Observation of a Burst of High-Velocity Dust from α Herculis

Details Observation of a Burst of High-Velocity Dust from α Herculis Observation of a Burst of High-Velocity Dust from α Herculis

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007apj...658l.103t&link_type=abstract

The Astrophysical Journal, Volume 658, Issue 2, pp. L103-L106.

Astronomy and Astrophysics

Astronomy

1

Infrared: Stars, Stars: Individual: Constellation Name: Α Herculis, Stars: Late-Type, Stars: Winds, Outflows, Techniques: Interferometric

Scientific paper

Interferometric observations of α Herculis at a wavelength of 11.15 μm over the period 1989-2004 show large visibility variations. These variations are interpreted as an ejection of approximately 10-6 Msolar of material in 1990 that has subsequently expanded and dissipated. The expansion rate is approximately 75 km s-1, much larger than previous observations. No substantial material has been emitted during the subsequent 14 years.

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