Significant new opportunities for astrophysics and cosmology have been identified at low
radio frequencies. The Murchison Widefield Array is the first telescope in the southern …

Context. The spiral structure of the Milky Way is not yet well determined. The keys to
understanding this structure are to increase the number of reliable spiral tracers and to …

We present a new catalogue of 5106 infrared bubbles created through visual classification
via the online citizen science website '; The Milky Way Project'. Bubbles in the new …

ABSTRACT The Green Bank Telescope (GBT) H ii Region Discovery Survey has doubled
the number of known H ii regions in the Galactic zone 343⩽ ℓ⩽ 67 with| b|⩽ 1. We detected …

The distribution of metals in the Galaxy provides important information about galaxy
formation and evolution. H ii regions are the most luminous objects in the Milky Way at mid …

We present the derivation of the free–free emission on the Galactic plane between ℓ= 20°
and 44° and| b|≤ 4°, using radio recombination line (RRL) data from the H i Parkes All Sky …

Context. The formation of high mass stars and clusters occurs in giant molecular clouds.
Objects in evolved stages of massive star formation such as protostars, hot molecular cores …

Using the 870 μm APEX Telescope large area survey of the Galaxy, we have identified 577
submillimetre continuum sources with masers from the methanol multibeam survey in the …

We present a detailed statistical study of massive star formation in the environment of 322
Spitzer mid-infrared bubbles by using the Red MSX Source (RMS) survey for massive young …

Distances to high-mass star-forming regions (HMSFRs) in the Milky Way are a crucial
constraint on the structure of the Galaxy. Only kinematic distances are available for a …