Cosmo-torun May 2002

cosmo-torun@cosmo.torun.pl

3 participants
5 discussions

proposition for masters students 2002/2003
by Boud Roukema 23 May '02

23 May '02

---------------------------------------------------------------------- Proposition for Supervising Masters (Magister) projects at TCfA for Oct 2002 - Sep 2003 Supervisor: B. Roukema Number of students: up to 3-4 students is possible Title: Observational Constraints on Cosmological Parameters Description: There are many possible projects which could be done as a master's thesis project, in using publicly available archival data from observational surveys to constrain one or more of the local or global cosmological parameters, either those related to shape (curvature, topology) or maybe also those unrelated to shape ("dark energy"). The precise projects would be chosen in discussion with the masters students during Oct-Nov 2002. Some examples would include further development and application of the "Dark Energy" software package which has been worked on during the "Shape of the Universe" monograph course: http://www.astro.uni.torun.pl/sympa/shape-univ/ Requirements: - basic knowledge in astronomy, physics, mathematics, computing skills - desire to measure something about the shape of the Universe - willingness both to learn from and to teach others interested in observational cosmology at TCfA - willingness to learn the following practical skills: touch-typing, emacs, \LaTeX, usage of the sympa mailing lists - willingness to participate in the "Shape of the Universe" monograph course and/or Bronek Rudak's semester 9 "Kosmologia" course: http://www.ncac.torun.pl/~bronek/KOS.html - nie ma problemu je�li student magisterowy nie (jeszcze) dobrze m�wi� po angielsku ----------------------------------------------------------------------

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XXI Texas Symposium - REGISTRATION NOW OPEN! (fwd)
by boud＠astro.uni.torun.pl 21 May '02

