activity
20122026
most citedMagnetic field and wind of Kappa Ceti: towards the planetary habitability of the young Sun when life arose on Earth

90 citations · 152 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.SR2026

Multiwavelength Campaign Observations of a Young Solar-type Star, EK Draconis. III. Comparison between Starspot Mapping, Zeeman Doppler Imaging, and Multiwavelength Variability

Kai Ikuta, Kosuke Namekata, Pascal Petit +12

Recent simultaneous multiwavelength observations of a nearby young solar-type star EK Dra in the optical, H spectrum, and X-ray, have provided evidence for stellar prominence er…

astro-ph.SR2024

Multiwavelength Campaign Observations of a Young Solar-type Star, EK Draconis. II. Understanding Prominence Eruption through Data-Driven Modeling and Observed Magnetic Environment

Kosuke Namekata, Kai Ikuta, Pascal Petit +15

EK Draconis, a nearby young solar-type star (G1.5V, 50-120 Myr), is known as one of the best proxies for inferring the environmental conditions of the young Sun. The star frequentl…

astro-ph.EP2024

Colorado Ultraviolet Transit Experiment Near-Ultraviolet Transmission Spectroscopy of the Ultra-hot Jupiter KELT-9b

Arika Egan, Kevin France, Aickara Gopinathan Sreejith +9

We present new near-ultraviolet (NUV, = 2479 3306 ) transmission spectroscopy of KELT-9b, the hottest known exoplanet, obtained with the Colorado Ultraviolet Transit Exp…

astro-ph.SR2016★ 90 cited

Magnetic field and wind of Kappa Ceti: towards the planetary habitability of the young Sun when life arose on Earth

J. -D. do Nascimento, A. A. Vidotto, P. Petit C. Folsom +8

We report magnetic field measurements for Kappa1~Cet, a proxy of the young Sun when life arose on Earth. We carry out an analysis of the magnetic properties determined from spectro…

astro-ph.SR2014★ 61 cited

Variable magnetic field geometry of the young sun HN Peg (HD 206860)

S. Boro Saikia, S. V. Jeffers, P. Petit +3

The large-scale magnetic field of solar-type stars reconstructed from their spectropolarimetric observations provide important insight into their underlying dynamo processes.We aim…

astro-ph.SR2013★ 1 cited

High-resolution spectropolarimetric of k Cet: A proxy for the young Sun

J. D. do Nascimento, P. Petit, S. Marsden +6

Among the solar proxies studied in the Sun in Time k Cet (HD 20630) stands out as potentially having a mass very close to solar and a young age. On this study, we monitored the mag…

astro-ph.SR2012

Magnetic Field and Activity of the Single Late-type Giant Beta Ceti

S. Tsvetkova, M. Auriere, R. Konstantinova-Antova +3

We present the behavior of the magnetic field and activity indicators of the single late-type giant Beta Ceti in the period June 19, 2010 - December 14, 2010. We used spectropolari…