.1093/mnras/stab660
• Welsh, L., Cooke, R., & Fumagalli, M. (2021). The stochastic enrichment of Population II stars. Monthly Notices of the Royal Astronomical Society, 500(4), 5214-5228. https://doi.org/10.1093/mnras/staa3342
• Dutta, R., Fumagalli, M., Fossati, M., Lofthouse, E. K., Prochaska, J. X., Battaia, F. A., …O’Meara, J. M. (2020). MUSE Analysis of Gas around Galaxies (MAGG) - II: Metal-enriched halo gas around z ∼ 1 galaxies. Monthly Notices of the Royal Astronomical Society, 499(4), 5022-5046. https://doi.org/10.1093/mnras/staa3147
• Hsyu, T., Cooke, R. J., Prochaska, J. X., & Bolte, M. (2020). The PHLEK Survey: A New Determination of the Primordial Helium Abundance. Astrophysical Journal, 896(1), Article 77. https://doi.org/10.3847/1538-4357/ab91af
• Pettini, M., Fumagalli, M., Welsh, L., & Cooke, R. (2020). A limit on Planck-scale froth with ESPRESSO. Monthly Notices of the Royal Astronomical Society, 494(4), 4884-4890. https://doi.org/10.1093/mnras/staa440
• Pettini, M., Fumagalli, M., Cooke, R., & Welsh, L. (2020). A bound on the 12C/13C ratio in near-pristine gas with ESPRESSO. Monthly Notices of the Royal Astronomical Society, 494(1), 1411-1423. https://doi.org/10.1093/mnras/staa807
• Cooke, R. (2020). The ACCELERATION programme: I. Cosmology with the redshift drift★. Monthly Notices of the Royal Astronomical Society, 492(2), 2044-2057. https://doi.org/10.1093/mnras/stz3465
• Sykes, C., Fumagalli, M., Cooke, R., & Theuns, T. (2020). Determining the primordial helium abundance and UV background using fluorescent emission in star-free dark matter haloes. Monthly Notices of the Royal Astronomical Society, 492(2), 2151-2160. https://doi.org/10.1093/mnras/stz3573
• Lofthouse, E. K., Fumagalli, M., Fossati, M., O’Meara, J. M., Murphy, M. T., Christensen, L., …Morris, S. L. (2020). MUSE Analysis of Gas around Galaxies (MAGG) - I: Survey design and the environment of a near pristine gas cloud at z ≈ 3.5. Monthly Notices of the Royal Astronomical Society, 491(2), 2057-2074. https://doi.org/10.1093/mnras/stz3066
• Prochaska, J., Hennawi, J., Westfall, K., Cooke, R., Wang, F., Hsyu, T., …Pelliccia, D. (2020). PypeIt: The Python Spectroscopic Data Reduction Pipeline. The Journal of Open Source Software, 5(56), Article 2308. https://doi.org/10.21105/joss.02308
• Fossati, M., Fumagalli, M., Lofthouse, E., D’Odorico, V., Lusso, E., Cantalupo, S., …Theuns, T. (2019). The MUSE Ultra Deep Field (MUDF). II. Survey design and the gaseous properties of galaxy groups at 0.5 < z < 1.5. Monthly Notices of the Royal Astronomical Society, 490(1), 1451-1469. https://doi.org/10.1093/mnras/stz2693
• Welsh, L., Cooke, R., & Fumagalli, M. (2019). Modelling the chemical enrichment of Population III supernovae: The origin of the metals in near-pristine gas clouds. Monthly Notices of the Royal Astronomical Society, 487(3), 3363-3376. https://doi.org/10.1093/mnras/stz1526
• Sykes, C., Fumagalli, M., Cooke, R., Theuns, T., & Benítez–Llambay, A. (2019). Fluorescent rings in star-free dark matter haloes. Monthly Notices of the Royal Astronomical Society, 487(1), 609-621. https://doi.org/10.1093/mnras/stz1234
• Cooke, R., & Fumagalli, M. (2018). Measurement of the primordial helium abundance from the intergalactic medium. Nature Astronomy, 2(12), 957-961. https://doi.org/10.1038/s41550-018-0584-z
• Hsyu, T., Cooke, R. J., Prochaska, J. X., & Bolte, M. (2018). Searching for the lowest metallicity galaxies in the local universe. Astrophysical Journal, 863(2), Article 134. https://doi.org/10.3847/1538-4357/aad18a
• Cooke, R. J., Pettini, M., & Steidel, C. C. (2018). One Percent Determination of the Primordial Deuterium Abundance. Astrophysical Journal, 855(2), Article 102. https://doi.org/10.3847/1538-4357/aaab53
• Sharma, M., Theuns, T., Frenk, C. S., & Cooke, R. J. (2018). Origins of carbon-enhanced metal-poor stars. Monthly Notices of the Royal Astronomical Society, 473(1), 984-995. https://doi.org/10.1093/mnras/stx2392
• Hsyu, T., Cooke, R. J., Prochaska, J. X., & Bolte, M. (2017). The Little Cub: Discovery of an Extremely Metal-poor Star-forming Galaxy in the Local Universe. Astrophysical Journal, 845(2), Article L22. https://doi.org/10.3847/2041-8213/aa821f
• Cooke, R. J., Pettini, M., & Steidel, C. C. (2017). Discovery of the most metal-poor damped Lyman-α system. Monthly Notices of the Royal Astronomical Society, 467(1), 802-811. https://doi.org/10.1093/mnras/stx037
• Cooke, R., & Pettini, M. (2016). The primordial abundance of deuterium: ionization correction. Monthly Notices of the Royal Astronomical Society, 455(2), 1512-1521. https://doi.org/10.1093/mnras/stv2343
