Fabian's Astrophysics Website

I attended the Paris SKA conference at Paris Observatory - PSL in Meudon this week. I gave a poster presentation titled “Pulsar Radio Phenomenology and Fundamental Physics”, which summarises the key pulsar observables and some of our recent work on an approachable level, targeted at non-experts.

Here is the abstract:

In …

After an earlier wave of Zenodo submissions in February, I published my slides on absolute flux density calibrating beam-formed pulsar data from the NenuFAR beam model & polarisation meeting 2025 on Zenodo.

Here is the DOI link:

Absolute Flux Density Calibration of Pulsar Data, Paris Meudon, France

I just published some supplementary data for SUSPECT Paper I on Zenodo.

This includes the integrated pulse profile of PSR B1822-09 at 650 MHz obtained from our uGMRT observations on 2023-04-23, as well as the entire dataset (8723 files) of single pulse dynamic spectrum plots in PDF format. This amounts …

This week, I published some of my recent conference slides and posters on the Zenodo website. This is beneficial because it makes them more widely available and because Zenodo assigns a static DOI to each upload. It is easy to cite and reference my conference publications this way, for instance …

Here is some code to time align and splice (concatenate) different frequency lanes together. It is not fully verified yet, but works very well with my LOFAR offline converted test data in SIGPROC filterbank format.

Here is its GitHub repository.

Extending the code to handle PSRFITS and DADA files should …

I recently published my new FitPDF distribution fitting software on GitHub. The FitPDF software suite fits complex mixture models of various distributions to observed data. This is useful for characterising pulsar or fast radio burst (FRB) pulse energy distributions.

FitPDF operates in a Bayesian and completely unbinned way, thereby maximising …

Most of the Nançay/Orléans pulsar and transient team, along with myself, attended the Pulsar 2025 conference in Sardinia this week. The conference was a success and overall a great experience.

Here is a strongly compressed PDF version of my poster about single-pulse modulation properties with the SUSPECT project multi-frequency …

I recently presented our work on the Sub-GHz Radio Pulsar Emission - Lessons Learned and Predictions for SKA at the SKAO General Science Meeting in Görlitz, Germany. This included some of our NenuFAR Pulsar Census results and some work done as part of the SUSPECT project.

Here is a local copy …

I recently presented our current work from the SUSPECT project at the Les Houches conference in the French Alps near Chamonix.

Additionally, I gave an invited review talk on fast radio bursts (FRBs) and what we know about them from an observational perspective.

Here is a local copy of my …

This week, I participated in a busy day at Paris Meudon focused on calibrating data (beam model, polarization, pointing, flux densities) from the NenuFAR radio telescope. I gave a short presentation about my work on absolute flux density calibrating data from various radio telescopes, including NenuFAR, uGMRT, and LOFAR.

Here …

Our SUSPECT project overview paper (paper I) was accepted for publication in the journal Astronomy & Astrophysics (A&A)!

Please find the abstract and selected plots from the paper below.

Context. Radio pulsars exhibit a plethora of complex phenomena at the single-pulse level. However, the intricacies of their radio emission remain …

Over the weekend, I created a website for our SUSPECT (Science Using Single-Pulse Exploration with Combined Telescopes) pulsar observing project. In this project, we characterise and try to understand the wideband pulsar radio emission with high-sensitivity multi-frequency observations obtained from several radio telescopes in Europe and India. We aim to …

I recently submitted the Science Using Single-Pulse Exploration with Combined Telescopes (SUSPECT) paper I to the Astronomy & Astrophysics journal and submitted it to the arXiv shortly afterwards. It gives an overview of the SUSPECT multi-telescope observing project and demonstrates several new data analysis techniques on a small subset of the …