Abstract
A number of X-ray instruments have been active in observing the solar coronal X-ray radiation this decade. We have compared XSM observations with simultaneous GOES and RHESSI observations. We present flux calibrations for all instruments and compare XSM and GOES total emission measures (TEM) and temperatures (T).
The model-independent flux comparison with XSM and GOES data in the 1 – 8 Å band shows that the fluxes agree with a ratio of 0.94±0.09 for the data up to April 2005. The Mewe model-dependent Ts and TEMs differ as XSM observes 1.47±0.03 times higher Ts than GOES and 1.23±0.08 times higher TEMs and 0.92±0.05 times lower fluxes. The comparison with RHESSI data in the 6 – 8 keV band shows that the average XSM/RHESSI flux ratio is 2.63±0.23. The discrepancies revealed in this study are similar to discrepancies observed in a number of other spaceborne cross-calibration studies.
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Alha, L., Huovelin, J., Hackman, T., Andersson, H., Howe, C.J., Esko, E., Väänänen, M.K.: 2008, The in-flight performance of the X-ray Solar Monitor (XSM) on-board SMART-1. Nucl. Instrum. Methods 596, 317.
Arnaud, K.A.: 1996, XSPEC: The first ten years. In: Jacoby, G.H., Barnes, J. (eds.) Astronomical Data Analysis Software and Systems V CS-100, Astron. Soc. Pac., San Francisco, 17.
Boggess, N.W., Mather, J.C., Weiss, R., Bennett, C.L., Cheng, E.S., Dwek, E., Gulkis, S., Hauser, M.G., Janssen, M.A., Kelsall, T., et al.: 1992, The COBE mission: Its design and performance two years after launch. Astrophys. J. 397, 420.
Brooks, D.H., Warren, H.P.: 2006, The intercalibration of SOHO EIT, CDS-NIS, and TRACE. Astrophys. J. 164, 202.
Dere, K.P., Landi, E., Mason, H.E., Monsignori Fossi, B.C., Young, P.R.: 1997, CHIANTI – an atomic database for emission lines. Astron. Astrophys. Suppl. Ser. 125, 149.
Domingo, V., Fleck, B., Poland, A.I.: 1995, The SOHO mission: An overview. Solar Phys. 162, 1.
Foing, B.H., Racca, G.D., Marini, A., Heather, D.J., Koschny, D., Grande, M., Huovelin, J., Keller, H.U., Nathues, A., Josset, J.L., et al.: 2003, SMART-1 mission to the Moon: Technology and science goals. Adv. Space Res. 31(11), 2323.
Freeland, S.L., Handy, B.N.: 1998, Data analysis with the SolarSoft system. Solar Phys. 182(2), 497.
Handy, B.N., Acton, L.W., Kankelborg, C.C., Wolfson, C.J., Akin, D.J., Bruner, M.E., Caravalho, R., Catura, R.C., Chevalier, R., Duncan, D.W., et al.: 1999, The transition region and coronal explorer. Solar Phys. 187, 229.
Hog, E., Fabricius, C., Makarov, V.V., Urban, S., Corbin, T., Wycoff, G., Bastian, U., Schwekendiek, P., Wicenec, A., et al.: 2000, The Tycho-2 catalogue of the 2.5 million brightest stars. Astron. Astrophys. 355, 27.
Huovelin, J., Alha, L., Andersson, H., Andersson, T., Browning, R., Drummond, D., Foing, B., Grande, M., Hämäläinen, K., Laukkanen, J., et al.: 2002, The SMART-1 X-ray solar monitor (XSM): Calibrations for D-CIXS and independent coronal science. Planet. Space Sci. 50, 1345.
Jansen, F., Lumb, D., Altieri, B., Clavel, J., Ehle, M., Erd, C., Gabriel, C., Guainazzi, M., Gondoin, P., Much, R., et al.: 2001, XMM-Newton observatory. I. The spacecraft and operations. Astron. Astrophys. 365, 1.
Kessler, M.F., Steinz, J.A., Anderegg, M.E., Clavel, J., Drechsel, G., Estaria, P., Faelker, J., Riedinger, J.R., Robson, A., Taylor, B.G., de Ferran, X.S.: 1996, The Infrared Space Observatory (ISO) mission. Astron. Astrophys. 315, 27.
Kirsch, M.G.F., Altieri, B., Chen, B., Haberl, F., Metcalfe, L., Pollock, A.M.T., Read, A.M., Saxton, R.D., Sembay, S., Smith, M.J.S.: 2004, XMM-Newton (cross)-calibration. SPIE 5488, 103.
Landi, E., Del Zanna, G., Young, P.R., Dere, K.P., Mason, H.M., Landini, M.: 2006, CHIANTI – an atomic database for emission lines. VII. New data for X-rays and other improvements. Astrophys. J. Suppl. Ser. 162, 261.
