Dynamic2007 Pre-registration List

Dynamic2007 Workshop Pre-registration List

Name: Tzioumis, Tasso
E-mail: tasso.tzioumis@csiro.au Affiliation: ATNF CSIRO
Type of presentation: None
Title:
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Name: Corbel Stéphane
E-mail: stephane.corbel@cea.fr Affiliation: Université Paris 7 & CEA Saclay
Type of presentation: None
Title:
Abstract:

Name: Fender, Rob
E-mail: rpf@phys.soton.ac.uk Affiliation: University of Sothampton, UK
Type of presentation: Oral
Title: The LOFAR Transients Key Project
Abstract: LOFAR will offer a revolutionary capability in wide-field radio astronomy monitoring, namely the Radio Sky Monitor, which will be able to monitor the entire northern radio sky daily. I will report on this and other aspects of the LOFAR Transients Key Project, whose goals is to discover and report to the wider astronomical community all types of variable radio phemonena.

Name: Wijnands, Rudy
E-mail: rudy@science.uva.nl Affiliation: Astronomical Institute 'Anton Pannekoek', University of Amsterdam
Type of presentation:
Title:
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Name: P. Labropoulos
E-mail: panos@astro.rug.nl Affiliation: Kapteyn Institute
Type of presentation: None
Title:
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Name: Wijers, Ralph
E-mail: rwijers@science.uva.nl Affiliation: University of Amsterdam
Type of presentation: None
Title:
Abstract: I could give an overview of GRB physics or GRB radio observations, but I would much rather come and listen to hear the postdocs and phd students speak.

Name: Assoc. Prof. Tingay, Steven
E-mail: stingay@astro.swin.edu.au Affiliation: Swinburne University of Technology
Type of presentation: Oral
Title: eVLBI as a real-time response to transient phenomena
Abstract: eVLBI in Australia is developing the capability for fast response observations of transient phenomena at radio wavelengths, using an array of distributed antennas connected via optical fibre to supercomputers. Such a capability will complement fast, wide-field, sensitive, but low resolution transient source surveys with the extended New Technology Demonstrator (xNTD). Such a system could be analogous with certain operational modes of the SKA.

Name: Garrett, Mike
E-mail: garrett@jive.nl Affiliation: JIVE
Type of presentation: None
Title:
Abstract:

Name: Norris, Ray
E-mail: Ray.Norris@csiro.au Affiliation: CSIRO ATNF
Type of presentation: Oral
Title: Extending SETI to transient searches with next-generation radio
Abstract: I will present a review of SETI searches for transient signals, and then outline what might be achieved with next-generation instruments such as xNTD, MWA, LOFAR, and SKA, and the factors that would constrain such a search

Name: Krichbaum, Thomas
E-mail: tkrichbaum@mpifr-bonn.mpg.de Affiliation: Max-Planck-Institut fuer Radioastronomie
Type of presentation: Oral
Title: Rapid Variability of Compact Radio Sources
Abstract: to be determined, crude abstact for now: present new results from IDV monitoring programs performed at cm- and mm-wavelenghts. include recent results from VLBI.

Name: Drake, Frank
E-mail: drake@seti.org Affiliation: SETI Institute
Type of presentation: Oral
Title: Lessons from Optical SETI Searches for Pulses
Abstract: Optical SETI searches for pulses have been operating in many places, and have shown that a major problem is false positives. Powerful techniques have been developed to reject false positives, and these may be applicable at radio wavelengths.

