activity
20242026
most citedNIRPS and TESS reveal a peculiar system around the M dwarf TOI-756: A transiting sub-Neptune and a cold eccentric giant

5 citations · 21 across the 24 of their papers we have counts for

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astro-ph.SR2024

Precise and efficient modeling of stellar-activity-affected solar spectra using SOAP-GPU

Yinan Zhao, Xavier Dumusque, Michael Cretignier +4

One of the main obstacles in exoplanet detection when using the radial velocity (RV) technique is the presence of stellar activity signal induced by magnetic regions. In this conte…

astro-ph.EP2024

Radii, masses, and transit-timing variations of the three-planet system orbiting the naked-eye star TOI-396

A. Bonfanti, I. Amateis, D. Gandolfi +38

TOI-396 is an F6V star () orbited by three transiting planets. The orbital periods of the two innermost planets are close to the 5:3 commensurability ( d…

astro-ph.IM2024

The PLATO Mission

Heike Rauer, Conny Aerts, Juan Cabrera +842

PLATO (PLAnetary Transits and Oscillations of stars) is ESA's M3 mission designed to detect and characterise extrasolar planets and perform asteroseismic monitoring of a large numb…

astro-ph.EP2024

The GAPS programme at TNG LXIV: An inner eccentric sub-Neptune and an outer sub-Neptune-mass candidate around BD+00 444 (TOI-2443)

L. Naponiello, A. S. Bonomo, L. Mancini +25

We examined in depth the star BD+00 444 (GJ 105.5, TOI-2443; V = 9.5 mag; d = 23.9 pc), with the aim of characterizing and confirming the planetary nature of its small companion, t…

astro-ph.SR2024

Stellar surface information from the Ca II H&K lines -- II. Defining better activity proxies

M. Cretignier, N. C. Hara, A. G. M. Pietrow +6

In our former paper I, we showed on the Sun that different active regions possess unique intensity profiles on the Ca II H & K lines. We now extend the analysis by showing how thos…

astro-ph.EP2024

A sub-Earth-mass planet orbiting Barnard's star

J. I. Gonzalez Hernandez, A. Suarez Mascareno, A. M. Silva +37

Barnard's star is a primary target within the ESPRESSO guaranteed time observations (GTO) as it is the second closest neighbour to our Sun after the Centauri stellar system. W…