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Possible discovery of Calvera's supernova remnant
(2022-11-01)
We report the discovery of a ring of low surface brightness radio emission around the Calvera pulsar, a high Galactic latitude, isolated neutron star, in the LOFAR Two-metre Sky Survey (LoTSS). It is centered at α = ...
A population of hypercompact HII regions identified from young HII regions
(2021-01-22)
Context. The derived physical parameters for young H II regions are normally determined assuming the emission region to be optically thin. However, this assumption is unlikely to hold for young H II regions such as ...
Thermal Feedback in the High-mass Star- and Cluster-forming Region W51
(2017-06-16)
High-mass stars have generally been assumed to accrete most of their mass while already contracted onto the main sequence, but this hypothesis has not been observationally tested. We present ALMA observations of a 3 × 1.5 ...
The VST photometric hα survey of the Southern Galactic Plane and Bulge (VPHAS+)
(2014-05-21)
The VST Photometric Hα Survey of the Southern Galactic Plane and Bulge (VPHAS+) is surveying the southern Milky Way in u, g, r, i and Hα at ~1 arcsec angular resolution. Its footprint spans the Galactic latitude range -5o ...
Giving physical significance to the Hi-GAL data : determining the distance of cold dusty cores in the Milky Way
(2011)
Context: Hi-GAL, an open time key-project of the Herschel satellite, was awarded 343 hours observing time to carry out a 5-band photometric imaging survey at 70, 160, 250, 350, and 500 mu m of a vertical bar b vertical bar ...
Clustering properties of far-infrared sources in Hi-Gal science demonstation phase fields
(2011)
We use a minimum spanning tree (MST) algorithm to characterize the spatial distribution of Galactic far-IR sources and derive their clustering properties. We aim to reveal the spatial imprint of different types of star-forming ...