Name: Macquart, Jean-Pierre
E-mail: jpm@astro.caltech.edu Affiliation: NRAO/CalTech
Type of presentation: Oral
Title:
Abstract:

Name: Chatterjee, Shami
E-mail: s.chatterjee@physics.usyd.edu.au Affiliation: University of Sydney
Type of presentation: Oral
Title: Localizing RRATs with X-ray observations
Abstract:

Name: Paragi, Zsolt
E-mail: zparagi@jive.nl Affiliation: JIVE
Type of presentation: Poster
Title: e-VLBI
Abstract:

Name: Gabanyi, Krisztina Eva
E-mail: krisztina.g@gmail.com Affiliation: MPIfR, Bonn, Germany / MTA Research Group for Physical Geodesy and Geodynamics, Budapest, Hungary
Type of presentation: Oral
Title: A newly found highly variable IDV source with possible annual modulation
Abstract: J1128+592 is a newly found highly variable Intraday Variable (IDV) radio source, with observed timescales ranging between few hours and two days. At present the mixing ratio between source intrinsic and source extrinsic IDV is unclear. In the source extrinsic model of IDV, the variations are interpreted as scintillation of the radio waves in the turbulent ISM of the Milky Way. One of the strongest evidence in favor of a propagation induced IDV would be the annual modulation of the observed variability timescale caused by the Earth orbiting motion around the Sun. So far, the observations of J1128+592 suggest that the changes of its variability timescale can be attributed to annual modulation.

Name: Meli, Athina
E-mail: ameli@phys.uoa.gr Affiliation: Dr.
Type of presentation: Poster
Title:
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Name: Kirk, John
E-mail: john.kirk@mpi-hd.mpg.de Affiliation: Max-Planck-Institut fuer Kernphysik, Heidelberg
Type of presentation:
Title:
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Name: Markoff, Sera
E-mail: sera@science.uva.nl Affiliation: University of Amsterdam
Type of presentation: Oral
Title: Transient Emission from X-ray Binaries (or TBD...)
Abstract: TBD

Name: Spencer, Ralph
E-mail: res@jb.man.ac.uk Affiliation: The University of Manchester
Type of presentation: Poster
Title: Coherent Sources and New Generation Telescopes
Abstract: LOFAR and SKA are both designed to have wide fields of view, and one of their key science objectives is to study transient sources. At low frequencies of around 100 MHz we expect varying synchrotron sources to have long time constants (months)if constrained by inverse Compton losses. Rapid variations (seconds or less) require coherent radiation mechanisms. In this paper we look at constraints on the physical pproperties of sources set by the need for coherence, with the aim of finding out if such studies in extragalactic objects are feasible.

Name: Miller-Jones, James
E-mail: jmiller@science.uva.nl Affiliation: Universiteit van Amsterdam
Type of presentation: Oral
Title: Low-frequency radio observations of Galactic microquasars
Abstract: With the advent of facilities enabling wide-field monitoring of the dynamic radio sky, new areas of parameter space will be opened up for exploration. Such monitoring will be done primarily at low frequencies, in order to maximise the available field of view. One class of radio sources known to be highly variable at GHz frequencies are the so-called `microquasars'. To date however, their low-frequency behaviour has not been well constrained by observations. I will present some of the first attempts to measure their low-frequency properties, showing wide-field images made from data taken with the 74-MHz system on the VLA and also the LFFEs, the new suite of low-frequency receivers on the WSRT.

Name: Dunn, Preston
E-mail: r.j.dunn@phys.soton.ac.uk Affiliation: School of Physics and Astronomy
Type of presentation:
Title: Unsure
Abstract: ??

Name: Scheers, Bart
E-mail: bscheers@science.uva.nl Affiliation: University of Amsterdam, Astronomical Institute "Anton Pannekoek"
Type of presentation: None
Title:
Abstract:

Name: Lazio, Joseph
E-mail: Joseph.Lazio@nrl.navy.mil Affiliation: Naval Research Laboratory
Type of presentation: Oral
Title:
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Name: Hyman, Scott
E-mail: shyman@sbc.edu Affiliation: Sweet Briar College
Type of presentation: Poster
Title: The Bursting Radio Transient GCRT J1745-3009
Abstract: A review of the three detections of the bursting radio transient GCRT J1745-3009 and of possible models describing the nature of this enigmatic object. (a revised title and abstract will be submitted in the next few months)

