2MASS J04202144+2813491

[4] The spectral type was measured to be M1 with the Hobby Eberly Telescope, making it a red dwarf.

[2] The disk was discovered in 2009 as an infrared excess object with Spitzer in Taurus and was resolved in the same work with I-band CFHT images.

[3][4] The disk was first observed in carbon monoxide (CO) with the Five College Radio Astronomy Observatory.

This new CO map does show that the disk extends up to 8 arcseconds or 1000 AU on the south (blueshifted) side.

[7][10] A study showed that dust particles up to ≥10 μm in size are coupled to the gas up to the disk surface.

MIRI MRS also detected resolved polycyclic aromatic hydrocarbon (PAH) in the disk, which is also seen in the unresolved Spitzer spectrum.

This observation detected a Herbig-Haro object with clumps in a jet and counter-jet, extending up to 8 arcseconds from the star.

[6] The jet is detected in a Hubble F606W image, tracing mainly H-alpha, but possibly also other emission lines.

The H2 emission does show a semi-opening angle of 35°±5° and likely creates the X-shaped feature in the 7.7 and 12.8 μm images.