2006ApJ...636.1020M

Query : 2006ApJ...636.1020M

2006ApJ...636.1020M - Astrophys. J., 636, 1020-1032 (2006/January-2)

PHASES differential astrometry and iodine cell radial velocities of the κ Pegasi triple star system.

MUTERSPAUGH M.W., LANE B.F., KONACKI M., WIKTOROWICZ S., BURKE B.F., COLAVITA M.M., KULKARNI S.R. and SHAO M.

Abstract (from CDS):

κ Pegasi is a well-known, nearby triple star system. It consists of a ``wide'' pair with semimajor axis=235 mas, one component of which is a single-line spectroscopic binary (semimajor axis= 2.5 mas). Using high-precision differential astrometry and radial velocity observations, the masses for all three components are determined and the relative inclination between the wide and narrow pairs' orbits is found to be 43°.8±3°.0, just over the threshold for the three-body Kozai resonance. The system distance is determined to be 34.60±0.21 pc and is consistent with trigonometric parallax measurements.

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Journal keyword(s): Astrometry - Stars: Binaries: Close - Stars: Binaries: Visual - Stars: Distances - stars: individual (κ Pegasi) - Techniques: Interferometric

VizieR on-line data: <Available at CDS (J/ApJ/636/1020): table1.dat table2.dat table3.dat table4.dat>

Simbad objects: 3

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Number of rows : 3
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 * 20 Per ** 02 53 42.6170816261 +38 20 14.852045941   5.742 5.343     F6V 144 0
2 V* V819 Her SB* 17 21 43.6105947240 +39 58 28.805498832   6.222 5.561     F7V 184 0
3 * kap Peg ** 21 44 38.73522 +25 38 42.1359   4.553 4.135     F5V 249 1

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