Hackers' Pub

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`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

Hacker News @hkrn@mstdn.social

9/26/2025, 7:53:30 AM

Public

Can LIGO Detect Daylight Savings Time?
L: https://arxiv.org/abs/2509.11849
C: https://news.ycombinator.com/item?id=45383783
posted on 2025.09.26 at 03:26:28 (c=0, p=4)

Can LIGO Detect Daylight Savings Time?

Yes, it can. Catalogs produced by networks of Gravitational-wave interferometers are subject to complicated selection effects, and the gold-standard remains direct measurements of the detection probability through large injection campaigns. I leverage public data products from the LIGO-Virgo-KAGRA Collaborations' 3rd and 4th observing runs to show that there are non-trivial temporal variations within the detection probability that are well-described by a weekly cycle. There are clear differences between weekends and weekdays, between day and night (at the sites), and even between daylight-savings and standard time. I discuss possible causes for this behavior and implications.

arxiv.org · arXiv.org

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