Results 51 to 60 of about 794 (193)

Investigating Asymmetry Development from SiO to H2O Maser Regions in VX Sagittarii

The Astronomical Journal
Simultaneous very-long-baseline interferometry monitoring observations of H _2 O and SiO masers toward VX Sagittarii were conducted from 2014 February to 2019 January.
Dong-Hwan Yoon, Se-Hyung Cho, Youngjoo Yun, Haneul Yang, Jaeheon Kim   +4 more
doaj   +1 more source

Using multilayer socioecological networks to assess ecosystem service flow in a subsistence farming community in Papua New Guinea

People and Nature, Volume 8, Issue 4, Page 854-870, April 2026.
Abstract Ecosystem services are rapidly degrading under anthropogenic pressure. Therefore, it is increasingly important to understand how ecosystem services flow, particularly at local scales, where people directly rely on nature for their livelihoods and well‐being. Many ecosystem services are underpinned by ecological (e.g.
Anna Stanworth, Kiole Imale, Brus Isua, Anne M. Anji, Francesca F. Dem, Vojtech Novotný, Harry E. R. Shepherd, Kelvin S.‐H. Peh, Rebecca J. Morris   +8 more
wiley   +1 more source

Frequency Extensions of Auroral Kilometric Radiation: The Key to Unlocking Earth's Radio Response to Substorms

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Auroral kilometric radiation (AKR) provides a sensitive probe of magnetospheric dynamics during substorms. We analyze an extended data set of AKR bursts observed by the WIND spacecraft to investigate how the frequency structure of AKR responds to substorm onset and evolution.
Simon James Walker, Caitríona M. Jackman, Alexandra R. Fogg, Siyuan Wu, James E. Waters   +4 more
wiley   +1 more source

Submillimetre water masers at 437, 439, 471, and 474 GHz towards evolved stars

, 2020
Aims. Here we aim to characterise submillimetre water masers at 437, 439, 471, and 474 GHz towards a sample of evolved stars. Methods. We used the Atacama Pathfinder Experiment (APEX1) to observe submillimetre water transitions and the CO (4–3) line ...
P. Bergman, Humphreys, E. M. L., E. M. L. Humphreys, Bergman, Per, Bergman, Per,, Humphreys, E. M. L.,   +5 more
core   +1 more source

Astronomical Masers: Polarization Properties Of 22-ghz Water And 6.7-ghz Methanol Masers. [PDF]

, 2014
By observing the astronomical masers in the Milky Way we can determine for instance high-accurate distances of the hosting Galactic sources (e.g., Galactic star-forming regions) and the kinematic of the gas where the masers arise (e.g., the kinematic of ...
Surcis, Gabriele
core   +1 more source

Water and silicon-monoxide masers monitored towards the water fountain sources

, 2021
We have investigated the evolution of 12 water fountain sources in real time in the accompanying H2O 2o and SiO masers through our FLASHING (Finest Legacy Acquisitions of SiO-/ H2O 2o-maser Ignitions by Nobeyama Generation) project. It has been confirmed
Uscanga, L., Tafoya, Daniel, Amada, Kei, Burns, R. A., Shum, K. Y., Imai, H., Hamae, Yuhki, Gomez, J. F., Nakashima, K., Orosz, G.   +9 more
core   +1 more source

Comparing image quality of synchrotron and laboratory nano‐CT scans: a round robin study

Journal of Synchrotron Radiation, Volume 33, Issue 2, Page 489-507, March 2026.
A multi‐facility round‐robin comparison of synchrotron‐ and laboratory‐based nano‐computed tomography using a standardized 3D phantom reveals superior resolution and acquisition speed at synchrotrons, while advanced laboratory systems achieve competitive image quality with extended scan times; phase contrast modalities further enhance structural ...
Simon Wittl, Simon Zabler, Jonas Fell, Julie Villanova, Pierre Lhuissier, Stefanie Hildebrandt, Hans-Georg Herrmann   +6 more
wiley   +1 more source

Effects of Fruiting Neighborhood, Plant Traits, and Fruit Traits on Frugivore Visitation and Fruit Removal for an Understory Palm

Biotropica, Volume 58, Issue 2, March 2026.
We simultaneously evaluated how the fruiting neighborhood, defined as the number of fruiting palms in a 35 m radius, and relevant traits at the level of individual plants (e.g., height, crop size) and fruits (e.g., fruit and seed size, water, and sucrose content) influenced frugivore visitation and the number of fruits removed per visit in a common ...
Callie Rose Chenevert, Therese Lamperty, Domingo Cabrera, Jordan Karubian   +3 more
wiley   +1 more source

The extraordinary outburst in the massive protostellar system NGC6334I-MM1 : flaring of the water masers in a north-south bipolar outflow driven by MM1B [PDF]

, 2018
C.J. Cyganowski acknowledges support from the STFC (grant number ST/M001296/1).We compare multi-epoch sub-arcsecond VLA imaging of the 22 GHz water masers toward the massive protocluster NGC6334I observed before and after the recent outburst of MM1B in ...
Hunter, T. R., Chibueze, J. O., Sobolev, A. M., Brogan, C. L., Friesen, R. K., Hirota, T., MacLeod, G. C., McGuire, B. A., Cyganowski, C. J.   +8 more
core   +2 more sources

An Updated Model for the Perseus Spiral Arm from Trigonometric Parallax and 3D Kinematic Distances of Distant Massive Stars

The Astrophysical Journal
We report trigonometric parallaxes and proper motions for three water masers and one methanol maser obtained with the Very Long Baseline Array as part of the Bar and Spiral Structure Legacy Survey.
L. J. Hyland, M. J. Reid, S. P. Ellingsen, A. Brunthaler, X. W. Zheng, K. M. Menten   +5 more
doaj   +1 more source