CARTA: The Cube Analysis and Rendering Tool for Astronomy

Comrie, Angus; Wang, Kuo-Song; Hsu, Shou-Chieh; Moraghan, A.; Harris, P.; Pang, Qi; Pińska, A.; Chiang, Cheng‐Chin; Simmonds, Rob; Chang, Tien-Hao; Jan, Hengtai; Lin, Min

doi:10.5281/zenodo.3403491

Cited by 3 publications

(2 citation statements)

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“…This expected volume of data will require innovative visualisation techniques and a change in the underlying software architecture models to decouple the computation part from the visualisation. This is, for example, the approach followed by new-generation viewers such as CARTA [3], which uses a tiled rendering method in a client-server model. In CARTA, storage and computation are carried out on high-performance remote clusters, whereas visualisation of processed products takes place on the client side exploiting modern web features, such as GPU-accelerated rendering.…”

Section: Background and Related Workmentioning

confidence: 99%

Towards Porting Astrophysics Visual Analytics Services in the European Open Science Cloud

Sciacca

Vitello

Bordiu

et al. 2020

Advances in Intelligent Systems and Computing

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The European Open Science Cloud (EOSC) aims to create a federated environment for hosting and processing research data to support science in all disciplines without geographical boundaries, such that data, software, methods and publications can be shared as part of an Open Science community of practice. This work presents the ongoing activities related to the implementation of visual analytics services, integrated into EOSC, towards addressing the diverse astrophysics user communities needs. These services rely on visualisation to manage the data life cycle process under FAIR principles, integrating data processing for imaging and multidimensional map creation and mosaicing, and applying machine learning techniques for detection of structures in large scale multidimensional maps.

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Section: Background and Related Workmentioning

confidence: 99%

Towards Porting Astrophysics Visual Analytics Services in the European Open Science Cloud

Sciacca

Vitello

Bordiu

et al. 2020

Advances in Intelligent Systems and Computing

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“…Software: Astropy (Astropy Collaboration et al 2013Collaboration et al , 2018, CARTA (Comrie et al 2019), dustmaps (Green 2018), healpy (Zonca et al 2019), matplotlib (Hunter 2007), numpy (Harris et al 2020), RHT (Clark et al 2014), RM Tools (Purcell et al 2020), scipy (Virtanen et al 2020).…”

mentioning

confidence: 99%

A Comparison of Multi-Phase Magnetic Field Tracers in a High-Galactic Latitude Region of the Filamentary Interstellar Medium

Campbell,

Clark,

Gaensler

et al. 2021

Preprint

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Understanding how the Galactic magnetic field threads the multi-phase interstellar medium (ISM) remains a considerable challenge, as different magnetic field tracers probe dissimilar phases and field components. We search for evidence of a common magnetic field shared between the ionized and neutral ISM by comparing 1.4 GHz radio continuum polarization and H i line emission from the Galactic Arecibo L-Band Feed Array Continuum Transit Survey (GALFACTS) and Galactic Arecibo L-Band Feed Array H i (GALFA-H i) survey, respectively. We compute the polarization gradient of the continuum emission and search for associations with diffuse/translucent H i structures. The polarization gradient is sensitive to changes in the integrated product of the thermal electron density and line-ofsight field strength (B ) in warm ionized gas, while narrow H i structures highlight the plane-of-sky field orientation in cold neutral gas. We identified one region in the high-Galactic latitude Arecibo sky, G216+26 centered on ( , b)∼(216 • , +26 • ), containing filaments in the polarization gradient that are aligned with narrow H i structures roughly parallel to the Galactic plane. We present a comparison of multi-phase observations and magnetic field tracers of this region, demonstrating that the warm ionized and cold neutral media are connected likely via a common magnetic field. We quantify the physical properties of a polarization gradient filament associated with Hα emission, measuring a lineof-sight field strength B = 6±4 µG and a plasma beta β = 2.1 +3.1 −2.1 . We discuss the lack of widespread multi-phase magnetic field alignments and consider whether this region is associated with a shorttimescale or physically rare phenomenon. This work highlights the utility of multi-tracer analyses for understanding the magnetized ISM.

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A Comparison of Multiphase Magnetic Field Tracers in a High Galactic Latitude Region of the Filamentary Interstellar Medium

Campbell

Clark

Gaensler

et al. 2022

ApJ

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Understanding how the Galactic magnetic field threads the multiphase interstellar medium (ISM) remains a considerable challenge, as different magnetic field tracers probe dissimilar phases and field components. We search for evidence of a common magnetic field shared between the ionized and neutral ISM by comparing 1.4 GHz radio continuum polarization and H i line emission from the Galactic Arecibo L-Band Feed Array Continuum Transit Survey (GALFACTS) and Galactic Arecibo L-Band Feed Array H i (GALFA-H i) survey, respectively. We compute the polarization gradient of the continuum emission and search for associations with diffuse/translucent H i structures. The polarization gradient is sensitive to changes in the integrated product of the thermal electron density and line-of-sight field strength (B ∥) in warm ionized gas, while narrow H i structures highlight the plane-of-sky field orientation in cold neutral gas. We identified one region in the high Galactic latitude Arecibo sky, G216+26 centered on (ℓ, b) ∼ (216°, +26°), containing filaments in the polarization gradient that are aligned with narrow H i structures roughly parallel to the Galactic plane. We present a comparison of multiphase observations and magnetic field tracers of this region, demonstrating that the warm ionized and cold neutral media are connected likely via a common magnetic field. We quantify the physical properties of a polarization gradient filament associated with Hα emission, measuring a line-of-sight field strength B ∥ = 6 ± 4 μG and a plasma beta β = 2.1 − 2.1 + 3.1 . We discuss the lack of widespread multiphase magnetic field alignments and consider whether this region is associated with a short-timescale or physically rare phenomenon. This work highlights the utility of multitracer analyses for understanding the magnetized ISM.

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CARTA: The Cube Analysis and Rendering Tool for Astronomy

Cited by 3 publications

References 0 publications

Towards Porting Astrophysics Visual Analytics Services in the European Open Science Cloud

Towards Porting Astrophysics Visual Analytics Services in the European Open Science Cloud

A Comparison of Multi-Phase Magnetic Field Tracers in a High-Galactic Latitude Region of the Filamentary Interstellar Medium

A Comparison of Multiphase Magnetic Field Tracers in a High Galactic Latitude Region of the Filamentary Interstellar Medium

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