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researcher

S. Sirera

8 papers hereh-index 315 citations9 works total

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

author position
  • sole author1
  • first author3
  • middle author2
  • last author2

Across the 8 of 8 papers where every author was matched, so the position is known.

fields
  • gr-qc6
  • astro-ph.CO2

identity via Semantic Scholar / OpenAlex

activity
20232026
most citedTesting the Speed of Gravity with Black Hole Ringdown

17 citations · 18 across the 8 of their papers we have counts for

collaborators
Showing astro-ph.COShow all

2 papers · 1 filter

astro-ph.CO2026

Rolling Galileons: Evolving Braiding Strength for Viable Dark Energy

James Hallam, Krishna Naidoo, Sergi Sirera +1

Motivated by growing observational indications that dark energy may be dynamical, we introduce Rolling Galileon gravity: a minimal shift-symmetry-breaking extension of the cubic Ga…

astro-ph.CO2026★ 1 cited

Constraints on Horndeski gravity with phantom crossing

Krishna Naidoo, James Hallam, Tessa Baker +1

Gravity models in which the dark energy equation of state crosses w=−1, also known as the phantom divide, have received extensive interest due to recent analyses favouring this b…

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