• Cooke, R., Pettini, M., Nollett, K., & Jorgenson, R. (2016). The Primordial Deuterium Abundance of the Most Metal-poor Damped Lyman-alpha System. Astrophysical Journal, 830(2), Article 148. https://doi.org/10.3847/0004-637x/830/2/148
• Mawatari, K., Inoue, A., Kousai, K., Hayashino, T., Cooke, R., Prochaska, J., …Matsuda, Y. (2016). Discovery of a Damped Ly-alpha Absorber at z = 3.3 along a Galaxy Sight-line in the SSA22 Field. Astrophysical Journal, 817(2), Article 161. https://doi.org/10.3847/0004-637x/817/2/161
• Cooke, R. (2015). Big Bang Nucleosynthesis and the Helium Isotope Ratio. Astrophysical Journal Letters, 812, https://doi.org/10.1088/2041-8205/812/1/l12
• Shen, S., Cooke, R., Ramirez-Ruiz, E., Madau, P., Mayer, L., & Guedes, J. (2015). The History of R-Process Enrichment in the Milky Way. Astrophysical Journal, 807, Article 115. https://doi.org/10.1088/0004-637x/807/2/115
• Cucchiara, A., Fumagalli, M., Rafelski, M., Kocevski, D., Prochaska, J., Cooke, R., & Becker, G. (2015). Unveiling the Secrets of Metallicity and Massive Star Formation Using DLAs along Gamma-Ray Bursts. Astrophysical Journal, 804(1), https://doi.org/10.1088/0004-637x/804/1/51
• Cooke, R., Pettini, M., & Jorgenson, R. (2015). The most metal-poor damped Lyα systems: An insight into dwarf galaxies at high redshift. Astrophysical Journal, 800(1), Article 12. https://doi.org/10.1088/0004-637x/800/1/12
• Cooke, R., & Madau, P. (2014). Carbon-enhanced Metal-poor Stars: Relics from the Dark Ages. Astrophysical Journal, 791(2), Article 116. https://doi.org/10.1088/0004-637x/791/2/116
• Cooke, R., Pettini, M., Jorgenson, R., Murphy, M., & Steidel, C. (2014). Precision Measures of the Primordial Abundance of Deuterium. Astrophysical Journal, 781(1), Article 31. https://doi.org/10.1088/0004-637x/781/1/31
• Cooke, R., Pettini, M., Jorgenson, R., Murphy, M., Rudie, G., & Steidel, C. (2013). The explosion energy of early stellar populations: the Fe-peak element ratios in low-metallicity damped Ly-alpha systems. Monthly Notices of the Royal Astronomical Society, 431, 1625-1637. https://doi.org/10.1093/mnras/stt282
• Steiner, J., Reis, R., Fabian, A., Remillard, R., McClintock, J., Gou, L., …Sanders, J. (2012). A broad iron line in LMC X-1. Monthly Notices of the Royal Astronomical Society, 427, 2552-2561. https://doi.org/10.1111/j.1365-2966.2012.22128.x
• Deason, A., Belokurov, V., Evans, N., Koposov, S., Cooke, R., Peñarrubia, J., …Olszewski, E. (2012). The cold veil of the Milky Way stellar halo. Monthly Notices of the Royal Astronomical Society, 425(4), 2840-2853. https://doi.org/10.1111/j.1365-2966.2012.21639.x
• Pettini, M., & Cooke, R. (2012). A new, precise measurement of the primordial abundance of deuterium. Monthly Notices of the Royal Astronomical Society, 425, 2477-2486. https://doi.org/10.1111/j.1365-2966.2012.21665.x
• Cooke, R., Pettini, M., & Murphy, M. (2012). A new candidate for probing Population III nucleosynthesis with carbon-enhanced damped Ly-alpha systems. Monthly Notices of the Royal Astronomical Society, 425, 347-354. https://doi.org/10.1111/j.1365-2966.2012.21470.x
• Cooke, R., Pettini, M., Steidel, C., Rudie, G., & Nissen, P. (2011). The most metal-poor damped Lyα systems: insights into chemical evolution in the very metal-poor regime. Monthly Notices of the Royal Astronomical Society, 417(2), 1534-1558. https://doi.org/10.1111/j.1365-2966.2011.19365.x
• Cooke, R., Pettini, M., Steidel, C., Rudie, G., & Jorgenson, R. (2011). A carbon-enhanced metal-poor damped Ly$\alpha$ system: probing gas from Population III nucleosynthesis?. Monthly Notices of the Royal Astronomical Society, 412, 1047-1058. https://doi.org/10.1111/j.1365-2966.2010.17966.x
• Cooke, R., Pettini, M., Steidel, C., King, L., Rudie, G., & Rakic, O. (2010). A newly discovered DLA and associated Ly-alpha emission in the spectra of the gravitationally lensed quasar UM673A,B. Monthly Notices of the Royal Astronomical Society, 409, 679-693. https://doi.org/10.1111/j.1365-2966.2010.17331.x
• Cooke, R., & Lynden-Bell, D. (2010). Does the Universe accelerate equally in all directions?. Monthly Notices of the Royal Astronomical Society, 401, 1409-1414. https://doi.org/10.1111/j.1365-2966.2009.15755.x
• Cooke, R., Bland-Hawthorn, J., Sharp, R., & Kuncic, Z. (2008). Ionization Cone in the X-Ray Binary LMC X-1. Astrophysical Journal, 687, https://doi.org/10.1086/593169
• Cooke, R., Kuncic, Z., Sharp, R., & Bland-Hawthorn, J. (2007). Spectacular Trailing Streamers near LMC X-1: The First Evidence of a Jet?. Astrophysical Journal, 667, L163-L166. https://doi.org/10.1086/522517