Archive for the Biographical Category

Wednesday at #EAS2025

Posted in Biographical, Euclid, The Universe and Stuff with tags , , , , on June 25, 2025 by telescoper

I spent most of today at the EAS 2025 sessions about Euclid. These were mainly about the Q1 data release I blogged about here, although there were some talks about what to expect about the first full data release (DR1), which is due towards the end of next year (2026), before I retire.

There were three Euclid sessions, one in the morning and two in the afternoon; I’m writing this during the last of these.

I was reminded this morning that the word “plenary” is derived from the Latin plenus, meaning “full”. This explains why there are no free seats for the plenary session, so I had to watch the stream in one of the overflow theatres.

I also attended a lunchtime session about the Square Kilometre Array Observatory (SKAO). This was interesting, though the first full data release from SKAO will not happen until after I’ve retired.

And, to end the day, I’m at a reception and meeting of SKA Ireland, a group campaigning for Ireland to join the SKAO.. There’s win.

EAS 2025 in Cork

Posted in Biographical, Open Access with tags , , , , on June 22, 2025 by telescoper

Tomorrow I’ll be travelling to the fine city of Cork, where I shall be for most of next week, attending the 2025 Annual Meeting of the European Astronomical Society I was planing to travel today, but I have some things to attend to at home tomorrow morning so I won’t get to Cork until late afternoon.

The EAS Annual Meeting is a very large meeting with well over a thousand participants expected. It is held each year in a different European city but, according to tradition, never a capital. Last year it was in Padova (Italy) and the year before that in Kraków (Poland).

I usually enjoy smaller-scale meetings and workshops over these mega-conferences, but I’m looking forward to this one. There will be a strong Maynooth contingent there but I also hope to see some old friends from elsewhere, as well as catching up on some exciting science results.

Talking of science, I am on the Scientific Organizing Committee for this meeting. The programme is very large and diverse and there were a few headaches on the way, but nothing compared to the logistical challenges facing the local organizers; they will probably reach peak stress levels ahead of the opening of the meeting, but I’m sure everything will go well. The Irish National Astronomy Meeting (INAM) was actually held in Cork in 2023. Although a much smaller meeting than EAS, the experience of running that will probably have helped the organizers.

I’m not actually giving a talk at EAS but I will be participating in a panel discussion in a special session on The Future of Scientific Publishing: Strategies and Challenges for Astronomy on Tuesday 24th June. When I saw the initial announcement for this special session, I was was concerned that it would be entirely dominated by representatives of the journal Astronomy & Astrophysics and their publisher EDP Sciences. The first session (9.00 to 10.30) titled “SCIENCE PUBLISHING TODAY AND TOMORROW” is still like that, but the panel discussion in the second session (13.15 to 14.45) “SCIENCE PUBLISHING: A COMMUNITY’S VIEW” is a bit more balanced than that, with a representatives of NASA/ADS and the European Southern Observatory (among others). If I’m given an opportunity to get a word in, I’ll be arguing that traditional journals are unnecessary and obsolete.

Marking Over

Posted in Biographical, Education, Maynooth with tags , on June 9, 2025 by telescoper

Better is the end of a thing than the beginning thereof…

I’ve just graded the last of my assignments for this (academic year). I had a bigger class than usual for Computational Physics this time round, so it took much longer than usual to mark the project component. It always takes a while because I not only have to read and grade the reports, but also look at the code they submit and run it to check that it works. I uploaded the final grades to our system just now and although I finished later than planned I was relieved to see that I’m not the last lecturer to do so!

What happens next is that all the marks from all the modules will be collated and cross-checked. Then we will have a meeting of the Departmental Examination Board (on Thursday morning) to go through the results in the presence of our External Examiner. Since this is the end of the academic year, we will also look at the final grades of those students who are completing their studies this year in order to consider the classification of their degrees. There may also be some who are not qualified to graduate and may have to repeat failed examinations or other assessments. Another (pleasant) duty of our Examination Board on Thursday will be to award prizes for the best performance, not just for finalists but for students at every stage, including the first year.

I was teaching a module for the Department of Engineering last Semester so I should attend their final Examination Board too. Many of our students at Maynooth take joint degrees, in which case their final degree classification depends on grades from two Departments. For that reason, there is an overall Examination Board at which the marks are combined. Fortunately, only the Head of Department (who is not me) has to attend that one.

