Hey, hola.
I am Justus Neumann
I am an observational astronomer researching the evolution of galaxies. Currently, I am a postdoc in the Galaxy and Cosmology department of the Max-Planck Institute for Astronomie (MPIA) in Heidelberg, Germany, working in the Extragalactic Star Formation group led by Dr. Eva Schinnerer.
Science
Through my research, I explore how galaxy structures, such as bars and spirals, shape the distribution of stars and gas and drive the chemical evolution in galaxies. By exploring state-of-the-art IFU observations, I investigate the intricate processes driving star formation and morphological evolution. My work sheds light on the links between bar dynamics and stellar populations, contributing to our understanding of galaxy evolution across cosmic time.
Latest publications
Azimuthal Variations of Stellar Populations in Barred Galaxies.
We investigate the azimuthal variations of stellar populations in a sample of 1,000 barred galaxies from the MaNGA survey. We find that bars are of higher stellar mass density and are more metal-rich than the inner discs at the same radii. The differences increase with total stellar mass of the galaxy and distance below the star-forming main sequence. Stellar ages show a variety of bar to inter-bar contrasts, with no consistent trend.
Tahmasebzadeh, Behzad; Zhu, Ling; Shen, Juntai et al., Schwarzschild modelling of barred s0 galaxy NGC 4371, 2024, MNRAS, 534, 861
Laudage, Sebastian; Eibensteiner, Cosima; Bigiel, Frank et al., Neutral atomic and molecular gas dynamics in the nearby spiral galaxies NGC 1512, NGC 4535, and NGC 7496, 2024, A&A., 690A, 169L
Li, Jing; Kreckel, K.; Sarbadhicary, S. et al., Discovery of 2200 new supernova remnants in 19 nearby star-forming galaxies with MUSE spectroscopy, 2024, A&A, 690A, 161L
Bešlić, I.; Barnes, A. T.; Bigiel, F. et al., The properties and kinematics of HCN emission across the closest starburst galaxy NGC 253 observed with ALMA, 2024, A&A, 689A, 122B
Eibensteiner, Cosima; Sun, Jiayi; Bigiel, Frank et al., PHANGS-MeerKAT and MHONGOOSE HI observations of nearby spiral galaxies: physical drivers of the molecular gas fraction, Rmol, 2024, arXiv, 2407.01716
Williams, Thomas G.; Lee, Janice C.; Larson, Kirsten L. et al., PHANGS-JWST: Data-processing Pipeline and First Full Public Data Release, 2024, ApJS, 273, 13W
Verwilghen, Pierrick; Emsellem, Eric; Renaud, Florent et al., Simulating nearby disc galaxies on the main star formation sequence. I. Bar formation and the building of the central gas reservoir, 2024, A&A, 687A, 53V
Kim, Taehyun; Gadotti, Dimitri A.; Querejeta, Miguel et al., Impacts of Bar-driven Shear and Shocks on Star Formation, 2024, ApJ, 968, 87K
Baron, Dalya; Sandstrom, Karin M.; Rosolowsky, Erik et al., PHANGS-ML: Dissecting Multiphase Gas and Dust in Nearby Galaxies Using Machine Learning, 2024, ApJ, 968, 24B