Jacques Beckers

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Jacques Beckers is affiliated with the following schools: University of California, Berkeley, University of Arizona, Utrecht University

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Jacques Beckers

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According to Wikipedia, Jacques Maurice Beckers was a Dutch-born American astronomer. He was director of the National Solar Observatory between 1993 and 1998. Beckers worked mainly in the field of astrophysics and astronomical optometry.

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Jacques Beckers's Published Works

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Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

ADAPTIVE OPTICS FOR ASTRONOMY: Principles, Performance, and Applications (1993) (495)
Solar spicules (1968) (293)
Increasing the size of the isoplanatic patch with multiconjugate adaptive optics. (1988) (248)
The intensity, velocity and magnetic structure of a sunspot region (1968) (210)
Chromospheric inhomogeneities in sunspot umbrae (1969) (181)
The Solar Chromosphere and Corona: Quiet Sun (1975) (151)
The Ultraviolet Spectrometer and Polarimeter on the Solar Maximum Mission (1980) (142)
Detailed Compensation Of Atmospheric Seeing Using Multiconjugate Adaptive Optics (1989) (106)
Oscillatory motions in sunspots (1972) (101)
Achromatic linear retarders. (1971) (82)
Spectral observations of spicules at two heights in the solar chromosphere (1968) (78)
The profiles of fraunhofer lines in the presence of zeeman splitting (1969) (69)
A high resolution spectral atlas of the solar irradiance from 380 to 700 nanometers (1976) (65)
The profile and polarization of the coronal Lα line (1974) (65)
Some comments on the limb shift of solar lines (1978) (64)
Material motions in sunspot umbrae. (1977) (60)
A Study of the Fine Structures in the Solar Chromosphere (1964) (58)
Multiple mirror telescope as a phased array telescope. (1985) (56)
The intensity, velocity and magnetic structure of a sunspot region (1968) (56)
Differential Speckle Interferometry (1982) (55)
The flux of Alfven waves in sunspots (1976) (54)
The line response function of stellar atmospheres and the effective depth of line formation (1975) (52)
The Euro50 Extremely Large Telescope (2003) (51)
A Seeing Monitor for Solar and Other Extended Object Observations (2001) (51)
High-resolution measurements of photosphere and sunspot velocity and magnetic fields using a narrow-band birefringent filter (1968) (49)
Atmospheric dispersion correction for the FORS Focal Reducers at the ESO VLT (1997) (44)
Vertical gradients of sunspot magnetic fields (1983) (43)
Observations of the longitudinal magnetic field in the transition region and photosphere of a sunspot (1982) (43)
Some comments on the limb shift of solar lines (1980) (36)
The Magnetic Field of the BY Draconis Flare Star EQ Virginis (1986) (36)
Observing the sun with a fully tunable Lyot-Ohman filter. (1975) (35)
Comparative Solar Seeing and Scintillation Studies at the Fuxian Lake Solar Station (2001) (34)
Study of the Undisturbed Chromosphere from Ha-DISK Filtergrams, with Particular Reference to the Indentification of Spicules. (1963) (33)
High resolution spectroscopy of the disk chromosphere (1974) (31)
A table of Zeeman Multiplets (1969) (31)
High resolution spectroscopy of the disk chromosphere (1972) (30)
Solar Site Survey for the Advanced Technology Solar Telescope. I. Analysis of the Seeing Data (2005) (29)
Site testing for the Advanced Technology Solar Telescope (2006) (28)
The interpretation of velocity filtergrams (1970) (28)
Field Of View Considerations For Telescope Arrays (1986) (27)
On the relation between scintillation and seeing observations of extended objects (1993) (26)
Principles of operation of solar magnetographs (1968) (26)
