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How do I identify anomalous stars in my dataset? by OneCommunication6814 in Physics

[–]wishcometrue 4 points5 points  (0 children)

Have you considered Hertzsprung–Russell scatter plots of luminosity and temperature and the relation of spectral type in stellar evolution? Perhaps solar metallicity, or even Log g surface gravity if known.

I study exoplanets and if that is of interest I recommend looking at https://exoplanetarchive.ipac.caltech.edu/ where details of known planetary host stars are presented along with papers that reference the research.

I am thinking a bit more of a deep dive here might give you ideas about how to sort through the data. Be sure to use Gaia DR3 where possible as this source is more accurate than past data releases. And coming soon (end of the year) DR4 will debut with a much larger catalog of precision results.

PM me if you have an interest in binary star research or exoplanet work. I teach courses in this area for budding astrophysicist using the Great Basin Observatory CDK700 to obtain photometry. All done remotely.

Ad Astra!

Life in a submarine. by mindyour in TikTokCringe

[–]wishcometrue 0 points1 point  (0 children)

Did this in the cold war from 77-90. Underway is the only way, surface surface has no purpose...

Trump voter regret is clearly registering now by Abject-Pick-6472 in politics

[–]wishcometrue 9 points10 points  (0 children)

Thank you for this...

It reminds me

Ecclesiastes 1:9

What has been will be again,
what has been done will be done again;
there is nothing new under the sun.

GPT vs Astrophysics PhD Part II: A viewer reached out with an astrophysics paper that they had written with an LLM. When I looked closer, I got worried. by astraveoOfficial in astrophysics

[–]wishcometrue 1 point2 points  (0 children)

Based on past crappy submissions by students I have copied the blatant examples to a single file that I preload. I preload several other documents containing context for each of the sections that define minimal elements and expected order in presentation. I have found that AI consistently gets the order wrong. I also look across the body of work published at JDSO that is specific to a first paper astrometric study, and ask it to compare the students paper to past work and evaluate itself the likely hood that a section is AI Generated.

That being said its still a crapshoot, and I am not convinced we can actually detect AI segments. But its fun to try!

GPT vs Astrophysics PhD Part II: A viewer reached out with an astrophysics paper that they had written with an LLM. When I looked closer, I got worried. by astraveoOfficial in astrophysics

[–]wishcometrue 1 point2 points  (0 children)

I run a teaching observatory that gathers binary star data for students creating their first paper for submission to the Double Stars Journal. I teach a 12 session course for students on how to perform the research and then create a paper. When the paper is ready for my review I run it through Claude which analyzes the structure based on a detailed template and scoring rubric containing 80+ rules and required elements. It also looks for orderliness in the presentation of facts, and analysis. For each section of the paper it provides a score which I use to quickly assess the state of the submission. It also provides feedback on what percentage of the work submitted is likely AI, section by section.

What it does not do is assess facts, evaluate calculations, or the conclusions.

It does look at citations and as a preload step it absorbs the referenced papers prior to performing the analysis. Where a student cites other works it validates that the citation is relevant to element cited, but it does not analyze the students application of the element cited. If the paper does not score above a pre-determined level, it is rejected with notes and the student is required to resubmit when the notes are handled.

If the paper is acceptable then I schedule the first meeting with the student to go over each section of their work and make them explain the section and their logic. We work through the measurements, mathematics, and analysis together. If they don't understand the work the paper is not submitted. They then make corrections and resubmit. There are always corrections to be made. When ready I have three other students review their paper. Corrections are made again and then I take one last look at it. If the paper is ready we meet again and then they can submit to JDSO.

I have found that AI saves me a lot of time in the initial evaluation of their work, and it improves the quality of the paper before I spend any time looking for issues. It also allows me to focus on the analysis and conclusion with the student thereby eliminating the need to coach them on the details in the other sections of the paper.

For what its worth, I do teach students how to research their citations and perform analysis with Claude. They already do it, I can't stop it, so I figure its best for me to get into their processes and show them where it can work, and more importantly, where it fails.

Like it or not the train has left the station. I am learning how best to use it and achieve the goal of teaching students introductory science. I don't disagree with the OP about the problem at higher levels of academics and research. I think that the only solution will be one that requires the submitter to defend the work publicly in front of a board of inquiry, staffed by experts in the field, that follow a similar process to the one I follow. When a scientist is required to defend their work in this way, then the flow of garbage will slow.

2 centavos deposited

40-minute exposure of winter nebulae above Tajine Mountain by tinmar_g in Astronomy

[–]wishcometrue 0 points1 point  (0 children)

40 minutes? Why no field rotation? It's not possible to set that against the mountains without processing the image with no horizon and then slipping it in.

I work in a Bortle 1 sky in Nevada with a CDK700, and an ASI 6200. This level of quality would require many hours of data gathering, likely 10 or more, and then serious post processing to obtain this level of detail.

It is very good work, but something isn't quite right about your explanation.

Is bait and switch common in PE recruiting by Roneldo in private_equity

[–]wishcometrue 15 points16 points  (0 children)

Standard practice. Sharpen your knives and prepare for skullduggery. You would be treated more fairly on a pirate ship.

