The CHARA Array is a six 1 m telescope optical/IR interferometric array located on Mount
Wilson, California, designed and built by the Center for High Angular Resolution Astronomy …

Young stars are surrounded by a circumstellar disk of gas and dust, within which planet
formation can occur. Gravitational forces in multiple star systems can disrupt the disk …

Much of the progress in astronomy has been driven by instrumental developments, from the
first telescopes to fiber fed spectrographs. In this review, we describe the field of …

Spatially resolving the surfaces of nearby stars promises to advance our knowledge of
stellar physics. Using optical long-baseline interferometry, we constructed a near-infrared …

We present the results of long-baseline optical interferometry observations using the
Precision Astronomical Visual Observations (PAVO) beam combiner at the Center for High …

Sunspots are cool areas caused by strong surface magnetic fields that inhibit convection,.
Moreover, strong magnetic fields can alter the average atmospheric structure, degrading our …

Near-infrared interferometers have recently imaged a number of rapidly rotating A-type stars,
finding levels of gravity darkening inconsistent with theoretical expectations. Here, we …

We present submilliarcsecond resolution imaging and modeling of two nearby rapid rotators
α Cephei and α Ophiuchi, obtained with the CHARA array—the largest optical/IR …

The 30 yr orbit of the Cepheid Polaris has been followed with observations by the Center for
High Angular Resolution Astronomy (CHARA) Array from 2016 through 2021. An additional …

Context. Long-baseline interferometry is an important technique to spatially resolve binary or
multiple systems in close orbits. By combining several telescopes together and spectrally …