Name: Tsarevsky Gregory
E-mail: Gregory.Tsarevsky@asc.rssi.ru Affiliation: Astro Space Center, Lebedev Physical Institute, Moscow, Russia
Type of presentation: Oral
Title: Project ASTRAL: All-sky Space Telescope to Record Afterglow Locations
Abstract: ASTRAL is a project incorporating a wide-field optical telescopes onboard a small satellite dedicated to the whole-sky detection of a variety of rapid astronomical phenomena, particularly optical flashes associated with gamma ray bursts (GRB). Those flashes only visible optically (so called "orphans"), as well as those in one time with associated GRBs, cannot be detected in the current triggering mode of the world wide GRB Coordinates Network (GCN). Hence ASTRAL would have a unique opportunity to trigger a follow-up multi-frequency study via GCN. ASTRAL consists of a set of 13 wide-field cameras (each with $FOV = {70^o}$) equipped with 4096x4096 CCDs. The detection method is based on the Digital Blink Comparator mode, with a template of a complete sample of $\sim2$ million stars down to $12^m$, precisely measured in the HIPPARCOS and TYCHO-2 missions. Supernovae, novae and nova-like explosions, fast variable AGNs, flare stars, and even new comets would be promptly detected as well. Thus ASTRAL would also be an original working prototype of the prospective major space mission to monitor all the sky on-line.

Name: Tsarevsky Gregory
E-mail: Gregory.Tsarevsky@asc.rssi.ru Affiliation: Astro Space Center, Lebedev Physical Institute, Moscow, Russia
Type of presentation: Poster
Title: The Flickering - What It Is?
Abstract: We show that massive variability surveys of the extragalactic radio sources taken at different frequencies display a prominent trend in the Galactic Latitude - Modulation Index (|b| - m) plot. Taken alone, it has a pretty small statistical significance, but as a pool proves directly the extrinsic, ISM scintillation origin of the variability, at least partly. To discriminate each other - the intrinsic and extrinsic parts - is a challenge for the scintillation theory.

Name: Lonsdale, Colin
E-mail: cjl@haystack.mit.edu Affiliation: MIT Haystack
Type of presentation: Oral
Title: Transient science capabilities of the MWA
Abstract: TBD

Name: Cheung, Teddy
E-mail: teddy3c@stanford.edu Affiliation: NRAO and Stanford
Type of presentation: Poster
Title: Faraday Rotation in GRS1915+105
Abstract:

Name: Marchili Nicola
E-mail: marchili@mpifr-bonn.mpg.de Affiliation: Max Planck Institut fuer Radioastronomie
Type of presentation: None
Title:
Abstract:

Name: Dodson, Richard
E-mail: r.dodson@oan.es Affiliation: Observatorio Astronomico Nacional
Type of presentation: Oral
Title: Two decades of close monitoring the Vela pulsar glitches
Abstract: Pulsar glitches are transient events and the monitoring of the Vela pulsar by the Mt. Pleasant telescope provides the best tracing of these. The event probe the internal structure of pulsars, in a similar fashion to terrestrial earthquake studies.

Name: Fuhrmann, Lars
E-mail: lfuhrmann@mpifr-bonn.mpg.de Affiliation: Max-Planck-Institut fuer Radioastronomie Bonn, Germany
Type of presentation: Poster
Title: Study of scattering screens in front of IDV blazars
Abstract: [will follow]

Name: Tudose, Valeriu
E-mail: vtudose@science.uva.nl Affiliation: Astronomical Institute, University of Amsterdam
Type of presentation: Oral
Title: TBA
Abstract:

Name: Rushton, Anthony
E-mail: arushton@jb.man.ac.uk Affiliation: jodrell Bank observatory
Type of presentation: Poster
Title: Polarisation in the jets of GRS 1915+105
Abstract: Results of rescent 1.5 GHz MERLIN observations of the x-ray binary GRS 1915+105

Name: Celotti, Annalisa
E-mail: celotti@sissa.it Affiliation: S.I.S.S.A.
Type of presentation: None
Title:
Abstract:

