We are pleased to announce that the 11th international conference on Hot Subdwarf Stars and Related Objects will be held at Armagh Observatory and Planetarium on 11th – 15th September 2023. To indicate your interest in participating, please send an email with your name, institute and email address to email@example.com
Registration and Deadlines
- Please register for the conference here.
- Please pay here to complete your registration for sdOB11, or here for the sdOB11+AMCVn5 ticket (please use code CONFAOP23).
- Please submit your contribution title and abstract here.
Early registration: July 16th.Abstract submission (talk/poster): July 16th. Hotel Reservation (Armagh City Hotel discounted rate): July 16th.
The conference programme will consider the following topics:• The origin and evolution of hot subdwarf stars : standard and alternative pathways• Substellar and planetary companions to hot subdwarf stars• Hot subdwarfs in the field, clusters, and galaxies• Impact of large surveys and hot subdwarf population studies• Atmospheric properties of hot subdwarf stars• Hot subdwarfs in binary and multiple star systems• Pulsating hot subdwarfs and asteroseismology• Hot subdwarfs as laboratories for stellar physics : convection, diffusion, atomic data, tides, mergers, common envelopes• Links to extremely low mass white dwarfs and other related objectsPlans for the social programme currently include a welcome reception, an Irish night at the Navan fort, ancient seat of the Kings of Ulster, an excursion into the countryside around Armagh including traditional Irish industry, tours of Armagh City and the Armagh Observatory, and the conference dinner. Subject to demand, there will be the possibility of a tour to the Giant’s Causeway and Bushmills distillery on Saturday 9 September.
Armagh is served by three airports:
- Belfast International (BFS)
- Belfast City (BHD)
- Dublin International (DUB)
Travel to Armagh from the airport is via bus, taxi or rented car. There is no train station in Armagh. The nearest one is in Portadown.
Delegates are responsible for ensuring their own eligibility to enter the UK and, if required, for obtaining the appropriate visa. The organisers will issue a formal letter of invitation to any bona fide delegates that require such a letter for visa or funding purposes. If required, please write to firstname.lastname@example.org (Subject: sdob11 invitation) and provide your full name, institute, and contact details.
A block of 40 rooms has been reserved for the nights of Sunday 10 – Thursday 14 September at the Armagh City Hotel. The room booking is inclusive of full breakfast, free wifi, use of the leisure club, complimentary car parking, and VAT. To book a room, delegates must contact the hotel’s Central Reservations office on (+44)28 3751 8888 and choose option 1, or email email@example.com. A credit/debit card number will be required to guarantee the booking. You must quote “Armagh Observatory” at the time of booking to qualify for the discounted rate. The block reservation will expire six weeks prior to the conference. Delegates wishing to stay additional nights should book early to avoid disappointment.
The Visit Armagh webpages offer more recommendations for accommodation, including self-catered options. You may find other options not listed on the above websites from Airbnb and booking.com.
Four low-cost rooms are available on the AOP site. These will be allocated strictly on the basis of financial need. Enquiries and circumstances should be sent to Aileen McKee (firstname.lastname@example.org) before June 11th.
On the Hertzsprung-Russell diagram subluminous O and B stars lie below the massive O and B stars on the upper main sequence, and above the upper (young) end of the white dwarf sequence. They are all evolved stars, mostly about half a solar mass, mostly converting helium to carbon in their cores, and mostly “stripped” of their hydrogen outer layers. Most have previously finished hydrogen-burning and become red giants, where a nearby companion star has removed their outer layers. Despite this general picture, there are many, many, other star histories that could make hot subdwarfs of different types, either as the product of a collision between two white dwarfs, as the remnant of a star that failed to become a red giant, or by means as yet unknown. The world’s largest telescopes including ESO’s VLT and SALT, and spacecraft including Gaia, Kepler and TESS are transforming our view of these often exotic stars, revealing peculiar surface chemistries, remarkable binary orbits and puzzling pulsation properties. sdOB11 will provide an opportunity to share latest progress and address unsolved problems.
Scientific Organising Committee: Simon Jeffery (chair), Valerie Van Grootel, Stéphane Charpinet,
Zhanwen Han, Maja Vuckovic, Stephan Geier, Annalisa Calamida, Thomas Kupfer, Brad Barlow,
Veronika Schaffenroth, JJ Hermes, Holly Preece, Andrzej Baran
Local Organising Committee: Marc Sarzi, Heather Alexander, Simon Jeffery, Gavin Ramsay, Sinead Mackle, Laura Scott, Aileen McKee, Ceara Ryan
- Stephane Charpinet
- Matti Dorsch
- Simon Jeffery
- David Kilkenny
- Marilyn Latour
- Jiangdan Li
- Zhenwei Li
- Jerry Liu
- Anthony Eugene Lynas-Gray
- Xiao-Yu Ma
- John Mora
- Roy Østensen
- Asish Philip Monai
- Thomas Rauch
- Eduardo Alfredo Arancibia Rojas
- Veronika Schaffenroth
- Laura Scott
- Wenchao Su
- Xianfei Zhang