MPIfR: Spiral Arms: Not Just in Galaxies
Posted: Fri Sep 30, 2016 4:02 pm
Spiral Arms: Not Just in Galaxies
Max Planck Institute for Radio Astronomy | 2016 Sep 29
Spiral Arms Embrace Young Star
ALMA | NRAO | ESO | NAOJ | 2016 Sep 29
Protostars Make Waves First, Planets Later
Rice University | 2016 Sep 29
Spiral Density Waves in a Young Protoplanetary Disk - Laura M. Pérez et al
Max Planck Institute for Radio Astronomy | 2016 Sep 29
Protoplanetary disk around a young star exhibits spiral structure
Astronomers have found a distinct structure involving spiral arms in the reservoir of gas and dust disk surrounding the young star Elias 2-27. While spiral features have been observed on the surfaces of protoplanetary disks, these new observations, from the ALMA observatory in Chile, are the first to reveal that such spirals occur at the disk midplane, the region where planet formation takes place. This is of importance for planet formation: structures such as these could either indicate the presence of a newly formed planet, or else create the necessary conditions for a planet to form. As such, these results are a crucial step towards a better understanding how planetary systems like our Solar system came into being.
An international team led by Laura Pérez, an Alexander von Humboldt Research Fellow from the Max Planck Institute for Radio Astronomy (MPIfR) in Bonn, also including researchers from the Max Planck Institute for Astronomy (MPIA) in Heidelberg, has obtained the first image of a spiral structure seen in thermal dust emission coming from a protoplanetary disk, the potential birthplace of a new solar system. Such structures are thought to play a key role in allowing planets to form around young stars. The researchers used the international observatory ALMA to image the disk around the young star Elias 2-27, in the constellation Ophiuchus, at a distance of about 450 light-years from Earth. ...
Spiral Arms Embrace Young Star
ALMA | NRAO | ESO | NAOJ | 2016 Sep 29
Protostars Make Waves First, Planets Later
Rice University | 2016 Sep 29
Spiral Density Waves in a Young Protoplanetary Disk - Laura M. Pérez et al
- Science 353(6307):1519 (30 Sep 2016) DOI: 10.1126/science.aaf8296
- arXiv.org > astro-ph > arXiv:1610.05139 > 17 Oct 2016