Speaker
Sarah Ragan
(University of Leeds)
Description
In the era of multi-wavelength surveys of the Milky Way, we are well-equipped to
observationally characterise the conditions necessary for star formation on parsec
size-scales. With this wealth of information, we can now not only ask the question of
what these conditions are, but also why they arise where they do. I employ the
Herschel Galactic Plane survey (Hi-GAL) to study the connection between the
properties of compact pre-stellar or star-forming objects and large scale Galactic
features. I show that the prevalence of star formation decreases gradually with
Galactocentric radius and explore how the properties of Hi-GAL sources vary spatially
across spiral arms and into inter-arm regions. I will discuss these findings in the
context of Galactic dynamical theory and extragalactic star formation studies.
Primary author
Sarah Ragan
(University of Leeds)
Co-authors
David Eden
(Liverpool John Moores Univeristy)
Davide Elia
(INAF-Roma)
Melvin Hoare
(University of Leeds)
Sergio Molinari
(INAF-Roma)
Toby Moore
(Liverpool John Moores Univeristy)
