Results 41 to 50 of about 9,040,613 (195)

Extraterrestrial Influences on Remote Sensing in the Earth’s Atmosphere

Remote Sensing, 2021
Atmospheric properties have a significant influence on electromagnetic (EM) waves, including the propagation of EM signals used for remote sensing.
Aleksandra Nina, Milan Radovanović, Luka Popović   +2 more
doaj   +1 more source

Observations of Early Optical Afterglows [PDF]

, 2006
The Swift Ultra-Violet/Optical Telescope (UVOT) has performed extensive follow-up on 71 Swift Burst Alert Telescope triggered gamma-ray bursts (GRBs) in its first ten months of operations.
Mason, Keith O., Roming, Peter W. A.
core   +2 more sources

Expanding Aquatic Observations through Recreation

Frontiers in Marine Science, 2017
Accurate observations of the Earth system are required to understand how our planet is changing and to help manage its resources. The aquatic environment—including lakes, rivers, wetlands, estuaries, coastal and open oceans—is a fundamental component of ...
Robert J. W. Brewin, Robert J. W. Brewin, Kieran Hyder, Andreas J. Andersson, Oliver Billson, Oliver Billson, Philip J. Bresnahan, Thomas G. Brewin, Tyler Cyronak, Giorgio Dall'Olmo, Giorgio Dall'Olmo, Lee de Mora, George Graham, Thomas Jackson, Dionysios E. Raitsos, Dionysios E. Raitsos   +15 more
doaj   +1 more source

Photometric Variability in Earthshine Observations

, 2009
The identification of an extrasolar planet as Earth-like will depend on the detection of atmospheric signatures or surface non-uniformities. In this paper we present spatially unresolved flux light curves of Earth for the purpose of studying a prototype ...
Arnold L., Edwin L. Turner, J. Stuart B. Wyithe, Pallé E., Qui J., Sally V. Langford   +5 more
core   +1 more source

Sparsity considerations for dependent observations [PDF]

, 2011
The aim of this paper is to provide a comprehensive introduction for the study of L1-penalized estimators in the context of dependent observations. We define a general $\ell_{1}$-penalized estimator for solving problems of stochastic optimization.
Alquier, Pierre, Doukhan, Paul
core   +5 more sources

MERLIN observations of Stephan's Quintet

, 2002
We present MERLIN L-band images of the compact galaxy group, Stephan's Quintet. The Seyfert 2 galaxy, NGC 7319, the brightest member of the compact group, is seen to have a triple radio structure typical of many extra-galactic radio sources which have a ...
Garrington, S. T., Muxlow, T. W. B., Thomasson, P., Xanthopoulos, E.   +3 more
core   +2 more sources

Chandra observations of Cygnus OB2 [PDF]

, 2011
Cygnus OB2 is the nearest example of a massive star forming region, containing over 50 O-type stars and hundreds of B-type stars. We have analyzed two Chandra pointings in Cyg OB2, detecting ~1700 X-ray sources, of which ~1450 are thought to be members ...
D Kiminki, F Comeron, J Drew, J.F. Albacete Colombo, JE Drew, L Siess, LA Hillenbrand, M Hanson, MF Skrutski, MR Meyer, N Wright, NJ Wright, P Kroupa, P Massey, PW Lucas, SJ Kenyon   +15 more
core   +2 more sources

Observing the Observers

, 2020
In this chapter, I reflect on the origins of the Observing Teachers project. I make links to two facets of observer dependence: the dependence of the origins and conduct of the project on the researchers who originated and conducted it; and the methods we adopted and adapted to allow us to position the teachers as observers in the research.
Ryan Felton, Thomas Fauchez
openaire   +2 more sources

Preparation for the Solar system observations with Herschel: Simulation of Jupiter observations with PACS

, 2010
Observations of the water inventory as well as other chemically important species on Jupiter will be performed in the frame of the guaranteed time key project of the Herschel Space Observatory entitled "Water and related chemistry in the Solar system ...
Arno de Lange, Barshay, Bergin, Borysow, Borysow, Bézard, Cavalié, Connerney, Feuchtgruber, Feuchtgruber, Fletcher, Fletcher, Fouchet, Griffith, Hartogh, Hersant, Hideo Sagawa, Irwin, Jacquinet-Husson, Lellouch, Lellouch, Lellouch, Lindal, Miriam Rengel, Moreno, Moses, Müller, Niemann, Nixon, Owen, Paul Hartogh, Rothman, Seiff, Thibault Cavalié, Urban, Wong   +35 more
core   +3 more sources

Chandra observations of Abell 2199 [PDF]

, 2002
We present results from an analysis of two Chandra observations of the rich, nearby galaxy cluster Abell 2199. We find evidence (having corrected for projection effects) for radial gradients in temperature and metallicity in the X-ray emitting gas: the ...
A. C. Fabian, Allen, Allen, Anders, Arnaud, Burns, Carter, Di Matteo, Dickey, Dupke, Edge, Ettori, Fabian, Fabian, Fabian, Fabian, Fabian, Fabian, Fabian, Ge, Giovannini, J. S. Sanders, Kaastra, Kaastra, Kelson, Liedahl, McNamara, Moore, Morris, Navarro, Owen, Peres, Peterson, Protassov, R. M. Johnstone, S. W. Allen, Sanders, Sanders, Schmidt, Tamura   +39 more
core   +2 more sources