Publications of S. P. Rajaguru

A list of publications authored or co-authored by S. P. Rajaguru, derived from the SAO/NASA Astrophysics Data System (ADS). The number in brackets after each title indicates the number of citations that the paper has received.

Orcid ID: 0000-0003-0003-4561

List of publications ordered by citations
Number of papers: 63 (refereed: 38)
No. of citations: 891
First author papers: 25 (refereed: 12)

2025

  1. Formation of Jet-driven Forced Reconnection Region and Associated Plasma Blobs in a Prominence Segment [1]
    Mishra, Sudheer K., Srivastava, A. K., Rajaguru, S. P. & Jelínek, P., ApJ, 982, 147

2024

  1. Investigation of Phase Shift and Travel Time of Acoustic Waves in the Lower Solar Atmosphere Using Multiheight Velocities [1]
    Kumar, Hirdesh, Kumar, Brajesh, Mathew, Shibu K., Bayanna, A. Raja & Rajaguru, S. P., ApJ, 972, 39

2023

  1. Origin of Quasi-periodic Pulsation at the Base of a Kink-unstable Jet [7]
    Mishra, Sudheer K., Sangal, Kartika, Kayshap, Pradeep, Jelínek, Petr, Srivastava, A. K. & Rajaguru, S. P., ApJ, 945, 113
  2. Dynamics of Photospheric Magnetic Flux Distribution and Variations in Solar RVs: A Study Using HARPS-N Solar and SDO Observations [3]
    Sen, Anisha & Rajaguru, S. P., ApJ, 956, 145

2022

  1. The Propagation of Coherent Waves Across Multiple Solar Magnetic Pores [12]
    Grant, S. D. T., Jess, D. B., Stangalini, M., Jafarzadeh, S., Fedun, V., Verth, G., Keys, P. H., Rajaguru, S. P., Uitenbroek, H., MacBride, C. D., Bate, W. & Gilchrist-Millar, C. A., ApJ, 938, 143
  2. Galactic Chemical Evolution of Exoplanet Hosting Stars: Are High-mass Planetary Systems Young? [11]
    Swastik, C., Banyal, Ravinder K., Narang, Mayank, Manoj, P., Sivarani, T., Rajaguru, S. P., Unni, Athira & Banerjee, Bihan, The Astronomical Journal, 164, 60
  3. Carbon Abundance of Stars in the LAMOST-Kepler Field [6]
    Unni, Athira, Narang, Mayank, Sivarani, Thirupathi, Manoj, P., Banyal, Ravinder K., Surya, Arun, Rajaguru, S. P. & Swastik, C., The Astronomical Journal, 164, 181
  4. Phase Shifts Measured in Evanescent Acoustic Waves above the Solar Photosphere and Their Possible Impacts on Local Helioseismology [7]
    Zhao, Junwei, Rajaguru, S. P. & Chen, Ruizhu, ApJ, 933, 109

2021

  1. Host Star Metallicity of Directly Imaged Wide-orbit Planets: Implications for Planet Formation [26]
    Swastik, C., Banyal, Ravinder K., Narang, Mayank, Manoj, P., Sivarani, T., Reddy, Bacham E. & Rajaguru, S. P., The Astronomical Journal, 161, 114

2020

  1. Time-Distance Helioseismology of Deep Meridional Circulation [10]
    Rajaguru, S. P. & Antia, H. M., Dynamics of the Sun and Stars; Honoring the Life and Work of Michael J. Thompson (Editors: Monteiro, Mário J. P. F. G., Garcia, Rafael A., Christensen-Dalsgaard, J\orgen & McIntosh, Scott W.), Astrophysics and Space Science Proceedings, 57, p. 107
  2. Signatures of Untwisting Magnetic Field in a Small Emerging Bipole in the Solar Photosphere [0]
    Sangeetha, C. R., Tripathi, Durgesh & Rajaguru, S. P., ApJ, 895, 67

2019

  1. Magnetic Fields and the Supply of Low-frequency Acoustic Wave Energy to the Solar Chromosphere [27]
    Rajaguru, S. P., Sangeetha, C. R. & Tripathi, Durgesh, ApJ, 871, 155

