Eskil Varenius

Senior Research Engineer at Chalmers, Space, Earth and Environment, Onsala Space Observatory, Space Geodesy and Geodynamics

Eskil Varenius is a senior research engineer in the group Space geodesy and geodynamics. He uses very long baseline interferometry (VLBI) techniques to relate positions on Earth to far-away galaxies. VLBI observations are used to study geodynamical processes such as plate tectonics, Earth rotation, and land uplift, but also to obtain sharp images of astronomical objects such as galaxies, supernovae and black holes. In addition to a fundamental understanding of space, Earth and the environment, VLBI results are used in other research areas which affect society, such as climate modeling and navigation.

Source: chalmers.se

Showing 25 publications

2019

The population of SNe/SNRs in the starburst galaxy Arp 220 - A self-consistent analysis of 20 years of VLBI monitoring

Eskil Varenius, John Conway, Fabien Batejat et al
Astronomy and Astrophysics. Vol. 623
Journal article
2019

The hidden heart of the luminous infrared galaxy IC 860: I. A molecular inflow feeding opaque, extreme nuclear activity

Susanne Aalto, Sebastien Muller, Sabine König et al
Astronomy and Astrophysics. Vol. 627
Journal article
2018

Sub-arcsecond imaging of Arp 299-A at 150 MHz with LOFAR: Evidence for a starburst-driven outflow

Naim Ramirez-Olivencia, Eskil Varenius, M.A. Pérez-Torres et al
Astronomy and Astrophysics. Vol. 610
Journal article
2018

Major impact from a minor merger The extraordinary hot molecular gas flow in the Eye of the NGC 4194 Medusa galaxy

Sabine König, Susanne Aalto, Sebastien Muller et al
Astronomy and Astrophysics. Vol. 615
Journal article
2018

A search for radio emission from exoplanets around evolved stars

Eamon O Gorman, C. P. Coughlan, Wouter Vlemmings et al
Astronomy and Astrophysics. Vol. 612
Journal article
2018

A dust-enshrouded tidal disruption event with a resolved radio jet in a galaxy merger

S. Mattila, M.A. Pérez-Torres, A. Efstathiou et al
Science. Vol. 361 (6401), p. 482-485
Journal article
2017

Methanol masers reveal the magnetic field of the high-mass protostar IRAS 18089-1732

Daria Dall` Olio, Wouter Vlemmings, G. Surcis et al
Astronomy and Astrophysics. Vol. 607
Journal article
2017

gamma-Ray emission from Arp 220: indications of an active galactic nucleus

T. M. Yoast-Hull, J. S. Gallagher III, Susanne Aalto et al
Monthly Notices of the Royal Astronomical Society. Vol. 469 (1), p. L89-L93
Journal article
2017

The LOFAR Two-metre Sky Survey: I. Survey description and preliminary data release

T. W. Shimwell, H. Rottgering, P. N. Best et al
Astronomy and Astrophysics. Vol. 598, p. Art no A104-
Journal article
2017

Atomic hydrogen bridge fueling NGC 4418 with gas from VV 655

Eskil Varenius, Francesco Costagliola, H. R. Klockner et al
Astronomy and Astrophysics. Vol. 607
Journal article
2016

Hard and Software Tools for the Education of Geodetic VLBI

Thomas Hobiger, Rüdiger Haas, Eskil Varenius
IVS 2016 General Meeting Proceedings "New Horizons with VGOS" (NASA/CP-2016-219016), p. 234-238
Conference contribution
2016

Subarcsecond international LOFAR radio images of Arp 220 at 150 MHz: A kpc-scale star forming disk surrounding nuclei with shocked outflows

Eskil Varenius, John Conway, Ivan Marti-Vidal et al
Astronomy and Astrophysics. Vol. 593, p. A86-
Journal article
2016

LOFAR VLBI studies at 55 MHz of 4C 43.15, a z=2.4 radio galaxy

L. K. Morabito, A. T. Deller, H. Rottgering et al
Monthly Notices of the Royal Astronomical Society. Vol. 461 (3), p. 2676-2687
Journal article
2016

Hard- and software tools for the education of Geodetic VLBI

Thomas Hobiger, Rüdiger Haas, Eskil Varenius
9th IVS General Meeting, March 2016, Johannesburg, South Africa
Conference poster
2016

LBCS: The LOFAR Long-Baseline Calibrator Survey

N. Jackson, A. Tagore, A. Deller et al
Astronomy and Astrophysics. Vol. 595, p. Art no A86-
Journal article
2016

LBCS: The LOFAR long baseline snapshot calibrator survey

J. Moldon, A. T. Deller, O. Wucknitz et al
Astronomy and Astrophysics. Vol. 574, p. Art. no. A73-
Journal article
2015

Subarcsecond international LOFAR radio images of the M82 nucleus at 118 MHz and 154 MHz

Eskil Varenius, John Conway, Ivan Marti-Vidal et al
Astronomy and Astrophysics. Vol. 574, p. Art. no. A114-
Journal article
2015

Diversity in extinction laws of Type Ia supernovae measured between 0.2 and 2 μm

R. Amanullah, J. Johansson, A. Goobar et al
Monthly Notices of the Royal Astronomical Society. Vol. 453 (3), p. 3300-3328
Journal article
2015

The LOFAR Multifrequency Snapshot Sky Survey (MSSS) I. Survey description and first results

G. H. Heald, R. F. Pizzo, E. Orru et al
Astronomy and Astrophysics. Vol. 582, p. 22-
Journal article
2014

EVN imaging of the LIRGI sample

Naim Ramirez-Olivencia, M.A. Pérez-Torres, Antxon Alberdi et al
Proceedings of Science. 12th European VLBI Network Symposium and Users Meeting, EVN 2014 ; Cagliari; Italy; 7 October 2014 through 10 October 2014. Vol. F113821, p. 009-
Conference contribution
2014

The LOFAR long baseline snapshot calibrator survey

J. Moldón, A. T. Deller, J. P. McKean et al
Proceedings of Science. 12th European VLBI Network Symposium and Users Meeting, EVN 2014 ; Cagliari; Italy; 7-10 October 2014. Vol. F113821, p. 097-
Conference contribution
2014

High-resolution radio imaging of galaxy nuclei

Eskil Varenius
Licentiate thesis
2014

The radio core structure of the luminous infrared galaxy NGC4418 A young clustered starburst revealed?

Eskil Varenius, John Conway, Ivan Marti-Vidal et al
Astronomy and Astrophysics. Vol. 566
Journal article
2014

Discovery of Carbon Radio Recombination Lines in M82

L. K. Morabito, J. B. R. Oonk, F. Salgado et al
Astrophysical Journal Letters. Vol. 795 (2), p. Art. no. L33-
Journal article

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