activity
20112015
most citedNew expansion rate measurements of the Crab Nebula in radio and optical

36 citations · 54 across the 7 of their papers we have counts for

collaborators
Showing astro-ph.SRShow all

6 papers · 1 filter

astro-ph.SR2013★ 1 cited

The Measurement of Solar Diameter and Limb Darkening Function with the Eclipse Observations. Thesis work

Andrea Raponi

A discussion of the solar diameter and its variations must be linked to the limb darkening function (LDF). We introduce a new method to perform high resolution astrometry of the so…

astro-ph.SR2012

Eclipse, solar limb darkening function and diameter measurements: toward a unified approach

Andrea Raponi, Costantino Sigismondi, Konrad Guhl +2

In order to perform high resolution astrometry of the solar diameter from the ground, through the observations of eclipses, the study of the limb darkening profile is described. Kn…

astro-ph.SR2012

Solar limb darkening function and solar diameter with eclipses observations

Andrea Raponi, Costantino Sigismondi, Konrad Guhl +2

We introduce a new method to perform high resolution astrometry of the solar diameter from the ground, through the observations of eclipses. A discussion of the solar diameter and…

astro-ph.SR2011★ 4 cited

The Measurement of Solar Diameter and Limb Darkening Function with the Eclipse Observations

Andrea Raponi, Costantino Sigismondi, Konrad Guhl +2

The Total Solar Irradiance varies over a solar cycle of 11 years and maybe over cycles with longer period. Is the solar diameter variable over time too? We introduce a new method t…

astro-ph.SR2011★ 1 cited

Measuring solar disk shape up to relativistic accuracy: the role of scintillation in ancient naked eye data

Costantino Sigismondi, Richard Nugent, Gerhard Dangl

The orbital displacement of the Moon is known to a precision on the order of centimeters from the lunar laser ranging data, while the lunar profile's confidence level is still only…

astro-ph.SR2011★ 12 cited

Towards a unified definition of solar limb during central eclipses and daily transits

Costantino Sigismondi, Andrea Raponi, Cyril Bazin +1

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 sever…