Cosmo-torun March 2009

cosmo-torun@cosmo.torun.pl

2 participants
2 discussions

some notes after today's talk - LDM
by Boud Roukema 22 May '09

22 May '09

witam cosmo-torun * circular polarisation from synchrotron processes? Kennett & Melrose, 1998, PASA, 15, 211 http://www.atnf.csiro.au/pasa/15_2/kennett/paper/node3.html > In some sources it may be that the relativistic > particles are electron-positron pairs (e.g., Wilson & > Weiler 1997). Electrons and positrons contribute with > the same sign to the linearly polarized component and > with the opposite sign to the circularly polarized > component. If the distributions of electrons and > positrons are the same the wave modes can have no > circular component and, more importantly, the intrinsic > circular polarization from the synchrotron radiation > sums to zero. So if we have different distributions of electrons and positrons, then we get a circular polarisation component. i'm sure there must be more basic texts on this subject... pozdr boud

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Diffusion PNCG, mess. n° 6 (fwd)
by Boud Roukema 27 Mar '09

27 Mar '09

hi all some interesting announcements pozdr boud > > ---------- Forwarded message ---------- > Date: Thu, 26 Mar 2009 16:46:49 +0100 > From: Programme National de Cosmologie et Galaxies <pncg iap.fr> > To: Programme National de Cosmologie et Galaxies <pncg iap.fr> > Subject: Diffusion PNCG, mess. n° 6 > > PNCG - Message n° 6 - 26 mars 2009 > > 1. Oxford Physics Department 2 Jobs Advert > > 2. NAM/JENAM 2009 : Epoch of Reionisation Session > > 3. Blois 2009 > > 4. Santa Fe Cosmology Summer Workshop for 2009 > > 5. Summer School in Statistics for Astronomers, June 1-6, 2009 > > ----------------------------------------------------------------------- > 1. Oxford Physics Department 2 Jobs Advert > > Please visit http://www.physics.ox.ac.uk/jobs/ to view this. > > *1* Vacancy Title: Post-doctoral Researchers in OBSERVATIONAL COSMOLOGY > within Astrophysics > > Reference Number: DB09005 > > Job Description: The Department of Physics invites applications for one > or more post-doctoral positions in observational cosmology. > > The observational cosmology programme at Oxford includes: the analysis > of surveys for type Ia supernovae; analysis of large-area surveys of > weak gravitational lensing incorporating photometric redshift estimation; > and the design and implementation of upcoming redshift surveys to measure > baryonic oscillations. We especially welcome applications from candidates > interested in working on any of these projects. > > The post-holder will have the opportunity to engage in teaching for up > to 3 hours per week during term. The starting salary is from £28,839 > to £38,757 pa depending on skills and experience. A benefits package > and a research budget for travel and other expenses will be provided. > Appointments will be for two years in the first instance, extendable > to three years. Appointments would start on 1 May 2009 or later. > > Further particulars are available from > http://www.physics.ox.ac.uk/astro/jobs/ > Applicants should send a statement of research interests, > curriculum vitae, list of publications (one file only in pdf), > and the names and addresses of three referees by the closing date > of 31 March 2009, quoting reference DB09005. Email submission is > preferred. Please ensure that the reference number DB09005 is > included in the subject title. In addition candidates should arrange > for letters from the referees to be sent to sec astro.ox.ac.uk by the > closing date. Interviews are expected to be held shortly after. > > > The University is an equal opportunity employer > > > Anyone who thinks they may be interested in the job is encouraged > to talk to Vanessa Ferraro-Wood (or email: sec astro.ox.ac.yuk) about it. > > The application deadline is 31/03/2009 > > > *2* Vacancy Title: Postdoctoral Researcher in Theoretical Cosmology > (Fixed Term) within Astrophysics > > Reference Number: DB09006 > > Job Description: We invite applications for a postdoctoral research > position starting 1 October, 2009 to work in the area of Theoretical > Cosmology for one year in the first instance, with the possibility of > extending to 3 years. There will be a particular focus on cosmic > microwave background anisotropy and interpretation of data from the > Atacama Cosmology Telescope and the Planck satellite. The successful > candidate is likely to have experience in analysis of cosmological data > and be capable of initiating research in a lively group with significant > interaction between theory and observation. The candidate will work > primarily with Joanna Dunkley, but will be encouraged to interact with > other faculty members and to carry out independent research. > > Oxford Astrophysics offers a stimulating research environment, with a > large number of faculty in cosmology, including theoretical (Pedro > Ferreira, Joe Silk, Adrianne Slyz), observational (Richard Ellis, Steve > Rawlings, Isobel Hook, Lance Miller) and experimental (Mike Jones, > Ghassan Yassin, Gavin Dalton). > > > Anyone who thinks they may be interested in the job is encouraged to > talk to Dr Joanna Dunkley (or email: j.dunkley1 physics.ox.ac.uk) about > it. > > > The application deadline is 31/03/2009 > > > ----------------------------------------------------------------------- > 2. NAM/JENAM 