About

Hello! I am Sven Heydenreich, a PhD student in Astrophysics at the Argelander-Institute for Astronomy.

I work in the field of (weak) gravitational lensing, where I try to establish a variety of statistical methods (mostly three-point statistics and persistent Homology) for usage in current and future surveys.

Basic Information
Age:
27
Email:
sven@astro.uni-bonn.de
Phone:
+49 228 73 - 3678
Address:
Argelander-Institut für Astronomie, Auf dem Hügel 71, D-53121 Bonn, Room 2.026
Languages:
German, English
Publications
The Impact of the Mass Spectrum of Lenses in Quasar Microlensing Studies. Constraints on a Mixed Population of Primordial Black Holes and Stars

Esteban-Gutiérrez, A.; Agües-Paszkowsky, N.; Mediavilla, E.; Jiménez-Vicente, J.; Muñoz, J. A.; Heydenreich, S.

In: preprint (2020) [ADS] [PDF]

Persistent homology in cosmic shear: constraining parameters with topological data analysis

Heydenreich, S.; Brück, B.; Harnois-Déraps, J.

In: Astronomy & Astrophysics (accepted, 2020) [ADS] [PDF]

The effects of varying depth in cosmic shear surveys

Heydenreich, S.; Schneider, P.; Hildebrandt, H.; Asgari, M.; Heymans, C.; Joachimi, B.; Kuijken, K.; Lin, C.-A.; Tröster, T.; van den Busch, J. L.

In: Astronomy & Astrophysics (2020) [ADS] [PDF]

Talks

09/2020: Dark Energy Science Collaboration Weak Lensing Mass-Mapping Telecon
Persistent homology in cosmic shear: constraining parameters with topological data analysis

08/2020: Seminar of the International Max-Planck Research School for Astronomy & Astrophysics
Beyond two-point statistics - Constraining cosmological parameters with cosmic shear

06/2020: Seminar on cosmology and gravitational lensing, Bonn
Homology in Lensing

04/2020: Seminar on cosmology and gravitational lensing, Bonn
Third-order statistics in cosmic shear

11/2019: Seminar on cosmology and gravitational lensing, Bonn
Topological Data Analysis in Cosmology

01/2019: Seminar on cosmology and gravitational lensing, Bonn
The effects of varying depth in cosmic shear surveys

06/2018: Seminar on cosmology and gravitational lensing, Bonn
The abundance of primordial black holes using quasar microlensing

Short CV

since 2019

PhD Astrophysics
Argelander-Institut für Astronomie

Supervisor: Peter Schneider

2016 - 2019

M.Sc. Astrophysics
Argelander-Institut für Astronomie

Supervisor: Peter Schneider

thesis: "The effects of varying depth in cosmic shear surveys"

2017-2018

Internship
Instituto de Astrofísica de Canarias

Supervisor: Evencio Mediavilla

research topic: "Abundance of clustered primordial black holes from quasar microlensing"

2014 - 2016

M.Sc. Mathematics
Westfälische Wilhelms-Universität Münster

Supervisor: Johannes Ebert

thesis: "Wall's finiteness criterion Fn for groups"

Contact Me
Feel free to contact me

Address

Argelander-Institut für Astronomie, Auf dem Hügel 71, D-53121 Bonn, Room 2.026

Phone

+49 228 73 - 3678

Email

sven@astro.uni-bonn.de