2006A&A...445..673S


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST01:29:16

2006A&A...445..673S - Astronomy and Astrophysics, volume 445, 673-680 (2006/1-2)

A compact flare eclipsed in the corona of SV Camelopardalis.

SANZ-FORCADA J., FAVATA F. and MICELA G.

Abstract (from CDS):

The eclipsing active binary SV Cam (G0V/K6V, P_ orb_=0.593071 d) was observed with XMM-Newton during two campaigns in 2001 and 2003. No eclipses in the quiescent emission are clearly identified, but a flare was eclipsed during the 2001 campaign, allowing us to strongly constrain, from purely geometrical considerations, the position and size of the event: the flare is compact and it is formed at a latitude below 65deg. The size, temperature and Emission Measure of the flare imply an electron density of logne(cm–3)∼10.6-13.3 and a magnetic field of ∼65-1400G in order to confine the plasma, consistent with the measurements that are obtained from density-sensitive line ratios in other similar active stars. Average emission seems to come from either extended or polar regions because of lack of eclipses. The Emission Measure Distribution, coronal abundances and characteristics of variability are very similar to other active stars such as AB Dor (K1V).

Abstract Copyright:

Journal keyword(s): stars: coronae - stars: abundances - stars: individual: SV Cam - stars: late-type - X-rays: stars - binaries: eclipsing

VizieR on-line data: <Available at CDS (J/A+A/445/673): table4.dat>

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 * alf Aur SB* 05 16 41.35871 +45 59 52.7693 1.33 0.88 0.08 -0.52 -0.96 G3III: 1137 0
2 V* AB Dor TT* 05 28 44.8916324761 -65 26 55.289846904 8.259 7.856 6.999 6.496 5.993 K0V 931 0
3 V* SV Cam Al* 06 41 19.0820839974 +82 16 02.435978987       9.0   G2IV-V 346 0
4 BD+20 2465 Er* 10 19 36.2808024653 +19 52 12.014037746   10.82 9.52 9.19   M4Vae 1146 0
5 V* VW Cep EB* 20 37 21.6248469581 +75 36 01.889162699   8.13   7.0   G8V+K0V 523 0
6 V* AT Mic Er* 20 41 51.15925 -32 26 06.8283 12.753 11.909 10.343 9.098 7.383 M4.5Ve+M4.5Ve 325 0

    Equat.    Gal    SGal    Ecl

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2020.07.13-01:29:16

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