Prof. Dr. Lutz Wisotzki

About me: I am an astronomer interested in many things, but especially in the origin and evolution of galaxies. My main research activity is focused on spectroscopic surveys of high-redshift galaxies and the study of the circumgalactic medium. My main observational tool is the MUSE instrument at the ESO Very Large Telescope in Chile, and I am as well involved in the HETDEX project. In my past research I worked a lot on Active Galactic Nuclei and their host galaxies, on the intergalactic medium, and a bit on gravitational lensing. I regularly teach at the University of Potsdam, and I have written a German-language textbook on general astrophysics at introductory level.

Galaxies and Quasars

Section Head

Office: SH/224
Phone: +49 331 7499 532
lwisotzki@aip.de

Leibniz-Institut
für Astrophysik Potsdam (AIP)
An der Sternwarte 16
14482 Potsdam

My research

Group page "Galaxies and Quasars"

Teaching Astrophysics at Potsdam University

In the academic year 2020/21 I teach the "Grundkurs Astrophysik I and II". Access via Moodle.

Textbook

My textbook "Astronomie und Astrophysik - ein Grundkurs" (Introduction into Astronomy and Astrophysics; German language only) is now in its 5th edition. All figures and colour plates are freely available for teaching and study purposes. Please click here to get to the entry pages. While the figure captions are in German, most figures can be used independently of the language. I am currently preparing a thoroughly revised 6th edition.

Publications

Latest refereed publications, retrieved from NASA ADS:

Spatially resolved spectroscopic analysis of Lyα haloes: Radial evolution of the Lyα line profile out to 60 kpc

Guo, Y., ... Wisotzki, L., ..., 2024
Astronomy and Astrophysics, 691, A66; published November 2024

doi:10.1051/0004-6361/202347958, NASA ADS

Participating AIP sections and groups: Galaxies and Quasars

The intrinsic distribution of Lyman-α halos

Pharo, J., Wisotzki, L., Urrutia, T., ... Pessa, I., Augustin, R., ... Kozlova, D., ... Salas, H., Smirnov, D., ..., 2024
Astronomy and Astrophysics, 690, A343; published October 2024

doi:10.1051/0004-6361/202451318, NASA ADS

Participating AIP sections and groups: Galaxies and Quasars, 3D and Multi Object Spectroscopy

Median surface-brightness profiles of Lyman-α haloes in the MUSE Extremely Deep Field

Guo, Y., ... Wisotzki, L., ... Herrero Alonso, Y., ... Pharo, J., ..., 2024
Astronomy and Astrophysics, 688, A37; published August 2024

doi:10.1051/0004-6361/202347658, NASA ADS

Participating AIP sections and groups: Galaxies and Quasars

Large-scale excess H I absorption around z ≈ 4 galaxies detected in a background galaxy spectrum in the MUSE eXtremely deep field

Matthee, J., ... Urrutia, T., ... Wisotzki, L., 2024
Monthly Notices of the Royal Astronomical Society, 529, 3, 2794; published April 2024

doi:10.1093/mnras/stae673, NASA ADS

Participating AIP sections and groups: Galaxies and Quasars, 3D and Multi Object Spectroscopy

Lyman continuum leaker candidates at z ∼ 3-4 in the HDUV based on a spectroscopic sample of MUSE LAEs

Kerutt, J., ... Wisotzki, L., ... Urrutia, T., ..., 2024
Astronomy and Astrophysics, 684, A42; published April 2024

doi:10.1051/0004-6361/202346656, NASA ADS

Participating AIP sections and groups: Galaxies and Quasars, 3D and Multi Object Spectroscopy

MUSEQuBES: mapping the distribution of neutral hydrogen around low-redshift galaxies

Dutta, S., ... Wisotzki, L., ..., 2024
Monthly Notices of the Royal Astronomical Society, 528, 2, 3745; published February 2024

doi:10.1093/mnras/stae206, NASA ADS

Participating AIP sections and groups: Galaxies and Quasars

Bipolar outflows out to 10 kpc for massive galaxies at redshift z ≈ 1

Guo, Y., ... Wisotzki, L., ..., 2023
Nature, 624, 7990, 53; published December 2023

doi:10.1038/s41586-023-06718-w, NASA ADS

Participating AIP sections and groups: Galaxies and Quasars

HETDEX Public Source Catalog 1-Stacking 50,000 Lyman Alpha Emitters

Davis, D., ... Wisotzki, L., ..., 2023
The Astrophysical Journal, 954, 2, 209; published September 2023

doi:10.3847/1538-4357/ace4c2, NASA ADS

Participating AIP sections and groups: Galaxies and Quasars

The contribution of faint Lyman-α emitters to extended Lyman-α halos constrained by MUSE clustering measurements

Herrero Alonso, Y., Wisotzki, L., ... Pharo, J., Krumpe, M., 2023
Astronomy and Astrophysics, 677, A125; published September 2023

doi:10.1051/0004-6361/202347294, NASA ADS

Participating AIP sections and groups: Galaxies and Quasars, Galaxies and Quasars / X-ray Astronomy

On the evolution of the size of Lyman alpha haloes across cosmic time: no change in the circumgalactic gas distribution when probed by line emission

Runnholm, A., ... Wisotzki, L., 2023
Monthly Notices of the Royal Astronomical Society, 522, 3, 4275; published July 2023

doi:10.1093/mnras/stad1264, NASA ADS

Participating AIP sections and groups: Galaxies and Quasars