TOWARDS A UNIFIED DEFINITION OF SOLAR LIMB DURING CENTRAL ECLIPSES AND DAILY TRANSITS-Reference-Cited by-同舟云学术

TOWARDS A UNIFIED DEFINITION OF SOLAR LIMB DURING CENTRAL ECLIPSES AND DAILY TRANSITS

Published:2012-01 Issue: Volume:12 Page:405-413
ISSN:2010-1945
Container-title:International Journal of Modern Physics: Conference Series
language:en
Short-container-title:Int. J. Mod. Phys. Conf. Ser.

Author:

SIGISMONDI COSTANTINO¹²³,RAPONI ANDREA¹,BAZIN CYRIL⁴,NUGENT RICHARD⁵

Affiliation:

1. Sapienza University of Rome, Physics Dept. P.le Aldo Moro 5, Roma, 00185, Italy

2. University of Nice-Sophia Antipolis (France), France

3. IRSOL, Istituto Ricerche Solari di Locarno, (Switzerland), Switzerland

4. Institute dAstrophysique de Paris, 98 Bis Bd. Arago, Paris, F-75014, France

5. IOTA, International Occultation Timing Association, US Section, USA

Abstract

The diameter of the Sun has been measured using Baily's beads during central eclipses, observed with portable telescopes. A blend of tiny emission lines produced in the first several hundred kilometers above the photosphere gives a light signal which prolonges the light curves of the beads. The simple criterion of light OFF/ON adopted in the previous approaches to define the timing of photosphere's disappearance/reappearance is modified. The technique of the limb darkening function reconstruction from the Baily's beads light curves is introduced here.

Publisher

World Scientific Pub Co Pte Lt

Link

https://www.worldscientific.com/doi/pdf/10.1142/S2010194512006629

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