SIMBAD references

2002A&A...389..228R - Astronomy and Astrophysics, volume 389, 228-238 (2002/7-1)

High-resolution X-ray spectroscopy of Procyon by Chandra and XMM-Newton.

RAASSEN A.J.J., MEWE R., AUDARD M., GUEDEL M., BEHAR E., KAASTRA J.S., VAN DER MEER R.L.J., FOLEY C.R. and NESS J.-U.

Abstract (from CDS):

We report the analysis of the high-resolution soft X-ray spectrum of the nearby F-type star Procyon in the wavelength range from 5 to 175Å obtained with the Low Energy Transmission Grating Spectrometer (LETGS) on board Chandra and with the Reflection Grating Spectrometers (RGS) and the EPIC-MOS CCD spectrometers on board XMM-Newton. Line fluxes have been measured separately for the RGS and LETGS. Spectra have been fitted globally to obtain self-consistent temperatures, emission measures, and abundances. The total volume emission measure is ∼4.1x1050cm–3 with a peak between 1 and 3MK. No indications for a dominant hot component (T>4MK) were found. We present additional evidence for the lack of a solar-type FIP-effect, confirming earlier EUVE results.

Abstract Copyright:

Journal keyword(s): stars: individual: Procyon, alpha Canis Minoris - stars: coronae - stars: late-type - stars: activity - X-rays: stars

Simbad objects: 1

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