Hi all,
1. IAA LECTURE, Wed 29 Nov, 7.30 p.m. "Antimatter in the Milky Way" by Dr Stuart Sim (ARC/QUB). The 'missing antimatter' problem is one of the major mysteries in our understanding of the universe. All versions of the Big Bang model indicate that ordinary matter and antimatter should have formed in equal quantities, and then mutually annihilated each other. The very fact that we are here, in a universe made almost exclusively of ordinary matter (ignoring Dark Matter and Dark Energy in this context), indicates that there's something missing in the theory! But antimatter does exist, as occasionally single antimatter particles are created by cosmic rays in our atmosphere; and it has been created in the lab in very small quantities, so it's real. But new research, in which Dr Sim was involved, is throwing some light on the universe's missing antimatter problem.
Although it seems an esoteric subject, it's actually both fascinating and fundamental, and the lecture will be presented at a popular and understandable level.
Fans of Dan Brown may have read 'Angels and Demons' which is based on the creation of antimatter in a lab. See http://angelsanddemons.web.
SYNOPSIS: "Antimatter in the Milky Way" The subject of our work is understanding the current antimatter content of our Galaxy, and where this comes from. I will talk about the evidence (mostly from gamma-ray observations) that there is antimatter in our Galaxy and then discuss some of the ideas about how it is being produced.
There is also an interesting related article in the latest issue of New Scientist: I got his from Danny Collins: There's an interesting article with local relevance in the latest NS issue on the latest research into the big bang and its immediate aftermath. Very briefly, it describes electron-positron plasma, matter/antimatter annihilation, and possible bearing on nuclear fusion power research. The work of a group at QUB led by Gianluca Sarri is featured, namely using ultra-short/high power lasers to knock electrons off atoms, slam them into a metal block, and to then look for a beam of photons, and a resultant beam of electron-positron pairs. Think all the cliches about herding cats etc, to the nth degree...
Wed 29 November 7.30 p.m., Bell Lecture Theatre, Physics Building, QUB. Free admission, including light refreshments. Free parking on QUB campus after 5.30 p.m.
2. COSMIC CONNECTIONS EXHIBITION, Dungannon, 2-29 December.
IAA member Martin Campbell from Dungannon will be exhibiting some of his excellent astronomy photos at
Ranfurly House Arts and Visitors Centre, 26 Market St, Dungannon, BT70 1AB, from December 2 to December 29 2017. Open 9.00 – 17.00. Admission Free.
3. ISS. A new series of evening passes over Ireland commences on 29 Nov. Details for your own location, along with lots more such as Iridium Flares, at www.heavens-above.com
4. Flying Phaethon flyby! The asteroid 3200 Phaethon, with a diameter of 5km, which is associated with the Geminid meteor shower, is undertaking a close approach to the Earth, with closest approach on Dec 17 – at a distance of 0.069 AU. It gets as bright as mag 10.7 on Dec 14.
5. IAA Observing Evenings. The next of these events will be 15 – 16th December, at Delamont Country Park, near Killyleagh, Co Down. The format is that if it's clear on the Friday evening, we go ahead, but if it's cloudy, we try again on the Saturday evening. Check the IAA website www.irishastro.org , each of those afternoons to see if it's 'Go' or No-Go'.
6. Telescope for sale:
Noel Mc Cormack is offering a used Meade ETX70AT telescope & accessories, about 10 years old. Price about £80. Location: Belfast. Telephone 0044 (0) 28 90660015
7. IAA Photo Exhibition, Carrickfergus Our very successful photo exhibition continues at its latest venue, Carrickfergus Museum and Civic Centre, until 6 January. Be sure to watch the excellent video display of some recent aurorae and other phenomena such as eclipses and conjunctions. Also on display are various antique telescopes and other astronomical equipment on loan from Armagh Observatory and Planetarium and myself, and some space items on loan from Dr Andy McCrea. It continues there until 6 January.
