File:Baffled LIGO Scientists.jpg
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DescriptionBaffled LIGO Scientists.jpg |
English: My name is Nutsinee Kijbunchoo and I'm a physics PhD student based at the National Australian University, Canberra, Australia. My advisor sent me to LIGO Hanford, one of the two U.S. based gravitational-wave detectors located in the middle of Washington desert to help out with the squeezed light commission and upgrade during the third observing run break (it means we stopped listening to black hole and neutron star collisions). On a rare day that I didn't have to work at my own corner, I followed Georgia Mansell (MIT postdoc) and Jason Oberling (site detector engineer) into the Pre-Stabilized Laser (PSL) enclosure. Inside the PSL is where the laser that uses to detect gravitational waves generates. It is literally where it all begins. The system is capable of outputting 70-80 W of laser power so the room needs to be clean as dust and bugs can cause damage to the coatings. While I was watching Georgia and Jason work I snapped this photo as the two were baffled by the low amount of light coupling into the new fiber coupler they just installed. Just like all equipment, LIGO too needs to be maintained constantly.
Español: Dos científicos dentro del recinto de láser preestabilizado de LIGO, preguntándose qué salió mal.
Українська: Двоє вчених всередині корпусу попередньо стабілізованого лазера LIGO виявляють проблему дослідження. США. |
Date | |
Source | Own work |
Author | Nkij |
This image was uploaded as part of Wiki Science Competition 2019. |
Assessment[edit]
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This image was selected as picture of the day on Wikimedia Commons for 30 June 2022. It was captioned as follows: English: Two scientists inside LIGO Pre-Stabilized Laser enclosure, wondering what went wrong. Other languages:
Čeština: Dva vědečtí technici uvnitř detektoru interferometru LIGO (Laser Interferometer Gravitational-Wave Observatory) se zabývají problémy se správnou funkcí tohoto zařízení. Deutsch: Zwei Wissenschaftler betrachten den nicht funktionierenden Laser des laserbasierten Observatoriums zum Nachweis der Gravitationswellen. English: Two scientists inside LIGO Pre-Stabilized Laser enclosure, wondering what went wrong. Español: Dos científicos dentro del recinto de láser preestabilizado de LIGO, preguntándose qué salió mal. Français : Deux scientifiques en combinaison à l'intérieur du Laser Interferometer Gravitational-Wave Observatory (LIGO), une expérience de physique dont le but est de détecter directement les ondes gravitationnelles. Italiano: Due scienziati del LIGO, nella camera del laser pre-stabilizzato, cercano di capire il motivo del malfunzionamento dello strumento. Magyar: Két tudós a LIGO előstabilizált lézerházában, azon tűnődve, mi romlott el Português: Dois cientistas dentro do recinto de laser pré-estabilizado do LIGO, imaginando o que deu errado. Македонски: Научници како решаваат проблем во опсеваторијата за гравитациски бранови LIGO. Українська: Двоє вчених всередині корпусу попередньо стабілізованого лазера LIGO виявляють проблему дослідження. США. |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:48, 2 December 2019 | 6,000 × 4,000 (11.21 MB) | Nkij (talk | contribs) | User created page with UploadWizard |
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Camera manufacturer | SONY |
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Camera model | ILCE-7M3 |
Exposure time | 1/320 sec (0.003125) |
F-number | f/2.8 |
ISO speed rating | 500 |
Date and time of data generation | 05:34, 5 October 2019 |
Lens focal length | 53 mm |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Adobe Photoshop Lightroom Classic 8.4.1 (Macintosh) |
File change date and time | 23:44, 5 October 2019 |
Exposure Program | Aperture priority |
Exif version | 2.31 |
Date and time of digitizing | 05:34, 5 October 2019 |
APEX shutter speed | 8.321928 |
APEX aperture | 2.970854 |
APEX brightness | 5.48203125 |
APEX exposure bias | 1 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
Focal plane X resolution | 1,677.41796875 |
Focal plane Y resolution | 1,677.41796875 |
Focal plane resolution unit | 3 |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 53 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Lens used | E 28-75mm F2.8-2.8 |
Rating (out of 5) | 5 |
Date metadata was last modified | 16:44, 5 October 2019 |
Unique ID of original document | FF3F6735CF0378A2B507EF74A7E2830C |
IIM version | 4 |
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5 October 2019
0.003125 second
2.8
53 millimetre
500
image/jpeg
848d03eff611ba1a54479b8e78041d407b099a40
11,757,543 byte
4,000 pixel
6,000 pixel
- Images from Wiki Science Competition 2019 in the United States
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- Taken with Sony ILCE-7M3
- United States photographs taken on 2019-10-05