Tag Archives: ViViD Sydney

“The Story of Light: Surveying the Cosmos”, in Vivid Sydney Ideas 2017

Article originally written by Ángel R. López-Sánchez for the “AAO Observer” 132, August 2017.

Following the success of our sold-out Event “The Story of Light – The Astronomer’s Perspective” for ViVID Sydney Ideas 2015, and “The Story of Light – Deciphering the data encoded on the cosmic light” (see photos and the video of this event), the Australian Astronomical Observatory (AAO) continued its collaboration with ViVID Sydney 2017 organizing “The Story of Light – Surveying the Cosmos”.

This successful science communication event was held at the Powerhouse Museum (Sydney) on Sunday 4th June 2017. Having an audience of 300 people, it was sold out more than two weeks before the event.

“The Story of Light – Surveying the Cosmos” was connected to the 2017 Southern Cross Astrophysics Conference: Surveying the Cosmos, the Science from massively multiplexed surveys, that was held in Luna Park, Sydney, between 5th and 9th June 2017.

Poster for the AAO’s “The Story of Light – Surveying the Cosmos” Science Communication event for Vivid Sydney Ideas 2017. Credit: Angel R. Lopez-Sanchez.

In this event, five professional astrophysicists discussed how astronomers map the Cosmos using the big data collected with optical and radio telescopes by large astronomical surveys.

How do astronomers explore the Universe? Astrophysicists use extremely sensitive telescopes and instruments to collect the light emitted by stars, gas and galaxies. The analysis of this data provides the information needed to unlock the mysteries of the Cosmos.

However, this is not an easy task. Over the last two decades large international collaborations have been formed with the aim to map the skies, catalogue celestial objects, extract their properties and perform statistical analyses. These large astronomical surveys are now providing major advances in our understanding of the Cosmos at all scales, from searching for planets around other stars to detecting gravitational waves.

Australia is at the forefront of these collaborations thanks to the unique instruments at the Anglo-Australian Telescope (AAT) and the development of radio-interferometers as the Australian SKA Pathfinder (ASKAP).

Panel members and MC of AAO’s “The Story of Light – Surveying the Cosmos” Science Communication event for Vivid Sydney Ideas 2017. From left to right: Katie Mack, Alan Duffy, Simon O’Toole, Tara Murphy and Ángel López-Sánchez. Credit: Duncan Wright (AAO/UNSW).

The panel members were Dr. Simon O’Toole (Australian Astronomical Observatory), who talked about surveying stars and exoplanets, Dr. Ángel R. López-Sánchez (Australian Astronomical Observatory / Macquarie University), who discussed how we surveying the galaxies, A/Prof. Tara Murphy (University of Sydney / CAASTRO), who invited us to surveying the invisible Universe, and Dr. Katie Mack (University of Melbourne), who talked about surveying the deep Universe. The event was hosted by famous astrophysicist and science communicator A/Prof. Alan R. Duffy (Swinburne University).

After short (15 minutes) talks, the panel answered questions about the Universe and challenging Physics questions as the nature of the dark matter and the dark energy. They also received some more philosophical questions that engaged the audience.

More information:

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Video of the “Story of Light” in Vivid Sydney 2016

Following the success of our sold-out Event “The Story of Light – The Astronomer’s Perspective” for ViVID Sydney Ideas 2015, the Australian Astronomical Observatory (AAO) continued its collaboration with ViVID Sydney 2016 organizing “The Story of Light – Deciphering the data encoded on the cosmic light”. But actually it was me who was in charge of the organization.

The five astronomers speaking during our “Sydney Vivid Ideas: The Story of Light” started at the Powerhouse Museum, Sydney, 29th May 2016. From left to right: Luke Barnes, Alan Duffy, Vanessa Moss, Liz Mannering and Ángel López-Sánchez. Photo credit: Jenny Ghabache (AAO).

The event was held at the PowerHouse Museum in Sydney on Sunday 29th May 2016. More than 160 people attended this special event. Five young astronomers (me included) talked about Astronomy and Big Data: the light and light-based technologies developed in Australian astronomy for both optical and radio telescopes; the tools, platforms, and techniques used for data analysis and visualization; how astronomers create simulation data; how some of these techniques are being used in other research areas; and the major scientific contributions toward our understanding of the Universe. Indeed, astronomers have been pioneers in developing “Data Science” techniques to make sense of this huge data deluge, many of which are now used in other areas.

We recorded all the event in video, and it is now publicly available  in the AAO YouTube channel. Some photos of the event are also compiled below. I want to thank AAO/ITSO Research Astronomer Caroline Foster for helping recording and editing the video and Jenny Ghabache (AAO) for taking the photos of the event.

Full recording of the event “The Story of Light 2016: Deciphering the data encoded on the cosmic light” organised by the AAO for Vivid Sydney Ideas 2016. Credit: AAO. Acknowledgment: Caroline Foster (AAO).

