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Ainsworth Racheal (DR.)

Ainsworth Racheal, Dr., Former PhD student 2010-2014,Former Researcher 2014-2016.

Wednesday 22nd February: DIAS General Interest Seminar – ‘Recent Trends in the Philosophy of Science’

Title: Recent Trends in the Philosophy of Science

Speaker: Dr Finnur Dellsén (University College Dublin)

Abstract: Many working scientists are familiar with Karl Popper’s vision of science as the concerted effort to falsify extent theories and replace them with new theories that make bold predictions about unobserved events. Popper’s ideas have been less influential among philosophers of science, due to a number of arguably devastating problems with his underlying approach. This talk will survey some of the more influential criticisms of Popper, and go on to discuss two other influential ways of thinking about science, viz. Thomas Kuhn’s idea of ‘paradigms’ as the basic unit of real scientific change, and the ‘Bayesian’ idea of scientific confirmation as grounded in subjective probability-assignments.

Time: Wednesday 22nd February 2017, 4.00pm.

Place: Lecture Room, School of Theoretical Physics, DIAS, 10 Burlington Road, Dublin 4.

Photos from the School of Cosmic Physics Statutory Public Lecture 2016 – 24th November 2016

Professor Tim Palmer Royal Society Research Professor, University of Oxford

Professor Tim Palmer, Royal Society Research Professor, University of Oxford

Professor Tim Palmer, Professor Maria Baghramian (UCD School of Philosophy & Principal Investigator on

Professor Tim Palmer, Professor Maria Baghramian (UCD School of Philosophy & Principal Investigator on “When Experts Disagree” Project), Professor Luke Drury (School of Cosmic Physics, DIAS & Principal Investigator on “When Experts Disagree” Project)

Cecil Keaveney (DIAS Registrar) with Prof. Tim Palmer

Cecil Keaveney (DIAS Registrar) with Prof. Tim Palmer

audience

 Watch the lecture here

DIAS School of Cosmic Physics Statutory Public Lecture 2016

 in association with the

“When Experts Disagree” Irish Research Council funded interdisciplinary project between UCD School of Philosophy and DIAS

“The Physics of Climate Change : What we know and what we are uncertain about”

by Professor Tim Palmer

Royal Society Research Professor, University of Oxford

Thursday 24th November 6:30pm

Edmund Burke Theatre (Room 1008), Arts Building, Trinity College Dublin

Admission is free but advance booking is required here on eventbrite.

https://www.dias.ie/climatechange

http://whenexpertsdisagree.ucd.ie/

scpposter2016

14 November 2016 – Are All Stars Created Equal? New findings by international team led by DIAS Astronomer

An international scientific team led by Dr. Alessio Caratti o Garatti from the Astronomy & Astrophysics Section of the School of Cosmic Physics here at DIAS, for the first time observed and analyzed an outburst from a high-mass young stellar object that was caused by material accreting onto the star.

Read the paper published in Nature Physics this week here : http://www.nature.com/nphys/journal/vaop/ncurrent/full/nphys3942.html

Press releases:

https://www.gemini.edu/node/12584

http://www.dsi.uni-stuttgart.de/aktuelles/news/news_0056.en.html

http://www.caha.es/a-startburst-reveals-the-formation-mechanism-of-massive-stars.html

Artist's impression of an accretion burst in a high-mass young stellar object like S255 NIRS 3. Image Credit: Deutsches SOFIA Institut (DSI).

Artist’s impression of an accretion burst in a high-mass young stellar object like S255 NIRS 3. Image Credit: Deutsches SOFIA Institut (DSI).

 

Pre-outburst (left) and outburst (middle) near-infrared images (K, H, J bands) of the high-mass young stellar object S255IR NIRS 3, taken from 2009 UKIDSS archive data and the PANIC camera (Calar Alto Observatory, Man-Planck Society) in 2016, respectively, as well as outburst mid-infrared images (right) taken with FORCAST / SOFIA at 7.7, 19.7 and 31.5 microns (2016). Copyright: Caratti o Garatti.

