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Thanks @john.phil and @Ann K for fixing the citing in my post. I should have included a direct link to the video like john, but I forgot to source it all (thanks to Ann for pointing that out!). I rate my source citing as 0/10. Worst. Citing... -
MonkeeSage reacted to HoaxEye's post in the thread Transients in the Palomar Observatory Sky Survey with
Like.
I picked them because I had a corresponding tile downloaded. I checked how many matches that tile remainder had with MNRAS 2022 final R. It was zero so I had to check if I made a mistake. Manual screening, using just source extractor pass 2... -
MonkeeSage reacted to Ivo Busko's post in the thread Transients in the Palomar Observatory Sky Survey with
Informative.
They *are* routinely detected by large survey telescopes, to this day. And automatically thrown out as space junk. That's why it is important (from my viewpoint) to study them. If nothing else, they have to be removed so the actual astronomical... -
MonkeeSage reacted to Ivo Busko's post in the thread Transients in the Palomar Observatory Sky Survey with Informative.
As far as I know, they *are* being detected. They are just throw away by the automatic data processing pipelines, or by the astronomers themselves, as the standard explanation for them is space junk. Modern survey observatories like Rubin and...
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MonkeeSage reacted to HoaxEye's post in the thread Transients in the Palomar Observatory Sky Survey with Like.
Catalog matching was done. That can be tested: three MNRAS 2022 datasets are published here: http://svocats.cab.inta-csic.es/vanish/ Select the list of vanishing objects in POSS I red images (5,399 rows) and perform a cross-match against Gaia and...
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MonkeeSage reacted to Ivo Busko's post in the thread Transients in the Palomar Observatory Sky Survey with Like.
I understand the Palomar plates aren't available because of policy issues. They are seen as irreplaceable assets. The Applause plates might be available for physical inspection though.
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MonkeeSage reacted to Ivo Busko's post in the thread Transients in the Palomar Observatory Sky Survey with Like.
You are right that "stars do not have PSFs", in the sense that starlight gets first smeared by the atmosphere, and only then goes thru the telescope optics and is affected by the PSF. Because atmospheric smearing is orders of magnitude larger...
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MonkeeSage reacted to Ivo Busko's post in the thread Transients in the Palomar Observatory Sky Survey with Like.
So far, I have found 63 candidate transients, out of 50 plates analyzed. Many more are still being worked on, and I don't expect to have a comprehensive data set and analysis for a long time still. As for that one pic, it is for illustration...
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MonkeeSage reacted to Mendel's post in the thread Transients in the Palomar Observatory Sky Survey with Like.
See Solano(2022). https://academic.oup.com/mnras/article/515/1/1380/6607509?login=false This is explained upthread. Vilarroel references that paper, but it's unclear which of the steps have been applied to her data set, since it doesn't match...
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Gary C reacted to Todd Feinman's post in the thread Claim: Giza Plateau: discovery of a huge city under the Pyramids with
Funny.
The worst part of exploring the underground city will be the shoggoths… :eek: -
Gary C reacted to Matt33's post in the thread Claim: Giza Plateau: discovery of a huge city under the Pyramids with
Winner.
Biondi now found a second Sphynx. His idea is that there is some kind of symmetry on the Giza plateau, which would have another Sphynx at a certain location. And indeed exactly there is an elongated elevation. He scanned the area and came to the... -
MonkeeSage reacted to flarkey's post in the thread Transients in the Palomar Observatory Sky Survey with Like.
This is what I'm trying to work out - where and when is this validation process done, and by whom? Edit - i think maybe here: https://arxiv.org/pdf/2009.10813 Launching the VASCO Citizen Science Project
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Gary C reacted to RTM's post in the thread Has Something Changed in the Near-Earth Meteoroid Environment? (American Meteor Society analysis) with Like.
Anecdote alert, I’ve seem two fire balls recently in the East Bay area of California. I walk my dog most nights and usually keep an eye on the sky, about a couple weeks ago ( can’t remember exact date and time) I saw something streak for a few...
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MonkeeSage reacted to Mendel's post in the thread Transients in the Palomar Observatory Sky Survey with Like.
It wasn't. Villarroel's own data with regard to plate edges strongly suggest that the flaws/"transients" are more dense near the plate edges, though depending on the algorithm, this may be exacerbated by plate overlap. Remember, the graphs of the...
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MonkeeSage reacted to Ivo Busko's post in the thread Transients in the Palomar Observatory Sky Survey with Like.
Hi, I'm Ivo Busko, the author of that preprint. I see so many comments in here, that I can't possibly address everyone. Please feel free to respond to this post in case you have comments or questions, I will do my best to answer. And thanks for...