Alfvén waves in the corona above sunspots. (1977) (25)
On the effect of narrow-band filters on the diffraction limited resolution of astronomical telescopes (1998) (23)
The interpretation of velocity filtergrams (1969) (23)
Impact linear polarization observed in a UV chromospheric line during a solar flare (1983) (23)
VLT Interferometer: III. Factors affecting wide field-of-view operation (1990) (23)
Overcoming perspective elongation effects in laser-guide-star-aided adaptive optics. (1992) (21)
Motions in the solar atmosphere (1975) (21)
Interferometric imaging with the Very Large Telescope (1991) (21)
Preliminary observations and results obtained with the ultraviolet spectrometer and polarimeter. [for Solar Maximum Mission] (1981) (21)
Solar Scintillometry: Calibration of Signals and its Use for Seeing Measurements (1997) (21)
The intensity, velocity and magnetic structure of a sunspot region (1969) (21)
Performance Of The Multiple Mirror Telescope (MMT) I. MMT-The First Of The Advanced Technology Telescopes (1982) (20)
The profiles of fraunhofer lines in the presence of Zeeman splitting (1969) (20)
National Optical Astronomy Observatories (NOAO) Infrared Adaptive Optics Program I: General Description (1986) (19)
Photospheric brightness differences associated with the solar supergranulation (1968) (19)
Solar site testing for the Advanced Technology Solar Telescope (2004) (18)
ESO Conference on High-Resolution Imaging by Interferometry II : ground-based interferometry at visible and infrared wavelengths, 15-18 October 1991, Garching bei München, Germany : proceedings (1992) (17)
Adaptive optics for the Euro50: design and performance (2003) (17)
The proposed 50 m Swedish Extremely Large Telescope (2000) (17)
Achromatic linear retarders with increased angular aperture. (1972) (17)
Reliability of sunspots as tracers of solar surface rotation (1976) (16)
Conductive flux in flaring solar chromospheres deduced from the linear polarization observations (1983) (16)
Optical Interferometry With The MMT (1983) (16)
Adaptive optics schemes for future extremely large telescopes (2002) (16)
Using Laser Beacons for Daytime Adaptive Optics (2001) (16)
The interpretation of velocity filtergrams (1969) (14)
ATST seeing monitor: February 2002 observations at Fuxian Lake (2003) (14)
Two-dimensional Images of Alpha Orionis (1986) (14)
The Differential Speckle Interferometer (1984) (14)
Dynamics of the solar photosphere (1981) (13)
Control strategy for the adaptive optics of the Euro50 (2003) (13)
Image Reconstruction Using Adaptive Optics (1988) (13)
The Measurement of Solar Magnetic Fields (1971) (13)
Correlation tracking algorithms for low-contrast extended object (2002) (12)
Is there a solar polar vortex (1978) (11)
Design of a large low-scattered light telescope for solar observations (1998) (11)
Spectroscopy of 33 QSO candidates from the Jodrell Bank 966-MHz survey (1979) (11)
High resolution spectroscopy of the disk chromosphere (1972) (10)
Performance Of The Multiple Mirror Telescope (MMT) VI. MMT Telescope Coalignment System (1982) (10)
On the relation between the photospheric intensity, velocity and magnetic fields (1968) (10)
A Fully Tunable Lyot-Ohman Filter. (1975) (9)
Narrow band filters based on magnetooptical effects. (1970) (9)
A search for deuterium on the sun. (1975) (9)
Rapid refocusing system for the Euro50 telescope aimed at removing the perspective elongation of laser beacons (2003) (9)
Effects of Foreshortening on Shallow Sub-surface Flows Observed with Local Helioseismology (2007) (9)
Imaging with array detectors using chopping and other forms of differential detection (1994) (9)
Polarization Effects In Astronomical Spatial Interferometry (1990) (9)
Adaptive Optics in Astronomy: Adaptive optics in solar astronomy (1999) (9)
A time evolution study of limb spicule spectra (1976) (8)
