Research fellow in galaxy evolution at MPIA. Previously at ICG Portsmouth, AIP Potsdam, ESO Chile.
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ALT Nineteen Webb images of face-on spiral galaxies are combined in a mosaic. Some appear within squares, and others horizontal or vertical rectangles. Many galaxies have blue hazes toward the centers, and all have orange spiral arms. Many have clear bar shaped-structures at their centers, but a few have spirals that begin at their cores. Some of the galaxies’ arms form clear spiral shapes, while others are more irregular. Some of the galaxies’ arms appear to rotate clockwise and others counterclockwise. Most galaxy cores are centered, but a few appear toward an image’s edge. Most galaxies appear to extend beyond the captured observations. The galaxies shown, listed in alphabetical order, are IC 5332, NGC 628, NGC 1087, NGC 1300, NGC 1365, NGC 1385, NGC 1433, NGC 1512, NGC 1566, NGC 1672, NGC 2835, NGC 3351, NGC 3627, NGC 4254, NGC 4303, NGC 4321, NGC 4535, NGC 5068, and NGC 7496.
ALT Collection of 19 false-color images showing the fine structure of the spiral arms of spiral galaxies
![Position of bar dust lanes in the nearby, barred spiral galaxy NGC 1097. We show in the background a (WFC3) HST image composed of the following filters from projects PID 13413 and 15654 (processed as part of PHANGS-HST; see Lee et al. 2022): F275W nm (UV) and F336W (u) broad-band in violet, F438W (B) broad-band in dark blue, F547M (Strömgren y) medium band in cyan, F555W broad-band (V) in green, F814W broad-band (I) in yellow, and F657N (H α + [N II]) in red. Overlaid as coloured contours is the CO(2–1) integrated intensity from the PHANGS-ALMA survey (Leroy et al. 2021b), in levels of 2, 10, 20, 50, 75, 100, and 250 K km s−1 (increasing from blue to red). Note that the galaxy is rotated in the plane of the sky such that the direction of the kinematic position angle points towards the negative x axis (see Fig. 2).](https://pbs.twimg.com/media/FyLUOHGWIAEb5fD.png?name=orig)
ALT Position of bar dust lanes in the nearby, barred spiral galaxy NGC 1097. We show in the background a (WFC3) HST image composed of the following filters from projects PID 13413 and 15654 (processed as part of PHANGS-HST; see Lee et al. 2022): F275W nm (UV) and F336W (u) broad-band in violet, F438W (B) broad-band in dark blue, F547M (Strömgren y) medium band in cyan, F555W broad-band (V) in green, F814W broad-band (I) in yellow, and F657N (H α + [N II]) in red. Overlaid as coloured contours is the CO(2–1) integrated intensity from the PHANGS-ALMA survey (Leroy et al. 2021b), in levels of 2, 10, 20, 50, 75, 100, and 250 K km s−1 (increasing from blue to red). Note that the galaxy is rotated in the plane of the sky such that the direction of the kinematic position angle points towards the negative x axis (see Fig. 2).
ALT A large galaxy takes up the entirety of the image. The core is mostly bright white, but there are also swirling, detailed structures that resemble water circling a drain. There is white and light blue colored dust that emanates from the core’s center, but it is tightly contained to the core. The rings are wispy and highlight filaments of dust around cavernous black bubbles. The dust in the outer rings contains dots that are navy blue, pinkish, reddish, and white.
ALT A large galaxy takes up the entirety of the image. Six reddish diffraction spikes extend from the core. The spiral arms of the galaxy outstretch to the upper left and the lower right. The arms are wispy and highlight filaments of dust around cavernous black bubbles. That dust in the outer rings contains diffuse dots that are navy blue, pinkish, reddish, and white.
ALT A large spiral galaxy takes up the entirety of the image, with the lower right portion of the galaxy’s spiral arms extending out of frame. The core of the galaxy i
ALT A spiral galaxy with two arms. Pinkish areas dot the brightest points along the arms, while brownish and blueish hues dominate the spaces in between. A complicated web of dust forms the arms with many tendrils also connecting them in the dimmer areas. Pin pricks of light from background galaxies and very few stars are scattered about the image.