2016 Honours Projects with NJR

Here’s my list of Honours projects for 2016. If you are keen to do one of these, please email me or drop by to discuss.

1. Creating a Differential Image Motion Monitor for Astronomical Seeing

This project will require the student to set up one of the Department’s 40 cm Meade telescopes as a seeing monitor. Seeing is a measure of atmospheric turbulence. This project will require the student to work with the engineering facilities to affix a DIMM mask to the telescope, set up a CCD camera on the telescope and run DIMM observation software to measure atmospheric seeing. The student will have to be comfortable working at night, and have a full driver’s licence.

Use one of these!

         Use one of these!

 

 

 

2. Multidimensional Dataset Visualisation with an Oculus Rift

This project will require the student to investigate the software available for displaying multidimensional datasets using an Oculus Rift. The key objectives are to have a suite of software tools available to allow a user to navigate complex multidimensional data via virtual reality immersion. Students should have a reasonable level of programming ability.

Use one of these!

             Use one of these!

 

 

3. Finding Earth-sized planets orbiting White Dwarf stars

This project will require the student to obtain estimates of the number of white dwarf stars visible in the 1.8 meter MOA-II telescope field of view, estimate how many of these systems would have a transiting earth-sized planet, and propose an observation schedule for use by MOA to discover these planets.

Find some of these!

                   Find these!

 

 

 

4. Detecting Atmospheric Meteor trails

Meteors entering the Earth’s atmosphere leave a trail of ionised particles. We have a software-defined radio system set up to detect radio signals from Christchurch which are forward-scattered off these trails. This system is working successfully, but can be improved upon. The honours project will comprise optimising the system to improve the number of detected meteor trails, to compile statistics of this year’s meteor showers and report them to the International Meteor Organisation. The project would also comprise making the observed data available via the Internet in real-time.

Analyse these!

                                                 Analyse these!

                                                 Analyse these!

Observing for MOA at Mount John, Lake Tekapo

I’m doing an observing run at Mount John, Lake Tekapo!

Selfies with a DSLR aren't easy. Me on Mt John with the MOA-II telescope in the background.

Selfies with a DSLR aren’t easy. Me on Mt John with the MOA-II telescope in the background.

Minor Planets in the MOA Database

Here are some little animations of minor planets passing through some of the crowded star fields in the MOA database. The images are difference images, meaning that the images of stars have been subtracted away. What you’re looking for in each of these animations below is a moving dot — an asteroid moving through the field.

Each one of these images is 1 / 640 th of the total field of view of one of the MOA-II telescope’s fields. And MOA observes 22 fields towards the Galactic Centre. I found these by eyeballing the images. Working on a better way.

 

 

 

 

 

Networking (the computer kind) for Non-Network Engineers

This week’s seminar was presented by Charles Yun and Jeff Weekley, of REANNZ (Research and Education Advanced Network New Zealand Ltd) which runs the network infrastructure between research institutions such as universities.

Their remit is to make sure that data can be passed between research institutions quickly, and not using the same pipeline as commercial internet — i.e, the pipes channelling youtube videos of kittens.

This was of particular interest to me, as I recently tried to copy 2.5Tb of data from Massey Albany to Auckland Uni. This took far longer than it should have. It was almost going to be more convenient to drive out there with a hard disk and wait for an hour or two for the data to copy, then drive back.

image003

Here are Charles’ and Jeff’s talks:

REANNZ colloq talk-but i am not a network engineer (Charles’ talk)

REANNZ.Weekley.HighSpeedFileTransfer (Jeff’s talk)

MJUO 50th Anniversary Symposium

As Dr. Rattenbury has already mentioned in a previous post, the golden anniversary of the Mount John University Observatory (MJUO) was celebrated this year. I was fortunate to have been given the opportunity to attend and absorb the individual experiences of the astronomers.

The symposium’s theme centered around the observatory’s past, present and future. What I found most charming were the many stories told by astronomers who have become part of its history and who have had MJUO become an important part in their own lives in return.

Many times it felt like I was being transported to a cozy chair by a fireplace with grandpa recollecting the fascinating stories of his life, the adventures he had as an astronomer.

Here are only some of the many interesting things I heard during the symposium.

Audrey Walsh reflected upon her father, Frank Bateson’s work in establishing MJUO. Frank Bateson is the father of NZ astronomy, is has been said. In his own words, he was a “businessman by profession, astronomer by nature”. Hearing these words was an extremely inspiring moment for me, for it brings to my mind the image of a man who was passionate about his work.

Ed Guinan gave an entertaining account of the adventures and misadventures he had during the year he spent at MJUO and NZ in general. It was disheartening to hear that a chart of his results, which he kept close to him instead of shipping it, out of fear of losing it, was after all lost to the USSR customs while travelling through Russia.

The talk given by Alan Thomas painted a vivid picture of the contrast between observational astronomy as it was done all those years ago and how it is done now. Part of the excitement then was enduring the cold of the nights, snuggled up against a telescope in the open, in a sleeping bag, with a hot beverage, looking through the eye-piece.

Graeme Kershaw’s talk highlighted the fact that many countries have lost contact with the night sky so that lots of people come to lake Tekapo just to see the stars. He also pointed out the growing frustration of the elderly who grew up gazing up at the stars but can not offer the same to their children.

