2D Spectrum Format#

Load two-dimensional spectroscopic data.

Overview#

The 2D Spectrum format is used for loading spectroscopic data where the flux varies along two dimensions - typically the dispersion (wavelength) direction and the spatial (cross-dispersion) direction.

Usage#

import jdaviz
jdaviz.show()

# Load a 2D spectrum
jdaviz.load('spectrum2d.fits', format='2D Spectrum')

Data Requirements#

The data should be a 2D array where:

  • One axis represents the spectral (dispersion) direction

  • The other axis represents the spatial (cross-dispersion) direction

  • Pixel values represent flux measurements

Common examples include long-slit spectroscopy and grism spectroscopy data.

Supported File Formats#

  • FITS files with 2D spectral images

  • JWST pipeline products (s2d files)

  • HST grism data

UI Access#

v0.1
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Data Menu

Control data and subset layer order and visibility for each viewer. Toggle layer visibility, reorder layers by dragging, and manage which data appears in the viewer. 

dm = jd.viewers[viewer].data_menu

See Also#