Name: Klein-Wolt, Marc
E-mail: klein@science.uva.nl Affiliation: Astronomical Institute University of Amsterdam
Type of presentation: Oral
Title: Identification of black hole power spectral components across all canonical states
Abstract: From a uniform analysis of a large (8.5 Ms) data set of RXTE observations of LMXBs, we present a complete classification of all the variability components found in the power spectra of black holes in their various states. The classification is based on the shifts in amplitude and frequency of the variability components observed as a source switches between canonical states, and uses a previous classification in the black hole low hard state as a starting point. It is supported by correlations between the frequencies of the variability components previously found to hold for black hole and neutron stars; we find the frequency-frequency correlations to hold for all black hole states as features change in frequency from state to state, but always following a fixed relation to other components. The implications of this relation are discussed in terms of the black hole canonical states characteristics such as the energy spectral- and radio properties.

Name: Ojha, Roopesh
E-mail: rojha@usno.navy.mil Affiliation: NVI/ US Naval Observatory
Type of presentation: Oral
Title: Milliarcsecond Structure of Microarcsecond Sources
Abstract: We present the key findings of an ongoing program of Very Long Baseline Interferometry (VLBI) observations of scintillating and non-scintillating flat-spectrum extragalactic radio sources whose scintillation status was determined by the Micro-Arcsecond Scintillation-Induced Variability (MASIV) survey. Both single frequency (8.4 GHz) observations to compare morphologies, and multi-frequency observations (from 330 MHz through 22 GHz) to study scattering behaviour have been carried out. Though scintillation probes the structure of quasars on scales of tens of microarcseconds, information at the milliarcsecond scale probed by these VLBI observations is proving invaluable in furthering our understanding of this phenomenon. Also, the common occurence of scintillation in compact radio sources might be the ultimate limitation for VLBI astrometry (which among other things defines the International Celestial Reference Frame) in the sense that the final precision of reference frame source positions are likely to be influenced by the presence of scintillation.

Name: Law, Casey
E-mail: claw@science.uva.nl Affiliation: Universiteit van Amsterdam/LOFAR
Type of presentation: Oral
Title: Early Results from a Transient Survey with LOFAR-CS1
Abstract: We present preliminary results of a survey for radio transients with the first station of LOFAR, Core Station 1 (CS1). The observations, centered near 57 MHz, study a 64x64 degree patch of the sky on time scales from tens of seconds to days.

Name: Pandey, Mamta
E-mail: mamtapan@gmail.com Affiliation: CEA, Saclay, France
Type of presentation: Oral
Title: Low frequency radio imaging of transient sources
Abstract:

Name: Karastergiou, Aris
E-mail: aris@iram.fr Affiliation: IRAM
Type of presentation:
Title:
Abstract:

Name: Maitra, Dipankar
E-mail: dmaitra@science.uva.nl Affiliation: Astronomical Institute 'Anton Pannekoek', University of Amsterdam
Type of presentation: Oral
Title: Optical/near-IR detection and monitoring of LOFAR transients using SMARTS
Abstract: The Small and Moderate Aperture Research Telescope System (SMARTS) consortium has an ongoing program to routinely monitor X-ray binaries, simultaneously in optical and near-IR (OIR) wavelengths. I will discuss (a) our observing strategies, instrumental capabilities/limitations and (b) the possibility of OIR detection and follow-up of new transients found by the LOFAR Transient Key Project.

Name: Bignall, Hayley
E-mail: bignall@jive.nl Affiliation: Joint Institute for VLBI in Europe
Type of presentation: Oral
Title: Rapid Interstellar Scintillation of Extragalactic Sources
Abstract: Some quasars and extragalactic megamasers have been found to exhibit rapid radio variability, on timescales of hours or less, consistent with interstellar scintillation in the weak scattering regime. I will discuss some recent observational results and implications for both the sources and the local interstellar medium responsible for the scattering.

Name: Cimo, Giuseppe
E-mail: cimo@jive.nl Affiliation: JIVE
Type of presentation: Oral
Title: Monitoring the Interstellar Scintillation in a sample of Southern Blazars.
Abstract: I will provide a multifrequency description of the Intraday Variability phenomenon combining Australia Telescope Compact Array observations with data from the monitoring projects at the University of Tasmania. Some implications concerning the physics of compact structures and the characteristics of the interstellar medium will be discussed.

