Cosmo-torun

cosmo-torun@cosmo.torun.pl

328 discussions

seminar JP Luminet 14.00 Tues 20.11.2007 @KRA
by Boud Roukema 12 Oct '07

12 Oct '07

Witam cosmo-torun, Jean-Pierre Luminet (Laboratory Universe & Theories (LUTH), Observatoire de Paris (France), http://luth2.obspm.fr/luminet.html) will give a seminar here as below. For those people interested, i'm thinking especially of cosmology students/doktoranci, it would be good to join Jean-Pierre and myself in the city centre in the morning, for casual discussion and lunch. After that we will come to Piwnice. 14.00 on Tues 20 November @KRA TITLE: The shape of space : from black holes to cosmic topology ABSTRACT: The decription of the shape of our physical space at various scales (length scales or energy scales) involves a rich variety of geometrical models, each depending on the underlying physical theory. Imaging distorted space and time by gravitational and quantum fields is a big challenge of modern fundamental physics. I shall discuss such space representations for describing the shape of space around and inside black holes, next the global shape of our universe in the framework of cosmic topology. Striking movies and color visualizations will be displayed. pozdr boud

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Canaries CMB winter school 19-30 November 2007 - deadline 30 June
by Agata Karska 26 Jun '07

26 Jun '07

I've just come back from another conference organized in Canary Islands. Deadline for abstract was January 31st but in practice I was able to submit mine until May 10th (!). The place is very expensive (77 euros/day are not so much surprising) but I suppose they will have good sources of funding for participants and everybody interested should at least try to ask them about it. Agata

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Canaries CMB winter school 19-30 November 2007 - deadline 30 June
by Boud Roukema 26 Jun '07

26 Jun '07

hi cosmo-torun There is an interesting winter school on the CMB - 19-30 November 2007: http://www.iac.es/winschool2007/pages/announcement.php The only difficult (strange) thing is that you must apply before 30 June, i.e. just a few days away!!! which is 6 months in advance. > Those interested in attending the WS should send a Curriculum Vitae, a > short summary of their current research project and a letter of > reference from their thesis advisor, or Head of Department, by filling > out the web forms in above links or by mailing to the address > below. These should reach the IAC before June 30th. Selected > candidates will be informed by September 7th. My guess is they probably need to apply for funding or pay something in advance, but they also ask for 1300 euros registration fee - this includes accommodation for 13 days. A normal registration fee for a big conference can easily be 300 euros, so this would make about 77 euros/day for accommodation (including food - "full-board"). Sounds strange and expensive to me. But if someone wants to go and can get funding, it could be a good winter school. pozdr boud

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astrogrid-pl (astropolityka)
by Boud Roukema 31 May '07

31 May '07

Witam cosmo-torun, Istnieje grupa dyskusyjna dla ASTROGRID-PL - projekt administracyjno-polityczny dla klastrów komputerowych dla astronomów w Polsce. Nie jestem odpowiedzialny dla poufny/zcentralizowany sposób według którym jest zaorganizowany - prosiłem aby Bartek jest napisany w grupie, Geniu już jest. Jeśli ktoś więcej się interesuje, mów i mogę prosić że jesteś dodawany. Jest trochę cieżki sposób zaorganizować komunikację, ale jeszcze raz, to nie moja winna. pozdr boud

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http://arxiv.org/abs/0705.3655
by Bartosz Lew 28 May '07

