The Virtual Solar Observatory 1 Solar Data Sets

1
The Virtual Solar Observatory1 - Solar Data Sets
2
What is the VSO?

• A search engine and user interface uniting 67
  solar data sets that reside at several different
  institutions
• A way for solar physicists to easily search
  multiple data sets with a single access point
• An application that can be integrated into IDL
  codes to locate and access data on the Internet
• It is NOT an centralized data archive the data
  should be located with the experts who obtained
  it, and who understand its idiosyncrasies.
• Access points are at GSFC, NSO, Stanford

3
VSO history

• Several unsuccessful attempts to obtain funding,
  1999-2001
• Finally successful in 2001 via NASA senior review
• Idea was to replace GSFC SDAC
• First release in Dec 2004 at AGU
• Continual funding from NASA to present time at
  about 250k/year

4
VSO contributors past present

• NASA/GSFC (Gurman, Hourcle, Dimitoglou, Hughitt)
• NSO (Suarez Sola, Wampler, Hill)
• MSU (Martens, Davey, Yoshimura)
• CfA (Martens, Davey)
• Stanford (Bogart, Tian, Spencer)
• Arcetri (Reardon)

5
How It Works
6
Data sets

• Intensity images
• White light/broad band/continuum
• H-?
• Ca K
• EUV
• X-Ray
• He 10830
• SOHO EIT
• Corona
• G-Band
• Radio
• Magnetograms
• Longitudinal (Line-of-sight)
• Vector
• Dopplergrams
• Synoptic maps

• Coronal hole maps
• Spectra
• In-situ measurements
• Other time series
• Helioseismology
• Mode parameters
• Far-side images
• Flow maps
• Space missions
• Hinode
• SOHO
• TRACE
• STEREO
• Movies

7
White light
Broadband, continuum Shows sunspot morphology
GONG
8
H-?
Filaments, sunspots, plage, chromosphere
9
Calcium K
3933 Å Shows network fields, plage
Mt. Wilson 1951
10
EUV 195 Å
Favorite of space missions Activity, flares, loop
dynamics
Hinode EIS
11
X-ray
Hot corona
Hinode XRT
RHESSI
Yohkoh SXT
GOES 12 SXI
Hinode XRT
12
He I 10830
NSO/KP (EW)
Ground-base proxy for coronal x-rays
13
SOHO/EIT images
284 Å 2 million degrees Corona
195 Å 1.5 million degrees Corona
171 Å 1 million degrees Corona
304 Å 70,000 degrees Chromosphere
SOHO/EIT
14
Coronal images
Ground-based Various wavelengths
15
G-Band
4305 Å molecular line High-contrasts active
region images
16
Radio
OVRO
Time-frequency
17
Radio Images
NRAO/VLA 6.4 GHz
18
LongitudinalMagnetograms
NSO/KP 8688
NSO/KP 8542
19
Vector (SOLIS)
20
(No Transcript)
21
Dopplergrams
Rotation, supergranulation, helioseismology
SOHO/MDI
NSO/GONG
22
Synoptic maps
Unroll the solar surface over all
360 Frequently interpreted as an image of the
entire solar surface at one time, but contains
data covering 25-35 days
23
Coronal hole maps
Created from He 10830 images
24
Spectra
NSO ISS spectrum
NSO/FTS solar atlas
25
In-situ measurements
Particle parameters, magnetic fields, solar wind
26
More In-situ
27
Other time series
Irradiance, various global magnetic field
parameters
28
X-ray time series
29
Helioseismology data

• Mode parameters
• Frequencies
• Line widths (life times)
• Amplitudes
• Asymmetry
• Time series of spherical harmonic coefficients
• Far-side signature
• Flow maps

30
Far-side data
31
Hinode EIS data sets
32
TRACE
33
STEREO 3D Images
34
Solar Monitor.org
35
SOHO Movies
36
Flare Movies

• TRACE No. 1 No. 2 No. 3

H a Movies
37
More Flare Movies

• No. 1
• No. 2
• No. 3

38
G-Band movies from SST
39
(No Transcript)
40
STEREO Movies
41
Following a CME into the heliosphere with STEREO
42
Hinode Movies
Hinode XRT Eclipse
Hinode SOT G-Band
43
Hinode movies

• Spicules at the solar limb
• Large flare of Dec 2006
• Emergence of a magnetic trilobite
• Sunspot magnetic field and temperature
• Active region evolution over 9 days