Pre-outburst (left) and outburst (middle) near-infrared images (K, H, J bands) of the high-mass young stellar object S255IR NIRS 3, taken from 2009 UKIDSS archive data and the PANIC camera (Calar Alto Observatory, Man-Planck Society) in 2016, respectively, as well as outburst mid-infrared images (right) taken with FORCAST / SOFIA at 7.7, 19.7 and 31.5 microns (2016). Copyright: Caratti o Garatti.

Science Contacts:

  • Alessio Caratti o Garatti
    Dublin Institute for Advanced Studies
    Email: alessio”at”cp.dias.ie
    Office: +353 1 4406656 ext.342
    Cell: +353 87 1091628

Media Contact:

Culture Night at Dunsink Observatory – Friday 16th September 2016

dunsink_house Dunsink Observatory is joining in the celebrations of Culture Night on Friday 16th September 2016.

The Observatory will be open from 7:00pm to 11:00pm and during the evening, visitors will be able to view the historic observatory buildings, which were once the home of Sir William Rowan Hamilton, world renowned mathematician and scientist.

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Sir William Rowan Hamilton

Visitors will also be able to see the historic Grubb telescope and hear the remarkable story of the Dublin company that became one of the greatest telescope makers in the World. Weather permitting, there will be various smaller telescopes on display for star-gazing.

Grubb Telescope

The Grubb telescope in the South Dome

There will be two talks given on astronomical topics including the history of Dunsink Observatory. These are not suitable for children under 12.

Advance booking is required for the talks  – BOOK NOW

No booking is required for visiting the Observatory.

Dunsink Observatory, Castleknock, Dublin 15  –  Directions. Parking available on-site.

Culture Night is brought to you by the Department of Arts, Heritage, Regional, Rural & Gaeltacht Affairs in partnership with regional arts offices, local authorities and cultural organisations throughout the island of Ireland.

culturenightlogo2015

3rd August – DIAS to Develop Revolutionary New Detector for Astronomy

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A Microwave Kinetic Inductance Detector (MKID) similar to the devices that will be developed in the Dublin Institute for Advanced Studies. Image courtesy of Ben Mazin and Spencer Bruttig, University of California, Santa Barbara

With funding from Science Foundation Ireland, the Dublin Institute for Advanced Studies is developing a new type of detector that will enormously enhance our ability to study the most distant galaxies in the Universe as well as star and planet formation in our own Milky Way. Known as Microwave Kinetic Inductance Detectors (MKIDs), individual pixels are super-cooled to a fraction of a degree above absolute zero and can detect not only the intensity of photons arriving from distant objects but also their colour and time of arrival to within a fraction of a millisecond. Data rates from these detectors are so high that the project will use read-out electronics, developed for the giant radio telescope known as the Square Kilometre Array, to collect results. This project is in collaboration with the University of Oxford, the Netherlands Institute for Space Research (SRON), Trinity College Dublin and Maynooth University. It will be led by Professor Tom Ray from the Dublin Institute for Advanced Studies.

SFI Press Release

Maria-Kalliopi Koutoulaki

Maria KoutoulakiName: Maria-Kalliopi Koutoulaki

Title: PhD student

E-mail: mariakout@cp.dias.ie

Phone: +353-1-4406656 Extn.315

Address: Astronomy & Astrophysics Section, 31 Fitzwilliam Place Dublin 2, Ireland

Research interests: Star formation, Near Infrared interferometry, Protoplanetary discs

Biographical Sketch: Maria Koutoulaki studied physics at the Physics Department, University of Crete (Crete, Greece). She is a PhD student at DIAS since September 2015 studying the inner regions of low mass Young Stellar Objects using near infrared interferometric techniques.