28 May '07

hi everyone this sounds interesting http://arxiv.org/abs/0705.3655 Title: Evidence Of Dark Matter Annihilations In The WMAP Haze Authors: <a href="http://arxiv.org/find/astro-ph/1/au:+Hooper_D/0/1/0/all/0/1">Dan Hooper</a>, <a href="http://arxiv.org/find/astro-ph/1/au: +Finkbeiner_D/0/1/0/all/0/1">Douglas P. Finkbeiner</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dobler_G/0/1/0/all/0/1">Gregory Dobler</a> Comments: 4 pages, 3 figures The WMAP experiment has revealed an excess of microwave emission from the region around the center of our Galaxy. It has been suggested that this signal, known as the ``WMAP Haze'', could be synchrotron emission from relativistic electrons and positrons generated in dark matter annihilations. In this letter, we revisit this possibility. We find that the angular distribution of the WMAP Haze matches the prediction for dark matter annihilations with a cusped density profile, $\rho(r) \propto r^{-1.2}$ in the inner kiloparsecs. Comparing the intensity in different WMAP frequency bands, we find that a wide range of possible WIMP annihilation modes are consistent with the spectrum of the haze for a WIMP with a mass in the 100 GeV to multi-TeV range. Most interestingly, we find that to generate the observed intensity of the haze, the dark matter annihilation cross section is required to be approximately equal to the value needed for a thermal relic, $\sigma v \sim 3 \times 10^{-26}$ cm$^3$/s. No boost factors are required. If dark matter annihilations are in fact responsible for the WMAP Haze, and the slope of the halo profile continues into the inner Galaxy, GLAST is expected to detect gamma rays from the dark matter annihilations in the Galactic Center if the WIMP mass is less than several hundred GeV. -- Bartosz Lew, The Graduate School of Science, Nagoya University email: blew(a)a.phys.nagoya-u.ac.jp tel: +81 52 7892842 www: mail: Department of Physics and Astrophysics, Nagoya University, Chikusa-ku Nagoya 464-8602 Japan

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Verschuur [0704.1125] HI correlates with 1deg scale WMAP hot spots?
by Boud Roukema 17 May '07

17 May '07

witam cosmo-torun, http://cosmocoffee.info/viewtopic.php?t=865 astro-ph/0704.1125 High Galactic latitude interstellar neutral hydrogen (HI) structure and associated acoustic-scale WMAP hot spots Authors: Gerrit L. Verschuur Associations have been found between interstellar neutral hydrogen (HI) emission morphology and small-scale structure observed by the Wilkinson Microwave Anisotropy Probe (WMAP) in a Target Area bounded by l = 60 deg & 180 deg, b = 30 deg & 70 deg. ... Is some part of the angular power spectrum at about a degree (first "Doppler peak") due to interacting/colliding HI clouds around our Galaxy? pozdr boud

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spotka sroda 13:00 czas polski = 20:00 czas japonski @KRA + gg
by Boud Roukema 07 May '07

07 May '07

witam, Spotkanie kosmo - dyskusja naszych róźnych projektów: * środa 9.05.2007r. w sali seminarium KRA o 13.00g Bartek + Agnieszka + Zbyszek + Boud + otwarte dla innych interesowanych w badania kosmo. Bartek będzie obecny przez gg i próbujemy też ekiga audio/video :). pozdr boud

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Re: Szkoła fizyki teoretycznej dla doktorantów
by Boud Roukema 11 Apr '07

11 Apr '07

Witam Marek, Średnie oczekiwamy na około 1.55 doktorantów toruńskie na rocznym szkołu - na założenie 3 szkoły w następnych 3 latach, mamy [2.5 + 2.0 + (0.05*3) ] /3 = 1.55 według interpretację czestotliwościową, lub inaczej, może poprostu to traktować jako P( ) bayesowska. pozdr boud On Wed, 7 Mar 2007, zralek wrote: > Szanowni Panstwo, > > Jak wiekszosc z Panstwa wie na ostatnim spotkaniu naszego > porozumienia 19 lutego w Warszawie zdecydowalismy, iz bedziemy > organizowac Szkoly fizyki teoretycznej dla doktorantow z fizyki > czastek, astrofizyki i kosmologii. Na takiej tygodniowej Szkole, > organizowanej cyklicznie przez wszystkie grupy naszego porozumienia, > odbywalyby sie serie wykladow specjalistycznych, ktore trudno > przeprowadzic w poszczegolnych osrodkach albo ze wzgledu na mala > liczbe sluchaczy albo brak kadry. Po pierwsze, prosze o komentarz w > tej sprawie wszystkich, ktorzy nie byli obecni w Warszawie. I sprawa > druga, zgodnie z naszymi ustaleniami urzejmie prosze o podanie ilu > doktorantow mogloby brac udzial w takiej Szkole z kazdego Osrodka. > Lacze serdeczne pozdrowienia, > Marek Zralek >