If all goes to plan, students will receive their final marks on Friday 27th June. It’s a lengthy process so as to allow plenty of opportunities to check and validate the different stages. After that, on Tuesday 1st July, we have a consultation day at which students can ask for advice about repeat examinations, etc, and after that we have to make sure repeat examinations are available. The repeat examination period is Wednesday 6th August to Tuesday 19th August.

Between the end of this week and the repeat exams, perhaps I’ll get a bit of time to do some research…

R.I.P. Edmund White (1940-2025)

Posted in Biographical, LGBTQ+, Literature, R.I.P. with tags , on June 6, 2025 by telescoper

I was saddened to hear of the death on Tuesday at the age of 85 of novelist Edmund White. Like many gay men of my age I read his semi-autobiographical novel A Boy’s Own Story as a teenager, and it had a profound effect on me.

It’s the story of an adolescent boy coming to terms with his sexuality in the American mid-West during the 1950s. It is as frank about the description of gay sex as it is truthful about the confusion that goes with being a teenager. When I bought it I didn’t realize it was going to be so sexually explicit, as the whole subject of gay sex was very much taboo in those days. I didn’t think it was possible to write about such things in such a matter-of-fact way and at the same time so beautifully. The book is also unflinching in its description of the personality flaws of the central character.

The Irish Times has a collection of reflections by various writers on Edmund White that say far more, and far more eloquently, than I ever could. I’ll just say, as a (now) sixty-something gay man that Edmund White helped me on my journey to self-acceptance when I was a struggling teenager all those years ago, and for that I will always be profoundly grateful.

Rest in peace, Edmund White (1940-2025).

To Wexford and Back

Posted in Biographical with tags , , , on June 5, 2025 by telescoper

I’m currently on the train travelling back from Wexford to Dublin. The WIFI is a bit flaky so I’ll post more about the reasons for this trip later on, when I get home.

For the moment, I’ll just say that Wexford (Irish name: Loch Garman) is a picturesque historic town at the  mouth of the River Slaney, near the Southeastern corner of Ireland. I had a nice walk around this morning. It’s a pleasant place to stroll about; the streets still follow an obviously mediaeval layout, and parts of the old city wall are still standing.

The train journey from Dublin is very enjoyable, right along the coast for a while, then heading inland, then along the banks of the Slaney. The train isn’t very fast, but it is comfortable and costs less than €10 each way. There’s only a single line from Wicklow to Wexford, which severely limits the number of trains that can operate on the route. The same is true of the Maynooth-Sligo service, actually.

When I moved to Ireland (about 7 1/2 years ago), I planned to travel around and see some of the historic places. Workload issues and the pandemic put paid to that idea for a while, but I have a bit more time to travel now.

P.S. Curracloe Beach, a few miles North of Wexford, stood in for Omaha Beach for the film Saving Private Ryan. I didn’t have time to go there.

The Leaving

Posted in Biographical, Education, mathematics, Maynooth with tags , , , , , on June 4, 2025 by telescoper

Today is not only a significant date for me (in more ways than one), but it’s important for many young people in Ireland because the Junior Certificate and Leaving Certificate examinations both start today, so the first thing I need to do is wish everyone starting their examinations the very best of luck!

Among other things, the results of the leaving certificate examinations are important for September’s university admissions. This year the grade inflation that occurred during the pandemic years will be reduced, though it is not yet clear how. Whatever happens is likely to have a big impact on student recruitment to third-level institutions.

In the system operating in England and Wales the standard qualification for entry is the GCE A-level. Most students take A-levels in three subjects, which gives them a relatively narrow focus although the range of subjects to choose from is rather large. In Ireland the standard qualification is the Leaving Certificate, which comprises a minimum of six subjects, with many students taking more than this. This gives students a broader range of knowledge at the sacrifice (perhaps) of a certain amount of depth; it has been decreed for entry into this system that an Irish Leaving Certificate subject counts as about 2/3 of an A-level subject for admissions purposes, so Irish students do the equivalent of at least four A-levels, and many do more than this. It’s also worth noting that all students have to take Mathematics at Leaving Certificate level.

One can choose to do Leaving Certificate subjects at Ordinary or Higher level and there’s quite a big difference between the two, especially in Mathematics (of which more below).

Overall I prefer the Leaving Certificate over the UK system of A-levels, as the former gives the students a broader range of subjects than the latter (as does the International Baccalaureate). I would have liked to have been allowed to take at least one arts subject past O-level, for example.