2018

  1. Twenty-one-year helioseismic measurement of solar meridional circulation from SOHO/MDI and SDO/HMI: Anomalous northern hemisphere during cycle 24 [0]
    Liang, Zhi-Chao, Gizon, Laurent, Birch, Aaron C., Duvall, Thomas L., Jr. & Rajaguru, S. P., Catalyzing Solar Connections, p. 59
  2. Solar meridional circulation from twenty-one years of SOHO/MDI and SDO/HMI observations. Helioseismic travel times and forward modeling in the ray approximation [29]
    Liang, Zhi-Chao, Gizon, Laurent, Birch, Aaron C., Duvall, Thomas L. & Rajaguru, S. P., A&A, 619, A99
  3. Helioseismic Inversion to Infer the Depth Profile of Solar Meridional Flow Using Spherical Born Kernels [25]
    Mandal, K., Hanasoge, S. M., Rajaguru, S. P. & Antia, H. M., ApJ, 863, 39
  4. Simulation of the small-scale magnetism in main-sequence stellar atmospheres [27]
    Salhab, R. G., Steiner, O., Berdyugina, S. V., Freytag, B., Rajaguru, S. P. & Steffen, M., A&A, 614, A78
  5. A study of acoustic halos in active region NOAA 11330 using multi-height SDO observations [3]
    Tripathy, S. C., Jain, K., Kholikov, S., Hill, F., Rajaguru, S. P. & Cally, P. S., Advances in Space Research, 61, 691

2017

  1. Signatures of the impact of flare-ejected plasma on the photosphere of a sunspot light bridge [12]
    Felipe, T., Collados, M., Khomenko, E., Rajaguru, S. P., Franz, M., Kuckein, C. & Asensio Ramos, A., A&A, 608, A97

2016

  1. p-Mode Interaction with Sunspots [14]
    Cally, P. S., Moradi, H. & Rajaguru, S. P., Geophysical Monograph Series, 216, 489
  2. 3D Simulations of Realistic Power Halos in Magnetohydrostatic Sunspot Atmospheres: Linking Theory and Observation [26]
    Rijs, Carlos, Rajaguru, S. P., Przybylski, Damien, Moradi, Hamed, Cally, Paul S. & Shelyag, Sergiy, ApJ, 817, 45
  3. Relationships between Fluid Vorticity, Kinetic Helicity, and Magnetic Field on Small-scales (Quiet-Network) on the Sun [3]
    Sangeetha, C. R. & Rajaguru, S. P., ApJ, 824, 120

2015

  1. Modeling approaches in helioseismology [0]
    Rajaguru, S. P., Extraterrestrial Seismology (Editors: Tong, V. & Garci, R.), p.123
  2. Meridional Circulation in the Solar Convection Zone: Time-Distance Helioseismic Inferences from Four Years of HMI/SDO Observations [102]
    Rajaguru, S. P. & Antia, H. M., ApJ, 813, 114

2014

  1. Properties of small-scale magnetism of stellar atmospheres [14]
    Steiner, Oskar, Salhab, René, Freytag, Bernd, Rajaguru, Paul, Schaffenberger, Werner & Steffen, Matthias, Publications of the Astronomical Society of Japan, 66, S5

2013

  1. Properties of High-Frequency Wave Power Halos Around Active Regions: An Analysis of Multi-height Data from HMI and AIA Onboard SDO [35]
    Rajaguru, S. P., Couvidat, S., Sun, Xudong, Hayashi, K. & Schunker, H., Solar Physics, 287, 107
  2. Reflection and Refraction of (Magneto-)Acoustic Waves at the Magnetic Canopy: Further Evidences from Multi-Height Seismic Data [2]
    Rajaguru, S. P., Sun, X., Hayashi, K. & Couvidat, S., Fifty Years of Seismology of the Sun and Stars (Editors: Jain, K., Tripathy, S. C., Hill, F., Leibacher, J. W. & Pevtsov, A. A.), Astronomical Society of the Pacific Conference Series, 478, p. 345
  3. First steps with CO5BOLD using HLLMHD and PP reconstruction . [7]
    Steiner, O., Rajaguru, S. P., Vigeesh, G., Steffen, M., Schaffenberger, W. & Freytag, B., Memorie della Societa Astronomica Italiana Supplementi, 24, 100

2012

  1. Line-of-Sight Observables Algorithms for the Helioseismic and Magnetic Imager (HMI) Instrument Tested with Interferometric Bidimensional Spectrometer (IBIS) Observations [55]
    Couvidat, Sébastien, Rajaguru, S. P., Wachter, Richard, Sankarasubramanian, K., Schou, Jesper & Scherrer, Philip H., Solar Physics, 278, 217
  2. Sunspot seismology: accounting for magnetohydrodynamic wave processes using imaging spectropolarimetry [1]
    Rajaguru, S. P., arXiv:1206.5671

