2014ApJ...780..140W

Query : 2014ApJ...780..140W

2014ApJ...780..140W - Astrophys. J., 780, 140 (2014/January-2)

A detailed analysis of the HD 73526 2:1 resonant planetary system.

WITTENMYER R.A., TAN X., LEE M.H., HORNER J., TINNEY C.G., BUTLER R.P., SALTER G.S., CARTER B.D., JONES H.R.A., O'TOOLE S.J., BAILEY J., WRIGHT D., CRANE J.D., SCHECTMAN S.A., ARRIAGADA P., THOMPSON I., MINNITI D. and DIAZ M.

Abstract (from CDS):

We present six years of new radial velocity data from the Anglo-Australian and Magellan Telescopes on the HD 73526 2:1 resonant planetary system. We investigate both Keplerian and dynamical (interacting) fits to these data, yielding four possible configurations for the system. The new data now show that both resonance angles are librating, with amplitudes of 40° and 60°, respectively. We then perform long-term dynamical stability tests to differentiate these solutions, which only differ significantly in the masses of the planets. We show that while there is no clearly preferred system inclination, the dynamical fit with i = 90° provides the best combination of goodness-of-fit and long-term dynamical stability.

Abstract Copyright: ∼

Journal keyword(s): methods: numerical - planets and satellites: dynamical evolution and stability - planets and satellites: individual: HD 73526 - techniques: radial velocities

Simbad objects: 8

Full paper

View the references in ADS

Number of rows : 8

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	HD 73526b	Pl	08 37 16.4833548528	-41 19 08.790456324						~	56	1
2	HD 73526c	Pl	08 37 16.4833548528	-41 19 08.790456324						~	45	1
3	HD 73526	PM*	08 37 16.4833548528	-41 19 08.790456324		9.69	9.00			G6V	206	2
4	HD 82943	PM*	09 34 50.7353072232	-12 07 46.369202196		7.17	6.53			F9VFe+0.5	498	2
5	HD 128311	BY*	14 36 00.5602765558	+09 44 47.454573266	9.232	8.441	7.446	6.895	6.425	K3V	338	1
6	HD 155358	PM*	17 09 34.6176428924	+33 21 21.085565784				7.0		G0	175	1
7	HD 200964	PM*	21 06 39.8422794792	+03 48 11.226709188		7.379	6.487			G8IV	101	1
8	BD-15 6290	BY*	22 53 16.7325836486	-14 15 49.304052185	12.928	11.749	10.192	9.013	7.462	M3.5V	1106	1

To bookmark this query, right click on this link: simbad:objects in 2014ApJ...780..140W and select 'bookmark this link' or equivalent in the popup menu