Sodium beacon wavefront sensing for the Euro50 telescope in the presence of perspective elongation (2004) (8)
Performance Of The Multiple Mirror Telescope (MMT) III. Seeing Experiments With The MMT (1982) (8)
The intensity, velocity and magnetic structure of a sunspot region (1968) (8)
A comparison of spicules in the Hα and HeII (304 Å) lines (1975) (8)
A photoelectric focus and seeing monitor for solar telescopes. (1966) (8)
National Optical Astronomy Observatories (NOAO) IR Adaptive Optics Program III: Criteria For The Wavefront Sensor Selection (1986) (8)
Application Of Adaptive Optics To Astronomy (1989) (7)
Effects of heat sources in the telescope beam on astronomical image quality (1994) (7)
Can variable meridional flows lead to false exoplanet detections (2007) (7)
Interferometry with the Very Large Telescope. (1992) (7)
From Euro50 toward a European ELT (2006) (7)
VLT Interferometer: II. Factors affecting on-axis operation (1990) (7)
Some comments on the limb shift of solar lines (1978) (7)
Differential Speckle Imaging With The Cophased Multiple Mirror Telescope (1985) (7)
Quiet Photosphere and Chromosphere (1977) (7)
Some Thoughts on the Combination of Beams in Interferometers Using Telescopes of Unequal Size (1989) (7)
A photographic polarimeter for solar observations. (1970) (7)
The Design of the Auxiliary Telescopes for the VLT Interferometer (1992) (7)
Very high-resolution spectroscopy for extremely large telescopes using pupil slicing and adaptive optics. (2007) (7)
Multiconjugate adaptive optics: experiments in atmospheric tomography (2000) (7)
"Differential speckle interferometry", a new tool for double star research. (1983) (6)
Variations in the birefringence of quartz. (1967) (6)
The Configuration of the VLT Interferometer on the Paranal Site (1992) (6)
An ultraviolet polarimeter for the Solar Maximum Mission (1979) (6)
Use Of The Coherent MMT For Diffraction Limited Imaging (1986) (6)
High resolution spectroscopy of the disk chromosphere. V - Space-time variations observed simultaneously in seven lines (1977) (6)
TRACKING ALGORITHM FOR LOW CONTRAST EXTENDED OBJECT (2001) (6)
The Use Of The Multiple Mirror Telescope As A Phased Array (1984) (5)
Conductive flux in the chromosphere derived from line linear polarization observation (1983) (5)
Multi-conjugate Adaptive Optics: Experiment in Atmospheric Tomography (2002) (5)
VLT interferometer: proposed implementation (1990) (5)
The Sacramento Peak Observatory Universal Birefringent Filter (1973) (5)
Adaptive optics for the 8-meter Chinese Giant Solar Telescope (2013) (5)
Experiments in Differential Speckle Interferometry (1982) (5)
The maximum polarization for resonance scattering (1974) (5)
The polarization of coronal emission lines (1971) (5)
A Near Infrared Astronomical Adaptive Optics System (1989) (5)
The He+ λ 4686 line in the low chromosphere (1973) (5)
A high resolution spectral atlas of the solar irradiance from 380 to 700 nanometers. Volume I. Tabular form. Environmental research papers (1976) (5)
Removing Perspective Elongation Effects in Laser Guide Stars and Their Use in the ESO Very Large Telescope (1992) (5)
Improving Solar Image Quality by Image Selection (1989) (5)
Blind operation of optical astronomical interferometers options and predicted performance (1991) (5)
Planning The National New Technology Telescope (NNTT) IV. Coalignment/Cophasing System (1986) (5)
A Search for Solar Global Oscillations in the CA {\sc ii} K-Line (1977) (5)
Site survey for a large solar telescope (1998) (5)
VLT interferometer: IV. The utility of partial adaptive optics (1990) (4)
A Solar Lyman Alpha Coronagraph (1984) (4)
Grisms for infrared observations. (1988) (4)
Experiences with the Multiple Mirror Telescope. (1979) (4)
Using eclipse observations to test scintillation models (1995) (4)
The NOAO/ADP adaptive optics program and its application to solar physics. (1987) (4)
