The solar limb during eclipses: Flash Spectrum Region and Baily beads Costantino Sigismondi ICRA-Sapienza, Roma; Université de Nice-Sophia Antipolis and.

Slides:

Advertisements

Similar presentations

1 Accuracy of Solar Radius Determinations from Solar Eclipse Observations, and Comparison with SOHO Data David W. Dunham, Johns Hopkins Univ./Applied Physics.

Advertisements

1 Introduction Experimental setup Summations measurements of Bailys bead width during contacts Inflexion points and contacts Measurements of intensities.

IOTA Observations of the 2010 July 11 th Total Solar Eclipse from French Polynesia 2010 Sept. 30 Institute dAstrophysique de Paris David W. Dunham, IOTA.

31 st European Symposium on Occultation Projects (ESOP-31) Pescara, Italy, late August, 2012 Report given 2012 October 19 IOTA meeting, Las Vegas, Nevada.

Shadows Transits and Eclipses Images courtesy of Dr. Chris Mullis (KH7XT) EUMETSAT, NASA, Berkin Aydogmus (TA3J) & Anthony Ayiomamitis.

ACTIVE GALACTIC NUCLEI X-ray broad--band study A. De Rosa, L. Piro Ginga/ROSAT/ASCA IASF-Roma Universita' di Roma La Sapienza Institute of.

Basics & Motivation Technique & Observations Fits & Measurements Summary & Outlook Atmospheric Wave Workshop ESTEC 11/10/2011 Tobias Stangier I st Physics.

Adriana Silva-Válio (Mackenzie University – Brazil) A. F. Nucio (Osservatorio Astrofisico di Catania, Italy) R. Alonso and P. Barge (LAM - France) CoRoT.

ICSO High Accuracy Laser Telemetry for Kilometric Distance Measurement in Space C.COURDE, H. PHUNG Duy, M. LINTZ, A. BRILLET ARTEMIS, Observatoire.

A new Space Weather Observatory in Tamanrasset Dr T. Abdelatif Solar Physics Division Centre de recherches en Astronomie, Astrophysique et Géophysique.

Astronomy 1 – Winter 2011 Lecture 4; January

A possible mechanism for understanding the enigmatic scattering polarization signals observed in the solar Na I and Ba II D 1 lines Luca Belluzzi 1 and.

Prof Martin Hendry School of Physics and Astronomy, University of Glasgow Captain Cook and the Cosmic Yardstick.

Lunar Grazing Occultations What are they? Why are they Valuable? Are they fun?

Calibration commissioning 16/01/2003: Extended ‘Normal mode’ 282 columns 22/01/2003: TOTAL forward and reverse scans ~11:00-12:15 23/01/2003:Earth stare.

Evidence of icy grains in the coma of comet 103P/Hartley 2 from ground based observations G. P. Tozzi 1, P. Patriarchi 1, E. Mazzotta-Epifani 2, L. M.

SPD/AAS Poster May 2007 Mark Weber Smithsonian Astrophysical Observatory On-Orbit Measurement of the Hinode / XRT Point Response Function.

Day 2 notes Ch. 1 second half Motion of the Moon and eclipses.

CNES has scheduled the launch of PICARD microsatellite in October (1) SA (F) IRMB (B) PMOD (Ch) OCA Nice University IAS LMD (3) Yale university HAO.

Physics 202: Introduction to Astronomy – Lecture 13 Carsten Denker Physics Department Center for Solar–Terrestrial Research.

ASTR 2310 Chapter 4 –Angular Sizes and Eclipses (Based on lecture slides I use in ASTR 1050 from Horizons by Michael Seeds – nice figs)‏

WIDE FIELD IMAGING OF MERCURY’S TAIL 2nd Meeting of the International Mercury Watch (IMW) Group Observatoire de Paris Observatoire de Paris 5-6 May 2008.

The Search for Earth-sized Planets Around Other Stars The Kepler Mission (2009)

Chapter 3: Cycles of the Sky.

August 21, 2017 Total Eclipse Plans of the International Occultation Timing Association (IOTA) David Dunham, Richard Nugent, D. Herald, P. Maley, Joan.

The Transit of Venus June 8, 2004 Presented By: Amber Foster, Brad Prather, and Dr. Summers.

