Expecting to Fly (Let’s Get On With It)

JWST full scale model at NASA's Goddard Space Flight Institute (Image: NASA)

 

For 4 years, I’ve been a member of a team that will deliver part of the biggest ever astronomical space mission: the James Webb Space Telescope. In just a few weeks’ time, we’ll begin testing the flight hardware for MIRI, the telescope’s mid-infrared instrument, that will allow it to peer deeper into dense dusty and cold regions of our Galaxy and the Universe than its three fellow instruments. “Flight hardware” means that these are the actual bits and pieces that will be launched into space on board an Ariane rocket. Yes, that’s seriously cool.

My four years on the team makes MIRI my longest relationship in science yet. I’m rather fond of the little tyke. But four years is nothing in today’s era of mega-science. Literally hundreds of people have had a relationship with some part of the James Webb mission for well over a decade. Some may well be approaching their silver anniversary. Those of you with instrumentation experience know well what this means: meetings, documents, designs, documents, simulations, telecons, more meetings, reviews, procurement, manufacturing, testing, negotiations, documents, meetings. Endless, over and over.

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.Astronomy 3: Hacks hacks hacks

A room with a view: beautiful New College (image: Rob Simpson)

Apologies for my short blogging hiatus due to technical reasons – I’m sure I’ve all bored you with my tweeting about it – and excitingly I’m now at New College Oxford for the 3rd instalment of the .Astronomy conference. I’m always excited to get out of the office, off the telecon, to hang out with people with creative ideas who aren’t afraid to Make Stuff Happen.

This year’s conference is spread over three days, with the hack day taking place on the middle day – that’s today!

We opened the conference yesterday with a talk by the most excellent Dr. Jill Tarter, Director of the SETI Institute, whom we were chuffed to add to our participants list. Carolina gave a full summary of the day’s proceedings with some good pictures over on her blog. Today we’re having the hack day, and most of us have been ensconced in corners in twos and threes working on our pet projects. Will Stuart finally have developed the improved internet by morning?

We kicked off the morning with talks on astro-python and CDS [pdf] by the Thomas-es Robitaille and Boch, respectively. We have a number of python enthusiasts amongst the participants who’ve written some great packages that facilitate automated access to and manipulation of astronomical data formats. I’ve been playing around with the ATpy package for my own little hack project and it’s the first time I’ve been productive in python – pat on back to self for that. I was also pleased that we were joined today by Cameron Neylon, probably Britain’s biggest open science advocate. It’s always great to get a few non-astronomers in the club for the broader view.

Our Man in Havana from Microsoft Jonathan Fay is once again in attendance with his customary bravery in the face of a true barrage of Apple devices. Last time he dazzled us with the capabilities of World Wide Telescope, and this year he upped the ante by demonstrating the awesomess that is WWT as controlled by Kinect. Space porn: kicking people porn’s ass any day.

Factlet of the day, courtesy of Rob: there are only 12 armies in the world that are bigger than the Zooniverse community.

Speaking of interpretative dance – keep your eyes peeled on here for the appearance of an astro-themed music video. Lyrics: Amanda, music: Trad./Jon Yardley, backup vocals and moves: Carolina, Ed, Jose, Rob and yours truly, direction: Markus. The content of our creation is highly questionable; if there had been guitars, we would have smashed them.

I’m looking forward to seeing the result of everyone’s hacking efforts – most of which are continuing well into the evening aided by pizza and beers. Results will undoubtedly be posted here in days to come. You can follow the talks via ustream, on twitter via hashtag #dotastro, and pictures are posted to this Flickr group.

 

The Galactic Centre black hole in close-up

ResearchBlogging.orgThe research into the nature and properties of the black hole at the centre of the Milky Way galaxy is one of the highlights of astronomical discovery of the last two decades. Using the biggest telescopes on the planet and state of the art observing technology, we’ve been able to track the young massive stars that are whizzing around the black hole in a dense cluster, and shown with a high level of certainty that the galaxy’s central object really is a supermassive black hole, referred to as Sagittarius A*. Using these stellar orbits, we’ve also determined its mass – 4 million solar masses.

Now you see it, now you don't! The square arcsecond surrounding the galactic centre black hole, seen in the near-infrared. On the left, no source is visible, later on (right) a flare brought it into view. The star marked S2 is the closest known star to Sgr A*. Click to embiggen. (ESO)

With the next generation of infrared instrumentation, we’re planning to take the next step in the study of Sgr A*. For this, we’ll use interferometry – the combination of light beams from a number of telescopes – to zoom into the black hole closer than ever before. In a paper posted to the Arxiv late last year, Vincent et al discuss the potential of a new interferometric instrument, Gravity, for testing black hole physics near Sgr A*.

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Exciting announcement

As most of my bloggy visitors will know, I’m a strong supporter of web- and blog-based scientific debate. I believe that the formal, semi-formal and casual discussions that take place all over the web can really enrich our experience of science – from learning entirely new things about completely different areas of science, to gaining new insights into problems in our own fields of research and building a network that’s unrelated to our geographical location or seniority in the science hierarchy. This is not just some baseless conviction; this has really been my experience since I started reading and writing blogs.

So with that in mind, I’m really pleased to announce that, from January 2011, I’ll be the new Physical Sciences Editor for ResearchBlogging. Each week I’ll be picking out some of the most interesting research posts in the fields of physics, astronomy, maths, engineering, chemistry, computer science and geosciences, from the many bloggers that are signed up with the site. I’ll do my best not to be too biased towards astronomy – as my day-to-day work is kind of a giant stew of  several areas of science and engineering, my interests are spread wide and far anyway. And of course I’ll still be writing my own research posts on here as well.

A big thanks to Dr Skyskull, whose shoes I’ll be attempting to fill, and an excited hello-wave to fellow new editor Krystal D’Costa of Anthropology in Practice, and the rest of the team of editors. And to all the bloggers: I look forward to reading all your excellent work. Keep it coming!

Meet the Milky Way

One of my favourites

This post was chosen as an Editor's Selection for ResearchBlogging.orgBack in July I wrote about my involvement in a new Zooniverse citizen science project, the then unnamed Project IX. In the last few months, Project IX became the Milky Way Project, and today yesterday it went live! A massive congratulations to Rob and the team who did a fabulous job in getting this all together.

In the Milky Way Project, we’re showing you colour images from our galaxy, the Milky Way, which were created from three wavelength channels from instruments on board the Spitzer Space Telescope. Spitzer observes the Universe in the infrared, and is therefore sensitive to objects that are colder than those that emit visible light. This includes the dense dusty clouds, concentrated in the disk of our galaxy, in which new stars are being formed. Although Spitzer is small in size, it has opened up a new window on our own and more distant galaxies in the infrared. The hundreds of thousands of images in its science archive are rich hunting grounds – particularly for those interested in star formation studies.

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