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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 astro-ph.GAShow all

2 papers · 1 filter

astro-ph.GA2018★ 21 cited

The SPLASH and Chandra COSMOS Legacy Survey: the Cross Power Between Near-Infrared and X-Ray Background Fluctuations

Yanxia Li, Nico Cappelluti, Richard G. Arendt +3

We study the source-subtracted near-infrared and X-ray background fluctuations of the COSMOS field using data from the Spitzer SPLASH program (∼1272 hours) and Chandra COSMOS…

astro-ph.GA2016★ 9 cited

AKARI near-infrared background fluctuations arise from normal galaxy populations

Kári Helgason, Eiichiro Komatsu

We show that measurements of the fluctuations in the near-infrared background (NIRB) from the AKARI satellite can be explained by faint galaxy populations at low redshifts. We demo…

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