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Diffusion PNC (fwd)
by Boud Roukema 10 Apr '07

10 Apr '07

hi cosmo-torun, Several conferences (most announcements in English) from the PNC: pozdr boud ---------- Forwarded message ---------- > Date: Fri, 6 Apr 2007 11:02:23 +0200 (CEST) > From: Programme National de Cosmologie <pnc at iap.fr> > To: Programme National de Cosmologie <pnc at iap.fr> > Subject: Diffusion PNC --------------------------------------------------------------------------- PNC PNC PNC http://www.iap.fr/pnc/ PNC PNC PNC PNC --------------------------------------------------------------------------- message # 291 6 Avril 2007 1) PostDoc , "Dynamics of Galaxies " , LAM (Marseille) 2) Postdoc , GRBs with the SVOM satellite , LAM (Marseille) 3) Postdoc , LAM ( Marseille ) , "Oscillations acoustiques des baryons dans le CFH-LS et les prochains sondages grand-champ" 4) Postdoc, Paticle Astrophysics and String theory, Stockholm (Physics Dept.) 5) Postdoc in Observational Cosmology , Portsmouth (UK) 6) Postdoc positions at Instituto de Astrof?sica de Canarias ( Spain ) 7) Summer School , "Formation and Evolution of cosmic Structure" Novicosmo 2007 , Novigrad-Cittanova , Croatia 10-21 September 2007 8) SIGRAV graduate school in contemporary relativity and gravitational physics , VII edition : " The Dark side of the universe" Villa Olmo, Como, Italy , May 14-18, 2007 9) Ecole de Physique des Astroparticules - I 10 -15 septembre 2007, OHP, Saint Michel l'Observatoire ?La Physique des Astroparticules? 10) Santa Fe Cosmology Summer Workshop, July 2-20 11) Ecole Internationale d'Astrophysique Daniel Chalonge "Dark Matter, Dark Energy, CMB and LSS: Understanding the Physics of the Universe" 16 -17-18 AUGUST 2007, Observatoire de Paris HQ, Paris campus 12) workshop : " future wide field weak lensing surveys for cosmology." April 24-25, 2007 , CPPM , Marseille. 13) Conference " Data Analysis in Cosmology 2007 " July 9 - 12, 2007 , Santander (Spain) 14) Third Sino-French conference:"Origins". Paris, Sevres 15-20 octobre 2007 --------------------------------------------------------------------------- PNC PNC PNC http://www.iap.fr/pnc/ PNC PNC PNC PNC --------------------------------------------------------------------------- 7) Summer School , "Formation and Evolution of cosmic Structure" Novicosmo 2007 , Novigrad-Cittanova , Croatia 10-21 September 2007 Motivations: The goal of understanding the formation and evolution of the cosmic structures in the Universe drives current advances in observational cosmology. Over the last decade tremendous progress has been made in the direct observational study of structures to look back times covering over 90% of the age of the Universe. In the current paradigm, cosmic structure grows through gravitational instability which acts to boost small initial fluctuations, seeded from quantum fluctuations during the inflationary phase of the Universe. Dark matter haloes are built up which host ordinary baryons. These blossom into luminous galaxies. While the evolution of the dark matter follows simple physics, namely gravity, our knowledge has significant gaps when it comes to describing the luminous, baryonic component of the Universe; this ignorance becomes spectacular in the case of the very first "luminous" objects which lit up the Universe at the end of the Dark Ages. Complex physical processes need to be considered. Through the use of increasingly sophisticated computer simulations, the first realistic attempts to model the process of galaxy formation over the history of the Universe are now being made. The purpose of the School is to provide to young scientists with the opportunity to widen their knowledge of cosmology and extragalactic astrophysics and to become acquainted with key recent theoretical and experimental results, as well as to foster an interactive exchange among participants. We seek to establish an atmosphere in which observers and theorists will review, confront and discuss with young scientists recent progress and future directions. The School is then aimed at PhD students and young scientists with a Post-doc experience of less than 4 years. Outstanding upper level undergraduates may also be considered. Each subject will be covered by 3 lectures of 2 hours each, delivered by a scientist who has made significant contributions to the topic. Everyday there will be a special seminar on a particularly important subject in the field of Cosmology. http://www.novicosmo.org/ --------------------------------------------------------------------------- PNC PNC PNC http://www.iap.fr/pnc/ PNC PNC PNC PNC --------------------------------------------------------------------------- 8) SIGRAV graduate school in contemporary relativity and gravitational physics , VII edition : " The Dark side of the universe" Villa Olmo, Como, Italy , May 14-18, 2007 