Planning the National New Technology Telescope (1986) (4)
Solar Maximum Mission Experiment - Ultraviolet Spectroscopy and Polarimetry on the Solar Maximum Mission (1981) (4)
The Use of the MMT for Interferometric Imaging (1984) (4)
Inhomogeneities in the Evershed flow (1964) (4)
A High Resolution Spectral Atlas of the Solar Irradiance from 380 to 700 Nanometers. Volume 1. Tabular Form (1976) (4)
Planning the VLT interferometer (1990) (4)
On the Relation Between Solar Granules and Spicules. (1964) (4)
Site tests for CLEAR by solar scintillometry (1998) (4)
Towards the Interferometric Imaging of Red Supergiants (2007) (3)
An analysis of the observed contrast of solar surface granulation (2001) (3)
Ir Thermography And Observatory Thermal Pollution (1986) (3)
CLEAR: A Concept for a Coronagraph and Low Emissivity Astronomical Reflector (1995) (3)
A Progress Report on the Implementation of the VLT Interferometer (1992) (3)
Optimization of partial adaptive optics. (1992) (3)
The History of the Fourier Tachometer (2013) (3)
Differential adaptive optics for astronomical interferometry. (1991) (3)
Two-Dimensional Infrared Astronomical Speckle Interferometry (1988) (3)
Development of SCIDAR for solar observations (2004) (3)
Solar circulation measurements: consideration and plans (1978) (2)
Possible Space Missions for Solar Research After Solar Maximum Mission (1977) (2)
Solar magnetic-field measurements using Babinet compensators (1969) (2)
The Multiple Mirror Telescope: A Progress Report (1983) (2)
Solar Rotation and Gravitational Red Shift as Determined from Sunspot Spectra (1976) (2)
Laser guide stars for daytime thermal IR observations (2008) (2)
Extremely large multiple mirror telescopes (2000) (2)
Spatial structure in lines in the 3398–3526 å region at the extreme limb: Observation, identification and interpretation (1978) (2)
High Resolution Solar Observations from the Ground (1997) (2)
The Intensity, Velocity, and Magnetic Structure in and Around a Sunspot (1968) (2)
Adaptive optics for large telescopes (1989) (2)
First results with the NOAO 2-D speckle camera for infrared wavelengths. (1988) (2)
Daytime seeing measurements for the advanced technology Sslar telescope (2002) (2)
Instrumental factors affecting the fringe contrast in optical interferometers (1990) (2)
High Resolution Imaging of Spectroscopic Binaries (1984) (2)
The Determination of Seeing, Isoplanatic Patch Size and Coherence Time by Solar Shadow Band Ranging (1999) (2)
High Resolution Imaging in the Infrared Using Adaptive Optics (1988) (2)
Interpretation of out-of-focus star images in terms of wave-front curvature (1994) (2)
Plans for High Resolution Imaging with the VLT (1989) (2)
Interferometry with the MMT and NNTT. (1988) (2)
Recent Developments At The Multiple Mirror Telescope (1983) (2)
The VLT Interferometer (1994) (2)
Tracking algorithms for low-contrast extended objects (2002) (2)
Comments on the next generation of ground-based solar telescopes (1996) (2)
Sunspots, gravitational redshift and exo-solar planet detection (2003) (1)
Dispersion of Birefringence of Calcite (1962) (1)
The Design of Delay Lines for the VLT Interferometer (1992) (1)
The National New Technology Telescope as a phased array (1986) (1)
Cophasing Telescope Arrays (1988) (1)
Appearance of Spicules on the Solar Disk. (1963) (1)
Effect of telecentric use of narrow-band filters on diffraction-limited imaging (1998) (1)
Profile and polarization of the coronal L$alpha$ line (1974) (1)
Adaptive optics developments at NOAO. (1988) (1)
Progress Report on a Feasibility Study of a Large Optical/Infrared Solar Telescope (CLEAR) (1997) (1)
Future Techniques and Instrumentation in Solar?Stellar Physics (1985) (1)
Plans For Coalignment And Cophasing Of The Optics In The 15-M National New Technology Telescope (NNTT) (1986) (1)
Some thoughts on the Large European Solar Telescope. (1979) (1)