Alessio Caratti o Garatti

alessio

Name: Dr Alessio Caratti o Garatti

Title: Researcher

E-Mail: alessio@cp.dias.ie

Phone: +353 1 4406656 ext. 342
Address: DIAS, A&A Section, 31 Fitzwilliam Place, Dublin 2, Ireland

Related Links: http://www.researchgate.net/profile/Alessio_Caratti_o_Garatti

Publication list: http://adsabs.harvard.edu/cgi-bin/nph-abs_connect?library&libname=Alessio+Caratti+o+Garatti&libid=55ec9d6e9b

Research Interests ): Star formation, protostellar jets & disks, low-mass and high-mass YSOs, optical-infrared interferometry.

Biographical Sketch:
Alessio Caratti o Garatti got degree in Physics at Univeristy of Rome “La Sapienza” (2001), and completed his PhD in Astronomy at the University of Rome “Tor Vergata” (2006). He worked on protostellar jets in the NIR (2006-2008) as an experienced researcher in the FP6 Marie Curie Research & Training Network ‘JETSET’ (at the Thüringer Landessternwarte Tautenburg, Tautenburg, Germany). As a post-dcotoral researcher, he worked in the ‘Spitzer Gould Belt Survey Legacy’ at the Dublin Institute for Advanced Studies (2009-2011) and in infrared interferometry of YSOs at the Max Planck Institute for Radioastronomy in Bonn, Germany (2012-2014). From 2014 he is working again at DIAS where he is involved in the scientific exploitation of GRAVITY at VLTI and MIRI on the JWST.

Selected Publications:

Caratti o Garatti A. et al. “Tracing jet emission at the base of a high-mass YSO. First AMBER/VLTI observations of the Brγ emission in IRAS 13481-6124” 2016, A&A 589, L4 http://adsabs.harvard.edu/abs/2016A%26A…589L…4C

Caratti o Garatti A. et al. “AMBER/VLTI high spectral resolution observations of the Brγ emitting region in HD 98922. A compact disc wind launched from the inner disc region” 2015, A&A 582, A44 http://adsabs.harvard.edu/abs/2015A%26A…582A..44C

Caratti o Garatti A. et al. “A near-infrared spectroscopic survey of massive jets towards extended green objects” 2015, A&A 572, A82 http://adsabs.harvard.edu/abs/2015A%26A…573A..82C

Caratti o Garatti A., Garcia Lopez R., et al. “The outburst of an embedded low-mass YSO in L1641” 2011 A&A 526, L1 http://adsabs.harvard.edu/abs/2011A%26A…526L…1C

Caratti o Garatti A. et al. “H2 active jets in the near IR as a probe of protostellar evolution” 2006, A&A 449, 1077

Rebeca Garcia Lopez

VLT-small

Name: Dr. Rebeca Garcia Lopez

Title: Researcher

E-Mail: rgarcia@cp.dias.ie

Phone: +353 1 4406656 extn 352

Address: 31 Fitzwilliam Place, D02-XF86

Related Links:
https://www.researchgate.net/profile/Rebeca_Garcia_Lopez

Research Interests:
Star formation, circumstellar disks, protostellar jets, infrared interferometry.

Biographical Sketch:
Rebeca Garcia Lopez studied Physics at La Laguna University (Canary Islands, Spain). She completed her PhD at the University of Rome “Tor Vergata” in 2009, where she studied the properties of protostellar jets to find clues about their origins. This triggered her interest in high spatial resolution studies of young stellar objects. The quest to observe the jet central engine brought her to work at the interferometric group of the Max Planck Institute for Radioastronomy in Bonn (MPIfR), where she became an expert in interferometric observations of young stars. From 2014, she is working at the Dublin Institute for Advance studies where she is involved in the scientific exploitation of GRAVITY, the second generation interferometric instrument for the VLT-interferometer. Recently, she has been awarded with a Marie Sklodowska-Curie individual Fellowship to investigate the properties of the innermost regions of protoplanetary discs.