http://www.centrovolta.it/sigrav/ The SIGRAV Schools are directed to PH.D. students and young Post-Docs in Physics, Astronomy and Mathematics who are interested in widening their knowledge in the fields of Physical Cosmology, Relativistic Astrophysics, General Relativity, Experimental Gravity and the Modern Quantum Theories of Gravitation. The Schools wish to introduce students to current problems, highlighting their importance and potential scientific impact. Lecturers will report on theoretical, observational and experimental aspects of the research, reviewing latest achievements in the field. PROGRAM Studying the physical and astrophysical properties of the dark matter and dark energy components of the Universe is a crucial step towards the ultimate goal of unveiling their nature. A large number of present and future experiments and observations is indeed devoted to this goal. The school will focus on the theoretical and experimental/observational aspects of this problem, as seen from both its cosmological and particle physics sides. --------------------------------------------------------------------------- PNC PNC PNC http://www.iap.fr/pnc/ PNC PNC PNC PNC --------------------------------------------------------------------------- 9) Ecole de Physique des Astroparticules - I 10 -15 septembre 2007, OHP, Saint Michel l'Observatoire Â? La Physique des AstroparticulesÂ? Nous avons le plaisir de vous annoncer l'école thématique du CNRS intitulée Ecole de Physique des Astroparticules elle se tiendra ? l'OHP (Saint Michel l'Observatoire) du 10 au15 septembre 2007. hhttp://www.cpt.univ-mrs.fr/~cosmo/WEB_EAP_07/EcoleAP-OHP07.html Les organisateurs B. Degrange (LLR) - J. Lavalle (CPPM) - R. Triay (CPT) Contexte Scientifique La physique des astroparticules investit aujourd'hui des problématiques aussi diverses que l'origine et la propagation des particules-rayonnements, la masse des neutrinos, la proportion d'anti-mati?re dans l'univers, l'existence et l'origine de la mati?re noire, l'invariance de Lorentz, la physique des processus gravitationnels ? champs forts, etc. Ces derni?res années, les expériences associées ? cette thématique se sont considérablement développées et leurs résultats suscitent toujours plus d'enthousiasme. Dans la perspective d'assurer une formation conséquente dans ce champ explicitement interdisciplinaire, le programme a une tendance assez généraliste, il mettra en évidence les point forts des th?mes suivants : Neutrino -- Gamma et GRB -- Sources et processus d'UHE -- Mati?re noire -- Rayons cosmiques et accél?rateurs cosmiques. Il vise ? couvrir autant les aspects d'observation que théoriques de ces problématiques. --------------------------------------------------------------------------- PNC PNC PNC http://www.iap.fr/pnc/ PNC PNC PNC PNC --------------------------------------------------------------------------- 10) Santa Fe Cosmology Summer Workshop, July 2-20 The Santa Fe topical workshop for 2007 will concentrate on recent developments in cosmology, especially those related to current and expected observational advances, including the cosmic microwave background, large-scale structure, galaxies and clusters, and dark matter and energy/early universe. The format will emphasize discussion with some formal pedagogical review and related talks as appropriate. Generally speaking we would like to reserve the largest fraction of the day for discussion and informal meeting. To encourage this informality and discussion, attendance will be limited to about 80 participants. There will be no registration fee and highly subsidized housing will be provided (the precise cost estimates will be available soon, but are typically $150/room/week, $50/week for students). Travel support will not be available. To register for the meeting and to make suggestions for the scientific program, go to the Workshop website at http://t8web.lanl.gov/people/salman/sf07/ We will be filling spaces on a rolling basis, so you are strongly advised to register as soon as possible, and preference will be given to those who register before April 05, 2007. --------------------------------------------------------------------------- PNC PNC PNC http://www.iap.fr/pnc/ PNC PNC PNC PNC --------------------------------------------------------------------------- 11) Ecole Internationale d'Astrophysique Daniel Chalonge "Dark Matter, Dark Energy, CMB and LSS: Understanding the Physics of the Universe" 16 -17-18 AUGUST 2007, Observatoire de Paris HQ, Paris campus The Colloquium is within the astrofundamental physics spirit of the Chalonge School, this time focalized on recent observational and theoretical progress on dark matter, dark energy, including neutrinos and sterile neutrinos, CMB data and the theory of the early universe with predictive power. The Topics are: Observational and theoretical progress in deciphering