The Advanced Solar Telescope: II. Technical Aspects (1999) (1)
The microstructure of sunspots (1969) (1)
Magnetic fields in the solar atmosphere (2013) (1)
Planning the 8-meter Chinese Giant Solar Telescope (2013) (1)
Continuation of the X-ray monitoring of Sgr A*: the increase in bright flaring rate confirmed (2020) (1)
The Flow Pattern within Solar Granules (1970) (1)
Observational evidence for unresolved motions in the solar atmosphere (1976) (1)
Solar Seeing Measurements at the Fuxian Lake Observatory (2002) (1)
OPTICAL TURBULENCE IN HIGH ANGULAR RESOLUTION TECHNIQUES IN ASTRONOMY (2009) (1)
Use of the solar limb effect to test photon decay and cosmological redshift theories (1979) (1)
Isoplanatic patch considerations for solar telescope multi-conjugate adaptive optics (2014) (1)
Correction of perspective elongation of Sodium beacons in the 50 m Euro50 telescope (2003) (1)
Oscillatory Phenomena in Sunspots (1972) (1)
Report on the solar physics-plasma physics workshop (1974) (1)
Solar Image Restoration by Adaptive Optics (1989) (1)
A Survey Of Present Efforts In Astronomical Adaptive Optics (1989) (1)
Results from Optical Interferometry (1985) (1)
Estimating the effects of nitrate mining activities on the astronomical site quality of the Cerro Paranal Observatory (1994) (1)
A Report on the Second ESO Conference on High Resolution Imaging by Interferometry (1991) (1)
Solar Surface Magnetism: Quests for Observations (1994) (0)
Application of the NOAO Infrared Imaging Array for 2-D Infrared Speckle Interferometry (1988) (0)
First Results of Imaging of Supergiant Envelopes with the Differential Speckle Interferometer (1982) (0)
High Resolution Spectroscopy with the VLT - Summary of Experimental Aspects (1992) (0)
Active Region Morphology and Evolution Images from the Ultraviolet Spectrometer and Polarimeter (1980) (0)
Optical Concepts For The Binary Star Explorer (1987) (0)
Tropospheric seeing effects on site selection and the use of adaptive optics for solar telescopes (2018) (0)
Analysis of Velocity Filtergrams (1969) (0)
Magnetic Field Extrapolations, XUV Observations and the Nature of Microwave Emission from Sunspots (1980) (0)
V/Vmax Test Applied to Gamma-Ray Bursts Detected by the Konus Experiment Aboard Venera 11 and 12 (1988) (0)
Summary of the splinter session on optical and UV science (1992) (0)
Instrumentation for Large Telescopes: Techniques for High Angular Resolution Astronomical Imaging (1997) (0)
Report on the Lunar Interferometry Study Team (LIST) activities. (1992) (0)
The Solar Beacon, An Experiment in Solar Astometry (1981) (0)
The VLT Interferometer : Are We Ready for It ? 2 . 1 Current Efforts in Optical lnterferometric Imaging (2009) (0)
Latest Results from the ATST Site Survey (2004) (0)
USING THE SCINTILLATION OF EXTENDED OBJECTS TO PROBE THE LOWER ATMOSPHERE (2009) (0)
First Images with the MPE Imaging Beam Combiner Simulator COSI (1994) (0)
Large Scale Flows Near the Solar Poles. (1978) (0)
Erratum: "The profiles of Fraunhofer lines in the presence of Zeeman splitting" [Sol. Phys., Vol. 9, p. 372 - 386 (1969)]. (1970) (0)
The Effect of Stellar Meridional Motions on Extrasolar Planet Detection (2005) (0)
Pupil Slicing Adaptive Optics:. Making Extremely Large Telescopes Diffraction Limited at Short Wavelengths (2009) (0)
Requirements for Adaptive Optics in Large Astronomical Telescopes (1992) (0)
Solar Maximum Mission Ultraviolet Spectrometer And Polarimeter (1979) (0)
Solar Physics - Plasma Physics Workshop (1974) (0)
12. RADIATION AND STRUCTURE OF THE SOLAR ATMOSPHERE (RADIATION ET STRUCTURE HE L'ATMOSPHERE SOLAIRE) PRESIDENT: M.K.V. Bappu (2015) (0)
Solar Seeing Seven Ways From Sunday (2001) (0)
Economy figure of merit for large telescope sites. (1987) (0)
A comparison of spicules in the H$alpha$ and He II (304A) lines. Research note (1975) (0)