2011

  1. Solar physics in India: developments from the nineteenth century to the present era [0]
    Hasan, S. S., Choudhuri, Arnab Rai & Rajaguru, S. P., Astronomical Society of India Conference Series, Astronomical Society of India Conference Series, 2, p. 367
  2. Studies of waves in sunspots using spectropolarimetric observations [0]
    MacDonald, Gordon A. & Rajaguru, S. P., Physics of Sun and Star Spots (Editors: Prasad Choudhary, Debi & Strassmeier, Klaus G.), IAU Symposium, 273, p. 361
  3. Effects of observation heights and atmospheric wave evolution in sunspot seismology: a study using HMI and AIA (1600 A and 1700 A) data [0]
    Rajaguru, S. P. & Couvidaa, S., SDO-3: Solar Dynamics and Magnetism from the Interior to the Atmosphere (Editors: Pesnell, W. Dean & Thompson, Barbara), p. 66
  4. A study of acoustic power maps over sunspot regions using HMI and AIA (1600 A and 1700 A) data [0]
    Rajaguru, S. P. & Couvidat, S., SDO-3: Solar Dynamics and Magnetism from the Interior to the Atmosphere (Editors: Pesnell, W. Dean & Thompson, Barbara), p. 65
  5. Magnetohydrostatic equilibrium in starspots: dependences on color (Teff) and surface gravity (g) [0]
    Rajaguru, S. P. & Hasan, S. S., Physics of Sun and Star Spots (Editors: Prasad Choudhary, Debi & Strassmeier, Klaus G.), IAU Symposium, 273, p. 276
  6. Sunspot seismology: accounting for magnetohydrodynamic wave processes using imaging spectropolarimetry [0]
    Rajaguru, S. P., Astronomical Society of India Conference Series, Astronomical Society of India Conference Series, 2, p. 181

2010

  1. Solar Physics at the Kodaikanal Observatory: A Historical Perspective [13]
    Hasan, S. S., Mallik, D. C. V., Bagare, S. P. & Rajaguru, S. P., Magnetic Coupling between the Interior and Atmosphere of the Sun (Editors: Hasan, S. S. & Rutten, R. J.), Astrophysics and Space Science Proceedings, 19, p. 12
  2. Modeling the Subsurface Structure of Sunspots [98]
    Moradi, H., Baldner, C., Birch, A. C., Braun, D. C., Cameron, R. H., Duvall, T. L., Gizon, L., Haber, D., Hanasoge, S. M., Hindman, B. W., Jackiewicz, J., Khomenko, E., Komm, R., Rajaguru, P., Rempel, M., Roth, M., Schlichenmaier, R., Schunker, H., Spruit, H. C., Strassmeier, K. G., Thompson, M. J. & Zharkov, S., Solar Physics, 267, 1
  3. Local Helioseismic and Spectroscopic Analyses of Interactions Between Acoustic Waves and a Sunspot [19]
    Rajaguru, S. P., Wachter, R., Sankarasubramanian, K. & Couvidat, S., ApJ, 721, L86

2008

  1. Impact of locally suppressed wave sources on helioseismic traveltimes [22]
    Hanasoge, S. M., Couvidat, S., Rajaguru, S. P. & Birch, A. C., MNRAS, 391, 1931
  2. Separating surface magnetic effects in sunspot seismology: new time-distance helioseismic diagnostics [3]
    Rajaguru, S. P., arXiv:0802.2756

2007

  1. Contamination by Surface Effects of Time-Distance Helioseismic Inversions for Sound Speed beneath Sunspots [35]
    Couvidat, S. & Rajaguru, S. P., ApJ, 661, 558
  2. Radiative Transfer Effects on Doppler Measurements as Sources of Surface Effects in Sunspot Seismology [42]
    Rajaguru, S. P., Sankarasubramanian, K., Wachter, R. & Scherrer, P. H., ApJ, 654, L175

2006

  1. Comparison of subsurface sound-speed structures of three active regions [3]
    Couvidat, S., Birch, A. C., Rajaguru, S. P. & Kosovichev, A. G., Solar Activity and its Magnetic Origin (Editors: Bothmer, Volker & Hady, Ahmed Abdel), IAU Symposium, 233, p. 75
  2. Influence of magnetic field on the Doppler measurements of velocity field in the solar photosphere and implications for helioseismology [4]
    Rajaguru, S. P., Wachter, R. & Hasan, S. S., Proceedings of the ILWS Workshop (Editors: Gopalswamy, N. & Bhattacharyya, A.), p. 21
  3. Sensitivity of Time-Distance Helioseismic Measurements to Spatial Variation of Oscillation Amplitudes. I. Observations and a Numerical Model [38]
    Rajaguru, S. P., Birch, A. C., Duvall, T. L., Jr., Thompson, M. J. & Zhao, J., ApJ, 646, 543
  4. Correcting Dopplergrams for solar active regions: consequences for local helioseismology [0]
    Wachter, R., Rajaguru, S. P. & Bogart, R. S., Proceedings of SOHO 18/GONG 2006/HELAS I, Beyond the spherical Sun (Editors: Fletcher, Karen & Thompson, Michael), ESA Special Publication, 624, p. 48
  5. Systematic Errors in Dopplergrams of Active Regions and Their Correction [0]
    Wachter, R. & Rajaguru, S. P., Solar Polarization 4 (Editors: Casini, R. & Lites, B. W.), Astronomical Society of the Pacific Conference Series, 358, p. 100

