Marcel S. Pawlowski - Astronomer & Black and White Photographer
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New paper: Pairs of Galaxies in ΛCDM show an intervelocity peak compatible with observations

Posted On July 22, 2022 By Marcel In News /  

Screen Shot 2022-07-21 at 12.15.57 PM

My newest paper has now been accepted for publication in Astronomy & Astrophysics and its preprint is now available on the arXiv. It is titled “The intervelocity of galaxy pairs in ΛCDM – The observed velocity peak at ~130 km/s is not unique to MOND“. In it, we investigate whether the mutual velocity of galaxy pairs shows a peak comparable to that found in observational studies. Such a peak had been explained by the dark matter alternative Modified Newtonian Dynamics (MOND), but whether it is present in cosmological simulations was unclear. I have summarized the background and main results of our paper on Twitter.

The paper is the result of a true team effort by my new research group at the AIP. We had worked on this in a “project-in-a-day” fashion, which turned out to be not only very productive, but also was an excellent team bonding and mentoring technique. In shortYou can read more about that in my Twitter thread.

 

Hosting IAU Symposium 379 "Dynamical Masses of Local Group Galaxies" in Potsdam
Selected as Falling Walls Finalist

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