Copenhagen Again

As you might have inferred from my earlier post, I’m back again in the wonderful city of Copenhagen, as a guest of the Niels Bohr Institute. I’ve been here almost every year since my first visit here way back in the 1980s. I didn’t come here last summer, as I was too busy finishing off my duties at Sussex and relocating back to Cardiff so it’s nice to be back again now. I’m staying in one of the `9 small homes‘ that comprise a hotel near the NBI. I’ve stayed here before though not in my current small home, which is actually a self-contained apartment on the ground floor with its own front door. It’s also got a small kitchen so I can cook for myself when I don’t feel like eating out (like tonight). Incidentally, `hjem’ (the Danish word for `home’) is pronounced exactly as `home’ is pronounced in Geordie (i.e. as `hyem’). I did some shopping earlier this evening and attempted to speak Danish when I paid for my groceries. As always, however, I got a reply in English.

I realised only this morning that it’s a year since I left my previous job. I haven’t done half the things I had hoped to do in the year after stepping down as Head of School, but that’s partly because it took quite a while to get over certain health problems and also because quite a few things have come up that I didn’t anticipate. From what I’m told the old place is doing just fine without me!

Coincidently (?), I have arrived here at the Niels Bohr Institute at precisely the time that there is a delegation here from LIGO and there’s been a lot of serious – but good-natured – discussion of `The Danish Paper‘ that came out some time ago and which questioned some aspects of the data analysis of the first detection of gravitational waves. I think there are still quite a few issues to be resolved between the two groups. Although they do seem to be converging on what’s going on, I don’t think this controversy will be fully concluded until more data are made public, as the currently available time series are not exactly those used in the actual LIGO analysis.

I think this discussion can only be of benefit to the science community in the long run, especially if it encourages LIGO to get more fully into the spirit of open science, by releasing more data for use of researchers outside the consortium.

Advertisements

8 Responses to “Copenhagen Again”

  1. The second link also points to NBI, not to the hotel (which, by the way, I’ve stayed at as well).

  2. “I realised only this morning that it’s a year since I left my previous job. I haven’t done half the things I had hoped to do”

    Hofstadters’s law: It always takes longer than you expect, even when you take into account Hofstadter’s law.

    —Douglas R. Hofstadter

  3. Shantanu Says:

    Hi Peter, Just to be clear the delegation from LIGO collaboration is here to discuss only with Creswell et al, ? Or are they here for other purposes (giving talks, conference) and using that to discuss with Creswell? Anyhow would be great if you provide more details from your visit there.

    • telescoper Says:

      I can’t comment on discussions to which I am not a party! I am neither a member of LIGO nor an author of the paper questioning the analysis.

    • telescoper Says:

      Now that I know more I can now clarify. The LIGO people are here as participants in the Kavli Summer Programme organised by the Niels Bohr International Academy:

      https://kspa.soe.ucsc.edu/2017

      While here they have been meeting regularly with the authors of the Danish paper to discuss various issues.

      There was another meeting this morning which I was happy to be invited to attend. It lasted about two hours and I found it very educational. I think there’s a good chance that it will end up with more data being released, which should clear up the main disagreements.

      I learned a lot during this discussion, and have started a collaboration with members of the group here on what I think are important issues on phase analysis.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: