Archive for March, 2019

Fine-tuning in Cosmology

Posted in The Universe and Stuff with tags , , , , , on March 25, 2019 by telescoper

I forgot to post a link to a paper by Fred Adams that appeared on the arXiv last month on the topic of the fine-tuning of the Universe which I had bookmarked for a blog a while ago.

My heart always sinks when the arXiv informs me that the abstract of a paper is `abridged’ so here’s the full version from the PDF you can download for yourself here. Please be aware, though, that it’s a lengthy paper running to over two hundred pages:

My own view on this topic is that it is indeed remarkable that the Universe is finely-tuned to exactly the extent required to allow authors to write such long papers about the fine-tuning of the Universe…

 

Promoting the Open Journal of Astrophysics

Posted in Open Access, The Universe and Stuff with tags , , , on March 24, 2019 by telescoper

The talk I gave at the meeting I attended last week to celebrate the retirement 60th Birthday of Alan Heavens was about the Open Journal of Astrophysics project. Here are the slides:

I decided a while ago that whenever I get the opportunity at conferences or other meetings I will talk about the Open Journal of Astrophysics (OJA for short) , mainly to encourage more submissions but also to raise OJA’s profile so people aren’t tempted to dismiss review invitations as spam from predatory journals.  At the moment, refereeing is the rate-limiting step in the publication process, at least part of the reason being that people don’t really know what we’re about and perhaps assume that it’s not a bona fide operation.

The talk I gave on Friday generated a fair amount of discussion, and was hopefully a small step along the way to establishing OJA as a mainstream journal and perhaps even the default choice for papers on astrophysics. Emma Chapman posted a tweet about my talk (including a picture of me in action) which got quite a lot of attention on Twitter:

 

https://twitter.com/DrEOChapman/status/1109125125411139584

I’ll just add that you can read more about the extent of the profiteering going on here.

 

Finally, and perhaps most importantly, let me mention I have some money (in a grant courtesy of the Gordon & Betty Moore Foundation) to help promote this project, and I can legitimately spend it on travel to give talks etc.. If anyone would like a talk about this project, please feel free to contact me!

 

A Very British March

Posted in Biographical, Politics with tags , , , , on March 24, 2019 by telescoper

I’m back in Maynooth now after yesterday’s wonderful demonstration in London. Sources are claiming that about 1.4M people attended. I met filk from all round the country, many of whom had never been on a march before. It’s also worth saying according to the Metropolitan Police that there was not a single incident that they had to deal with.

I’m not very good in big crowds (to say the least) so I stood for a while a little distance from the main body of the demonstration as it assembled in Park Lane. I was astonished to see how many people were joining. It was certainly larger than the previous one, last year.

I eventually joined in when it started moving (very slowly). The people were very friendly and despite the numbers I didn’t get at all panicky. It struck me as being a quintessentially British demonstration, in that it was basically just some very nice polite people waiting politely in a very long queue..

The march was due to start at 12 noon but i didn’t get going until well after 2pm. I had to leave at 4pm, by which I had only got halfway along Piccadilly. Instead of going all the way to Parliament Square I headed back to my hotel, picked up the bag I had left there and took a packed tube to Heathrow. I made it just in time. The plane began boarding just as I ckeated the security checks.

I didn’t take many pictures of the march, but here are a few:

Hyde Park, the Statue of Achilles

Philosopher A. C. Grayling and I..

Beards against Brexit!

It was a wonderful experience to be in the company of so many extremely nice people and I was sad I couldn’t make it all the way to the end!

P. S. The petition on revoking Article 50 has reached almost reached 5 million signatures.

Put it to the People!

Posted in Politics with tags , , , on March 23, 2019 by telescoper

Well, that was a very enjoyable and informative couple of days in London celebrating the 60th Birthday of Alan Heavens, but my trip to London is not yet over. Before going to Heathrow Airport for the flight back to Dublin this evening, I am taking part in a demonstration in Central London demanding a referendum as a last chance to avert the calamity of Brexit, halt Britain’s descent into nationalistic xenophobia, and prevent the social and economic harm being done by the ongoing madness. I have a feeling that Theresa May’s toxic speech on Wednesday evening in which she blamed everyone but herself for the mess that she has created will have galvanized many more than me into action.