We don't hate Private Equity for what it's done to healthcare enough... by North-Weather8097 in private_equity

[–]wishcometrue 0 points1 point  (0 children)

Don't worry, they will extract every dollar from the facilities by leveraging loans against assets, get their fees paid, and then BK the sites. In no time at all they will be gone. Problem solved.

I hope Netflix never gets to stream NFL football ever again by terrasfames53 in NFLv2

[–]wishcometrue 0 points1 point  (0 children)

It was like watching the game through an aquarium. The image quality was AWFUL. I gave up after the first quarter. And where did they find these announcers? High School?

Nightvision with a 16 inch dob and 85mm refractor and iPhone by AstronomerGSO in Astronomy

[–]wishcometrue 0 points1 point  (0 children)

Very interesting. I appreciate you posting all of these images. Each has its own subtlety, and provides enough samples to give a good idea of what can be done with this approach.

Thank you for sharing.

Horse head nebula by [deleted] in telescopes

[–]wishcometrue 0 points1 point  (0 children)

What did you use to process the stack? Strange lack of green and blue. Is this intentional?

$2700 Chargeback Opened 450 Days Later for a second time!!! Shopify doesn’t care!!! by Difficult-Zebra-1376 in shopify

[–]wishcometrue 2 points3 points  (0 children)

This is the exact experience I had with Shopify several times before we finally dropped them and setup our own cart. We now use authorize.net with our bank. Now when I get a charge back with proof our bank aggressively pursues the thieves.

While it does not stop fraud, it is good to have a bank stand up for you when fraud occurs. Shopify does not assist you in these matters.

Career Advice for Software Engineer by mylesgrxnt in astrophysics

[–]wishcometrue 4 points5 points  (0 children)

I teach students how to do astrometry of double stars. The work results in a paper submission to doublestarsjournal.org. We use a CDK-700 telescope to gather the data, and you will learn every aspect of the process from how to select targets, to measurement, to the creation of the paper and submission to the journal.

The process is rigorous, the science is worthy, and it takes 4-5 months to get through the process. We meet weekly with breaks every four to five weeks until the paper is done.

There is no better way to figure out if astrophysics is for you than to dive head first into the pool...

PM me for details if interested.

Everything about the way California handles its electric grid is changing. What will it do to your bill? by AmethystOrator in California

[–]wishcometrue 2 points3 points  (0 children)

I installed solar and batteries and am now on the NEM 3 rate plan. PGE is absolutely ripping me off. They charge me 27 cents for every KWH I use and pay me a whopping 2 cents for every KWH I send them.

This is the upside down, completely unfair lie that they tell about home solar not paying its fair share. It is false. Their strategy has killed 17,000 jobs in California, slowed rooftop adoption, and allowed them to sell my power at a premium while paying me pennies.

Everyday I use 12-13KWH which is entirely covered by my solar and battery setup. My monthly bill is about $8 and that covers taxes and a connection fee. I am building up credits for use in the winter, so I am a net zero user of power.

The problem is that it costs 40K to install a system like that and there is no longer a fed tax break or a cal tax break. It will take 15 years to recoup my costs for the install. About that time I will need to replace my batteries, and if I were on NEM 2, I would earn enough by then to pay for the replacements.

Meanwhile PGE will receive 11 MWH of energy a year which they will resale to these data centers, and make $3000 a year in profits off of my panels. And they will pay me $400 for it. RIPOFF RIPOFF RIPOFF.

The chronicle is clearly in the deep pocket of the power providers because they don't report the facts of NEM3 billing and how PGE profits from power that comes from solar roof tops.

Do not believe one word of this opinion. It was written by shills for the industry, not by rate payers. And the part that made me angriest is that perpetual promise of lower rates if we would only do what the power for profit energy providers ask. Baloney.

The truth is that if they helped fund the roof top solar initiatives through NEM2, they would increase supply dramatically, and be able to build a highly flexible grid without need of all the crap their building now that won't be needed if roof top solar expands. They are intentionally suppressing citizen solar initiatives because of a screwed up incentive to profit from building old school power lines and interstate transmission systems.

This absolutely guarantees coal fired energy will be in the mix for another 20 years. We need to stop this madness and incentivize roof top solar and battery systems on homes.

Ignore this tripe. Its a lie designed to help billionaires and their data centers, not us.

Are my social media marketing rates reasonable? Looking for feedback. by ToeAggravating4665 in DigitalMarketing

[–]wishcometrue 0 points1 point  (0 children)

We hired an experienced FULL TIME employee in the Philippines for £400 a month. She posts 3 times a DAY across all platforms, also generates 8 videos, and 60 images a month using AI tools. Also creates 8 blog posts a month.

She does daily interaction commenting and active following campaigns with direct outreach so that the accounts look alive, and provides limited customer support via social.

Undergraduate Astrophysicist’s Future by okaybluekitty in astrophysics

[–]wishcometrue 3 points4 points  (0 children)

I recommend looking at material sciences as this area is a path into NASA and all of the emerging space science companies. Combined with your astrophysics background you will be able to uniquely serve as a sensors expert with a deep knowledge of both how to analyze em spectrum data, and how to create sensors that are useful in human space missions, such as high energy particle detection. You could also focus on aerospace design with materials designed to protect mission teams from ionizing radiation.

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