Name: van Driel, Wim
E-mail: wim.vandriel@obspm.fr Affiliation: Observatoire de Paris
Type of presentation: None
Title:
Abstract:

Name: van Driel-Gesztelyi, Lidia
E-mail: lidia.vandriel@obspm.fr Affiliation: Mullard Space Science Laboratory, University College London
Type of presentation: Oral
Title: transient radio signatures of solar coronal mass ejections
Abstract: TBD

Name: McAdam, Bruce
E-mail: mcadam@physics.usyd.edu.au Affiliation: University of Sydney
Type of presentation: None
Title:
Abstract:

Name: Stappers, Ben
E-mail: stappers@astron.nl Affiliation: ASTRO/UvA
Type of presentation: Oral
Title: Radio Emitting Neutron Stars at Low Frequencies
Abstract: I will present new work from the WSRT at 100-170 MHz on a number of radio emitting neutron stars including pulsars, RRATs and Magnetars. These results will provide the basis of our expectations for how radio emitting neutron stars might show up in transient surveys especially where the inetgration time is much longer than the pulsation time. I will also present initial results of LOFAR-CS1 observations of pulsars.

Name: Seiradakis, John
E-mail: jhs@astro.auth.gr Affiliation: Aristotle University of Thessaloniki
Type of presentation: None
Title:
Abstract:

Name: Casella, Piergiorgio
E-mail: casella@science.uva.nl Affiliation: Astronomical Institute, University of Amsterdam
Type of presentation:
Title:
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Name: Soleri, Paolo
E-mail: psoleri@science.uva.nl Affiliation: Astronomical Institute "A. Pannekoek", University of Amsterdam
Type of presentation: Oral
Title: Simultaneous X-ray/radio observations of X-ray Binaries
Abstract: TBD

Name: Meyer, Leonhard
E-mail: leo@ph1.uni-koeln.de Affiliation: University of Cologne
Type of presentation: Oral
Title: The flaring activity of Sgr A*: An orbiting and expanding plasma blob?
Abstract: The supermassive black hole at the Galactic center, Sgr A*, shows frequent radiation outbursts, so-called flares. In the near-infrared some of these flares were reported to show intrinsic quasi-periodicities of 18±3 min. In 2005 and 2006, we have carried out polarimetric observations of these QPOs in the K-band. These observations allow for a detailed investigation of Sgr A* within the hot spot model. In this model, inhomogeneities in the accretion flow are represented as confined orbiting material. By simultaneous fitting of the lightcurve fluctuations and the time-variable polarization angle, we address the question whether these changes are consistent with the hot spot model, in which the interplay of relativistic effects plays the major role. Considering the quality of the fit, we think that this model is favored. Our confidence contours give constraints to the spin-parameter and the inclination of the supermassive black hole associated with Sgr A*. Furthermore, by now there is some evidence that the linkage to the mm/radio-regime is provided by an adiabatic expansion of the blob.

Name: Spreeuw, Hanno
E-mail: hspreeuw@science.uva.nl Affiliation: University of Amsterdam
Type of presentation:
Title:
Abstract:

Name: Fuhrmann, Lars
E-mail: lfuhrmann@mpifr-bonn.mpg.de Affiliation: Max-Planck-Institut fuer Radioastronomie Bonn, Germany
Type of presentation: Oral
Title: to be decided later
Abstract:

Name: Swinbank, John
E-mail: swinbank@science.uva.nl Affiliation: University of Amsterdam
Type of presentation: Oral
Title: The Design of the LOFAR Transients Detection Pipeline
Abstract: An overview of the design and implementation of the system developed for detecting transient sources with LOFAR.

