92 citations · 164 across the 7 of their papers we have counts for
7 papers
Filling Factors of Sunspots in SODISM Images
Amro F. Alasta, Abdrazag Algamudi, Fatma Almesrati +2
Received: 1st December 2018; Accepted: 18th February 2019; Published: 1st April 2019 Abstract: The calculated filling factors (FFs) for a feature reflect the fraction of the solar…
Investigation of faint galactic carbon stars from the first Byurakan spectral survey. III. Infrared characteristics
K. S. Gigoyan, A. Sarkissian, C. Rossi +5
Infra-Red(IR) astronomical databases, namely, IRAS, 2MASS, WISE, and Spitzer, are used to analyze photometric data of 126 carbon stars whose spectra are visible in the First Byurak…
On-Orbit Degradation of Solar Instruments
A. BenMoussa, S. Gissot, U. Schühle +38
We present the lessons learned about the degradation observed in several space solar missions, based on contributions at the Workshop about On-Orbit Degradation of Solar and Space…
On the importance of astronomical refraction for modern Solar astrometric measurements
T. Corbard, R. Ikhlef, F. Morand +2
In this work we study in details the influence of pure astronomical refraction on solar metrologic measurements made from ground-based full disk imagery and provide the tools for c…
Dark signal correction for a lukecold frame transfer CCD. Application to the SODISM solar telescope on board the PICARD space mission
J. -F. Hochedez, C. Timmermans, A. Hauchecorne +1
When Charge Coupled Devices are used for scientific observations, their dark signal is a hindrance. In their pristine state, most CCD pixels are `cool'; they exhibit low, quasi uni…
PICARD SODISM, a space telescope to study the Sun from the middle ultraviolet to the near infrared
M. Meftah, J. -F. Hochedez, A. Irbah +25
The Solar Diameter Imager and Surface Mapper (SODISM) on board the PICARD space mission provides wide-field images of the photosphere and chromosphere of the Sun in five narrow pas…
Helioseismology with PICARD
T. Corbard, D. Salabert, P. Boumier +10
PICARD is a CNES micro-satellite launched in June 2010 (Thuillier at al. 2006). Its main goal is to measure the solar shape, total and spectral irradiance during the ascending phas…