Compression of data resulting from photon counters (1975) (0)
Observations of dynamical phenomena in sunspots (1981) (0)
First Results of the Site Survey for a Large Solar Optical/Infrared Telescope (1997) (0)
High angular resolution infrared imaging at NOAO (Poster) (1987) (0)
Introducing the First VLT Instrument Science Teams (1992) (0)
Contributions by RG Giovanelli to Solar Instrumentation (1985) (0)
Future giant telescopes: astronomy's Holy Grail or Pandora's Box? (2003) (0)
Diffraction-limited astronomical infrared imaging through the turbulent atmosphere (1988) (0)
Density diagnostic of solar active region and flare plasmas from Si IV/O IV line ratio as observed from SMM (Solar Maximum Mission). (1980) (0)
The VLT Interferometer [invited] (1994) (0)
Solar rotation measured at the Wilcox Solar Observatory. (1986) (0)
The Coalignment and Cophasing of the National New Technology Telescope (1985) (0)
Interferometric Capabilities of the Nntt (1987) (0)
Airborne Video Recorded Coronal Emission Line Profiles of λ 5303 at the 10 July 1972 Total Solar Eclipse. (1973) (0)
Examples of Non-Thermal Motions as Seen on the Sun (1980) (0)
The photospheric vector magnetic field of a sunspot and its vertical gradient (1981) (0)
A Rocket Borne Solar Eclipse Experiment to measure the Temperature Structure of the Solar Corona via Lyman-α Line Profile Observations (1982) (0)
Sunspot Observations with the Ultraviolet Spectrometer and Polarimeter Experiment on the Solar Maximum Mission (1980) (0)
Working Group on Magnetograph Calibration (1973) (0)
Results of Site Testing for a Large Visible/Infrared Telescope (1998) (0)
The daytime use of Adaptive Optics for solar and stellar Extremely Large Telescopes (2002) (0)
Telescope sites: summary and conclusions. (1987) (0)
The Solar Limb Effect. (1977) (0)
Multiple Aperture Telescopes And Adaptive Optics In Astronomy (1987) (0)
A Fourth VLT Instrument Science Team (1992) (0)
Spatially resolved motions in stellar atmospheres (1976) (0)
The Profile of the Coronal Lyman-α Line. (1973) (0)
High Resolution Spectroscopy with Extremely Large Telescopes Using Pupil Slicing Adaptive Optics (2006) (0)
The use of colored photographic images in photographic subtraction. (1971) (0)
Progress in high resolution astronomical imaging including active and adaptive optics (1993) (0)
1988–1993: The Final Definition of the Very Large Telescope Interferometer, its Site and Configuration (2007) (0)
An Accurate Wavelength Calibration of CCD CASPEC Echelle Spectra (2009) (0)
Progress Report on the Performance of the Multiple Mirror Telescope (1982) (0)
A search for auroral type motions in solar flares (1977) (0)
Solar Flare and Surge Image Sequences as Seen by the Ultraviolet Spectrometer and Polarimeter on SMM (1980) (0)
Observing White-Light Flares (1983) (0)
A deep polar spectroscopic telescope "DEEPS". (1987) (0)
Spatial and Spectral Structure of Chromospheric Lines (1974) (0)
High Spatial and Temporal Resolution Observations of the Magnetic Field in a Sunspot. (1973) (0)
Interferometry with ESO's Very Large Telescope (1990) (0)
High resolution spectroscopy with extremely large telescopes using pupil slicing (2006) (0)
Multiscale optimal interpolation (2014) (0)
Multiple Mirror Telescope Observatory. Report (1984) (0)
Fine Structure Variations in High-Spatial-Resolution Solar Spectra. (1976) (0)
Performance Comparison of VLT Using Partial Adaptive Optics with a Lunar Interferometer (1992) (0)
The Use of Differential Adaptive Optics for Astronomical Interferometry (1992) (0)
A broad look at solar physics adapted from the solar physics study of August 1975 (1979) (0)
Limitations Placed on the Time Coverage, Isoplanatic Patch Size and Exposure Time for Solar Observations Using Image Selection Procedures in the Presence of Telescope Aberrations (1996) (0)

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