Name: Baan, WIllem
E-mail: baan@astron.nl Affiliation: ASTRON
Type of presentation: Oral
Title: Masers as signposts of time-evolution
Abstract: tbd

Name: Papadopoulos, Padelis
E-mail: papadop@phys.ethz.ch Affiliation: ETH Zurich
Type of presentation: Oral
Title: A high-frequency extragalactic survey of molecular lines.
Abstract: I will present preliminary results from the largest extragalactic survey at frequencies of 230, 350, 460 and 690 GHz where transitions of the CO and HCN molecules lie. These are tracers of molecular hydrogen in the Universe, and HCN traces its dense star-forming phase. This work prepares the ground for ALMA, currently constructed in the Atacama desert in Chile, and reveals some first surprises.

Name: Chakrabarty, Deepto
E-mail: deepto@space.mit.edu Affiliation: MIT
Type of presentation: None
Title:
Abstract:

Name: Garrett Michael
E-mail: garrett@astron.nl Affiliation: General Director Stichting ASTRON
Type of presentation: None
Title:
Abstract:

Name: Lazaridis Kosmas
E-mail: klazarid@mpifr-bonn.mpg.de Affiliation: Max-Planck-Institut für Radioastronomie, IMPRS, Bonn, Germany
Type of presentation: Poster
Title: Flux density spectrum of the magnetar AXP J1810-197
Abstract: Using multi-frequency observations performed over several months at 2.7, 4.9, 8.4, 14.6 and 32 GHz, with the 100-m Effelsberg radio telescope of the Max-Planck-Institut für Radioastronomie, we obtained flux density measurements and spectral features of the 5.5 sec radio emitting magnetar AXP XTE J1810-197. We present the flux density spectrum of the average profile and of the separate pulse components of this first radio-emitting transient anomalous X-ray pulsar.

Name: Koerding, Elmar
E-mail: elmar@phys.soton.ac.uk Affiliation: University of Southampton
Type of presentation: Oral
Title: Radio emission as a tracer of the accretion rate
Abstract: I will present a method to estimate the accretion rate and jet power from the core radio luminosity of jet emitting sources. Several applications will be highlighted: The bolometric luminosity of hard state objects as a function of the accretion rate can be observed. The findings suggest inefficient accretion both in stellar and supermassive black holes. Secondly, all soft state black holes seem to populate a plane in the space defined by the black hole mass, accretion rate and characteristic time scale. Using the presented technique this plane can be extended to hard state objects and neutron stars. Finally, I will use the jet power estimate to study the kinetic power output of active galactic nuclei.

Name: Osten, Rachel
E-mail: rosten@astro.umd.edu Affiliation: University of Maryland
Type of presentation: Oral
Title: Transient Emissions from Radio-Active Stars
Abstract: Nearby active stars can be the source of transient, but intense, bursts of radio radiation. Targeted studies have revealed that there are two main mechanisms producing powerful bursts at dm- and cm-wavelengths. I will review the current state of knowledge regarding observations and understanding of the phenomena, as well as provide some perspectives for the next generation of wide-field radio imaging telescopes.

Name: Ray, Paul
E-mail: paul.ray@nrl.navy.mil Affiliation: Naval Research Laboratory
Type of presentation: Oral
Title: A Bursting Radio Transient in the Galactic Center
Abstract: The radio sky is poorly sampled for rapidly varying transients because of the narrow field-of-view of most imaging radio telescopes. This situation has begun to change and we have undertaken a series of wide-field monitoring observations of the Galactic Center at 330 MHz. In these observations we discovered a transient, bursting, radio source in the direction of the Galactic Center, GCRT J1745-3009, quite unlike any known radio source. Its flux and rapid variability imply a brightness temperature >10^12 K if it is at a distance >70 pc, implying that it is a coherent emitter. I will discuss the discovery of the source, the search for counterparts at other wavelengths, and some proposed models. I will conclude by describing the Long Wavelength Array (LWA), one of a suite of new low-frequency, wide-field radio instruments under development that should greatly increase the number of detected transient radio sources. [NOTE: This is a preliminary abstract, and I may also want to do a poster as well on the LWA development]

Name: Sapountzis Kostas
E-mail: grdedalos@yahoo.gr Affiliation: Athens National University - Greece
Type of presentation: Poster
Title:
Abstract: