1999A&A...341..799Q

Query : 1999A&A...341..799Q

1999A&A...341..799Q - Astronomy and Astrophysics, volume 341799-802 (1999/1-3)

AU Serpentis and FG Hydrae: two contact binaries with sudden variations in their orbital periods.

QIAN S., LIU Q. and YANG Y.

Abstract (from CDS):

Many available published times of light minima of the two contact binaries AU Ser and FG Hya are collected and the changes in their orbital periods are analyzed. It is indicated that the orbital period of AU Ser shows a sudden decrease in the time interval of 1987-1988 and several period jumps are found in FG Hya. The connections between the period jumps and the variable O'Connell effects (asymmetries in the light curves) of the two contact binaries are also discussed.

Abstract Copyright: ∼

Journal keyword(s): stars: binaries: close - stars: individual: AU Ser - stars: individual: FG Hya

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* FG Hya SB* 08 27 03.9412969584 +03 30 52.329583548   10.62 10.04 9.544 9.401 G0 213 0
2 V* DF Hya SB* 08 55 02.2431702408 +06 05 37.584542040   11.45 10.80 10.621 10.27 G0 69 0
3 V* AG Vir SB* 12 01 03.5040338736 +13 00 30.005824428   8.78 8.52     A5V 173 0
4 V* TU Boo EB* 14 04 58.0474207248 +30 00 01.588156992   12.22 11.61 11.422 11.063 G3 84 0
5 V* AU Ser SB* 15 56 49.4686990368 +22 16 01.590650328   11.76 11.04 10.383 9.931 G4V 111 0

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