Author Topic: Do It Ourselves Science - The Irregulars Project  (Read 43125 times)

weezerd

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #15 on: December 11, 2008, 07:22:48 pm »
Couldn't that suggestion be the subject of a research project when the data is assimilated? Is that not what Richard was looking for?
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waveney

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #16 on: December 11, 2008, 07:35:12 pm »
In a while we will have some usable data, later we will have more data.

Many people can pose questions that may or may not be answerable using the data available (including the SDSS data).

Some may not be resolvable with the data, but many will. 

I am reluctant to add new buttons at this stage (though it would be easy to do), but one has to consider how to evaluate the results where only some clicks will include the new category.  There are questions I would add myself if I was starting now.  But I am content with what we have asked, lets see what comes out.


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Alice

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #17 on: December 11, 2008, 07:37:25 pm »
In any case, it would be easy enough to make a list of galaxies which did and did not include such and such features - just like the overlaps . . . :)

zookeeperKevin

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #18 on: December 11, 2008, 07:49:05 pm »
How do you plan to analyse the data?

waveney

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #19 on: December 11, 2008, 08:27:35 pm »
How do you plan to analyse the data?

One answer is to say I don't know.  But a better answer is to say:

1) Filtering to remove silly results and find and fix for objects that not the corect ones (e.g. where the Object is a foreground star)
(Done for some draft data as a proof of method)

2) Bringing the results together with SDSS data under CasJobs, so all the useful photometric data can be extracted from SDSS for the objects under study (colour etc).  (done for some draft data as a proof of method)

3) Each classification question can be evaluated in more than one way depending on what is wanted.  For example the "Cores" question can bring together the possibles and yeses to give a set where most people think there are cores, or one can only use the hard yeses for the certain cases, or give a waiting for yes, greater than the possibles, for an alternative view.

4) There are many many subsets of the data can be selected, one may only want clear images, or those with cores, more than 10 star forming regions or what ever.

5) One possibility is to then "plot anything against anything" (done a little)

But I think it is better to operate in a more structured way:

e.g. Alice is thinking about the relationship of Irregulars with other nearby galaxies.  I am wondering about the progression between the truly irregular and regular spirals, also about the shapes of some of them.  And I know Jules has a question in mind as well.

The more I look at them the more questions come to mind.  Some may be harder than others, as some aspects of the irregulars can not (as far as I know) be derived from this data. 
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zookeeperKevin

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #20 on: December 11, 2008, 09:59:46 pm »
I'm very curious to see how this develops. To my knowledge, this is the first "user generated" science project ever.

What's the ultimate goal? Will you try and write a paper?

Alice

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #21 on: December 11, 2008, 10:10:04 pm »
To my knowledge, this is the first "user generated" science project ever.

This makes me shiver . . . :o :o :o

Will you try and write a paper?

Will we? I hope so! ;D

jules

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #22 on: December 11, 2008, 10:28:29 pm »
I'm very curious to see how this develops. To my knowledge, this is the first "user generated" science project ever.

What's the ultimate goal? Will you try and write a paper?
I am also very curious!! I keep up with the irregular classifications and have classified all of them apart from the ones most recently added. They are intriguing and I have lots of questions and ideas for research but haven't analysed data for many years. I would love to be able to contribute something more than just clicks so it will be a very interesting few weeks! :)


Thomas J

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #23 on: December 14, 2008, 03:15:10 pm »
Waveney, I wonder if it would be interesting to do some statistical analysis on possible/probable 'proto-spirals' among the irregulars.
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waveney

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #24 on: December 14, 2008, 03:20:19 pm »
Waveney, I wonder if it would be interesting to do some statistical analysis on possible/probable 'proto-spirals' among the irregulars.

Definitely - it's on my list of questions...   You should be able to extract useful data from the classification to do that.

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Lovethetropics

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #25 on: December 14, 2008, 03:20:53 pm »
Waveney, I wonder if it would be interesting to do some statistical analysis on possible/probable 'proto-spirals' among the irregulars.

I'm sorry, what's a proto-spiral?   ???

 *and find lots of asteroids  ;D

waveney

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #26 on: December 14, 2008, 03:35:49 pm »
Proto-spiral a galaxy that is developing a spiral form.

Current list of questions (Some of which might not be answerable with that data we are getting or could get)

What is the luminosity of nearby irregulars?
How many at depth of z
Colour against properties
Steady progression to spirals
Those that don’t fit that progression
Star forming rates, older populations
Proximity to other galaxies
How do irregulars form (including left over from mergers, shock wave in IGM, other)
Are there old irregulars
Are there red irregulars
Irregulars and dust
Sizes of irregulars
Spatial location of irregulars
Unusual shapes – causes?
Are they in clusters?

Anybody care to add more...
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Thomas J

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #27 on: December 14, 2008, 03:41:03 pm »
Waveney, I wonder if it would be interesting to do some statistical analysis on possible/probable 'proto-spirals' among the irregulars.

Definitely - it's on my list of questions...   You should be able to extract useful data from the classification to do that.



Excellent. :)
I am very interested in the Universe- I am specialising in the Universe and all that surrounds it.....            Peter Cook.


Alice

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #28 on: December 14, 2008, 03:51:40 pm »
Size of irregulars? I seem to remember that spiral galaxies tend to be one specific size, while ellipticals can be much larger or smaller than that. Do they form spirals?

If they have a core do they usually have spiral arms too? Correlations of the features against each other. (x% of those that have this, also have this, etc.)

Proximity of nearby galaxies. Do irregulars form in clusters when there aren't nearby galaxies? Do nearby galaxies take the available gas and discourage formation of more irregulars? Or do nearby galaxies tend to have a lot of irregulars surrounding them?

Blackprojects

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Re: Do It Ourselves Science - The Irregulars Project
« Reply #29 on: December 14, 2008, 04:04:12 pm »
Well I have been Clicking away today just not as much as when I started Clicking on ZOO 1.

Methinks ile keep doing this as ZOO 2 gives me a head Ache for some reason along with Searching for Void Galaxies for Thomas. ;D