We present and analyze a new M′ detection of the young exoplanet β Pictoris b from 2008 VLT/NaCo data at a separation of ≈4 AU and a high signal-to-noise rereduction of L′ data taken in 2009 December. Based on our orbital analysis, the planet's orbit is viewed almost perfectly edge-on (i ∼ 89deg) and has a Saturn-like semimajor axis of 9.50AU+3.93 AU - 1.7 AU. Intriguingly, the planet's orbit is aligned with the major axis of the outer disk (Ω ∼ 31deg) but is probably misaligned with the warp/inclined disk at 80 AU, often cited as a signpost for the planet's existence. Our results motivate new studies to clarify how β Pic b sculpts debris disk structures and whether a second planet is required to explain the warp/inclined disk.
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
- planetary systems
- stars: early-type
- stars: individual (β Pictoris)