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Topics - Geoff

Pages: [1] 2 3 ... 15
1
Star space / Unusual Spiral Galaxy ESO 137-001
« on: March 08, 2014, 07:27:23 am »
This galaxy is a good example of a process known as ram pressure stripping.



Spiral Galaxy ESO 137-001

Quote
ESO 137-001 is located in the southern constellation of Triangulum Australe, in the heart of the galaxy cluster Abell 3627.
The new composite image of ESO 137-001, taken with Hubble and Chandra, captures the galaxy in stunning detail and also something more dramatic – intense blue streaks. These streaks are actually hot young stars, encased in wispy streams of gas that are being torn away from the galaxy by its surroundings as it moves through space. This violent galactic disrobing is due to a process known as ram pressure stripping – a drag force felt by an object moving through a fluid. The fluid in question here is superheated gas, which lurks at the centers of galaxy clusters.

2
WELCOME TO THE NEW EDUCATION AREA! / AstroEDU site
« on: March 07, 2014, 02:14:07 pm »
A new site which will be of interest to anyone interested in education and astronomy is AstroEDU:

AstroEDU Site

The site is managed by Edward Gomez of the Las Cumbres Observatory Global Telescope and Pedro Russo of Leiden University in the Netherlands.

3
Star space / Inexpensive mirrors on the way?
« on: December 06, 2013, 07:45:19 pm »
Just found this article about a project that DARPA is working on to make cheap, large-scale mirrors from membranes which can withstand launch shocks and can be made quite large.

DARPA's Mirror Killing Membrane

4
Star space / Festival of the Planets
« on: August 29, 2013, 10:18:17 am »
Just received this from the RAS (though it is not run by or for the RAS):

Festival of the Planets

From 8-13 September hundreds of astronomers from all over the world will arrive in the capital, bringing with them a huge variety of different public events to get Londoners involved in astronomy.
Events will include organised stargazing in Regent’s Park, a space-themed variety performance, a science fiction film night, exhibitions, art installations and public talks.
Astronomers and space explorers will be on hand to meet the public, and some of them will even be doing some space-busking!
The Festival of the Planets runs alongside the European Planetary Science Congress (EPSC), which is the largest meeting in Europe dedicated to planetary science.  EPSC 2013 is hosted by UCL (University College London) and it is the first time that EPSC will have been held in the UK.
The Festival of the Planets has been organised in collaboration with partners including the British Interplanetary Society, the Baker Street Irregular Astronomers, the Natural History Museum and the Royal Society.
For more information on the events, visit Festival Info .

5
Star space / Lee Smolin talk - 22 May 2013
« on: April 22, 2013, 11:04:55 am »
The Institute of Physics is hosting a talk by Lee Smolin on 22nd May 2013 - it's free but you need to book before the places run out.

More Info

6
Zoo for Adult Learners / Free Astronomy classes from a nobel laureate
« on: February 21, 2013, 10:38:53 am »
A piece from The Australian about a class starting next year using the internet and given by Brian Schmidt.

Nobel laureate Schmidt to offer free astronomy classes

7
Star space / Fingerprints of the Universe
« on: February 13, 2013, 01:33:45 pm »
A lecture at the National Maritime Museum on Thursday 28th March 19:00 (£5 entrance fee)

Quote
Explore the fascinating complexities of cosmic microwave background radiation, led by Dr. Hiranya Peiries from University College London

8
Standards / How to teach astronomy
« on: January 15, 2013, 01:15:57 pm »
The following article is from the Guardian newspaper and mentions Galaxy Zoo.

How to teach astronomy

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Astronomy is enjoying a huge revival, thanks in part to Stargazing Live, with GCSE astronomy saved from the scrap heap and local astronomy and science clubs seeing great surges in membership. For teachers wanting to harness all this enthusiasm, the Guardian Teacher Network has some stellar resources for stargazers of all ages.

9
Myself and Capella (Julianne) are planning on visiting the Museum of London in Docklands on a Saturday afternoon in the near future.

Anyone is free to join us - it's a very interesting museum, all about the history of the Thames and trade in London.

Museum of London, Docklands

Post to this topic if you're interested.

10
Star space / Solar flares prediction?
« on: September 01, 2012, 03:51:19 pm »
Not sure what to make of this article - maybe Graham can shed some light!

New system could predict solar flares

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Researchers may have discovered a new method to predict solar flares more than a day before they occur, providing advance warning to help protect satellites, power grids and astronauts from potentially dangerous radiation.
The system works by measuring differences in gamma radiation emitted when atoms in radioactive elements "decay," or lose energy. This rate of decay is widely believed to be constant, but recent findings challenge that long-accepted rule.

11
Star space / Future exploration of the Sun
« on: August 17, 2012, 06:01:44 am »
An article about future plans for exploring the Sun: Scientists set bold plan for future exploration of the Sun

12
Star space / 3-D Universe Map
« on: August 09, 2012, 05:54:28 am »
Not sure if this has been posted before but the National Geographic site has a 3-D map of the universe created from SDSS imagery with a "fly through".

3-D Universe Map

13
After our very successful and enjoyable meet-up in Oxford earlier this year people have been asking for another meet-up in Oxford, this time without the copious rain!

We are planning on a meet-up in Oxford over the weekend of 15/16th September.

We could have dinner at the Royal Oak on the Saturday evening and Sunday lunch at the Head of the River pub.

The Royal Oak Pub

The Head of the River Pub

For anyone staying over on the 15th here's a link to hotels and places to stay: Places to stay in Oxford

Stay in an Oxford College

Food in Oxford

On Saturday morning (15th) we could meet at the Ashmolean Museum café: Ashmolean Cafe

To see where this is located, enter the postcode OX1 2PH into Google Maps

If you’re interested in joining us please post to this thread so we can get an estimate of numbers for booking the Royal Oak.

Also, if there is something on in Oxford you want to see, let us know.

14
Star space / Star's dust belt vanishes
« on: July 05, 2012, 01:32:04 pm »
Not sure what to make of this: Astronomers puzzled as star's dust belt vanishes

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In just three years, the cloud of dust surrounding a young star has disappeared, indicating that there's something wrong with our current ideas of planet formation. It may mean that planets can form much more quickly than previously thought or, alternatively, that stars harboring planets could be far more numerous.

15
Star space / Runaway White Dwarf?
« on: June 30, 2012, 01:48:32 pm »
Something for the collectors of hyper-velocity stars.

From the Bad Astronomy blog: Cannonball star blasts away from the scene of the crime

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Stars are messy affairs, and when massive ones explode they tend to have internal factors that distort that nice, smooth expansion. One big factor is that the actual point of explosion is off-center in the star, not at its exact heart. That can create a massively asymmetric explosion, blasting vast amounts of material and energy off to one side.

There's an interesting image to go along with the blog article which is worth a look.

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