2026 Merja Tornikoski: Physics Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Physics	97	1828	1740	7	7	481	30756

Discipline name

D-Index

World Ranking

Current World Ranking

National Ranking

Current National Ranking

Publications

Citations

Physics

1828

1740

481

30756

Overview

Merja Tornikoski is affiliated with Aalto University in Finland and has contributed extensively to the field of Physics and Astronomy, with a particular focus on Astronomy and Astrophysics and Nuclear and High Energy Physics. Their research encompasses topics from astrophysical phenomena to advanced observational techniques and theoretical modeling in both cosmic and particle physics contexts.

Their work covers an array of main topics, including:

Astrophysics and Cosmic Phenomena
Radio Astronomy Observations and Technology
Astrophysical Phenomena and Observations
Gamma-ray bursts and supernovae
Galaxies: Formation, Evolution, Phenomena
Neutrino Physics Research
Solar and Space Plasma Dynamics

Merja Tornikoski has published numerous papers in notable scientific venues. Frequently chosen publication outlets include:

arXiv (Cornell University)
The Astrophysical Journal
Astronomy and Astrophysics
Monthly Notices of the Royal Astronomical Society
Universe

Their recent significant papers include:

"Kinematics of Parsec-scale Jets of Gamma-Ray Blazars at 43 GHz during 10 yr of the VLBA-BU-BLAZAR Program" (2022) published in The Astrophysical Journal Supplement Series
"Association of IceCube neutrinos with radio sources observed at Owens Valley and Metsähovi Radio Observatories" (2021) published by Springer Link (Chiba Institute of Technology)
"The Unanticipated Phenomenology of the Blazar PKS 2131-021: A Unique Supermassive Black Hole Binary Candidate" (2022) published in The Astrophysical Journal Letters
"Probing the Innermost Regions of AGN Jets and Their Magnetic Fields with RadioAstron. V. Space and Ground Millimeter-VLBI Imaging of OJ 287" (2022) published by DIGITAL.CSIC (Spanish National Research Council (CSIC))
"The complex variability of blazars: time-scales and periodicity analysis in S4 0954+65" (2021) published in Monthly Notices of the Royal Astronomical Society

The scientist frequently collaborates with other researchers in their field. Notable co-authors include:

A. Lähteenmäki
J. Tammi
T. Hovatta
S. Kiehlmann
A. C. S. Readhead

Best Publications

Planck early results. XV. Spectral energy distributions and radio continuum spectra of northern extragalactic radio sources

J. Aatrokoski;P. A. R. Ade;N. Aghanim;H. D. Aller

3077
Citations
Planck 2015 results. I. Overview of products and scientific results

R. Adam;P. A. R. Ade;N. Aghanim

1083
Citations
The inner jet of an active galactic nucleus as revealed by a radio-to-γ-ray outburst

Alan P. Marscher;Svetlana G. Jorstad;Svetlana G. Jorstad;Francesca D. D'Arcangelo;Paul S. Smith

863
Citations
Introducing the CTA concept

B. S. Acharya;M. Actis;T. Aghajani;G. Agnetta

855
Citations
The Alpha Magnetic Spectrometer (AMS)on the International Space Station : Part I - results from the test flight on the space shuttle

M. Aguilar;J. Alcaraz;B. Alpat;G. Ambrosi;G. Ambrosi

688
Citations
Doppler factors, Lorentz factors and viewing angles for quasars, BL Lacertae objects and radio galaxies

Talvikki Hovatta;Esko Valtaoja;Merja Tornikoski;Anne Lähteenmäki

576
Citations
Probing the Inner Jet of the Quasar PKS 1510?089 with Multi-Waveband Monitoring During Strong Gamma-Ray Activity

Alan P. Marscher;Svetlana G. Jorstad;Svetlana G. Jorstad;Valeri M. Larionov;Valeri M. Larionov;Margo F. Aller

568
Citations
Science with the Cherenkov Telescope Array

B.S. Acharya;I. Agudo;I. Al Samarai

498
Citations
Cosmic-ray positron fraction measurement from 1 to 30 GeV with AMS-01

M. Aguilar;J. Alcaraz;J. Allaby;B. Alpat

427
Citations
Leptons in near earth orbit

J. Alcaraz;B. Alpat;G. Ambrosi;H. Anderhub

410
Citations
Fifteen years monitoring of extragalactic radio sources at 22, 37 and 87 GHz

H. Terasranta;M. Tornikoski;E. Valtaoja;S. Urpo

382
Citations
Multiwavelength Observations of a Dramatic High-Energy Flare in the Blazar 3C 279

A. E. Wehrle;E. Pian;C. M. Urry;L. Maraschi

349
Citations
Planck 2015 results. XXVI. The Second Planck Catalogue of Compact Sources

P. A. R. Ade;N. Aghanim;F. Argüeso

320
Citations
Simultaneous Planck, Swift, and Fermi observations of X-ray and gamma-ray selected blazars

P. Giommi;G. Polenta;A. Lahteenmaki;D. J. Thompson

319
Citations
Spectral energy distributions of a large sample of BL Lacertae objects

Elina Nieppola;Merja Tornikoski;Esko Valtaoja;Esko Valtaoja

311
Citations
Insights into the high-energy γ-ray emission of Markarian 501 from extensive multifrequency observations in the Fermi era

A. A. Abdo;A. A. Abdo;Markus Ackermann;Marco Ajello;A. Allafort

298
Citations
Location of gamma-ray Flare Emission in the Jet of the BL Lacertae Object OJ287 more than 14pc from the Central Engine

Ivan Agudo;Svetlana G. Jorstad;Alan P. Marscher;Valeri M. Larionov

298
Citations
FLARING BEHAVIOR OF THE QUASAR 3C 454.3 ACROSS THE ELECTROMAGNETIC SPECTRUM

Svetlana G. Jorstad;Svetlana G. Jorstad;Alan P. Marscher;Valeri M. Larionov;Valeri M. Larionov;Iván Agudo

276
Citations
Helium in near Earth orbit

J. Alcaraz;B. Alpat;G. Ambrosi;H. Anderhub

276
Citations
Location of γ-ray Flare Emission in the Jet of the BL Lacertae Object OJ287 More than 14 pc from the Central Engine

Iván Agudo;Svetlana G. Jorstad;Svetlana G. Jorstad;Alan P. Marscher;Valeri M. Larionov;Valeri M. Larionov

267
Citations