I’m not sure whether this march – even if it is huge – will make much difference or even that it will be properly reported in the media, but one has to do something. Despite the short delay to the Brexit date agreed by the EU, I still think the most likely outcome of this shambles is that the UK leaves without a proper withdrawal agreement and thus begins a new life as a pariah state run by incompetent deadheads who know nothing other than the empty slogans that they regurgitate instead of answering real questions.

The only sensible response to the present impasse is to `Put it to the People’, but there is no time to organize a new referendum – a proper one, informed by facts as we now know them and without the wholesale unlawful behavior of the Leave campaign in the last one. I dismiss entirely any argument that a new referendum would be undemocratic in any way. Only those terminally gripped by Brexit insanity would argue that voting can be anti-democratic, especially since there is strong evidence from opinion polls that having seen the mess the Government has created a clear majority wishes to remain. If there isn’t time for a new referendum before the deadline – and further extensions by the EU are unlikely – then the best plan is to revoke the Article 50 notification to stop the clock.

I know I’m not alone in thinking this. An official petition demanding the Government revoke Article 50 has passed 4,000,000 signatures in just a few days. I’ve signed it and encourage you to do likewise, which you can do here.

And if you’re tempted to agree with the Prime Minister’s claim that people are just tired of Brexit and just want it to be over, then please bear in mind that the Withdrawal Agreement – which has taken two years to get nowhere – is only the start of the process. The UK is set for years of further negotiations on the terms of its future relationship not only with the European Union but also all the other agreements that will be terminated by the UK’s self-imposed isolation.

If Brexit does go ahead, which I’m afraid I think will be the case, then my participation in today’s march will not have been a waste – it seems a fitting way to say goodbye to the land of my birth, a country to which I no longer belong.

Anyway, I may be able to add a few pictures of the march in due course but, until then, here is an excerpt from Private Eye that made me laugh.

A Trip on the Thames

Posted in Uncategorized with tags , on March 22, 2019 by telescoper

Last night as part of the social programme of this conference the participants went on a boat trip along the Thames from Westminster Pier to Canary Wharf and back. It was a very enjoyable trip during which I got to talk to a lot of old friends as well as mingling with the many early career researchers at this meeting. I can’t help thinking, though, that graduate students seem to be getting younger..

Meanwhile, back in Burlington House, astronomers have found observational evidence of modifications to Newton’s gravity..

The Most Ancient Heavens

Posted in Art, Biographical, Poetry, The Universe and Stuff with tags , , , , , , , , on March 21, 2019 by telescoper

So here I am, in that London, getting ready for the start of a two-day conference at the Royal Astronomical Society on cosmology, large-scale structure, and weak gravitational lensing, to celebrate the work of Professor Alan Heavens, on (or near) the occasion of his 60th birthday. Yes, it is a great name for an astronomer.

I was honoured to be invited to give a talk at this meeting, though my immediate reaction when I was told about was `But he can’t be sixty! He’s only a few years older than me…oh.’ I gather I’m supposed to say something funny after the conference dinner tomorrow night too.

Courtesy of alphabetical order it looks like I’m top of the bill!

Anyway, I’ve known Alan since I was a research student, i.e. over thirty years, and we’re co-authors on 13 papers (all of them since 2011). I’m looking forward to the HeavensFest not only for the scientific programme (which looks excellent) but also for the purpose of celebrating an old friend and colleague.

Just to clear up a couple of artistic points.

First, the title of the meeting, The Most Ancient Heavens, is taken from Ode to Duty by William Wordsworth.

Second, the image on the conference programme shown above is a pastiche of The Creation of Alan Adam which is part of the ceiling of the Sistine Chapel painted by Michelangelo di Lodovico Buonarroti Simoni, known to his friends as Michelangelo. Apparently he worked flat out painting this enormous fresco. It was agony but the ecstasy kept him going. I’ve often wondered (a) who did the floor of the Sistine Chapel and (b) how could Michelangelo create such great art when it was so clearly extremely cold? Anyway, I think that is a picture of Alan at high redshift on the far right, next to the man with beard who at least had the good sense to wear a nightie to spare his embarrassment.