Many other talks painted similar pictures and drove it home that MJUO is one of the world’s most beautiful and easily accessible telescopes, rich with history and memories of individuals.

I have come out from this celebration with a refreshed aspiration for astronomy!

50th anniversary of the Mount John University Observatory

The Mount John University Observatory celebrates its 50th anniversary this year. To mark the occasion, a symposium was held 6 – 8 May, at Tekapo, at the foot of the mountain.

Many speakers — myself included — gave talks about the part MJUO played in their lives. I spent six months of 1999 observing for the Microlensing Observations in Astrophysics (MOA) collaboration. It was an experience that I’ll never forget. One of the other speakers commented that visiting Tekapo was good for the soul. I couldn’t agree more. The place is spectacular.

John Hearnshaw, past director of the MJUO and former head of the Department of Physics and Astronomy at the University of Canterbury, was the driver behind the symposium. When he kindly accepted my offer of a talk, he told me to spend more time on reminiscences than science. It was that kind of conference.

I met Audrey Walsh, the daughter of Frank Bateson, the astronomer charged with deciding where to place an observatory for the University of Canterbury.

Bateson was instrumental in the founding of the Mount John University Observatory near Lake Tekapo, assisting the University of Canterbury in finding an appropriate location for the observatory.[3] Bateson was appointed astronomer-in-charge of the observatory after it opened in 1963; he held this position until his retirement in 1969. –– Wikipedia entry

Audrey recalled that her father was a man of focus and drive — and was never seen in public not wearing a suit.

Gerry Gilmore, New Zealand astronomer, cosmologist and professor at the Institute of Astronomy in Cambridge, is also the UK lead for ESA’s space satellite GAIA. I had the pleasure of introducing Gerry at a talk he gave to the Auckland Astronomical Society last week. More on GAIA in a later post. Gerry spoke at the symposium about his time on Mount John and his thoughts for the Observatory’s future. To those of us concerned with engaging politicians on the topic of supporting New Zealand astronomy, the need or otherwise of a National Observatory, or indeed the potential loss of capacity in instrumentation and observation skills, Gerry notes that we need to learn how to speak the language of the politicians.

On the general topic of Wither Mount John, I chatted with Karen Pollard, the present Directory of the Observatory. I also spoke with Graeme Murray, general manager of Earth & Sky — the operation that conducts public tours up the mountain.

Participants at the 50th Anniversary of the Mount John University Observatory.   The altitude positions appear to be sinusoidal.

Participants at the 50th Anniversary of the Mount John University Observatory. The altitude positions appear to be sinusoidal. Source: http://www.phys.canterbury.ac.nz/newsletter/2015/2015-05-15.pdf

It was also great to see Duncan Hall. Duncan inhabited an office across the corridor from mine during my time at Manchester University. His was the fearsome job of figuring out how to set up the Square Kilometer Array project. At the symposium, Duncan spoke of his past work in instrumentation for Mount John.

The first session of the final day was MOA-centric. Phil Yock spoke of the origin of the MOA collaboration, followed by Yasushi Muraki, who recounted the construction of the 1.8m telescope. I followed up with a few memories about my time up on the mountain. Fumio Abe brought the science of planetary microlensing to the fore, describing the background and our recent results.

There were many other talks, all engaging and interesting — too many to summarise here. The last activity of the symposium was a trip up the mountain. This was the first time in 16 years that I was there. I had expected changes, and there were plenty. Not so many however, that I felt the place unfamiliar. It reminded me instantly that this was a home I inhabited for a short, but forever memorable time.

Watching SkyWatch

Just had a very interesting chat with some of the folk at http://skywatch.co/. They are interested in collecting information about astronomical transient data and making that information available real-time to anyone who wants it, in a standardised format.

They started off with the GCN, the network that disseminates information about gamma-ray bursts from space satellites, to ground based observatories. But they are looking to expand:

skywatch

But GCN is just one of many networks. So we continued to build…

And they are talking to astronomers about their data, what they collect, and how SkyWatch can help.

19th Annual Microlensing Conference

Annapolis is a pretty city, and played host to this year’s annual microlensing conference. Our host was Dr Rich Barry, Goddard Space Flight Centre.

There were a lot of interesting talks, planet discoveries and techniques being a primary focus, but with a strong influence coming from the proposed space telescope missions which may include microlensing observations in their additional science programmes.

There are two space telescope missions are ESA’s Euclid and NASA’s WFIRST/AFTA. Both are exciting missions. I contributed in a small way to the proposal to use Euclid for planetary microlensing. The last piece of work I did at Manchester was to write code to simulate microlensing observations, to estimate how many planets a space telescope could find, and of what type. I never finished that code, but it was taken over by Matthew Penny at Manchester as part of his PhD work, and he turned it into an excellent piece of software. Matt wrote an excellent paper on it.

It was great to catch up with Matt, and lots of other microlensers at the conference. Ashna Shara (my PhD student) was also there, to get to know the field, meet the people, and try to refine the topic of her PhD.

I gave a talk on — not microlensing — but on a piece of work that uses the large databases that the microlensing survey teams have accumulated. Next conference I hope to have something more on planetary microlensing!