2005

  1. Comparison of GONG and MDI: Sound-Speed Anomalies beneath Two Active Regions [19]
    Hughes, S. J., Rajaguru, S. P. & Thompson, M. J., ApJ, 627, 1040
  2. How Similar are Starspots to Sunspots? [0]
    Rajaguru, S. P., Kurucz, R. L. & Hasan, S. S., Bulletin of the Astronomical Society of India, 33, 362

2004

  1. Comparison of GONG and MDI Sound-Speed Anomalies Beneath Two Active Regions [1]
    Hughes, S. J., Rajaguru, S. P. & Thompson, M. J., SOHO 14 Helio- and Asteroseismology: Towards a Golden Future (Editors: Danesy, D.), ESA Special Publication, 559, p. 493
  2. Application of Local-Area Helioseismic Methods as Predictors of Space Weather [3]
    Jensen, J. M., Lundstedt, H., Thompson, M. J., Pijpers, F. P. & Rajaguru, S. P., SOHO 14 Helio- and Asteroseismology: Towards a Golden Future (Editors: Danesy, D.), ESA Special Publication, 559, p. 497
  3. Local Modulation of Solar Oscillations by Magnetic Fields [11]
    Nicholas, C. J., Thompson, M. J. & Rajaguru, S. P., Solar Physics, 225, 213
  4. The Effect of Strong Magnetic Fields on Acoustic Power in Their Surroundings at the Surface of the Sun [2]
    Nicholas, C. J., Thompson, M. J. & Rajaguru, S. P., SOHO 14 Helio- and Asteroseismology: Towards a Golden Future (Editors: Danesy, D.), ESA Special Publication, 559, p. 590
  5. Comparison OF Noise Properties Of GONG And MDI Time-Distance Helioseismic Data [16]
    Rajaguru, S. P., Hughes, S. J. & Thompson, M. J., Solar Physics, 220, 381

2003

  1. Time-distance analysis of GONG+ data [0]
    Rajaguru, S. P., Hughes, S. J. & Thompson, M. J., GONG+ 2002. Local and Global Helioseismology: the Present and Future (Editors: Sawaya-Lacoste, Huguette), ESA Special Publication, 517, p. 75
  2. Acoustic Wave Propagation in the Sun: Implications for Wave Field and Time-Distance Helioseismology [10]
    Tong, C. H., Thompson, M. J., Warner, M. R., Rajaguru, S. P. & Pain, C. C., ApJ, 582, L121

2002

  1. Convective Intensification of Magnetic Flux Tubes in Stellar Photospheres [11]
    Rajaguru, S. P., Kurucz, R. L. & Hasan, S. S., ApJ, 565, L101

2001

  1. Photospheric Flow Fields and Properties of Embedded Small-scale Magnetic Flux Concentrations [0]
    Rajaguru, S. P., Srikanth, R. & Hasan, S. S., Recent Insights into the Physics of the Sun and Heliosphere: Highlights from SOHO and Other Space Missions (Editors: Brekke, P\ral, Fleck, Bernhard & Gurman, Joseph B.), IAU Symposium, 203, p. 205
  2. Ring Diagram Analysis of the Characteristics of Solar Oscillation Modes in Active Regions [63]
    Rajaguru, S. P., Basu, Sarbani & Antia, H. M., ApJ, 563, 410

2000

  1. Radiative Transfer Effects and the Dynamics of Small-Scale Magnetic Structures on the Sun [11]
    Rajaguru, S. P. & Hasan, S. S., ApJ, 544, 522

1999

  1. Radiative Transfer Effects and Convective Collapse: Size(flux)-Strength Distribution for the Small-Scale Solar Magnetic Flux Tubes [1]
    Rajaguru, S. & Hasan, S., High Resolution Solar Physics: Theory, Observations, and Techniques (Editors: Rimmele, T. R., Balasubramaniam, K. S. & Radick, R. R.), Astronomical Society of the Pacific Conference Series, 183, p. 53
  2. Radiative Cooling, Convective Downflows and the Formation of Small-Scale Strong Magnetic Field Structures on the Sun [0]
    Rajaguru, S. Paul & Hasan, S. S., SOHO-9 Workshop on Helioseismic Diagnostics of Solar Convection and Activity (Editors: Duvall, Jr., T. L. & Kosovichev, A. G.), 9, p. 16

1997

  1. Determination of linear polarization of solar corona from observations of the eclipse of October 24, 1995. [0]
    Srikanth, R., Sharma, M. & Rajaguru, S., Kodaikanal Observatory Bulletins, 13, 59

Created on Thu May 22 04:32:35 2025.