References
SHOWING 1-7 OF 7 REFERENCES
First AMBER/VLTI Science
- Physics
- 2007
The AMBER instrument installed at the Very Large Telescope (VLT) combines the beams from three telescopes to produce spectrally dispersed interference fringes with milli-arcsecond angular scales in…
Imaging the Surface of Altair
- PhysicsScience
- 2007
Using optical long-baseline interferometry, a near-infrared image of the rapidly rotating hot star Altair is constructed with a resolution of <1 milliarcsecond that clearly reveals the strong effect of gravity darkening on the highly distorted stellar photosphere.
On the Structure and Properties of Differentially Rotating, Main-Sequence Stars in the 1-2 M☉ Range
- Physics
- 2007
We present models for chemically homogeneous, differentially rotating, main-sequence stars with masses in the range 1-2 M☉. The models were constructed using a code based on a reformulation of the…
First Results from the CHARA Array. VII. Long-Baseline Interferometric Measurements of Vega Consistent with a Pole-On, Rapidly Rotating Star
- Physics
- 2006
We have obtained high-precision interferometric measurements of Vega with the CHARA Array and FLUOR beam combiner in the K’ band at projected baselines between 103m and 273m. The measured visibility…
Vega is a rapidly rotating star
- PhysicsNature
- 2006
Optical interferometric observations show that Vega has the asymmetric brightness distribution of the bright, slightly offset polar axis of a star rotating at 93 per cent of its breakup speed, which leads to the prediction of an excess of near-infrared emission compared to the visible, in agreement with observations.
Constraints on the Geometry of Circumstellar Envelopes: Optical Interferometric and Spectropolarimetric Observations of Seven Be Stars
- Physics
- 1997
We have obtained contemporaneous optical interferometry and spectropolarimetry of seven Be stars. The interferometry was done using both continuum and narrow Ha line -lters to observe the circumstel-…