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Characterization of unresolved and unclassified sources detected in radio continuum surveys of the Galactic plane by Chakraborty, Arnab; Roy, Nirupam; Wang, Y; Datta, Abhirup; Beuther, H; Medina, S-N X; Menten, K M; Urquhart, J S; Brunthaler, A; Dzib, S A is a Physics and Astronomy article available to read on EtoBox.
What is Characterization of unresolved and unclassified sources detected in radio continuum surveys of the Galactic plane about?
## ABSTRACT The continuum emission from 1 to 2 GHz of The H i/OH/Recombination line survey of the inner Milky Way (THOR) at ≲18 arcsec resolution covers ∼132 deg2 of the Galactic plane and detects 10 387 sources. Similarly, the first data release of the Global View of Star Formation in the Milky Way (GLOSTAR) survey covers ∼16 deg2 of the Galactic plane from 4 to 8 GHz at 18 arcsec resolution and detects 1575 sources. However, a large fraction of the unresolved discrete sources detected in these radio continuum surveys of the Galactic plane remain unclassified. Here, we study the Euclidean-normalized differential source counts of unclassified and unresolved sources detected in these surveys and compare them with simulated extragalactic radio source populations and previously established source counts. We find that the differential source counts for THOR and GLOSTAR surveys are in excellent agreement with both simulation and previous observations. We also estimate the angular two-point correlation function of unclassified and unresolved sources detected in THOR survey. We find a higher clustering amplitude in comparison with the Faint Images of the Radio Sky at Twenty-cm (FIRST) sur
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- Author
- Chakraborty, Arnab; Roy, Nirupam; Wang, Y; Datta, Abhirup; Beuther, H; Medina, S-N X; Menten, K M; Urquhart, J S; Brunthaler, A; Dzib, S A
- Publisher
- John Wiley and Sons; Oxford University Press; Oxford University Press (OUP) (ISSN 0035-8711)
- Published
- 2020
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)