For further information please contact Carrickfergus Museum, T: 028 9335 8241 or E: carrickfergusmuseums@
8. Catch A Star Competition. The aim of the Catch a Star programme is to encourage secondary school students around Europe to express their creativity through autonomous work, to strengthen and expand their astronomical knowledge and skills, and to help the spread of information technologies in the educational process. The Catch a Star contest is the result of a collaboration between the European Association for Astronomy Education (EAAE) and the European Southern Observatory (ESO). The deadline for all entries is 17:00 CET on 20 December 2017. Learn more about this competition here: http://www.eaae-astronomy.org/
9. NASA invites names for next New Horizons target body.
See http://www.frontierworlds.org/ and
https://www.aol.co.uk/video/
But seriously, how about a campaign from all Irish astronomers to have it named 'Edgeworth', after Kenneth Edgeworth of Streete, Co Westmeath, who predicted the existence of the large group of small bodies in the outer solar system, of which this body is one. The accepted name for this band of smallish bodies is the Kuiper Belt, named after the Dutch-American astronomer who later gave it more publicity. However many local astronomers refer to it as the Edgeworth-Kuiper Belt. We are unlikely to get the accepted name for the KB changed, but naming this particular object after Edgeworth would give some long-overdue recognition to a noted local astronomer. So if you agree, vote Edgeworth, and pass it on!
See https://en.wikipedia.org/wiki/
10. IFAS Calendars – UPDATE: I have now got copies of the 2018 edition of these calendars for those who ordered them via me. I'll bring them to the meeting on 29 Nov, and if you can't attend that, to the meeting on 13 December.
11. Archaeoastronomy lecture, Crossmaglen, Co Armagh, 7 December. "Facing the Sun". This talk asks (and answers) the intriguing question - why were solstitial and, in a few cases, orientations close to sunrise and sunset near the equinoxes incorporated into passage tomb architecture? This will be given by the well-known authority on this topic, Dr Frank Prendergast. The talk is based on a major article in the forthcoming winter issue of Archaeology Ireland by Frank Prendergast and colleagues. www.
Facing the Sun: understanding the significance of the winter solstice in passage tomb architecture.
December 2017 marks fifty years since M. J. O' Kelly first investigated the winter solstice at Newgrange. O'Kelly subsequently recorded direct sunlight entering Newgrange through the 'especially contrived slit which lies under the roof-box at the outer end of the passage roof' on 21 December 1969.
The discovery of this prehistoric phenomenon at Newgrange, dating back over 5000 years, captured the public interest and imagination at that time and ever since.
In a major article in the forthcoming Winter 2017 Archaeology Ireland (publication 4 December), leading experts in this field, Frank Prendergast, Muiris O'Sullivan, Ken Williams and Gabriel Cooney, ask (and answer)
Why were solstitial and, in a few cases, orientations close to sunrise and sunset near the equinoxes incorporated into passage tomb architecture?
Examining positional astronomy and solar alignments, the changing skyscape through the year and the sun at solstice, the authors consider solstitial alignments in Irish Passage Tombs, including Newgrange, Dowth, Loughcrew (Co. Meath) and Townley Hall (Co. Louth) passage tombs and draw specifically on evidence from a number of other sites, such as Slieve Gullion (Co. Armagh); Thomastown (Co. Meath) and Knockroe (Co. Kilkenny).
This major article features stunning images from renowned photographer Ken Williams and provides a major introduction to the fascinating area of Archaeoastronomy and Cultural Astronomy.
12. Global Science Opera, 13 December 2017; Moon Village — new PR movie
On Dec. 13th, 2017 at 2:00 PM GMT, the Global Science Opera will livestream the opera "Moon Village". This science opera will be performed around the planet as result of a year-long creative inquiry shared by schools, universities, and art institutions in 25 countries. It will communicate the process, science and technology of the European Space Agency's Moon Village. The "Moon Village" Global Science Opera is the first opera initiative to produce and perform operas as a global community and is a cooperation organized by a vast network of institutions. The opera may be viewed online on Dec. 13th, 2017 at 2:00 PM GMT here: https://hnytt.no/se-tvh-live/
Find out more at http://globalscienceopera.com/
13. DIAS PUBLIC LECTURE, 15 Dec; "The Physics and Astrophysics of Merging Neutron-Star Binaries" Dublin Institute for Advanced Studies – School of Theoretical Physics Statutory Public Lecture 2017. Friday 15th December 2017 at 6.00 p.m. By: Prof. Dr. Luciano Rezzolla (Goethe University of Frankfurt).
Edmund Burke Theatre (Room 1008), Arts Building, Trinity College Dublin.
Admission by ticket only, via DIAS website.
Abstract: I will argue that if black holes represent one the most fascinating implications of Einstein's theory of gravity, neutron stars in binary system are arguably its richest laboratory, where gravity blends with astrophysics and particle physics. I will discuss the rapid recent progress made in modelling these systems and show how the inspiral and merger of a binary system of neutron stars is more than a strong source of gravitational waves. Indeed, while the gravitational signal can provide tight constraints on the equation of state for matter at nuclear densities, the formation of a black-hole–torus system can explain much of the phenomenology of short gamma-ray bursts, while the ejection of matter during the merger can shed light on the chemical enrichment of the universe.
