Research Instruments at Sunspot


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IBIS (INAF-Arcetri)

The Interferometric BIdimensional Spectropolarimeter is a unique, high cadence, dual interferometer imaging spectropolarimeter. In simpler terms, IBIS can take an image of  region on the Sun in a very narrow wavelength-band.  It is often used to "step" along specific spectral lines that are good indicators of conditions in the solar photosphere and chromosphere. IBIS was built by the INAF-Arcetri Astrophysical Observatory in Italy, with support from the Department of Physics & Astronomy at the University of Florence, and the Department of Physics at the University of Rome.

More IBIS information and publications

ROSA (ARC, Queen's University Belfast)

The Rapid Oscillations in the Solar Atmosphere instrument is a high-cadence, high-efficiency solar imaging instrument. Designed by the Astrophysics Research Center at Queen's University Belfast in Northern Ireland, ROSA consists of six cameras, each sensitive to a different wavelength band. ROSA is capable of a cadence greater than 30 fps, and is capable of extremely high resolution, corresponding to a spatial scale ranging from 84-158 km in the solar atmosphere.

More ROSA information and publications

FIRS (IfA, University of Hawai'i)

The Facility InfraRed Spectropolarimeter is an advanced slit-based spectropolarimeter designed to provide simultaneous coverage of visible and infrared wavelengths. It was designed by the Institute for Astronomy at the University of Hawai'i, with support from the National Solar Observatory (NSO).  It is designed to maximize efficiency when observing the spectral lines of Helium and Iron. By positioning the spectrograph slit in multiple locations along a region of interest, FIRS can be used to build a map of the region at a high spatial and spectral resolution.

More FIRS information and publications


The Spectrro-POlarimeter for INfrared and Optical Regions is a slit-based spectropolarimeter built by the High Altitude Observatory (HAO) in Boulder, CO, and the NSO. Up to four synchronized cameras sample different spectral lines, with up to two infrared channels, providing spectropolarimetry for much of the visible and near-infrared regime.

More information about SPINOR


selected publications, ibis:

1. Cavallini, F., Berrilli, F., Cantarano, S., Egidi, A., 2001, 
Memorie della Societa Astronomica Italiana72 , 554, 
IBIS: a new instrument for solar bidimensional spectroscopy

2. Reardon, K., Cavallini, F., 2003, 
Memorie della Societa Astronomica Italiana74 , 815, 
Characterization of the IBIS Transmission Profile

3. Janßen, K., Cauzzi, G., Falchi, A., Cavallini, F., Reardon, K., 2004, 
Multi-Wavelength Investigations of Solar Activity223 , 631, 
IBIS Observations of Quiet Sun Photosphere - Velocity Structure from Fe I 7090.4 Å

Selected Publications, ROSA:

1. Jess, D.B., Mathioudakis, M., Christian, D.J., Keenan, F.P., Ryans, R.S.I., Crockett, P.J., 2009,
Solar Physics, 10, 1007,
ROSA: A high cadence, synchronized, multi-camera solar imaging system

2. Jess, D.B., Mathioudakis, M., Christian, Crockett, P.J., Keenan, F.P., 2010,
The Astrophysical Journal Letters, 719, L134-L139,
A Study of Magnetic Bright Points in the NaI D1 Line

3. Crockett, P.J., Mathioudakis, M., Jess, D.B., Shelyag, S., Keenan, F.P.,  Christian, D.J., 2010
The Astrophysical Journal Letters, 722, L188-L193,
The Area Distribution of Solar Magnetic Bright Points

Selected Publications, FIRS:

1. Jaeggli, S.A., Lin, H.,  2009
The First Vector Magnetogram Comparison Group Meeting, October 2009, NSO/Tucson
FIRS: A New Instrument for Multi-Wavelength Spectropolarimetry

2. Jaeggli, S.A., Lin, H., Mickey, D. L., Kuhn, J. R., Hegwer, S. L., Rimmele, T. R., Penn, M. J., 2009
NSO Workshop #25, September 2009, Sacramento Peak
 FIRS: A New Instrument for Photospheric and Chromospheric Studies the the Dunn Solar Telescope 

3. Jaeggli, S.A., Lin, H., Uitenbroek, H., 2010
The 6th Solar Polarization Workshop, Ka'anapali, June 2010
 Molecule Formation and Magnetic Field Evolution in Sunspots 

Selected Publications, SPINOR:

1. Socas-Navarro, H., Elmore, D., Pietarila, A., Darnell, A., Lites, B.W., Tomczyk, S., Hegwer, S., 2006
Solar Physics, 235, 55-73
SPINOR: Visible and Infrared Spectro-Polarimetry at the National Solar Observatory