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researcher

K. Helgason

19 papers hereh-index 14488 citations26 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author6
  • middle author7
  • last author3

Across the 16 of 19 papers where every author was matched, so the position is known.

fields
  • astro-ph.CO15
  • astro-ph.GA2
  • astro-ph.HE2

identity via Semantic Scholar / OpenAlex

activity
20122019
most citedA new measurement of the Hubble constant and matter content of the Universe using extragalactic background light γ-ray attenuation

90 citations · 577 across the 19 of their papers we have counts for

collaborators
Showing 2019Show all

3 papers · 1 filter

astro-ph.CO2019★ 3 cited

Populations behind the source-subtracted cosmic infrared background anisotropies

A. Kashlinsky, R. G. Arendt, M. Ashby +27

While the upcoming telescopes will reveal correspondingly fainter, more distant galaxies, a question will persist: what more is there that these telescopes cannot see? One answer i…

astro-ph.HE2019★ 54 cited

A GeV-TeV Measurement of the Extragalactic Background Light

Abhishek Desai, Kári Helgason, Marco Ajello +4

The Extragalactic Background Light (EBL) can be probed via the absorption imprint it leaves in the spectra of gamma-ray sources (γγ→e−e+). We recently developed a de…

astro-ph.CO2019★ 90 cited

A new measurement of the Hubble constant and matter content of the Universe using extragalactic background light γ-ray attenuation

Alberto Domínguez, Radoslaw Wojtak, Justin Finke +7

The Hubble constant H0​ and matter density Ωm​ of the Universe are measured using the latest γ-ray attenuation results from Fermi-LAT and Cherenkov telescopes. This metho…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.