Planet HU Aqr(AB) c
| Name | HU Aqr(AB) c | |
| Discovered in | 2011 | |
| M × sin i | 5.9 ± 0.1 MJ | |
| Semi-major axis | 6.18 AU |  |
| Orbital period | 5646 ± 8 days | |
| Eccentricity | 0.29 ± 0.03 | |
| ω | 351 ± 1 | |
| Tperi | 2.45005e+06 ± 7 | |
| Radius | — | |
| Inclination | — | |
| Update | May 22, 2012 | |
| Detection method | pulsar | |
| Molecules detected | — |
Remarks
21 May 2012: A previous orbital solution for the timing variations of the eclipses of HU Aqr(AB) led to two planets (Qian et al. 2011). A re-analysis by Gozdziewski et al. (2012), based on new data concludes that a better fit is obtained by a single circumbinary planet, here designated as HU Aqr(AB)b.02 Dec 2011: Planet validated by new data fitting (Hinse et al. 2012)
13 Oct 2011: The planet parameters result from one of the models by Wittenmyer et al. (2011). According to these authors, "the improved orbital parameters correspond to planets that are dynamically unstable on unfeasibly short timescales (of order 104 years or less). Given these results, the observed signal might in fact be the result of the intrinsic properties of the eclipsing polar".
Star
| Name | HU Aqr(AB) | |
| Distance | — | |
| Spectral type | Catac. var. | |
| Apparent magnitude V | 15.0 | |
| Mass | 1 MSun | |
| Age | Gyr | |
| Effective temperature | K | |
| Radius | RSun | |
| Metallicity [Fe/H] | ||
| RA2000 | 21:07:58.0 | |
| Dec2000 | -05:17:41 | |
| Planetary system | 2 planets |
More data
- Simbad
- Most recent references (ADS)
Related publications
On the HU Aquarii planetary system hypothesis
Aug. 23, 2012
GOZDZDIEWSKI K., NASiIROGLU O., SLOWIKOWSKA A., BEUERMANN K., KANBACH G. & 9 additional authors
MNRAS, 425, 930
paper arxiv
A Uniformly Derived Catalogue of Exoplanets from Radial Velocities
Feb. 10, 2012
HOLLIS M., BALAN S., LEVER G. & LAHAV O.
MNRAS
arxiv
The Curious Case of HU Aquarii - Dynamically Testing Proposed Planetary Systems
Jan. 30, 2012
HORNER J., WITTENMYER R., MARSCHALL J., TINNEY Ch. & BUTTERS O.
arxiv
New Light-Travel Time Models and Orbital Stability Study of the Proposed Planetary System HU Aquarii
Jan. 20, 2012
HINSE T., LEE J., GOZDZIEWSKI K., HAGHIGHIPOUR N., LEE Ch.-U. & SCULLION E.
MNRAS
paper arxiv
Revisiting the proposed planetary system orbiting the eclipsing polar HU Aquarii
Jan. 16, 2012
WITTENMYER R., HORNER J., MARSCHALL J., BUTTERS O. & TINNEY Ch.
MNRAS, 419, 3258
paper arxiv
The Exoplanet Handbook
May 22, 2012
Michael Perryman
Content
Content and Chapter 5
A dynamical analysis of the proposed HU Aquarii planetary system
Aug. 31, 2011
HORNER J., MARSCHALL J., WITTENMYER R. & TINNEY Ch.
MNRAS, 416, L11
paper arxiv
Defining and cataloging exoplanets: The exoplanet.eu database
Aug. 1, 2011
SCHNEIDER J., DEDIEU C., LE SIDANER P., SAVALLE R. & ZOLOTUKHIN I.
Astron. & Astrophys., 532, A79
paper arxiv