Matches in SemOpenAlex for { <https://semopenalex.org/work/W2742458907> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W2742458907 abstract "Astrophysical sources such as radio halos and relics in galaxy clusters, supernova remnants and radio galaxies have angular sizes from a few to several $10$s of arcminutes. In radio interferometric imaging of such sources, the largest angular size of the source that can be imaged is limited by the shortest projected baseline towards the source. It is essential to determine the limitations of the recovery of the extended features on various angular scales in order to interpret the radio image. We simulated observations of a model extended source of Gaussian shape with the Giant Metrewave Radio Telescope (GMRT) using Common Astronomy Software Applications (CASA). The recovery in flux density and in morphology of the model source was quantified in a variety of observing cases with changing source properties and the uv-coverage. If $theta_{lar}$ is the largest angular scale sampled in an observation with the GMRT, then $>80%$ recovery of a source of size $0.3timestheta_{lar}$ is possible. The upgraded GMRT (U-GMRT) providing 200 MHz instantaneous bandwidth between 300 - 500 MHz will allow a factor of two better recovery of a source of size $theta_{lar}$ as compared to the GMRT at 300 MHz with 33 MHz bandwidth. We provide quantitative estimates for the improvement in extended source recovery in observations at low elevations and long durations. The presented simulations can be carried out for future radio telescopes such as the Square Kilometre Array (SKA) for optimisation of observing strategies to image extended radio sources." @default.
- W2742458907 created "2017-08-17" @default.
- W2742458907 creator A5001353338 @default.
- W2742458907 creator A5038126622 @default.
- W2742458907 date "2017-08-05" @default.
- W2742458907 modified "2023-09-27" @default.
- W2742458907 title "Simulations of imaging extended sources using the GMRT and the U-GMRT: Implications to observing strategies" @default.
- W2742458907 cites W1527309878 @default.
- W2742458907 cites W1657964192 @default.
- W2742458907 cites W1909359706 @default.
- W2742458907 cites W2054976113 @default.
- W2742458907 cites W3098739097 @default.
- W2742458907 cites W3100549989 @default.
- W2742458907 cites W3102162921 @default.
- W2742458907 cites W3105401162 @default.
- W2742458907 hasPublicationYear "2017" @default.
- W2742458907 type Work @default.
- W2742458907 sameAs 2742458907 @default.
- W2742458907 citedByCount "0" @default.
- W2742458907 crossrefType "journal-article" @default.
- W2742458907 hasAuthorship W2742458907A5001353338 @default.
- W2742458907 hasAuthorship W2742458907A5038126622 @default.
- W2742458907 hasBestOaLocation W27424589071 @default.
- W2742458907 hasConcept C121332964 @default.
- W2742458907 hasConcept C1276947 @default.
- W2742458907 hasConcept C150846664 @default.
- W2742458907 hasConcept C153465967 @default.
- W2742458907 hasConcept C161813005 @default.
- W2742458907 hasConcept C166689943 @default.
- W2742458907 hasConcept C20249676 @default.
- W2742458907 hasConcept C2776257435 @default.
- W2742458907 hasConcept C2780119159 @default.
- W2742458907 hasConcept C2780590096 @default.
- W2742458907 hasConcept C2780848835 @default.
- W2742458907 hasConcept C41008148 @default.
- W2742458907 hasConcept C44870925 @default.
- W2742458907 hasConcept C76155785 @default.
- W2742458907 hasConcept C98444146 @default.
- W2742458907 hasConceptScore W2742458907C121332964 @default.
- W2742458907 hasConceptScore W2742458907C1276947 @default.
- W2742458907 hasConceptScore W2742458907C150846664 @default.
- W2742458907 hasConceptScore W2742458907C153465967 @default.
- W2742458907 hasConceptScore W2742458907C161813005 @default.
- W2742458907 hasConceptScore W2742458907C166689943 @default.
- W2742458907 hasConceptScore W2742458907C20249676 @default.
- W2742458907 hasConceptScore W2742458907C2776257435 @default.
- W2742458907 hasConceptScore W2742458907C2780119159 @default.
- W2742458907 hasConceptScore W2742458907C2780590096 @default.
- W2742458907 hasConceptScore W2742458907C2780848835 @default.
- W2742458907 hasConceptScore W2742458907C41008148 @default.
- W2742458907 hasConceptScore W2742458907C44870925 @default.
- W2742458907 hasConceptScore W2742458907C76155785 @default.
- W2742458907 hasConceptScore W2742458907C98444146 @default.
- W2742458907 hasLocation W27424589071 @default.
- W2742458907 hasOpenAccess W2742458907 @default.
- W2742458907 hasPrimaryLocation W27424589071 @default.
- W2742458907 hasRelatedWork W1482198616 @default.
- W2742458907 hasRelatedWork W1616304417 @default.
- W2742458907 hasRelatedWork W1620492101 @default.
- W2742458907 hasRelatedWork W2008296298 @default.
- W2742458907 hasRelatedWork W2136217023 @default.
- W2742458907 hasRelatedWork W2339944010 @default.
- W2742458907 hasRelatedWork W2765106658 @default.
- W2742458907 hasRelatedWork W2768374914 @default.
- W2742458907 hasRelatedWork W2931519873 @default.
- W2742458907 hasRelatedWork W2952335452 @default.
- W2742458907 hasRelatedWork W2970373159 @default.
- W2742458907 hasRelatedWork W3045913772 @default.
- W2742458907 hasRelatedWork W3085279502 @default.
- W2742458907 hasRelatedWork W3093283041 @default.
- W2742458907 hasRelatedWork W3100069415 @default.
- W2742458907 hasRelatedWork W3103344871 @default.
- W2742458907 hasRelatedWork W3104743261 @default.
- W2742458907 hasRelatedWork W3105499768 @default.
- W2742458907 hasRelatedWork W3106288843 @default.
- W2742458907 hasRelatedWork W3161242201 @default.
- W2742458907 isParatext "false" @default.
- W2742458907 isRetracted "false" @default.
- W2742458907 magId "2742458907" @default.
- W2742458907 workType "article" @default.