Tag Archive for 'Cepheus A'

Ammonia gas infalling into an accretion disk feeding the protostar HW2. Image credit: NSF / AUI / NSF / NRAO / B. Saxton.

New Observations Shed More Light on Formation of Massive Stars

May 6, 2025 by News Staff

Astronomers using NSF’s Very Large Array (VLA) have spotted the huge flow of gas near HW2 — a massive protostar located 2,283 light-years away...

An artist’s conception of Cep A HW2, showing a wide-angle wind originating close to the star and an accretion disk, with a much narrower jet farther away. Image credit: Bill Saxton, NRAO, AUI & NSF.

VLA Focuses on Inner Region of Massive Protostellar Jet

Jun 3, 2021 by News Staff

Astronomers using NSF’s Karl G. Jansky Very Large Array (VLA) have observed the fast-moving jet of material ejected by Cep A HW2, a massive protostar...