99 Her
RA (J2000) | DEC (J2000) | Category | Spec Type | R band (mag) | Distance (pc) | Disk Major Axis " | Disk Diameter (AU) | Inclination (degrees) | Major axis PA | Reference | Resolution elements across | At ref. wavelength (microns) | # References |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 18 07 01.54 | +30 33 43.7 | Debris | F7+K4 | 4.7 | 15.6 | 15.4 | 240 | 50 | 80 | Kennedy et al. 2012 | 2.8 | 70 | 10 |
Notes:
Circumbinary polar ring
wider binary, misaligned with disk
References:
Smallwood, Jeremy L.; Franchini, Alessia; Chen, Cheng et al. 2020 MNRAS 494 487
Models the evolution of a circumbinary gas disk to a polar orientation
Martin, R. G., Lubow, S. H., 2017, ApJ, 835, 5
Material misaligned by only 20° to the binary orbital plane would evolve to become perpendicular
Montesinos, B., et al. 2016, A&A, 593, A51, 31
excess at 100 and 160 µm
Miranda, R., Lai, D., 2015, MNRAS, 452, 2396
method for computing Lindblad torques due to a binary potential on misaligned discs
Rodriguez, D. R., 2015, MNRAS, 449, 3160
gravitational influence of companion will accelerate collisional evolution: less readily detected
Li, D., Zhou, J., Zhang, H. 2014, MNRAS, 437, 3832
inner binary can significantly excite the eccentricity of polar configurations
Kennedy, G. et al. 2012, MNRAS, 421, 2264
Herschel images and dynamical model
Kennedy, G.M. et al. 2012 M.N.R.A.S. 426 2115
Koerner, D.W. et al. 2010 Ap.J. 710 26
Spitzer excess detection
Leconte, J. et al. 2010 Ap.J. 716 1551