Space Warps Talk

Have you just started modelling and need some help or advice???

  • Capella05 by Capella05 moderator

    No Worries - you have come to the right place 😃

    If you just want some advice, or a chat - please post below!

    Just include the Model in the post along with any queries / questions, and one (if not all!) of us will answer you. Or if you just want a chat with fellow modelers, just say 'Hello' 😃

    Also, Watch This

    Capella.

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  • eCid by eCid

    I started some months ago, but still haven't found the combination of keys to zoom in to a particular page.

    How?

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  • Star_hunter_1 by Star_hunter_1

    Hi Ty for the advice and attempted to remodel ASW00073oo with new model of the assumed lens.New Model http://mite.physik.uzh.ch/data/008597 I have watched the Video a couple times and will need to watch it some more for a better understanding, I also have a Question regarding this attempt on Model http://mite.physik.uzh.ch/data/008598 Does the outer circle need to remain within the Picture under these circumstances

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  • ElisabethB by ElisabethB moderator

    Hi Star hunter 1

    Regarding http://mite.physik.uzh.ch/data/008598 : No it is not necessary to have the outer spaghetti remain within the picture. But that said : this one is very difficult to model because you cannot see the whole system.

    As for : http://mite.physik.uzh.ch/data/008597 : I'd try to make the arc smaller. Perhaps adding in two minima (click on the minimum to create a saddlepoint) and see what that gives. I'm trying it out at the moment, but theSpagLens has been running for 750 secs and counting. I'll try again later ! 😄

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  • Capella05 by Capella05 moderator in response to Star hunter 1's comment.

    Hi again Star hunter,

    I do like your improvements to ASW00073oo - the brighter part of the arc in the Synthetic image seems to mimic what we see when we view the Spacewarps image. As Els suggested, the next step to try to improve the model will be to add 2 minima (click on the light blue dot), and then rearrange the spaghetti to follow the Arc contours.

    As for http://mite.physik.uzh.ch/data/008597 - It will impossible to create an accurate model until we can see the entire lensing system. The full picture will turn up in another image 😃

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  • Capella05 by Capella05 moderator in response to eCid's comment.

    Hi eCid,

    Are you talking about Spacewarps or SpaghettiLens?

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  • Star_hunter_1 by Star_hunter_1 in response to Capella05's comment.

    Hi Capella05 I Have attempted to remodel ASW00073oo with 2 minima http://mite.physik.uzh.ch/data/008768

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  • Capella05 by Capella05 moderator in response to Star hunter 1's comment.

    The contour map and mass distribution looks a bit degraded. I would try moving the right minima in towards the green saddlepoint and regenerate.

    Also try to arrange the spaghetti so it mimics the arc. Since the tutorial was made, SpaghettiLens has gone through some changes, so this is more important now!

    Also we should try and find the counter image - it will make it easier to place the top saddlepoint. I am off to work, so I will have a look tonight 😃

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  • Capella05 by Capella05 moderator in response to Star hunter 1's comment.

    Hello again Star hunter,

    I have been searching for the counter image, and the only vague blueness I have been able to detect is in the 10:30 position of the galaxy.

    After you have tried the previous suggestion, I would suggest moving the top saddle point to the 10:30 and remodeling.

    I will be honest 😄 I have tried to improve on your original model, with some pretty drastic changes - with no joy. Starting to think this could be an imposter 😃

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  • Star_hunter_1 by Star_hunter_1 in response to Capella05's comment.

    Hi this is a lot harder than i thought,wish i had a image like the video lol. I have noticed how important it is for correct placement as i have tried a lot of times and coming up with different outcome every time. latest try http://mite.physik.uzh.ch/data/008856 Could you please show me how this should be modeled if i have gone off track.All though this maybe no lens this has become a great learning experience thankyou.

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  • psaha by psaha scientist

    This is a certainly a hard one, since we're guessing about the position of the image, and even the arc isn't super clear. Still, the bleeding edge is where the best research happens!

    Tried this modification putting the counter-image more or less opposite the arc.

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  • Star_hunter_1 by Star_hunter_1 in response to psaha's comment.

    Nice Thankyou

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  • Capella05 by Capella05 moderator in response to Star hunter 1's comment.

    If you want to try modelling more objects - we are more than happy to help you!
    It gets easier the more you model 😃

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  • Star_hunter_1 by Star_hunter_1 in response to Capella05's comment.

    Thankyou i have got a few i have been following that look ok

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  • Capella05 by Capella05 moderator in response to Star hunter 1's comment.

    Excellent - cant wait to see them 😃

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  • Capella05 by Capella05 moderator

    Does anyone else have any modelling queries? We don't bite - I promise!

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  • Star_hunter_1 by Star_hunter_1

    Hi i thought it was about time i posted another Model to see if i'am improving http://mite.physik.uzh.ch/data/010571
    Also another which i have found very hard to model http://mite.physik.uzh.ch/data/010787 also have remodeled it here http://mite.physik.uzh.ch/data/010880

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  • ElisabethB by ElisabethB moderator in response to Star hunter 1's comment.

    Hi Star hunter 1,

    The first one doesn't look bad at all ! I'd try and make the arc smaller, so it would match the acr in the visual more.

    For the second one I'd use the blue arc at 1-2 as the primary arc. I've been trying it out myself and it is not an easy one ! 😄

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  • Star_hunter_1 by Star_hunter_1 in response to ElisabethB's comment.

    Hi ElizabethB thankyou for your advice i have had another go at ASW00069pk will try again when i can find more time hopefully in few days http://mite.physik.uzh.ch/data/011085

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