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Srinivasan Raghunathan

Data-driven cosmologist
Department of Physics
University of California, Davis, USA
Email: sriniraghuna[at]gmail.com
Github: Link

 
 
 

As a top-tier author: arXiv


  1. S. Raghunathan, A. Mitra, N. Šarčević, et al., ``Probing Physics Beyond the Standard Model through Combined Analyses of Next-Generation Type Ia Supernova, CMB, and BAO Surveys'', Accepted for publication in ApJ, 2026, 2603.09973.
  2. S. Raghunathan, P. Ade, D. Anbajagane, et al., ``Measurement of the Full Shape of the Thermal Sunyaev-Zeldovich Power Spectrum from South Pole Telescope and {\it Herschel}-SPIRE Observations'', ApJ Letters, 1002, L22, 2026, 2602.10107.
  3. A. Maniyar, F. Bianchini, K. Wu, S. Raghunathan, et al., ``SPT-3G D1: Compton-y maps using data from the SPT-3G and Planck surveys'', submitted to PRD, 2026, 2602.11279.
  4. K. Prabhu, S. Raghunathan, et al., ``Learning Correlated Astrophysical Foregrounds with Denoising Diffusion Probabilistic Models'', JCAP, 09, 0122025, 2506.09036.
  5. M. Doohan, M. Millea, S. Raghunathan, et al., ``Quantifying Bias due to non-Gaussian Foregrounds in an Optimal Reconstruction of CMB Lensing and Temperature Power Spectra'', JCAP, 09, 048, 2025, 2502.20801.
  6. E. Schiappucci, S. Raghunathan, C. To, et al., ``Constraining cosmological parameters using the pairwise kinematic Sunyaev-Zel'dovich effect with CMB-S4 and future galaxy cluster surveys'', PRD, 111, 6, 2024, 2409.18368.
  7. B. Ansarinejad, S. Raghunathan, T. M. C. Abbott, et al., ``Mass calibration of DES Year-3 clusters via SPT-3G CMB cluster lensing'', JCAP, 07, 024, 2024, 2404.02153.
  8. K. Prabhu, S. Raghunathan, M. Millea, et al., ``Testing the LCDM Cosmological Model with Forthcoming Measurements of the Cosmic Microwave Background with SPT-3G'', ApJ, 973, 12024, 2403.17925.
  9. S. Raghunathan, P. Ade, A. Anderson, et al., ``First Constraints on the Epoch of Reionization Using the non-Gaussianity of the Kinematic Sunyaev-Zel{'}dovich Effect from the South Pole Telescope and {\it Herschel}-SPIRE Observations'', PRL, 1133, 12, 2024, 2403.02337.
  10. L. Di Mascolo, Y. Perrott, ... S. Raghunathan, et al., ``Atacama Large Aperture Submillimeter Telescope (AtLAST) Science: Resolving the Hot and Ionized Universe through the Sunyaev-Zeldovich effect'', Submitted to Open Research Europe, 2024, 2403.00909.
  11. D. Jain, T. Choudhury, S. Raghunathan, et al., ``Probing the Physics of Reionization Using kSZ Power Spectrum from Current and Upcoming CMB Surveys'', MNRAS, 2023, 530, 35-51, 2311.00315.
  12. K. Levy, S. Raghunathan, and K.Basu, A Foreground-Immune CMB-Cluster Lensing Estimator, JCAP, 2023, 23, 23, 2305.06326.
  13. S. Raghunathan and Y.Omori, A Cross-Internal Linear Combination Approach to Probe the Secondary CMB Anisotropies: Kinematic Sunyaev-Zel{'}dovich Effect and CMB Lensing, ApJ, 954, 17, 2023, 2304.09166.
  14. S. Raghunathan, Assessing the Importance of Noise from Thermal Sunyaev-Zel{'}dovich Signals for CMB Cluster Surveys and Cluster Cosmology, ApJ, 928, 16, 2022, 2112.07656.
  15. S. Raghunathan, N. Whitehorn, M. Alvarez et al., Constraining Cluster Virialization Mechanism and Cosmology using Thermal-SZ-selected clusters from Future CMB Surveys, ApJ, 926, 172, 2022, 2107.10250.