Prof. Dr. Luciano Rezzolla is presently the Chair of Theoretical (Relativistic) Astrophysics and Director at the Institute for Theoretical Physics (ITP) of the Goethe University of Frankfurt, Germany. He is also Senior Fellow at the Frankfurt Institute of Advanced Studies (FIAS).
14. IAS Event at Dunsink Observatory, 15 December: "Stars, Comets and Mince Pies". See www.irishastrosoc.org
15. FUTURE EVENTS ALERT
* IAA New Year Party: 6 January 2018, Comber, Co Down. More details later.
* Galway Astrofest: Saturday 27 January 2018. More details later.
*IAU C1 Exobiology WS - Astrobiology Introductory Course'18, 4-10 March. The third session of the Astrobiology Introductory Course will be held from 4 to 10 March 2018 at the Ornithological Reserve of le Teich (33, France). Courses are designed for students preparing their PhD thesis in Astronomy, Geology, Chemistry, Biology, or History/Philosophy of science and any students wishing to acquire interdisciplinary training in astrobiology to complete their initial training and to be able to address questions about the origins of life, its terrestrial evolution, and its distribution in the Universe. The deadline for applications is January 15th, 2018. For program and registration, please see the website: http://www.exobiologie.fr/red/
*European Week of Astronomy and Space Sciences (EWASS2018). This will be in Liverpool, from 3 to 8 April 2018. See http://eas.unige.ch/EWASS2018/
* International Day of Light, 16 May 2018. Plan ahead and register your event in the official International Day of Light 2018 calendar! Following the highly successful International Year of Light and Light-based Technologies in 2015, May 16th, the International Day of Light, will provide an annual focal point for the continued appreciation of the central role that light plays in the lives of the citizens of the world. The broad theme of light allows many different sectors of society to participate in activities to raise awareness of science and technology, art and culture, and their importance in achieving the goals of UNESCO — education, equality and peace.
A good opportunity to highlight (!) light-pollution! And promote Earth Hour as well.
Register your event by filling out the form: http://bit.ly/2xLvvDK
* International Planetarium Society, 1–6 July 2018, Toulouse, France. More Information: http://www.ips-planetarium.
* Robotic Telescopes, Student Research and Education (RTSRE) & InterNational Astronomy Teaching Summit Conferences, 23-27 July 2018. The 2nd annual Conference on Robotic Telescopes, Student Research and Education (RTSRE) will be held in Hilo, Hawai'i from July 23-25, 2018. This conference series focuses on building a sustainable community around the educational, technical, and student research uses of robotic telescopes. The conference will be co-located with the interNational Astronomy Teaching Summit (iNATS) from July 25-27, 2018 providing worldwide networking opportunities and hands-on workshops designed to expand educators' teaching strategy toolkit designed for innovative astronomy professors, teachers, and outreach professionals. Find more information here: http://rtsre.net/
16. Interesting Weblinks (Disclaimer - Use of material herein from various sources does not imply approval or otherwise of the opinions, political or otherwise, of those sources). NB: If the title in the weblink does not indicate the subject matter, I give a brief simple intro before the link. I may also comment about the link afterwards.
Astrophysics
Galactic microquasar sheds light onto distant galaxies https://www.sciencedaily.com/
First proper motions measured in another galaxy https://www.sciencedaily.com/
COSMOLOGY:
The universe before ours? https://www.sciencedaily.com/
Earth & Moon
https://www.aol.co.uk/travel/
http://www.dailymail.co.uk/
Combining sources to study near-Earth sub-storms https://www.sciencedaily.com/
http://www.dailymail.co.uk/
Solar System
SPACE
http://www.dailymail.co.uk/
http://www.dailymail.co.uk/
17. TWITTER Follow the IAA on Twitter: @IaaAstro.
18. JOINING the IRISH ASTRONOMICAL ASSOCIATION. This link downloads a Word document to join the IAA. http://documents.irishastro.
If you are a UK taxpayer, please tick the 'gift-aid' box, as that enables us to reclaim the standard rate of tax on your subscription, at no cost to you. You can also make a donation via Paypal if you wish: just click on the 'Donate' button. See also www.irishastro.org .
Clear skies,
Terry Moseley