Selected Publications:
Garcia Lopez, Rebeca; Kurosawa, Ryuichi; Caratti o Garatti, Alessio, et al. “Investigating the origin and spectroscopic variability of the near-infrared H I lines in the Herbig star VV Ser”, Monthly Notices of the Royal Astronomical Society, Volume 456, p. 156-170, 2016.
(ads link: http://adsabs.harvard.edu/abs/2016MNRAS.456..156G)

Caratti o Garatti, A.; Garcia Lopez, R.; Ray, T. P.; Eislöffel, J.; Stecklum, B.; Scholz, A.; Kraus, S.; Weigelt, G.; Kreplin, A.; Shenavrin, V. “Investigating 2MASS J06593158-0405277: AN FUor Burst in a Triple System?” The Astrophysical journal Letters, Volume 806, id. L4, 5pp, 2015. (ads link: http://adsabs.harvard.edu/abs/2015ApJ…806L…4C)

Garcia Lopez, R.; Tambovtseva, L. V.; Schertl, D.; Grinin, V. P.; Hofmann, K.-H.; Weigelt, G.; Caratti o Garatti, A. “Probing the accretion-ejection connection with VLTI/AMBER. High spectral resolution observations of the Herbig Ae star HD 163296”, Astronomy & Astrophysics, Volumne 576, id. A84, 13pp, 2015. (ads link: http://adsabs.harvard.edu/abs/2015A%26A…576A..84G)

Antoniucci, S.; García López, R.; Nisini, B.; Caratti o Garatti, A.; Giannini, T.; Lorenzetti, D “POISSON project. III. Investigating the evolution of the mass accretion rate”, Volume 572, id. A62, 20pp, 2014. (ads link: http://adsabs.harvard.edu/abs/2014A%26A…572A..62A)

Garcia Lopez, R.; Caratti o Garatti, A.; Weigelt, G.; Nisini, B.; Antoniucci, S. “Spatially resolved H2 emission from a very low-mass star”, Astronomy & Astrophysics, Volume 552, id. L2, 6pp, 2013. (ads link: http://adsabs.harvard.edu/abs/2013A%26A…552L…2G )

Colm Coughlan

colm_coughlan

Name: Dr. Colm Coughlan

Title: Post-doctoral research fellow

E-Mail: coughlan@cp.dias.ie

Phone: +353-1-4406656 x358

Address:Astronomy & Astrophysics Section, 31 Fitzwilliam Place Dublin 2, Ireland

Related Links www.colmcoughlan.com, https://ie.linkedin.com/in/colmpcoughlan

Research Interests: radio astronomy, imaging and calibration algorithms, high performance computing, big data, long baseline interferometry, YSO jets, AGN jets and polarimetry

Biographical Sketch:

Colm is a post-doctoral research fellow in the Star Formation group at DIAS with a particular interest in high performance scientific computing. He is currently the PI of the “New discoveries at low frequencies” project which uses the high performance computing facilities at the Irish Centre for High End Computing to search for signals from Young Stellar Objects (YSOs) and exoplanets using the LOFAR radio interferometer. Colm is part of the team that recently obtained the first detection of a YSO jet at LOFAR frequencies. He has also developed radio imaging algorithms for very long baseline radio polarimetry. His research interests include high performance scientific computing, big data in astrophysics, calibration and imaging algorithms for radio astronomy, relativistic jets from Active Galactic Nuclei and jets from YSOs.

Selected Publications:

GMRT detections of low-mass young stars at 323 and 608 MHz – Ainsworth, Rachael E.; Scaife, Anna M. M.; Green, David A.; Coughlan, Colm P.; Ray, Tom P. (http://adsabs.harvard.edu/abs/2016MNRAS.459.1248A)

Connecting magnetic towers with Faraday rotation gradients in active galactic nuclei jets – Mahmud, M.; Coughlan, C. P.; Murphy, E.; Gabuzda, D. C.; Hallahan, D. R. (http://adsabs.harvard.edu/abs/2013MNRAS.431..695M)