Vegard Undheim | University of Stavanger

Contact

Telephone: +47 41486911

Email: vegard.undheim@uis.no

Room: KE D-356A

Location: Kjølv Egelands Hus, campus Ullandhaug

Department

Faculty of Science and Technology

Department of Mathematics and Physics

About me

I work on gravitational waves and the physics we can learn from them. I am interested in alternative theories of gravity, motivated by unresolved issues of how gravity fits in our theoretical framework for quantum matter and other fun mysteries related to gravity. Another interest of mine is public outreach. I happily give public talks about gravitational waves, having presented at the Stavanger Astronomical Society, Fysikermøtet, and open events for students. I have also had the privilege of participating in the radio show "Abels tårn" on NRK P2 and I am a member of the Norwegian Physics Olympiad Committee based here in Stavanger.

My research

I am a member of the LIGO scientific collaboration, LIGO (Laser Interferometer Gravitational-wave Observatory) is the gravitational wave observatories located in the US and were the first to measure gravitational waves directly. Now for my PhD project I contribute to their work by helping to run data analysis and have looked for signs of gravitational wave echoes in the data.

Academic background

My bachelor's and master's degrees are both in physics from NTNU. My master's thesis was also on gravitational waves theory, sparking my interest. I also hold a Post Graduate Diploma in Education (Praktisk Pedagogisk Utdanning/PPU) from NTNU focused on teaching physics and math to high schoolers. This came in handy when I got to teach the physics part of UiS's "Preperatory course for engineering" in 2023.

Follow me online

Publications

Vitenskapelige publikasjoner

Scientific Collaboration, The LIGO; Collaboration, The Virgo; Collaboration, The KAGRA; Nielsen, Alex Bentley; Undheim, Vegard

(2025)

Search for continuous gravitational waves from known pulsars in the first part of the fourth LIGO-Virgo-KAGRA observing run.

arXiv.

DOI: 10.48550/arXiv.2501.01495

Scientific Collaboration, LIGO; Collaboration, Virgo; Collaboration, KAGRA; Nielsen, Alex Bentley; Undheim, Vegard

(2024)

Observation of Gravitational Waves from the Coalescence of a 2.5–4.5 M⊙ Compact Object and a Neutron Star.

Astrophysical Journal Letters.

ISSN 2041-8205.

Volum 970.

Hefte 2.

DOI: 10.3847/2041-8213/ad5beb

Scientific Collaboration, LIGO; Collaboration, Virgo; Collaboration, KAGRA; Nielsen, Alex Bentley; Undheim, Vegard

(2024)

Search for gravitational waves emitted from SN 2023ixf.

arXiv.org.

ISSN 2331-8422.

DOI: 10.48550/arXiv.2410.16565

Abac, A.G.; Abbott, R.; Abouelfettouh, I.; Acernese, F.; Adhicary, S.; Adhikari, N.; Adhikari, R.X.; Adkins, V.K.; Agarwal, D.; Agathos, M.; Aghaei Abchouyeh, Abchouyeh; Aguiar, O.D.; Aguilar, I.; Aiello, L.; Ain, A.; Ajith, P.; Akutsu, T.; Albanesi, S.; Alfaidi, R.A.; Al-Jodah, A.; Alléné, C.; Allocca, A.; Al-Shammari, S.; Altin, P.A.; Alvarez-Lopez, S.; Amato, A.; Amez-Droz, L.; Amorosi, A.; Amra, C.; Ananyeva, A.; Anderson, S.B.; Anderson, W.G.; Andia, M.; Ando, M.; Andrade, T.; Andres, N.; Andrés-Carcasona, M.; Andrić, T.; Anglin, J.; Ansoldi, S.; Antelis, J.M.; Antier, S.; Aoumi, M.; Appavuravther, E.Z.; Appert, S.; Apple, S.K.; Arai, K.; Araya, A.; Araya, M.C.; Nielsen, Alex Bentley; Undheim, Vegard; Scientific Collaboration, The LIGO; Collaboration, The Virgo; Collaboration, The KAGRA

(2024)

A Search Using GEO600 for Gravitational Waves Coincident with Fast Radio Bursts from SGR 1935+2154.

The Astrophysical Journal (ApJ).

ISSN 0004-637X.

Volum 977.

Hefte 2.

DOI: 10.3847/1538-4357/ad8de0

Undheim, Vegard; Nielsen, Alex Bentley; Svanes, Eirik Eik

(2023)

1PN effective binary Lagrangian for the gravity-Kalb-Ramond sector in the conservative regime.

arXiv.org.

ISSN 2331-8422.

DOI: 10.48550/arXiv.2312.11322

Bøker og kapitler

Undheim, Vegard; Andersen, Jens Oluf

(2021)

First post-Newtonian correction to gravitational waves produced by compact binaries: How to compute relativistic corrections to gravitational waves using Feynman diagrams.

Formidling

Undheim, Vegard

(2024)

Hva kan vi lære fra gravitasjonsbølger?.

Medlemsmøte Stavanger Astronomisk Forening;

2024-05-15.

Undheim, Vegard; Jemterud, Torkild; Bratlie, Sigrid; Nyre, Lars

(2024)

Abels tårn: Hvordan ville en blanding av alle mennesker sett ut?.

Undheim, Vegard; Jemterud, Torkild; Bratlie, Sigrid; Nyre, Lars

(2024)

Abels tårn: Hva skjer når to sorte hull krasjer?.

Undheim, Vegard

(2023)

Gravitational wave science arrives at Stavanger.

Fysikermøtet;

2023-08-09 - 2023-08-11.