activity
20012025
most citedA Mexican Hat with holes: calculating low resolution power spectra from data with gaps

76 citations · 154 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.EP2025

Blind search for activity-sensitive lines in the near-infrared using HARPS and NIRPS observations of Proxima and Gl 581

João Gomes da Silva, Elisa Delgado-Mena, Nuno C. Santos +145

Stellar activity variability is one of the main obstacles to the detection of Earth-like planets using the RV method. The aim of this work is to measure the effect of activity in t…

astro-ph.GA2025★ 1 cited

Dense clumps survive in the vicinity of R136 in 30 Doradus

M. T. Valdivia-Mena, M. Rubio, V. M. Kalari +5

Context: The young massive cluster R136 at the center of 30 Doradus (30 Dor) in the Large Magellanic Cloud (LMC) generates a cavity in the surrounding molecular cloud. However, the…

astro-ph.GA2025

Euclid: Galaxy morphology and photometry from bulge-disc decomposition of Early Release Observations

L. Quilley, V. de Lapparent, M. Bolzonella +168

The background galaxies in Euclid ERO images of the Perseus cluster make up a remarkable sample in its combination of 0.57 deg area, 25.3 and 23.2 AB mag depth, as well as 0.1"…

astro-ph.SR2021★ 29 cited

The HD 98800 quadruple pre-main sequence system. Towards full orbital characterisation using long-baseline infrared interferometry

S. Zúñiga-Fernández, J. Olofsson, A. Bayo +8

HD 98800 is a young ( Myr old) and nearby ( pc) quadruple system, composed of two spectroscopic binaries orbiting around each other (AaAb and BaBb), with a gas-rich…

astro-ph.SR2021★ 13 cited

Sr and Ba abundance determinations: comparing machine-learning with star-by-star analyses -- High-resolution re-analysis of suspected LAMOST barium stars

D. Karinkuzhi, S. Van Eck, A. Jorissen +6

A new large sample of 895 s-process-rich candidates out of 454180 giant stars surveyed by LAMOST at low spectral resolution (R ~ 1800) has been reported by Norfolk et al. (2019; he…

astro-ph.CO2012★ 76 cited

A Mexican Hat with holes: calculating low resolution power spectra from data with gaps

P. Arevalo, E. Churazov, I. Zhuravleva +2

A simple method for calculating a low-resolution power spectrum from data with gaps is described. The method is a modification of the -variance method previously described by St…