the nature of dark matter and dark energy . CMB and Large scale structure formation. Inflation after WMAP (in connection with the CMB and LSS data), quadrupole suppression and initial conditions; quantum effects. CMB polarization, primordial magnetic fields effects. Neutrinos in cosmology. In summary, the aim of the meeting is to put together real cosmological data and hard theory predictive approach connected to them. An exhibition will retrace the 15 years of activity of the Chalonge School and of George Smoot participation to the School along these 15 years. All informations about the Meeting, including the general timing and the Programme and Lecturers of the Colloquium and registration information are displayed at the chalonge school web site http://chalonge.obspm.fr/colloque2007.html Early Registration is strongly encouraged Chalonge.Ecole at obspm.fr --------------------------------------------------------------------------- PNC PNC PNC http://www.iap.fr/pnc/ PNC PNC PNC PNC --------------------------------------------------------------------------- 12) workshop : " future wide field weak lensing surveys for cosmology." April 24-25, 2007 , CPPM , Marseille. The idea is to allow discussion between scientists working on current or future (either approved or still in development) wide field weak lensing surveys. Although a good understanding on the statistical limits of weak lensing exist, systematics are still to be explored in details and need to be fully understood (shape measurements, understanding and modeling the PSF correction, but also photometric redshifts and its requirements for calibration) in order to optimize the survey and ultimately give the best cosmology constraints. Furthermore, with the current and future lensing surveys there will be other lensing interests than measuring cosmic shear to probe cosmology, so it would also be very useful to discuss these science cases and understand their requirements. I wish you can come and participate to this workshop. So please let me know if you are able to attend and give me the title of your oral contribution ideally before March 23, 2007. The venue of the meeting will be at CPPM on the Marseille-Luminy campus http://marwww.in2p3.fr/ More details on the meeting, venue, list of participants can be found at http://www.oamp.fr/cosmology/weaklensing2007/ Jean-Paul Kneib on behalf of the SOC: Gary Bernstein, Anne Ealet , Yannick Mellier, Bruno Milliard, Alexandre Refregier, Jason Rhodes, Ludovic van Waerbeke, --------------------------------------------------------------------------- PNC PNC PNC http://www.iap.fr/pnc/ PNC PNC PNC PNC --------------------------------------------------------------------------- 13) Conference " Data Analysis in Cosmology 2007 " July 9 - 12, 2007 , Santander (Spain) The goal of the conference is to bring together experts on techniques and methodologies for data analysis which could be applied to cosmological studies. In particular the meeting will focus on: * Statistical analysis (Bayesian statistics, PCA,ICA, etc) * Neural networks * Multi-scale analysis * Inverse problem * Morphological analysis * Data fusion Registration is now open through the meeting's web page: http://max.ifca.unican.es/webcmb/dac07/ There will be a limited number of contributed talks and posters.More details on the meeting can be found in the previous web page. Please, circulate this announcement to anyone who might be interested. Contact: For practical questions about hotel reservation and travel information, please write to: congresossantander at viajeseci.es For general questions, please write to: dac007 at ifca.unican.es --------------------------------------------------------------------------- PNC PNC PNC http://www.iap.fr/pnc/ PNC PNC PNC PNC --------------------------------------------------------------------------- 14) Third Sino-French conference:"Origins". Paris, Sevres 15-20 octobre 2007 La troisieme conference franco-chinoise aura lieu a Paris (Sevres), du 15 au 20 octobre 2007, sur les themes: origines. La thematique "Origines" (de la matiere: cosmologie ; de la vie : planetes extra-solaires) est une des fortes priorites des agences europennes et chinoises en astronomie/astrophysique. C'est une des grandes questions du 21me siecle pour laquelle d'etonnants progres ont ete realises ces dernieres annees: decouvertes des planetes extrasolaires, de l'acceleration de l'Univers et de l'energie noire, des anisotropies du fond de rayonnement cosmologique, et des processus de formation des galaxies, pour lesquelles de tres forts investissements en instrumentation sol et espace ont ete engages. voir le site: http://origins.obspm.fr --------------------------------------------------------------------------- PNC PNC PNC http://www.iap.fr/pnc/ PNC PNC PNC PNC ---------------------------------------------------------------------------