What stellar properties can be learnt from planetary transits Adriana Válio Roque da Silva CRAAM/Mackenzie.

A survey of the solar system Michael Balogh The solar system (PHYS 275)

Padé and Symmetrized Padé Approximants in Data Processing Bénédicte Dujardin (1) (2) (3) (4) Ph.D. student Jean-Daniel Fournier (1)

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display 1 Mars Figure 1.14.

Final Topics in Space Science SCI 2201 Solar and Lunar Eclipse & Reason for the Seasons.

The REAL OCCULT: Lunar & Solar Eclipses and Asteroid & Stellar Disappearances Sometimes Involving Luna By Dr. Harold Williams of Montgomery College Planetarium.

Studying for the Exam Relevant chapters: E, 1, 2 & 3 To prepare for the exam it is helpful to … –review readings –review lecture notes online (esp. concept.

We are 66 Km North of the Tropic of Cancer…. Eratostenes’ method for measuring Solar Diameter ~ b.C.

Moon Notes. How much bigger is the Earth than the Moon? Earth radius = 6,385 km Moon radius = 1,738 km How much bigger by diameter or radius? 6385.

Eclipses. Two Types – Solar Eclipse – Lunar Eclipse Solar Eclipse – The moon blocks the earth’s view of the sun. Lunar Eclipse – The earth blocks the.

C2PU IN A NUT SHELL © C2PU, Observatoire de la Cote d’Azur, Université de Nice Sophia-Antipolis Jean-Pierre Rivet CNRS, OCA, Dept. Lagrange

AST 101 Lecture 8 Astronomy in the 17 th and 18 th Centuries.

December 7, 1631December 9, 1874 December 4, 1639December 6, 1882 June 6, 1761June 8, 2004 June 3, 1769June 6, 2012 Transits of Venus across the disk of.

August 21, 2017 Total Eclipse Plans Richard Nugent 32nd IOTA Annual Meeting July 13, 2014.

21/22 February 2003Granada iAstro Worshop1 Analysis of Astrophysical Data Cubes using Cross-correlations and Wavelet Denoisings A.Bijaoui 1, D.Mékarnia.

Is an independent part of the International Occultation Timing Association IOTA-ES is an taxexempt organization under german laws, with members in many.

OBSERVING THE SUN & PLANETARY TRANSITS Petr HEINZEL Solar Physics Department Astronomical Institute of the Academy of Sciences Czech Republic.

HISTORY OF ASTRONOMY CONTD Nicolus Copernicus ( )  Heliocentric model.  Circular orbits.  Explanation of the retrograde motion of planets.

Transit of Venus 5 June A Rare Event Transits of Venus were important events in the history of astronomy They occur in pairs 8 years apart, separated.

FM13p.21 – Solar Diameter Measurements from Eclipses as a Solar Variability Proxy David W. Dunham*, Internat’l Occultation Timing Assoc. (IOTA); Sabatino.

1._____began from a nebula that was disturbed (big bang) 2._____observed the phases of Venus (astronomers) 3._____theory of the sun centered view of the.

Solar Modeling Sabatino Sofia Department of Astronomy Yale University New Haven, CT, USA.

The Space Weather Week Monique Pick LESIA, Observatoire de Paris November 2006.

ASTR 111 – 003 Fall 2007 Lecture 02 Sep. 10, 2007 Introducing Astronomy (chap. 1-6) Introduction To Modern Astronomy I: Solar System Ch1: Astronomy and.

of Montgomery College Planetarium

DEp.1.08 – Plans to Observe the 2017 Total Solar Eclipse from near the Path Edges David W. Dunham* and Richard Nugent, International Occultation Timing.

SBF with HST Previous ACS & Future WFC3 measurements Michele Cantiello INAF Osservatorio Astronomico di Teramo –Gabriella Raimondo –Enzo Brocato –Ilaria.

THE SOLAR SYSTEM. BODIES IN THE SOLAR SYSTEM Our planet, Earth, is part of a system of planets that orbit a star, the sun. The solar system is comprised.

Transit of Mercury May 9, Outline A transit of Mercury is about to happen May 9, 2016 Very rare event Visually impressive event Shows the solar.

