activity
20002026
most citedCSI 2264: Simultaneous optical and infrared light curves of young disk-bearing stars in NGC 2264 with CoRoT and Spitzer-- evidence for multiple origins of variability

411 citations · 4.8k across the 75 of their papers we have counts for

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Showing 2023Show all

10 papers · 1 filter

astro-ph.SR2023★ 28 cited

Monitoring the young planet host V1298 Tau with SPIRou: planetary system and evolving large-scale magnetic field

B. Finociety, J. -F. Donati, P. I. Cristofari +15

We report results of a spectropolarimetric monitoring of the young Sun-like star V1298~Tau based on data collected with the near-infrared spectropolarimeter SPIRou at the Canada-Fr…

astro-ph.SR2023★ 1 cited

Twenty-Five Years of Accretion onto the Classical T Tauri Star TW Hya

Gregory J. Herczeg, Yuguang Chen, Jean-Francois Donati +39

Accretion plays a central role in the physics that governs the evolution and dispersal of protoplanetary disks. The primary goal of this paper is to analyze the stability over time…

astro-ph.SR2023★ 6 cited

Star-disk interactions in the strongly accreting T Tauri Star S CrA N

H. Nowacki, E. Alecian, K. Perraut +11

Aims : We aimed at constraining the accretion-ejection phenomena around the strongly-accreting Northern component of the S CrA young binary system (S CrA N) by deriving its magneti…

astro-ph.SR2023

Magnetic fields & rotation periods of M dwarfs from SPIRou spectra

J. -F. Donati, L. T. Lehmann, P. I. Cristofari +17

We present near-infrared spectropolarimetric observations of a sample of 43 weakly- to moderately-active M dwarfs, carried with SPIRou at the Canada-France-Hawaii Telescope in the…

astro-ph.SR2023★ 35 cited

Monitoring the large-scale magnetic field of AD~Leo with SPIRou, ESPaDOnS and Narval. Toward a magnetic polarity reversal?

S. Bellotti, J. Morin, L. T. Lehmann +23

One manifestation of dynamo action on the Sun is the 22-yr magnetic cycle, exhibiting a polarity reversal and a periodic conversion between poloidal and toroidal fields. For M dwar…

astro-ph.SR2023★ 79 cited

The magnetic field and multiple planets of the young dwarf AU~Mic

J. -F. Donati, P. I. Cristofari, B. Finociety +25

In this paper we present an analysis of near-infrared spectropolarimetric and velocimetric data of the young M dwarf AU Mic, collected with SPIRou at the Canada-France-Hawaii teles…