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ile doktoranci w Toruniu sa potencjalnie interesowani w szkolu CAK ?
by Boud Roukema 15 Mar '07

15 Mar '07

[do: dokt-l phys, doktoranci astri, cosmo-torun] [odp: prywatny lub cosmo-torun] Witam doktorantom, Kosmologów i fizyków cząstki (CAK) się organizujemy w sieci w Polsce: http://cosmo.torun.pl/Cosmo/PorozumienieCAK http://www.fuw.edu.pl/~porozumienie/ Czy jesteś doktorantem/ką, który ,,mogloby brac udzial w takiej Szkole" ? Chyba ma interpretować ,,mogloby" jak więcej niż 30% szans w jednym roku (nie pamiętam jak często był pomysł to zrobić, ale chyba raz w roku jest rozsądny), że uczestniczyłbyś. (Chyba to szans bayesowski Co wiem w tej chwili: Moja propozycja/spekulacja aktualn CA: KRA - Lew/Szaniewska/Buliński - 3 osoby na średnio P = 30% (?) CA: KAA - czy jest ktoś potencjalnie zainteresowany ? IF: czy jest ktoś potencjalnie zainteresowany ? CAMK-Toruń: czy jest ktoś potencjalnie zainteresowany ? Sprawa jest trochę osobowa (jak zarządzisz twój czas), więc możesz odpowiedzić na prywatny lub na cosmo-torun at cosmo.torun.pl jak chcesz. Cel w tej chwili jest wiedzieć mniej-więcej ile doktoranic mamy w temacie. pozdr boud DYSKUSJA O SZKOŁY KOSMO-ASTRO-CZASTKI http://cosmo.torun.pl/pipermail/cosmo-pl/2007-March/000039.html > Szanowni Panstwo, > > Jak wiekszosc z Panstwa wie na ostatnim spotkaniu naszego > porozumienia 19 lutego w Warszawie zdecydowalismy, iz bedziemy > organizowac Szkoly fizyki teoretycznej dla doktorantow z fizyki > czastek, astrofizyki i kosmologii. Na takiej tygodniowej Szkole, > organizowanej cyklicznie przez wszystkie grupy naszego > porozumienia, odbywalyby sie serie wykladow specjalistycznych, ktore > trudno przeprowadzic w poszczegolnych osrodkach albo ze wzgledu na > mala liczbe sluchaczy albo brak kadry. Po pierwsze, prosze o > komentarz w tej sprawie wszystkich, ktorzy nie byli obecni w > Warszawie. I sprawa druga, zgodnie z naszymi ustaleniami urzejmie > prosze o podanie ilu doktorantow mogloby brac udzial w takiej Szkole > z kazdego Osrodka. > > Lacze serdeczne pozdrowienia, > Marek Zralek

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