Astronomer and stellar astrophysicist Janet Drew has swapped Imperial College, London, for Hertfordshire University this month, taking up a chair in its Centre for Astrophysics Research.
Professor Drew, who is leading two international surveys of the Milky Way, will join four professors and about 50 other research staff.
"Exploring hot young stars" is listed as a key interest on her website.
"The more massive a star is, the rarer and the hotter it is," she said. "Because of this, studies of young, cool low-mass stars are much more advanced than studies of young, hot higher-mass stars."
A former lecturer at St Hilda's College, Oxford, she is exploring the differences between high and low-mass star formation.
Professor Drew studies outflow - matter that is lost during star formation - by working from infrared data and using radio observations and optical techniques.
Tim Roberts, head of science at Priory Middle School in Dunstable, has joined as senior lecturer in primary science in the School of Education.
Dennis Collopy joined this month as senior lecturer on the new music and entertainment industry management programme. He had been a senior lecturer in music business at Buckingham Chilterns University.
Andrew Starr has joined as head of the School of Aerospace, Automotive and Design Engineering. He joins from Manchester University's Maintenance Engineering Research Group.
Naomi Holloway joined earlier this year as director of human resources from a similar post at Queen Mary, University of London.
Wendy Purcell has left her post as deputy vice-chancellor to become vice- chancellor of Plymouth University.
Martin Timbrell, dean of the Business School, departs for the European Business School at Regent's College.
Andrew Dyer, deputy director of finance, takes up the post of financial director at the Royal Veterinary College.