Commission B5 WG Spectroscopic and Radiative Data for Molecules


Radiative processes, especially at ultraviolet, visible, infrared, and millimeter wavelengths, provide essential information on molecular abundances and excitation in astronomical environments.  Analysis of transitions at these wavelengths reveals abundances in diffuse interstellar clouds, stellar and planetary atmospheres, molecular interstellar clouds, disks surrounding both newly forming stars and stars nearing their end, and active galactic nuclei.  Radiative excitation plays a role in diffuse clouds, star forming regions, stellar atmospheres, and active galactic nuclei.  Moreover, photochemical models rely on cross sections for dissociation and ionization.  The Working Group provides a report on the latest experimental and theoretical results for the astronomical community in time for distribution at IAU General Assemblies.

Working Group Members (3)


Commission B5 Laboratory Astrophysics

Steven Robert Federman

University of Toledo
Physics-Astronomy Department
2801 W Bancroft St
Toledo OH 43606
Ohio (OH)
United States

Phone: +1 419 530 2652
Fax: +1 419 530 2723
Email: stevenfedermanutoledoedu

NCA adherence: United States

Last updated:
December 6, 2017

Search Scientific Bodies


IAU General Assembly 2018

IAU XXX GA Vienna Logo


How to Become a Member

CAPjournal issue 23 now available

CAPjournal issue 23

IAU Office of Astronomy for Development

Office for Astronomy Development

Astronomy for Development 
Strategic Plan 2010–2020

Strategic Plan

Symposia and Meetings


IAU Office for Astronomy Outreach

Office for Astronomy Outreach

IAU Office for Young Astronomers

Office for Young Astronomers

International School for Young Astronomers

International School for Young Astronomers

Astronomy Outreach Newsletters and Events

Outreach Newsletters

IAU e-Newsletter
Volume 2018 n° 1

Latest e-Newsletter

Subscribe to the e-Newsletter


UNESCO-IAU Portal to the Heritage of Astronomy