Search Results - "Bertello, L."

A Multi-Observatory Inter-Comparison of Line-of-Sight Synoptic Solar Magnetograms by Riley, P., Ben-Nun, M., Linker, J. A., Mikic, Z., Svalgaard, L., Harvey, J., Bertello, L., Hoeksema, T., Liu, Y., Ulrich, R.

“…The observed photospheric magnetic field is a crucial parameter for understanding a range of fundamental solar and heliospheric phenomena. Synoptic maps, in…”
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Short-Term Variations in the Equatorial Rotation Rate of Sunspot Groups by Javaraiah, J., Bertello, L.

“…We have detected several periodicities in the solar equatorial rotation rate of sunspot groups in the catalog Greenwich Photoheliographic Results (GPR) during…”
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Uncertainty Estimates of Solar Wind Prediction Using HMI Photospheric Vector and Spatial Standard Deviation Synoptic Maps by Poduval, B., Petrie, G., Bertello, L.

“…The solar wind prediction is based on the Wang and Sheeley ( Astrophys. J. 365 , 372, 1990 ) empirical relationship between the solar wind speed observed at…”
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Rheological properties of clayey soils originating from flow-like landslides by Carrière, S. R., Jongmans, D., Chambon, G., Bièvre, G., Lanson, B., Bertello, L., Berti, M., Jaboyedoff, M., Malet, J.-P., Chambers, J. E.

“…Flow-like landslides in clayey soils represent serious threats for populations and infrastructures and have been the subject of numerous studies in the past…”
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Uncertainties in Solar Synoptic Magnetic Flux Maps by Bertello, L., Pevtsov, A. A., Petrie, G. J. D., Keys, D.

“…Magnetic flux synoptic charts are critical for a reliable modeling of the corona and heliosphere. Until now, however, these charts were provided without…”
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The Mount Wilson Ca ii K Plage Index Time Series by Bertello, L., Ulrich, R. K., Boyden, J. E.

“…It is well established that both total and spectral solar irradiance are modulated by variable magnetic activity on the solar surface. However, there is still…”
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Comparison of Ground-Based and Space-Based Longitudinal Magnetograms by Pietarila, A., Bertello, L., Harvey, J. W., Pevtsov, A. A.

“…We compare photospheric line-of-sight magnetograms from the Synoptic Optical Long-term Investigations of the Sun (SOLIS) Vector Spectro-Magnetograph (VSM)…”
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On a limitation of Zeeman polarimetry and imperfect instrumentation in representing solar magnetic fields with weaker polarization signal by Pevtsov, A A, Liu, Y, Virtanen, I, Bertello, L, Mursula, K, Leka, K D, Hughes, A L H

“…Full disk vector magnetic fields are used widely for developing better understanding of large-scale structure, morphology, and patterns of the solar magnetic…”
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SIGNATURE OF DIFFERENTIAL ROTATION IN SUN-AS-A-STAR Ca II K MEASUREMENTS by BERTELLO, L, PEVTSOV, A. A, PIETARILA, A

“…The characterization of solar surface differential rotation (SDR) from disk-integrated chromospheric measurements has important implications for the study of…”
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Power Spectrum Analysis of Mount Wilson Solar Diameter Measurements: Evidence for Solar Internal r-mode Oscillations by Sturrock, P. A, Bertello, L

“…This paper presents a power-spectrum analysis of 39,024 measurements of the solar diameter made at the Mount Wilson Observatory from 1968.670 to 1997.965. This…”
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Search for Short-Term Periodicities in the Sun’s Surface Rotation: A Revisit by Javaraiah, J., Ulrich, R. K., Bertello, L., Boyden, J. E.

“…We have used the daily values of the equatorial rotation rate determined from the Mt. Wilson daily Doppler-velocity measurements during the period 3 December…”
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Improvements in the Determination of ISS Ca ii K Parameters by Bertello, L., Pevtsov, A. A., Harvey, J. W., Toussaint, R. M.

“…Measurements of the ionized Ca ii  K line are one of the major resources for long-term studies of solar and stellar activity. They also play a critical role in…”
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Interpretation of Solar Magnetic Field Strength Observations by Ulrich, R. K., Bertello, L., Boyden, J. E., Webster, L.

“…This study based on longitudinal Zeeman effect magnetograms and spectral line scans investigates the dependence of solar surface magnetic fields on the…”
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The reversal of the Sun’s magnetic field in cycle 24 by Mordvinov A.V., Pevtsov A.A., Bertello L., Petrie G.J.D.

“…Analysis of synoptic data from the Vector Spectromagnetograph (VSM) of the Synoptic Optical Long-term Investigations of the Sun (SOLIS) and the NASA/NSO…”
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The sun-as-a-star solar spectrum by Pevtsov, A.A., Bertello, L., Marble, A.R.

“…The Sun is the only star for which individual surface features can be observed directly. For other stars, the properties of starspots, stellar rotation,…”
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Long-Term Variations in Solar Differential Rotation and Sunspot Activity by Javaraiah, J, Bertello, L, Ulrich, R K

“…The solar equatorial rotation rate, determined from sunspot group data during the period 1879-2004, decreased over the last century, whereas the level of…”
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Modeling Total Solar Irradiance Variations Using Automated Classification Software on Mount Wilson Data by Ulrich, R. K., Parker, D., Bertello, L., Boyden, J.

“…We present the results using the AutoClass analysis application available at NASA/Ames Intelligent Systems Div. ( 2002 ) which is a Bayesian, finite mixture…”
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An Interpretation of the Differences in the Solar Differential Rotation during Even and Odd Sunspot Cycles by Javaraiah, J, Bertello, L, Ulrich, R. K

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Looking for Gravity-Mode Multiplets with the GOLF Experiment aboard SOHO by Turck-Chièze, S, García, R. A, Couvidat, S, Ulrich, R. K, Bertello, L, Varadi, F, Kosovichev, A. G, Gabriel, A. H, Berthomieu, G, Brun, A. S, Lopes, I, Pallé, P, Provost, J, Robillot, J. M, Roca Cortés, T

“…This paper is focused on the search for low-amplitude solar gravity modes between 150 and 400 mu Hz, corresponding to low-degree, low-order modes. It presents…”
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Glycoinositolphospholipids, free and as anchors of proteins, in Trypanosoma cruzi by Lederkremer, R M, Bertello, L E

“…The most important glycoproteins of trypanosomatids are anchored by glycoinositolphospholipids (GIPLs) to their plasma membrane. In addition, free GIPLs have…”
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