Results 31 to 40 of about 348,356 (178)

The NASA Astrophysics Data System: Free Access to the Astronomical Literature On-Line and through Email [PDF]

, 2001
The Astrophysics Data System (ADS) provides access to the astronomical literature through the World Wide Web. It is a NASA funded project and access to all the ADS services is free to everybody world-wide.
Kurtz, Michael J., Eichhorn, Guenther, Grant, Carolyn S., Accomazzi, Alberto, Murray, Stephen S.   +4 more
core   +1 more source

Determination of Earth's Static Gravity Field Using Quantum Gravity Satellites at Very Low Earth Orbit

Earth and Space Science, Volume 13, Issue 10, October 2026.
Abstract Very Low Earth Orbit (VLEO) satellite platforms and quantum‐optical sensing technologies may provide new observation approaches for improving Earth's static gravity field models. This study conceptually assesses their potential contribution through a two‐tier closed‐loop simulation framework.
Wenming Chen, Hao Zhou, Yanbin Zhao, Zhu Zhu, Shuyun Zheng, Zhicai Luo, Zebing Zhou   +6 more
wiley   +1 more source

Astronomical interferometry using continuous variable quantum teleportation

Physical Review Research
We propose a method to build an astronomical interferometer using continuous-variable quantum teleportation to overcome transmission loss between distant telescopes.
Yunkai Wang, Yujie Zhang, Virginia O. Lorenz   +2 more
doaj   +1 more source

2-dimensional in-plane displacement measurement system at fast sampling rate of 5 kHz using sinusoidal phase modulation interferometer

Journal of the European Optical Society-Rapid Publications
Dynamic and high-resolution air fluctuation (wavefront aberration) measurements are necessary for precision interferometry and astronomical observations.
Higuchi Masato, Sato Taku, Aketagawa Masato   +2 more
doaj   +1 more source

From Surface to Depth: SWOT Altimetry and Glider Observations of a Cuddy in the Northeast Pacific

Journal of Geophysical Research: Oceans, Volume 131, Issue 10, October 2026.
Abstract California Undercurrent Eddies (Cuddies) transport heat, salt, and biogeochemical properties from coastal regions to the open Northeast Pacific, but their three‐dimensional structure, lateral exchange mechanisms and complete life‐cycle are still not fully understood.
Giuliana Berden, Jody M. Klymak, Tetjana Ross, Guoqi Han, Lauryn Talbot   +4 more
wiley   +1 more source

Conceptual Design of a Dispersion Interferometer Using a Ratio of Modulation Amplitudes [PDF]

, 2010
Since a dispersion interferometer is free from mechanical vibrations, it does not need a vibration compensation system even for a probe beam with a short wavelength.
OKAJIMA, Shigeki, KAWAHATA, Kazuo, Tsuyoshi AKIYAMA, Kazuo KAWAHATA, NAKAYAMA, Kazuya, AKIYAMA, Tsuyoshi, Kazuya NAKAYAMA, Shigeki OKAJIMA   +7 more
core   +1 more source

The need for ultra high resolution X-ray imaging

Frontiers in Astronomy and Space Sciences
This paper discusses the broad science case for obtaining milliarcsecond to microarcsecond astronomical imaging resolution in the soft to medium-energy X-ray band (∼0.5 to ∼8 keV).
Kimberly A. Weaver, Jenna M. Cann, Jenna M. Cann, Jenna M. Cann, Ryan Pfeifle, Ryan Pfeifle, Ryan Pfeifle, Miranda McCarthy, Miranda McCarthy, Laura D. Vega, Laura D. Vega, Laura D. Vega, Ronald S. Gamble, Ronald S. Gamble, Ronald S. Gamble, Teresa Monsue, Teresa Monsue, Teresa Monsue, Kyla Mullaney, Kyla Mullaney, Kyla Mullaney, Mainak Singha, Mainak Singha, Mainak Singha, Erini Lambrides, Erini Lambrides, Erini Lambrides, Jeffrey McKaig, Jeffrey McKaig, Isabella Carlton, Kelly Whalen, Kelly Whalen, Emma Kleiner, Atul Mohan, Atul Mohan, Subhajeet Karmakar, Subhajeet Karmakar, Ann E. Hornschemeier, Herbert Ortiz, Claudio Ricci, Claudio Ricci, Claudio Ricci, Lynne Valencic, Lynne Valencic, Brandon Coleman, Brandon Coleman, Kaylee DeGennaro, Ruchi Pandey, Ruchi Pandey   +48 more
doaj   +1 more source

Spherical lamellar grating interferometer for airborne astronomical observations of far infrared objects [PDF]

Applied Optics, 1977
A lamellar grating has been developed to be used for very far ir observations on the Gerard P. Kuiper Airborne Observatory. The design characteristics and performance during laboratory testing and initial observations of Jupiter at wavelengths between 50 microm and 500 microm are presented.
J L, Pipher, M P, Savedoff, J G, Duthie
openaire   +2 more sources

Elastic Properties of Titan Tholins Revealed by Brillouin Spectroscopy

Journal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract Titan tholins, complex organic solids synthesized by simulating photochemical processes in Titan's atmosphere, are widely regarded as analogs to organic surface materials on the Saturnian moon. Their mechanical properties are critical for understanding the evolution of Titan's geomorphology and crustal layering.
Mark A. Johnson, Jose R. Montes‐Bojorquez, Adis Husić, Xinting Yu, Wenhao Su, Jia‐Sen Hu, Ryan Blase, Edward Patrick, Alan Whittington, Jin S. Zhang   +9 more
wiley   +1 more source

Ground-Based Doppler Asymmetric Spatial Heterodyne Interferometer: Instrument Performance and Thermospheric Wind Observations

Remote Sensing
The thermosphere serves as a pivotal region for Sun–Earth interactions, and thermospheric winds are of great scientific importance for deepening insights into atmospheric dynamics, climate formation mechanisms, and space environment evolution. This study
Zhenqing Wen, Di Fu, Guangyi Zhu, Dexin Ren, Xiongbo Hao, Hengxiang Zhao, Jiuhou Lei, Yajun Zhu, Yutao Feng   +8 more
doaj   +1 more source