jdaviz

Specviz2D is a tool designed for the visualization and quick-look analysis of 2D astronomical spectra. It combines interactive visualization tools with powerful analysis capabilities by integrating with the following packages:

• Astropy regions: For defining and managing spatial regions.
• specreduce: For spectral reduction tasks.
• specutils: For spectral analysis.

A key feature of Specviz2D is its ability to perform interactive spectral extraction from 2D spectra.

Imviz is a tool designed for the visualization and analysis of 2D astronomical images. It combines interactive visualization tools with powerful analysis capabilities by incorporating packages like astropy (for regions) and photutils.

Key features include:

• Interactive Analysis: Users can interact with data directly within the tool.
• Programmatic Access: Imviz provides programmatic access to its viewers via the Astrowidgets API. For specific functionality, refer to the AstrowidgetsImageViewerMixin class.
• Data Workflow: Supports importing data into the tool and exporting data out of it, allowing users to integrate Imviz into their existing notebook-based workflows.

Rampviz includes several specialized plugins for data analysis and visualization:

• Metadata Viewer: Used for inspecting data metadata.
• Plot Options: Provides per-viewer and per-layer plotting controls (e.g., toggling axes).
• Subset Tools: Enables the use of subsets within Jdaviz.
• Markers: Provides tools for placing and managing markers.
• Slice: Provides slicing capabilities for data visualization.
• Ramp Extraction: A quick-look tool for extracting ramps from ramp cubes.

Cubeviz is a visualization and analysis toolbox specifically designed for data cubes from integral field units (IFUs), such as those from the NIRSpec and MIRI instruments on JWST. It is built on top of the glue visualization tool and utilizes the specutils package from Astropy.

Key capabilities include:

• Visualization: View wavelength slices (RA, DEC), view flux/error/data quality cubes simultaneously, and create/display contour maps.
• Analysis: Smooth cubes spatially and spectrally, collapse cubes over wavelength regions, fit spectral lines, and fit models to every spaxel.
• Spectral Extraction: View spectra from selected spatial (RA, DEC) regions and overlay spectral line lists.
• Map Generation: Create moment maps, including line flux and kinematic maps (rotation velocity and velocity dispersion).
• Output: Save edited cubes and save figures.

Jdaviz includes several tools designed for inspecting and interacting with loaded datasets within the UI:

• Metadata Viewer: Allows you to view FITS headers and other metadata associated with your loaded datasets.
• Interactive Markers: Enables you to place markers on images and spectra to identify points of interest and extract information from specific locations.
• Logger: Provides access to system messages, warnings, and errors generated during Jdaviz operations.

The Mosviz UI is organized into three main functional areas:

1. Image Viewer (Top Left): Provides image viewing capabilities similar to Cubeviz. It includes a Slit Overlay feature that plots slit geometry based on data from a linked 2D spectrum file.
2. Spectrum Viewers (Top Right): Contains a 2D spectrum viewer positioned above a 1D spectrum viewer. The x-axes of these two viewers are synchronized; panning or zooming the x-axis in one viewer automatically applies the same action to the other.
3. Table Viewer (Bottom): Displays tabular data used to control the other viewers.

Imviz provides several plugins for quick-look analysis of 2D image data. These can be accessed via the plugin icon in the upper right corner of the Imviz application UI.

Available Plugins:

• Metadata Viewer: View metadata associated with selected data. Includes a Show primary header toggle for multi-extension FITS.
• Plot Options: Access per-viewer and per-layer plotting options.
• Data Quality: Visualize and filter data quality flag arrays.
• Subset Tools: Create, modify, and recenter data subsets.
• Markers: Log pixel/world coordinates and measure distances between points.
• Orientation: Align layers by pixels or WCS (sky) and apply sky rotation.

Jdaviz allows you to customize your analysis environment through two primary configuration categories:

1. Plot Options: Use these to control the visual appearance of plots, such as colors, line styles, markers, and other display properties.
2. Display Units: Use these to configure the units used for displaying spectral axes (e.g., wavelength, frequency, energy) and flux values.

Detailed configuration for each is available in the plot_options and display_units documentation sections.

jdaviz is a GUI-based astronomical data analysis visualization tool that provides several types of viewers:

• Image viewers: Support 2D images with tools for panning, zooming, aperture photometry, and catalogs.
• Spectrum viewers: Support 1D and 2D spectra with tools for extraction, measuring spectral features, and line fitting.
• Cube viewers: Provide views of spectroscopic data cubes (e.g., JWST MIRI) along with extracted 1D spectra.
• Table, Scatter, and Histogram viewers: Allow interactive exploration of tabular data and source catalogs.
• Mosviz: A standalone configuration (not yet integrated into the main application in v5.0) for visualizing many astronomical spectra, such as multi-object spectrograph outputs (e.g., JWST NIRSpec).