Getting plate-solving status, please wait...
NGC 628 - JWST MIRI Data, JDJ

NGC 628 - JWST MIRI Data

Getting plate-solving status, please wait...
NGC 628 - JWST MIRI Data, JDJ

NGC 628 - JWST MIRI Data

Equipment

Loading...

Acquisition details

Loading...

Description

I continue to be transfixed by the early release data from the James Webb Space Telescope (JWST).  Following up on the initial release of the first science images on July 11/12, 2022, the JWST continues to release data through its Early Release Observations (ERO) program that is all being made publicly available.  There are some amazing images starting to show up.  One example is a collection of images of several different galaxies imaged by the Mid-Infrared Instrument (MIRI) and the Near-Infrared Camera (NIRCam).    This data is associated with JWST program ID 2107 called "A JWST-HST-VLT/MUSE-ALMA Treasury of Star Formation in Nearby Galaxies."  Talk about treasures, these images are astounding.  This is my take on processing of JWST MIRI (mid-Infrared instrument) data for the galaxy NGC 628 (also known as M74 and "Phantom Galaxy").  This data blows my mind with patterns look fractal and even vaguely biological to me.

These images are from downloaded MIRI data from the MAST archive at: https://mast.stsci.edu/portal/Mashup/Clients/Mast/Portal.html.  There were four images available using the following MIRI filters:
> F770W
> F1000W
> F1130W
> F2100W
 A great description of the MIRI instrument in general including details on all of its filters can be found out: https://jwst-docs.stsci.edu/jwst-mid-infrared-instrument

Processing steps:
1 - Imported FITS files into PixInsight.  
2 - Aligned images using Staralingment process.  I was  not able to align the images using Staralignment.  I think there just aren't enough stars for PixInsight to locate.  Fortunately, I discovered the data was all aligned.
3 - For each filter image, applied MLT noise reduction, an initial stretch using masked stretch, and Generalized Hyperbolic Stretch (GHS2) for fine tuning of the stretch
4 - Processed using my usual narrowband processing approach that uses the SHO-AIP script to generate color images.  I used the following color palette:
>Red = F2100W
>Green = F1130W
>Blue = F1000W
5 - Post-processing steps included: TGV denoise process, HDR transformation, local histogram transformation, and color saturation boost.


Acknowledgement:
This work is based [in part] on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program #2107.

Comments

Revisions

  • Final
    NGC 628 - JWST MIRI Data, JDJ
    Original
  • NGC 628 - JWST MIRI Data, JDJ
    B
  • NGC 628 - JWST MIRI Data, JDJ
    C
  • NGC 628 - JWST MIRI Data, JDJ
    D
  • NGC 628 - JWST MIRI Data, JDJ
    E

B

Description: F770W filter image

Uploaded: ...

C

Description: F1000W filter image

Uploaded: ...

D

Description: F1130W filter data

Uploaded: ...

E

Description: F2100W filter image

Uploaded: ...

Histogram

NGC 628 - JWST MIRI Data, JDJ

In these collections

Processed JWST Data