The event was hosted by Alan Duffy (Swinburne University). I was in charge of explaining optical astronomy, the AAO, optical surveys and big data. Then my colleagues  Vanessa Moss (Univ of Sydney/CAASTRO), Luke Barnes (Univ. of Sydney) and Liz Mannering (AAO/ICRAR) discussed radio astronomy, the ASKAP and big data (Vanessa), simulating, analysing and visualizing astronomy data (Luke) and astronomy data archive, the All-Sky Virtual Observatory (ASVO) and other virtual observatories (Liz ). After the short 12-15 minutes talks (well, as usual I took a bit more time), the panel welcomed questions from the audience (and even from Twitter using #SoLSydneyIdeas) for a discussion session about Light and Astronomy and the Australian contribution to the improvement of our understanding of the Universe.

The Lecture Theatre a few minutes before our “Sydney Vivid Ideas: The Story of Light” started at the Powerhouse Museum, Sydney, 29th May 2016. Photo credit: Jenny Ghabache (AAO).

Our host, Alan Duffy, introducing the event. Photo credit: Jenny Ghabache (AAO).

AAO/MQU Research Astronomer Ángel R. López-Sánchez talking about optical astronomy, the AAO and big data. Photo credit: Jenny Ghabache (AAO).

Vanessa Moss (Univ. of Sydney/CAASTRO) talking about radioastronomy, the ASKAP and big data. Photo credit: Jenny Ghabache (AAO).

Luke Barnes (Univ. of Sydney) talking about simulating, analysing and visualizing astronomy data. Photo credit: Jenny Ghabache (AAO).

Liz Mannering (Univ. of Sydney) discussed astronomy data archive, the All-Sky Virtual Observatory (ASVO) and other virtual observatories. Photo credit: Jenny Ghabache (AAO).

Panel discussion with all participants answering questions from the audience. Photo credit: Jenny Ghabache (AAO).

Angel Lopez-Sanchez answering a question from the audience. Photo credit: Jenny Ghabache (AAO).

And last… Well, if you want to see only my talk, here it is:

Come to our ViVID Sydney 2016 Astronomy Event!

During the last months I’ve been working hard to organize an Astronomy event during the famous ViVID Sydney festival, 27th May – 18th June 2016. With the title “The Story of Light – Deciphering the data encoded on the cosmic light”, this science communication event is presented by the Australian Astronomical Observatory (AAO). It follows our sold-out Event “The Story of Light – The Astronomer’s Perspective” for ViVID Sydney 2015, that was originally planned as part of the International Multiwavelength Dissection of Galaxies  Conference I organized last year (now I’m realizing I never talked about this here…).

Banner image of the “The Story of Light – Deciphering the data encoded on the cosmic light” event on Sunday 29th May 2016. The image represents a multiwavelength photo of the galaxy M101 (center), the 2dF Galaxy Redshift Survey (AAO, left and right), the equations of the stellar interiors, and a background of 1s and 0s codifying astronomical data. Credit of the composition: Ángel R. López-Sánchez. Credit of the 2dFGRS: AAO, Credit of image of M 101: Ángel R. López-Sánchez.

Banner image of the “The Story of Light – Deciphering the data encoded on the cosmic light” event on Sunday 29th May 2016. The image represents a multiwavelength photo of the galaxy M101 (center), the 2dF Galaxy Redshift Survey (AAO, left and right), the equations of the stellar interiors, and a background of 1s and 0s codifying astronomical data. Credit of the composition: Ángel R. López-Sánchez. Credit of the 2dFGRS images: AAO. Credit of image of M 101: Ángel R. López-Sánchez.

This event will be held at the PowerHouse Museum (Sydney) on Sunday 29th May, 2:00-3:30pm. Four professional astrophysicists will discuss what astronomy provides in the context of exploiting big data:

  • The light and light-based technologies developed in Australian astronomy for both optical and radio telescopes; the tools, platforms, and techniques used for data analysis and visualization
  • How astronomers create simulation data
  • How some of these techniques are being used in other research areas and;
  • The major scientific contributions toward our understanding of the Universe.

Indeed, for decades, astrophysicists have developed novel approaches to exploring the light of the Cosmos, most recently through data-intensive techniques, analytics and visualization tools to extract the information collected by extremely sensitive telescopes and instruments. Astronomers have been pioneers in developing data science techniques to make sense of this huge data deluge, many of which are now used in other areas.

There is no need to say that I’m very excited about this new ViVID Sydney event, not only because of all the effort I’ve already put into this but also because I’m one of the astronomers in the panel! I’ll be talking about optical Astronomy, discussing the importance of the optical spectroscopy, how it is done with the AAO telescopes, and describing some of their current a future instruments.

But that is not all. I’m also extremely happy to do this with four great astronomers and science communicators:  Vanessa Moss (CAASTRO/Univ. of Sydney), who will talk about radioastronomy & big Data and the ASKAP,  Luke Barnes (Univ. of Sydney), discussing simulating, analysing and visualisation of astronomy data, and Elizabeth Mannering (AAO/ICRAR), who will describe the importance of Data Archive, Virtual Observatories, and the ASVO project at the AAO. On top of that, the host of our event is the famous astronomer and science communicator Alan Duffy (Swinburne University). I’m sure it is going to be quite an experience.

This event, however, is not free, as a ticket for the entry to the PowerHouse Museum ($15  for adults, $8 concession) is needed. You can get your tickets in the Event Webpage of the PowerHouse Museum.

For more information and a full description of the speakers, please check our AAO webpage. The link to this event in the ViVID Sydney website is here.

I hope to see you there!