21 May '02

Hi everyone, I'm not that eager to go to an "expensive hotel chain" meeting, but if I miss the northern summer cosmo meetings then at least I could go to one big cosmo meeting this calendar year... Cze�� Boud > ---------- Forwarded message ---------- > Date: Mon, 20 May 2002 17:44:37 +0200 (CEST) > From: XXI Texas Symposium <texaflor(a)arcetri.astro.it> > Subject: XXI Texas Symposium - REGISTRATION NOW OPEN! > Texas in Tuscany XXI Symposium on Relativistic Astrophysics Florence, Italy, December 9-13, 2002 FIRST CIRCULAR (May 2002) Introduction The XXI Texas Symposium on Relativistic Astrophysics will be organized in Florence, 9-13 December 2002, by the National Institute of Astrophysics - Arcetri Astrophysical Observatory, in collaboration with the National Institute of Nuclear Physics and other scientific Institutions (the complete list will appear in a subsequent announcement). The meeting will be held in the Palazzo dei Congressi, in the historic center of the city, and will consist of Invited Review Talks (IT) in the morning (each lasting about 40 minutes) and Joint Discussions (JD) during the afternoon. Invited Talks will review recent developments in various fields in Astrophysics, Cosmology and related issues of Physics of Gravitation and Elementary Particles. Joint Discussions will cover specific areas with a number of shorter invited talks (about 20 minutes each). In addition, participants will be able to propose poster papers covering their recent research. The goal of the meeting is to provide a general review of the status and the prospects of research for a diversified audience of astrophysicists and physicists. How to reach Florence Florence can be reached directly by airplane from several major European cities. Alternative airports with international connections are Bologna or Pisa (both about 1 hour train ride from Florence). Another alternative is Rome (the train ride from the Rome Central Station Termini to Florence can be as short as 95 minutes) or Milan (the train ride from the Milan Central Station to Florence takes almost 3 hours). Please note, however, that both in Milan and in Rome the trip from the Airport to the Central Station will take about one additional hour. Accommodation The Organizers have selected a travel agency in Florence to handle all the problems connected with accommodation. The Organizers will not be able to help in any other way with this matter. Block reservations in various hotels are being made, which will be assigned on a first-come-first-served basis until November 15, 2002. Participants who want to arrange directly their own accommodation, or to contact a different travel agency are of course free to do so; they are however advised to book their accommodation as soon as possible, given the strong touristic pressure on Florence. Booking will be firm after a deposit equal to the cost of the first night in the chosen hotel. The quoted costs include breakfast, and all applicable taxes. The deposit will be acknowledged in the final bill, to be paid by the participant directly at the hotel upon leaving. Participants who want to leave earlier than initially arranged must notify the hotel at least 24 hours in advance. Cancellations will be possible only until November 15, 2002; in these cases the deposit will be returned less a 30% handling fee. The accommodation form is now available at http://www.arcetri.astro.it/~texaflor/accommodation_first.html Registration The registration fee for the Symposium will be 300 Euros if paid by November 1 and 400 Euros thereafter. This will cover participation, coffee breaks and a personal copy of the Proceedings. The registration form is now available at http://www.arcetri.astro.it/~texaflor/registration_first.html Program The following topics will be covered by Invited Talks and (in some cases) additional Joint Discussions: - PHYSICS AROUND THE BIG BANG - THE DEVELOPMENT OF THE EARLY UNIVERSE - COSMOLOGICAL PARAMETERS - THE DAWN OF LIGHT IN THE UNIVERSE - COSMOLOGICAL BACKGROUND - DARK MATTER AND GRAVITATIONAL LENSES - LARGE SCALE STRUCTURES AND CLUSTERS OF GALAXIES - GAMMA RAY BURSTS - ACTIVE GALACTIC NUCLEI - SUPERNOVAE, REMNANTS AND COLLAPSED STARS - BLACK HOLES - GRAVITATIONAL WAVES - COSMIC-RAY AND GAMMA-RAY ASTRONOMY - NEUTRINO PHYSICS AND ASTRONOMY Invited speakers A partial list of invited speakers includes: R. Blandford, C. Cesarsky, A. Fabian, F. Halzen, A. Lasenby, B. Leibundgut, P. Madau, I. Novikov, B. Schutz, P. Steinhardt, V. Trimble, G. Veneziano, M. Vietri, S. White. The program with the complete list of speakers and convenors of the Joint Discussions will appear on the web at http://www.arcetri.astro.it/~texaflor/program.html. The Proceedings of the Symposium will include the invited reviews and the presentations at the joint discussions (no posters). Scientific Organizing Committee F. Pacini (Chair, Italy), M. Baldo Ceolin (Italy), M. Rees (UK), R. Barbieri (Italy), V. Rubin (USA), C. Cesarsky (ESO), G. Setti (Italy), A. Gimenez (ESA), J. Silk (UK), G. Hasinger (Germany), M. Tavani (Italy), R. Kolb (USA), Y. Totsuka (Japan), R. Manchester (Australia), V. Trimble (USA), I. Novikov (Denmark), G. Veneziano (CERN), A. Olinto (USA), L. Woltjer (France) Local Organizing Committee M. Salvati (Chair), R. Bandiera, L. Falai, R. Maiolino, F. Mannucci, A. Marconi, E. Masini, N. Nagar. Further information: http://www.arcetri.astro.it/~texaflor/ e-mail: texas_florence(a)arcetri.astro.it fax ++ 39 055 220039

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astro-ph/0205155 another step in cosmo-topology...
by Boud Roukema 13 May '02

13 May '02

Cze�� wszystkim, An interesting paper by Rocha et al., a European collaboration (including Krzyszek G�rski) on COBE analysis of equal-side-length torus models of the Universe: http://de.arXiv.org/abs/astro-ph/0205155 They use the word "asymmetric" to talk about the possibility that the side lengths might be unequal. Given the absence of any serious physical theory for the global shape of the Universe, it seems best, IMHO, to keep all options open... Pozd, Boud

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Paddy+Tirth: DE & DMatter same thing?
by Boud Roukema 09 May '02

09 May '02

Paddy and his PhD student Tirth have come up with an idea for how dark matter and dark energy could just be two components of the same thing: http://de.arXiv.org/abs/hep-th/0205055 Cool! :)

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Dimming Supernovae by Axions
by Andrzej Marecki 08 May '02

08 May '02

Yet another "non-orthodox" view on SN dimming attributed to the expansion of the Universe: http://t8web.lanl.gov/people/terning/axion.html (This is based on a paper accepted by Physical Review Letters 88 (2002), 161302.) -- Andrzej

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Cosmo-torun May 2002