Mercury Transit 2006 Patrick P. Murphy, Ph.D. National Radio Astronomy Observatory (and long-time Amateur Astronomer)

PHYS Astronomy Homework Set #2 8/31/16 Due 9/12/16 Chapter 3 Review Questions 1, 2, 9 Problems 1, 7, 9, 11 Using the small angle formula, calculate.

Eclipses and the Motion of the Moon Chapter Three.

The 2017 Solar Eclipse: IOTA effort, outreach, & sites; discussion

The Solar Oblateness Measured On Board The PICARD Spacecraft,

IEEE ICRA’07 Digest Template Paper Title in One or Two Lines

THE LHIRES-III SPECTROGRAPH

ACGRG5 Meeting Christchurch New Zealand 18 XII 2009

Eclipses Astronomy.

Absence of Impact Polarization in H

C2PU IN A NUT SHELL Version 03, 05/02/2017 Jean-Pierre Rivet

Planet Report 3rd Grade Your name.

Measurements of the wave-front outer scale at Paranal

Apex scanning strategy & map-making

‘Round ‘Round They Go Fusion Digital Lesson Unit 4 Lesson 2 Set up Paper for Cornell Notes Define gravity. Describe the relationships between Earth, the.

Presentation transcript:

The solar limb during eclipses: Flash Spectrum Region and Baily beads Costantino Sigismondi ICRA-Sapienza, Roma; Université de Nice-Sophia Antipolis and IRSOL Istituto Ricerche Solari di Locarno post-éclipse meeting, IAP

ICRA and solar physics

Participating institutions ICRA, International Center for Relativistic Astrophysics Sapienza University of Rome # IOTA ES and US * # Osservatorio Astronomico di Roma # Basilica di Santa Maria degli Angeli, Roma * Yale Astronomy Department # Université de Nice-Fizeau Dept. # Observatoire de la Cote d'Azur (Calern site PICARD Sol) * Institute d'Astrophysique de Paris * # IRSOL * # # data and analysis * observations (CLAVIUS)

Classification of Solar diameter measurements

Measuring radius from Earth Drift-scan: solar angular speed * transit time = diameter problem: seeing Angular direct measurements – problem: seeing, optical aberration Mercury and Venus transits: planetary speed * transit time = diameter - problem: scintillation, black drop Eclipses with Bailys beads – problem: scintillation, signal to noise, filter, FSR

Last solar cycle XXIII: SOHO data (June 2010)

Calibrating eclipses for studying secular variations

Eclipse Problem 1: scintillation

Problem 2: Flash Spectrum Region

Flash Spectrum (1905)

Problem 3: lunar profile Watts (1962) σ>0.2 random Kaguya (2009) σ<<0.01 sampling each Sampling 1-10 km

Real lunar limb vs Watts profile (Kilcic, Sigismondi, Rozelot & Guhl, So. Phys. 2009)

10 km Locarno Solar Obsevratory IRSOL Istituto Ricerche Solari di Locarno

δR =-0.41±0.05 (Kilcic et al. 2009) on 29 march 2006, in agreement with SOHO 2003 data preliminary:δR =-0.36±0.15 on 15 Jan 2010, based on 6 beads from R.Nugent

LIMB DARKENING FUNCTION WITH BAILYS BEADS ANALYSIS Andrea Raponi and C. Sigismondi Sapienza University of Rome

Total Solar Irradiance changed in the past, so also the diameter ? Hendrick Avercamp ( ), Amsterdam

Eclipses Beads of 15/01/2010 by R. Nugent with Kaguya profile; software Occult

Solar Limb and LDF seeing and inflection point

Bailys bead light curve depends on Valleys profile + real LDF scintillation

LDF and Flash Spectrum Region?

computing LDF from light curve and Kaguya lunar profile

LDF from 2 different beads x:units of 6 mas

Synthetic LDF from Poissonian noise

Notes: quartz oscillators physics Thewlis Enc. Dictionary of Physics, Pergamon Press 1962 Quartz, the preparation and use of, oscillators

Annular Eclipse of 22/9/ watches: SONY e CASIO

in French Guyana the temperature was > 8 °C than in Rome

Roman tradition in solar diameter

….and in eclipses: In 1581 edition Clavius wrote: relinquebatur in Sole circulus quidam exilis undique totam lunam ambiens. He actually saw an annular eclipse. The Sun in 1567 was >2.5 arcsec larger than now ? Not possible for physical reasons…