  16. S. Raghunathan, S. Nadathur, B. Sherwin et al., The Gravitational Lensing Signatures of BOSS Voids in the Cosmic Microwave Background, ApJ, 890, 168, 2020, 1911.08475.
  17. S. Raghunathan, S. Patil, E. Baxter et al., A Detection of CMB-Cluster Lensing using Polarization Data from SPTpol, Phys. Rev. Letters, 123, 181301, 2019; 1907.08605.
  18. Also elected as editor's suggestion by Phys. Rev. Letters; Physics SYNOPSIS.
  19. S. Patil, S. Raghunathan, C. Reichardt, Suppressing the thermal SZ-induced variance in CMB-cluster lensing estimators, ApJ, 888, 9, 2020, 1905.07943.
  20. S. Raghunathan, G. Holder, J. Bartlett et al., An Inpainting Approach to Tackle the Kinematic and Thermal SZ Induced Biases in CMB-Cluster Lensing Estimators, JCAP, 11, 037, 2019, 1904.13392.
  21. E. Baxter, B. Sherwin, S. Raghunathan, Constraining the Rotational Kinematic Sunyaev-Zel'dovich Effect in Massive Galaxy Clusters, JCAP, 6, 001, 2019, 1904.04199.
  22. K. Aylor, M. Joy, ... S. Raghunathan et al., Sounds Discordant: Classical Distance Ladder & $\Lambda$CDM -based Determinations of the Cosmological Sound Horizon, ApJ, 874, 4, 2019, 1811.00537.
  23. S. Raghunathan, S. Patil, E. Baxter et al., Mass Calibration of Optically Selected DES clusters using a Measurement of CMB-Cluster Lensing with SPTpol Data, ApJ, 872, 170, 2019, 1810.10998.
  24. S. Raghunathan, F. Bianchini, C. Reichardt, Imprints of gravitational lensing in the Planck CMB data at the location of WISExSCOS galaxies, Phys. Rev. D, 98, 4, 2018, 1710.09770.
  25. T. Friday, R. Clowes, S. Raghunathan et al., Accidental deep field selection bias in CMB temperature and SNe redshift correlation, MNRAS, 479, 1137, 2018, 1805.09581.
  26. A. Kusaka, T. Essinger-Hileman, ... S. Raghunathan et al., Results from the Atacama B-mode Search (ABS) Experiment, JCAP, 09 005, 2018, 1801.01218; PhD thesis project.
  27. E. Baxter, S. Raghunathan, T. Crawford et al., A Measurement of CMB Cluster Lensing with SPT and DES Year 1 Data, MNRAS, 476, 2674, 2018, 1708.01360.
  28. S. Raghunathan, S. Patil, E. Baxter et al., Measuring galaxy cluster masses with CMB lensing using a Maximum Likelihood estimator: Statistical and systematic error budgets for future experiments, JCAP, 08, 030, 2017, 1705.00411.
  29. S. Raghunathan, R. Clowes, L. Campusano et al., Intervening Mg II absorption systems from the SDSS DR12 quasar spectra, MNRAS, 463, 2640, 2016, 1608.05112.
  30. R. Clowes, L. Haberzettl, S. Raghunathan et al., Ultraviolet Fe II Emission in Fainter Quasars: Luminosity Dependences, and the Influence of Environments, MNRAS, 460, 1428, 2016, 1604.08411.
  31. S.Simon, S. Raghunathan, J. Appel, et al., Characterization of the Atacama B-mode Search, SPIE, 9153, 15, 2014.
  32. R. Clowes, S. Raghunathan, I. Soechting et al., Environments of strong / ultrastrong, ultraviolet Fe II emitting quasars, MNRAS, 433, 2467, 2013, 1304.7396.
  33. R. Clowes, K. Harris, S. Raghunathan et al., A structure in the early Universe at z $\sim$1.3 that exceeds the homogeneity scale of the R-W concordance cosmology, MNRAS, 429, 2910, 2013, 1211.6256.
 
