X-ray rotational modulation of a supersaturated star in IC 2391

6533b822fe1ef96bd127d740

RESEARCH PRODUCT

X-ray rotational modulation of a supersaturated star in IC 2391

A. Marino Giovanni Peres Giuseppina Micela S. Sciortino

subject

Physics Rotation period Supersaturation Astrophysics::High Energy Astrophysical Phenomena Astrophysics (astro-ph)X-ray FOS: Physical sciences Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics EPIC Star (graph theory)Astrophysics Luminosity Space and Planetary Science Modulation Astrophysics::Solar and Stellar Astrophysics Astrophysics::Galaxy Astrophysics

description

We present evidence of X-ray rotational modulation on VXR45, a young fast rotator star, member of IC 2391. It is a dG9 spectral type star whose rotational period and X-ray luminosity make it a supersaturated star. Our X-ray observation, made with EPIC/PN on XMM-Newton, covers about two photometric rotational periods. The detection of rotational modulation implies the presence of structural inhomogeneities. Possible interpretations are presented and discussed.

year	journal	country	edition	language
2003-07-09	Astronomy & Astrophysics

https://doi.org/10.1051/0004-6361:20031053

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