Commission G1 Working Groups
Working Groups (WGs) are created to undertake certain well-defined
tasks for limited time periods. They usually have a small number of
members. There are currently over 60 IAU Working Groups.
Working Group on Active B Stars
on Active B Stars is currently associated with Commission 42
through Division G. This Working Group has over 130 members and it
has been active for over 33 years.
The Working Group on Active B Stars (formerly known as the Working
Group on Be Stars) has been in continuous operation since 1979. Its
primary goal is to promote and stimulate research and international
collaboration in the field of the active early-type (O and B) stars.
The original focus was on the classical Be stars, some of which are
in interacting binaries, however, their topics now include active
phenomena in B-type stars, including mass loss and accretion,
pulsations, rotation, magnetic fields, and binarity; as well as the
derivation of fundamental parameters for these objects.
The Be Star Newsletter is the official publication for this Working
WG on Maintenance of the Visual Double Star
on Maintenance of the Visual Double Star Database is currently
associated with Commission 26. See the
Working group mission statement. The primary duties of this
WG are the maintenance of the
Star Catalog and the
Sixth Catalog of
Orbits of Visual Binary Stars.
WG on Catalog of Orbital Elements of
Spectroscopic Binary Systems
on Catalog of Orbital Elements of Spectroscopic Binary Systems
is currently associated with Commission 26. The primary duties of
this WG are the maintenance of the
Ninth Catalogue of
Spectroscopic Binary Orbits.
WG on Nominal Units for Stellar and Planetary
was established in response to an IAU Resolution presented at the
2012 General Assembly in Beijing. The WG, both of Divisions A and G,
is discussing the standardization and adoption of nominal
astrophysical parameters: radius and luminosity of the Sun, and
radii of Jupiter and Earth; and a recommendation for the derived
astrophysical parameters: mass and temperature of the Sun, and
masses of Jupiter and Earth.