2009 : Epoch of Reionisation Session > > As part of the 2009 UK National Astronomy Meeting & the Joint European > National Astronomy Meeting at the University of Hertfordshire > (www.jenam2009.eu), there will be a parallel session on > > "Epoch of reionisation: > first light to the earliest galaxies currently known" > > on Monday 20th April 2009. > Please see www.jenam2009.eu/default.asp?ContentID=1327 > for more information. > > We would welcome submission of abstracts for this session by the > deadline on Monday March 9th. > > Registration and abstract submission is available at > www.jenam2009.eu/cmsapps/jenam_conference_reg/ > confreg2.asp?userid=0&confid=4&contentid=1329 > > ----------------------------------------------------------------------- > 3. Blois 2009 > > The XXIth Rencontres de Blois entitled "Windows on the Universe" > will be held from June 21st to June 26th, 2009 > in the Château de Blois, Loire Valley, France. > > This series, started in 1989 with the celebration of the > 25th anniversary of the discovery of CP violation, is a > high level cross disciplinary conference series which is > organized every year in May or June in the beautiful > Renaissance castle of Blois. > > This year will be the 20th anniversary of this series of > conferences; moreover, 2009 has also been tagged as the > "World year of astronomy". > To celebrate these two events, 7 Nobel laureates : J.Cronin, > R. Giacconi, D. Gross, M. Perl, G. Smoot, J. Steinberger, > J. Taylor and many other well known scientists have accepted > our invitation to attend and give a lecture. > > Registration and abstract submission for parallel session talks > are open at http://blois.in2p3.fr > > ----------------------------------------------------------------------- > 4. Santa Fe Cosmology Summer Workshop for 2009 > > The next of our continuing series of Santa Fe Cosmology Summer workshops > will be held in Santa Fe, New Mexico from July 6 to July 24, 2009. > The workshop series is sponsored by Los Alamos National Laboratory and > by the Kavli Institute for Cosmological Physics at the University of > Chicago. The venue is the campus of St. John's College, a small liberal > arts college that provides both a pleasant ambiance and convenient access > to Santa Fe. > > The aim of the Santa Fe workshops is to bring together physicists and > astrophysicists with interests in structure formation, the cosmic > microwave background, and the early universe. Typically, a large > portion of the time is devoted to discussion, with formal or informal > talks as needed to introduce such discussion. Attendance is limited > to about 80 participants to encourage this informality. We also > encourage attendance by a number of graduate students and junior > researchers, so they can be exposed to forefront research and interact > with leaders in the field. We therefore ask you to bring this meeting > to the attention of exceptional students and postdocs. > > This year, the first two weeks will follow our standard workshop > format, while the third week will be a focused workshop on weak > lensing. Details on third week activities will be available shortly. > > 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/week, less 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://www.lanl.gov/projects/cosmology/sf09/ > > 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 08, 2009. > > ----------------------------------------------------------------------- > 5. Summer School in Statistics for Astronomers, June 1-6, 2009 > > First Announcement > > Summer School in Statistics for Astronomers V > June 1-6, 2009 > Penn State University > http://astrostatistics.psu.edu/su09/ > > The fifth annual Penn State Summer School in Statistics for > Astronomers will be held at Penn State. This is a 6-day course > in fundamental statistical inference designed to provide > physical scientists, particularly young researchers in astronomy, > with a strong conceptual foundation in modern statistics and to > develop a repertoire of well-established techniques applicable > to observational astronomy. Classroom instruction is interspersed > with hands-on analysis of astronomical data using the public-domain > R software package. The course is taught by a team of statistics > and astronomy professors with opportunity for discussion of > methodological issues. > > Statistical techniques covered include: > > * exploratory data analysis > * hypothesis testing and parameter estimation > * regression & confidence interval estimation > * model selection & goodness-of-fit > * maximum likelihood methods & Bayes' Theorem > * non-parametric methods > * Monte Carlo methods > * Poisson processes > * time series analysis > > INTERESTED PARTICIPANTS SHOULD REGISTER AT > http://astrostatistics.psu.edu/su09/reg.html > REGISTRATION DEADLINE: May 1, 2009 > (or when the enrollment limit reaches) > REGISTRATION FEE: $250. > > The 2009 Summer School is organized by Penn State University's > Center for Astrostatistics. It will be modeled on the last four Penn > State Summer Schools and the 2008 Indian Institute of Astrophysics- > Penn State Summer School. See http://astrostatistics.psu.edu/ > for past lecture notes. This Web site > http://astrostatistics.psu.edu/su09/ > also gives information on travel, lodging, and visas. >

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Cosmo-torun March 2009