For University admissions points are awarded for each paper according to the marks obtained and then aggregated into a total CAO points, CAO being the Central Applications Office, the equivalent of the UK’s UCAS. This means, for example, that our main Science pathway at Maynooth allows students to study Physics without having done it at Leaving Certificate level. This obviously means that the first year has to be taught at a fairly elementary level, but it has the enormous benefit of allowing us to recruit students whose schools do not offer Physics.

There is however a big problem with Mathematics. It was decided some years ago that students would get 25 extra CAO points if they got a mark of at least 40% in Higher Mathematics. This has led to more students taking the subject, which is good, but there are signs that this may have led to a decline in standards. If, for example, the marking is such that a fixed proportion of students get the top grade but more weaker students take the examination, that means that standards fall at the top end. For more discussion, see here.

Anyway, our Theoretical Physics & Mathematics course requires a good result in Higher Mathematics for entry. Will changes to the marking of Higher Mathematics this year make it harder for students to make the grade? We’ll just have to wait and see.

Moreover, since the pandemic struck, students have been able to choose to answer questions from a limited range of sections on the mathematics examination papers. That means that students can get very high grades despite knowing nothing about a big chunk of the syllabus. That matters most for subjects that require students to have certain skills and knowledge for entry into University, such as Physics. I taught part of our first year Mathematical Physics course in Maynooth for about 5 years. It was noticeable how the fraction that were comfortable with basic differentiation and integration was falling. Will this trend accelerate? Again, we’ll just have to wait and see…

Lá Saoire i mí Mheitheamh

Posted in Biographical, History, Irish Language, Maynooth on June 2, 2025 by telescoper

It’s a Bank Holiday Monday here in Ireland, which makes for a nice end-of-term break for some of us. Not all staff had exams early enough to finish in time like I did, however, and no doubt some had to spend the weekend marking exam scripts. I am fortunate to have been able to accomplish everything I intended over the weekend – nothing at all – and today I’ll be able to recover from that exertion.

The June Bank Holiday (Lá Saoire i mí Mheitheamh) in Ireland is the equivalent of last week’s late May Bank Holiday in the UK, in that both have their origin in the old festival of Whitsuntide (or Pentecost) which falls on the 7th Sunday after Easter. Because the date of Easter moves around in the calendar so does Whit Sunday, but it is always in late May or early June; this year it falls on Sunday 8th June.

As if in celebration, the honeysuckle in my garden has started to flower:

The day after Pentecost was traditionally a holiday known as Pentecost Monday or Whit Monday. This enabled people to attend extra church services and organize local fairs and cultural events. Pentecost Monday became a public holiday in Ireland following the Bank Holidays Act 1871 which applied before Ireland became independent. Following the Holidays (Employees) Act 1973, this holiday was moved to the First Monday of June. This new date was first observed in 1974. This is why
we have the first Monday in June off work instead of the last Monday in May.

Although I’m only at beginners’ level in Irish, the phrase Lá Saoire i mí Mheitheamh gives me a chance to bore you about it. It’s actually quite a straightforward phrase until you reach the last word. “Lá” means “day” and “Saoire” means “leave” or “vacation” so “Lá Saoire” means “holiday”; “i” is a prepositional pronoun meaning “in” and “mí” means “month”. So far so good.

The word for June, however, is Meitheamh (at least when it is in the nominative singular case). Irish is an inflected language, which means that words change form according to their grammatical function. As an Indo-European language, Irish is distantly related to Latin which has six grammatical cases for nouns (actually seven if you count the rarely used locative case). Irish has only four cases – there’s no ablative and, curiously, no distinction between nominative and accusative. That leaves nominative, dative, genitive, and vocative. The dative – used after simple prepositions – is only rarely distinct from the nominative so basically the ones you have to learn are the genitive and the vocative.

In Latin cases are indicated by changes to the end of a word, but in Irish they involve initial mutations. In the example of “mí Mheitheamh” meaning “month of June”, requiring the genitive form of “June”, the initial consonant “M” undergoes lenition (softening) to sound more like a “v”. In old Irish texts this would be indicated by a dot over the M but in modern orthography it is indicated by writing an “h” after the consonant. This is called a séimhiú (pronounced “shay-voo” ). Note the softened m in the middle of that word too but it’s not a mutation – it’s just part of the regular spelling of the word, as is the -mh at the end of Meitheamh. There’s also a softened “t” in the middle of Meitheamh which makes it vrtually disappear in pronunciation. Meitheamh is thus pronounced something like “Meh-hiv” whereas “Mheitheamh” is something like “Veh-hiv”.