 

As a contributing author:


  1. W. Quan, E. Camphuis, ... S. Raghunathan, et al., ``SPT-3G D1: Maps of the millimeter-wave sky from 2019 and 2020 observations of the SPT-3G Main field'', Submitted to PRD, 2026, 2603.20163.
  2. P. Chaubal, N. Huang, ... S. Raghunathan, et al., ``SPT-3G D1: A Measurement of Secondary Cosmic Microwave Background Anisotropy Power'', Submitted to JCAP, 2026, 2601.20551.
  3. A. Mitra, R. Kessler, ... S. Raghunathan, et al., ``A Fully Photometric Approach to Type Ia Supernova Cosmology in the LSST Era: Host Galaxy Redshifts and Supernova Classification'', Accepted, ApJ, 2025, 2512.06319.
  4. E. Camphuis, W. Quan, ... S. Raghunathan, et al., ``SPT-3G D1: CMB temperature and polarization power spectra and cosmology from 2019 and 2020 observations of the SPT-3G Main field'', 113, 8, PRD, 2026, 2506.20707.
  5. M. Archipley, A. Hryciuk, ... S. Raghunathan, et al., ``Millimeter-wave observations of Euclid Deep Field South using the South Pole Telescope: A data release of temperature maps and catalogs'', AAS, 2512.06319, A17, 2025, 2506.00298.
  6. C. Papovich, J. Cole, ... S. Raghunathan, et al., ``Galaxies in the Epoch of Reionization Are All Bark and No Bite -- Plenty of Ionizing Photons, Low Escape Fractions'', ApJ, 1000, 25, 2026, 2505.08870.
  7. J. Zebrowski, C. Reichardt, ... S. Raghunathan, et al., ``Constraints on Inflationary Gravitational Waves with Two Years of SPT-3G Data'', PRD, 112, 122025, 2505.02827.
  8. F. Qu, F. Ge, ... S. Raghunathan, et al., ``Unified and consistent structure growth measurements from joint ACT, SPT and \textit{Planck} CMB lensing'', Submitted to PRL, 2025, 2504.20038.
  9. E. Hughes, F. Ge, ... S. Raghunathan, et al., ``A cool dark sector, concordance, and a low σ8'', Submitted to PRD, 6, 2023, 2311.05678.
  10. J. Hern\'andez, L. Bleem, S. Raghunathan et al., Dissecting the Thermal SZ Power Spectrum by Halo Mass and Redshift in SPT-SZ Data and Simulations, The Open Journal of Astrophysics, 6, 41, 2023, 2307.15309.
  11. Z. Pan, F. Bianchini, ... S. Raghunathan et al., A Measurement of Gravitational Lensing of the Cosmic Microwave Background Using SPT-3G 2018 Data, PRD, 108, 12, 2023, 2308.11608.
  12. A. Gardner, E. Baxter, S. Raghunathan et al., Prospects for studying the mass and gas in protoclusters with future CMB observations, The Open Journal of Astrophysics, 7, 2, 2023, 2307.15309.
  13. J. Sanchez, Y. Omori, ... S. Raghunathan et al., Mapping gas around massive galaxies: cross-correlation of DES Y3 galaxies and Compton-$y$-maps from SPT and Planck, MNRAS, 2, 3163, 2022, 2210.08633.
  14. A. Anderson, P. Barry, ... S. Raghunathan et al., SPT-3G+: Mapping the High-Frequency Cosmic Microwave Background Using Kinetic Inductance Detectors, SPIE, 12190, 1219003, 2022, 2208.08559.
  15. K. Dibert, A. Anderson, ... S. Raghunathan et al., Forecasting ground-based sensitivity to the Rayleigh scattering of the CMB in the presence of astrophysical foregrounds, PRD, 106, 6, 2022, 2205.04494.
  16. The CMB-S4 Collaboration, Snowmass 2021 CMB-S4 White Paper, 2203.08024.
  17. The CMB-HD Collaboration, Snowmass2021 CMB-HD White Paper, 2203.08024.
  18. L. Bleem, T. Crawford, ... S. Raghunathan et al., CMB/kSZ and Compton-y Maps from 2500 square degrees of SPT-SZ and Planck Survey Data, submitted to ApJ, 2021, 2102.05033.
  19. D. Dutcher, L. Balkenhol, ... S. Raghunathan et al., Measurements of the E-Mode Polarization and Temperature-E-Mode Correlation of the CMB from SPT-3G 2018 Data, submitted to Phys. Rev. D, 2021, 2101.01684.
  20. CMB-S4 collaboration, CMB-S4 Science Case, Reference Design, and Project Plan, (2019), 1907.04473.
  21. A. Bender, P. A. R. Ade, ... S. Raghunathan et al., Year two instrument status of the SPT-3G cosmic microwave background receiver, SPIE, 10708, 1070803, 2018, 1809.00036.
  22. T. Essinger-Hileman, A. Kusaka, .... S. Raghunathan et al., Systematic effects from an ambient-temperature, continuously-rotating half-wave plate, Review of Scientific Instruments, 87, 2016, 1601.05901.
  23. S. Simon, J. Appel, ... S. Raghunathan et al., Characterization of the Atacama B-mode Search Detectors with a Half-Wave Plate, Journal of Low Temperature Physics, 184, 534, 2016, 1511.04760.
  24. A. Kusaka, T. Essinger-Hileman, ... S. Raghunathan et al., Modulation of CMB polarization with a warm rapidly rotating half-wave plate on the ABS instrument, Review of Scientific Instruments, 85, 2014, 1310.3711.
  25. S. Simon, J. Appel, ... S. Raghunathan et al., In Situ Time Constant and Optical Efficiency Measurements of TRUCE Pixels in the Atacama B-Mode Search, Journal of Low Temperature Physics, 176, 712, 2014.