Laukkanen, J., Lämsä, V., Salminen, A., Huovelin, J., Andersson, H., Alha, L., Hämäläinen, K., Nenonen, S., Sipilä, H., Tillander, M.: 2005, Radiation hardness studies for the X-ray solar monitor (XSM) onboard the ESA SMART-1 mission. Nucl. Instrum. Methods Phys. Res. Sect. A 538(1 – 3), 496.
Lemke, D., Klaas, U., Abolins, J., Abraham, P., Acosta-Pulido, J., Bogun, S., Castaneda, H., Cornwall, L., Drury, L., Gabriel, C., et al.: 1996, ISOPHOT – capabilities and performance. Astron. Astrophys. 315, 64.
Lin, R.P., Dennis, B.R., Hurford, G.J., Smith, D.M., Zehnder, A., Harvey, P.R., Curtis, D.W., Pankow, D., Turin, P., Bester, M., et al.: 2002, The Reuven Ramaty High-Energy Solar Spectroscopic Imager (RHESSI). Solar Phys. 210, 3.
Lubinski, P., Dubath, P., Kretschmar, P., Pottschmidt, K., Walker, R.: 2004, Integral cross-calibration status. In: Proc. 5th INTEGRAL Science Workshop SP-552, ESA, Noordwijk, 871.
Maiz-Apellaniz, J.: 2005, A cross-calibration between Tycho-2 photometry and hubble space telescope spectrophotometry. Publ. Astron. Soc. Pac. 117, 615.
Mewe, R., Gronenschild, E.H.B.M., van den Oord, G.H.J.: 1985, Calculated X-radiation from optically thin plasmas. Astron. Astrophys. Suppl. Ser. 62, 197.
Meyer, J.P.: 1985, Solar-stellar outer atmospheres and energetic particles, and galactic cosmic rays. Astrophys. J. Suppl. Ser. 57, 173.
Pauluhn, A., Lang, J., Schühle, U., Solanki, S.K., Wilhelm, K., Pike, C.D., Thompson, W.T., Rüedi, I., Hollandt, J., Huber, M.C.E.: 2002, Intercalibration of CDS and SUMER. In: Proc. SOHO 11 Symposium, From Solar Min to Max:Half a Solar Cycle with SOHO SP-508, ESA, Noordwijk, 223.
Raymond, J.C., Smith, B.W.: 1977, Soft X-ray spectrum of a hot plasma. Astrophys. J. Suppl. Ser. 35, 419.
Serra, G., Giard, M., Bouchou, F., Dupac, X., Gabarrot, F., Meny, C., Ristorcelli, I., Lamarre, J.M., Bernard, J.P., Pajot, F., et al.: 2002, PRONAOS: Two meter submillimeter balloon borne telescope. Adv. Space Res. 30, 1297.
Smith, D.M., Lin, R.P., Turin, P., Curtis, D.W., Primbsch, J.H., Campbell, R.D., Abiad, R., Schroeder, P., Cork, C.P., Hull, E.L., et al.: 2002, The RHESSI spectrometer. Solar Phys. 210, 33.
Stepnik, B., Pajot, F., Lamarre, J.-M., Abergel, A., Bernard, J.-P., Giard, M., Meny, C., Ristorcelli, I., Serra, G., Torre, J.-P.: 2003, Cross-calibration of PRONAOS and ISO. In: Metcalfe, L., Salma, A., Peschke, S.B., Kessler, M.F. (eds.) Proceedings The Calibration Legacy of the ISO Mission SP-481, ESA, Noordwijk, 187.
Thomas, R.J., Crannell, C.J., Starr, R.: 1985, Expressions to determine temperatures and emission measures for solar X-ray events from GOES measurements. Solar Phys. 95, 323.
Turnshek, D.A., Bohlin, R.C., Williamson, R.L. II, Lupie, O.L., Koornneef, J., Morgan, D.H.: 1990, An atlas of hubble space telescope photometric, spectrophotometric, and polarimetric calibration objects. Astron. J. 99, 1243.
White, S.M., Thomas, R.J., Schwartz, R.A.: 2005, Updated expressions for determining temperatures and emission measures from GOES soft X-ray measurements. Solar Phys. 227, 231.
Winkler, C., Courvoisier, T.J.-L., Di Cocco, G., Gehrels, N., Gimenez, A., Grebenev, S., Hermsen, W., Mas-Hesse, J.M., Lebrun, F., Lund, N., et al.: 2003, The INTEGRAL mission. Astron. Astrophys. 411, 1.
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Väänänen, M., Alha, L. & Huovelin, J. Cross-Calibration of SMART-1 XSM with GOES and RHESSI. Sol Phys 260, 479–488 (2009). https://doi.org/10.1007/s11207-009-9461-3
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DOI: https://doi.org/10.1007/s11207-009-9461-3