Gheobhaidh mé mo chóta…

Season Finale at the National Concert Hall

Posted in Biographical, Music with tags , , , , on May 31, 2025 by telescoper

It was very nice to be able to put the marking of examinations behind me and travel into Dublin last night for the final concert of the season at the National Concert Hall in Dublin. It seems the former NSO is now to be called the NSOI, the National Symphony Orchestra Ireland, no doubt for some sort of corporate branding reason. Anyway, last night they were under the direction of guest conductor Anja Bihlmaier for a performance of the Symphony No. 9 by Gustav Mahler.

Looking back through my previous posts about Mahler I see that I haven’t previously written anything about his 9th Symphony. I am pretty sure that last night was the first time I’ve heard it live, although I have it on CD. Mahler wrote it between 1908 and 1909, immediately after finishing Das Lied von der Erde which is a symphony in all but name and which should really be his 9th. He was a very superstitious man, however, and he was worried about the Curse of the 9th, so it wasn’t given a number. After the acual 9th Symphony he went on to compose another, his 10th (though really the 11th), though he didn’t quite finish it before his death in 1911. I hope this clarifies the situation.

The 9th Symphony is a substantial piece last about 80 minutes in performance. That’s far from his longest, but it does justify it being performed on its own. The structure is unusual, with two very long slow movements either side of a pair of shorter movements, a scherzo and a rondo. The former is constructed from dance-like segments, and much of it is in 3/4 time; it reminded me a little of Ravel’s La Valse, which starts out like a standard waltz but disintegrates into a nightmarish parody of that form. The rondo described as “Rondo-Burleske” is very fragmented, grotesque and at times raucous, and also very modern-sounding. It has been described as “ferocious outburst of fiendish laughter at the futility of everything”. I think the final adagio movement is the best, and it brought out the best of the NSOI. The long sweeping passages played by only the strings, with the cellos and double-basses providing deep foundations to Mahler’s sumptuously textured harmonies. Absolutely gorgeous.

The Symphony ends very quietly indeed. Anja Bihlmaier kept her baton in hand for quite a long time before putting it down and letting the applause start. A little silence at the end of a piece of music is a very good thing: it allows the members of the audience a brief moment to reflect on what they have heard. It irks me when people starting clapping and shouting before the sound has even died away.

Anyway, when it was over, the applause was tumultuous. I’ve already mentioned the string sections, but ll the members of the NSOI contributed with outstanding contributions from the woodwinds and brass too.

There being only one item on the menu there was no wine break, but not having an interval meant that I had time to have a drink at the end before heading back to Pearse station to get the train back to Maynooth. In the old days the NCH used to treat the audience to a free prosecco after the season finale, but not any more. I had to buy my own.

Well, this season may be over, but the booklet for next season is already out. I had a look through it on the train home. I plan to resume my Friday-night concert-going at the NCH in September, but there will be more music before then.

A Dream of AI

Posted in Artificial Intelligence, Biographical with tags , , on May 30, 2025 by telescoper

I noticed this, apparently genuine, screengrab circulating on social media:

Can it be? Can 2025 be just a dream and we’re really still in 2024? Did Trump not really get elected? More importantly, am I still on sabbatical? If so, why do I have a desk full of projects to grade? And why am I not in Barcelona?

I checked it myself and found this:

Someone at Google obviously tried to fix something by hand and didn’t entirely succeed.

Do you still think that AI isn’t a bubble waiting to burst?

Congratulations, Dr Gallagher!

Posted in Biographical, Maynooth, The Universe and Stuff with tags , , , on May 26, 2025 by telescoper

This week is off to a good start! This morning my postgraduate research student Aoibhinn Gallagher passed a viva voce examination on her thesis Cosmological Structure Formation Using Wave Mechanics. There will be a few formalities to deal with, some minor corrections to make, various forms to fill in, and the result has to be approved by the examination board, and so on, but basically that’s a job well done. Congratulations, Dr Gallagher!

Left to Right: Dr John Regan (internal examiner), Aoibhinn Gallagher (PhD candidate), and Prof. Cora Uhlemann (external examiner).

P.S. You can get an idea of some of the content of Aoibhinn’s thesis here.