Anyway, that’s all for now. I must be going. Time for a stroll down to Piccadilly.

Update: you can find a bunch of pictures of this conference here.

Spring Equinox in the Ancient Irish Calendar | 20 March 2019

Posted in Uncategorized with tags , , , on March 20, 2019 by telescoper

I’m sharing this interesting post with a quick reminder that the Vernal Equinox in the Northern Hemisphere occurs today, 20th March 2019, at 21:58 GMT.

New Publication at the Open Journal of Astrophysics!

Posted in OJAp Papers, Open Access, The Universe and Stuff with tags , , , , , , , , , on March 20, 2019 by telescoper

It’s nice to be able to announce that the Open Journal of Astrophysics has just published another paper. Here it is!

It’s by Darsh Kodwani, David Alonso and Pedro Ferreira from a combination of Oxford University and Cardiff University.

You can find the accepted version on the arXiv here. This version was accepted after modifications requested by the referee and editor.

This is another one for the `Cosmology and Nongalactic Astrophysics’ folder. We would be happy to get more submissions from other areas of astrophysics. Hint! Hint!

P.S. A few people have asked why the Open Journal of Astrophysics is not listed in the Directory of Open Access Journals. The answer to that is simple: to qualify for listing a journal must publish a minimum of five papers in a year. Since OJA underwent a failure long hiatus after publishing its first batch of papers we don’t yet qualify. However, so far in 2019 we have published four papers and have several others in the pipeline. We will reach the qualifying level soon and when we do I will put in the application!

A Grand Slam Weekend

Posted in Biographical, Cardiff, Rugby with tags , , , on March 19, 2019 by telescoper

Well, here I am sitting in Cardiff Airport yet again waiting for a flight back to Dublin so I reckon it’s time to break my self-imposed blogging silence.

I had an enjoyable little break, the highlight of which was the rugby on Saturday between Wales and Ireland. I actually managed to get a ticket for the game, though I am not at liberty to divulge how I got it. I was a long way back from the pitch, practically in the rafters of the Principality Stadium, but the view wasn’t bad. Sadly, I forgot to charge my phone up overnight before the match and by the time I made it to my seat the battery had died, so I have no pictures of the event to share.

I had expected Wales to win, but hadn’t expected such a one-side match. After scoring after just over a minute, Wales controlled the game. Instead of the intense atmosphere I’d been anticipating, the mood in the crowd was more like that you might find at a cricket match while the home side is steadily accumulating runs against ineffective bowling. When the Ireland fightback hadn’t materialized by the fourth quarter of the game, the celebrations started and the singing grew louder in the steadily falling rain. At least Ireland got a consolation try at the end, but if truth be told they didn’t really turn up for the match.

I got absolutely drenched walking back to the Cardiff residence, but it was worth it for the privilege of seeing a Grand Slam unfold live. I only caught the second half of the final match of this year’s Six Nations, the Calcutta Cup match between Scotland and England, on the radio. This seems to have been the most exciting of the tournament, ending in a 38-38 draw after England had been 31-0 up! Greatest comeback since Lazarus!

But all credit again to Wales for their Grand Slam, a great achievement by any standards. It’s revenge what happened ten years ago, when I was in Cardiff (though not in the ground) for a Grand Slam decider between Wales and Ireland, a frantic and exciting match which Ireland won. Not so much excitement this time, but a far happier crowd of Welsh supporters!

So that’s the St Patrick’s Bank Holiday Weekend over with and I’m now heading back to Ireland. This week, or what’s left of it, is `Study Week’ which means there are no lectures. We have finished six weeks of teaching this term at Maynooth, and there are six more after Study Week but there is another week off looming for Easter. As it happens, I’m attending a small conference in London on Thursday and Friday (of which more soon) so I’m just back in the office tomorrow before flying off again for two days in the capital of Poundland.

Interlude

Posted in Uncategorized on March 15, 2019 by telescoper

Well, it’s St Patrick’s Day on Sunday (17th March), the day before which is a certain rugby match between Wales and Ireland in Cardiff, and the day after which is a Bank Holiday in Ireland. I’m therefore taking a short break to enjoy the long weekend. Normal service will be resumed as soon as possible, but in the meantime there will be a short intermission.