🎬 Toller neuer Film 🎞️
Unser Kolleg*innen an der @unihannover haben einen Film über die Forschung in den Bereichen Quantenoptik und Gravitationsphysik produziert. Im Film gibt es inspirierende Bilder aus mehreren unserer Labore.
🎞️ https://www.youtube.com/watch?v=otNPNzYwBpA
🎞️ https://inv.nadeko.net/watch?v=otNPNzYwBpA
Ihr findet beim Video deutsche und englische Untertitel
#Quantenoptik #Gravitationsphysik #Hannover #Forschung #LISA #GRACE #GRACEFollowOn #Gravitationswellen
🎬 Great new film 🎞️
Our @unihannover colleagues have produced a film about quantum optics and gravitational physics research, featuring inspiring pictures from several of our labs.
🎞️ https://www.youtube.com/watch?v=otNPNzYwBpA
🎞️ https://inv.nadeko.net/watch?v=otNPNzYwBpA
German and English subtitles are available.
#QuantumOptics #GravitationalPhysics #Hannover #Research #LISA #GRACE #GRACEFollowOn #GravitationalWaves
🚀 Auf die Minute genau vor sieben Jahren (am 22. Mai 2018 um 21:47 Uhr) hieß es „Liftoff for GRACE Follow-On“. 🚀
Kurze Zeit später erreichte die Klimaforschungsmission aus zwei Satelliten die Erdumlaufbahn. An Bord hat sie ein neuartiges, in Hannover entwickeltes Laser-Interferometer. Es dient dazu, das Erdschwerefeld zu vermessen und so das Abschmelzen der polaren Eismassen und Veränderungen im Grundwasserpegel zu überwachen.
Erste Beobachtungsdaten gab es im Sommer 2018. Seitdem läuft das System zuverlässig und liefert regulär hochpräzise Messungen.
ℹ️ https://www.aei.mpg.de/gracefo
Film: NASA's Jet Propulsion Laboratory (https://gracefo.jpl.nasa.gov/resources/77/grace-fo-launches-aboard-a-spacex-falcon-9/)
#GRACEFollowOn #Satelliten #Laser #Geodäsie #Klimawandel #OTD #ThrowbackThursday
🚀 Exactly seven years ago (on 22 May 2018, at 9:47 p.m. CEST), it was “Liftoff for GRACE Follow-On.” 🚀
Soon afterwards, the satellite geodesy mission consisting of two spacecraft reached its orbit around Earth. On board is a new type of laser interferometer developed in Hanover, Germany. It is used to measure the Earth's gravitational field and monitor the melting of polar ice cap and changes in groundwater levels.
The first observational data were received in the summer of 2018. Since then, the system has been running reliably and delivering high-precision measurements.
ℹ️ https://www.aei.mpg.de/39681/grace-follow-on
Film: NASA's Jet Propulsion Laboratory (https://gracefo.jpl.nasa.gov/resources/77/grace-fo-launches-aboard-a-spacex-falcon-9/)
#GRACEFollowOn #Satellites #Laser #Geodesy #ClimateChange #OTD #ThrowbackThursday
Reshma Krishnan Sudha is a PhD student in the “Space Interferometry” group.
She works on GRACE and its successor GRACE Follow-On (GRACE-FO), two highly successful satellite gravimetry missions for Earth observation. Satellite gravimetry, which involves the measurement of spatial and temporal changes in the gravity field caused by mass variations from space, provides a unique opportunity to study mass transport and improve our understanding of the Earth system. Changes in the mass distribution within and between Earth's atmosphere, oceans, groundwater, and ice sheets serve as fundamental indicators of the large-scale dynamics of the planet.
In GRACE-FO, the Laser Ranging Interferometer was used as a technology demonstrator alongside the established microwave-based ranging measurement. It uses laser interferometry to measure distance variations between satellites with nanometer precision. Reshma's current work lies in the in-flight characterization of the steering mirror, which is an important component in laser link acquisition procedures and also in the correction of spacecraft misalignment. The other focus is on building a breadboard optical bench assembly for optical beat note generation with flight-like beam parameters.
ℹ️ https://www.aei.mpg.de/1110531/reshma-krishnan-sudha
#IDWGS #WomenInSTEM #WomenInScience #Physics #PhD #Space #Geodesy #GRACEFollowOn #Research #Hannover
Sariga Sachit's PhD research in the “Space Interferometry” group focuses on the experimental investigation of various aspects of future laser ranging interferometers on board geodesy satellite missions such as GRACE Follow-On.
After the success of its laser ranging interferometer, the next generations of GRACE-like missions are firmly expected to use laser interferometry as the primary measurement principle. Sariga's project aims at building on the invaluable experience in designing, testing and operating the laser ranging interferometer to further enhance the functionality, performance and reliability of future instruments. She tries to do experimental investigation on link acquisition, auxiliary modulation and absolute ranging that may open new avenues for orbit determination and data processing. She also works on advancements in inter-spacecraft laser interferometry.
ℹ️ https://www.aei.mpg.de/886444/sariga-sachit
#IDWGS #WomenInSTEM #WomenInScience #Physics #PhD #Space #GRACEFollowOn #Geodesy #Research #Hannover
Sariga Sachit's PhD research in the “Space Interferometry” group focuses on the experimental investigation of various aspects of future laser ranging interferometers on board geodesy satellite missions such as GRACE Follow-On.
ℹ️ https://www.aei.mpg.de/886444/sariga-sachit
#IDWGS #WomenInSTEM #WomenInScience #Physics #PhD #Space #GRACEFollowOn #Geodesy #Research #Hannover
Reshma Krishnan Sudha is a PhD student in the “Space Interferometry” group working on a component of the Laser Ranging Interferometer at the heart of geodesy missions such as GRACE Follow-On. These missions allow us to study the Earth's gravitational field from space.
ℹ️ https://www.aei.mpg.de/1110531/reshma-krishnan-sudha
#IDWGS #WomenInSTEM #WomenInScience #Physics #PhD #Space #Geodesy #GRACEFollowOn #Research #Hannover
MPI for Gravitational Physics
AEI has moved
MPI for Gravitational Physics