Coronal densities and temperatures for cool stars in different stages of activity

Advances in Space Research

Volumn 32, Issue 6, 2003, Pages 937-943

  Ness, J U ^a   Audard, M ^b   Schmitt, J H M M ^a   Gudel M ^c  

^a UNIVERSITY OF HAMBURG   (Germany)

^b Och Spine at New York Presbyterian Hospitals   (United States)

^c PAUL SCHERRER INSTITUTE   (Switzerland)

Author keywords

[No Author keywords available]

Indexed keywords

PLASMAS; SATELLITE OBSERVATORIES; SUPERFLUID HELIUM; X RAY ANALYSIS;

STELLAR CORONAE;

ASTRONOMY;

CORONA;

EID: 0242594512     PISSN: 02731177     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0273-1177(03)00295-3     Document Type: Article

References (33)

1. Acton, L.W., Radiative transfer of X-rays in the solar corona, Astrophys. J., 255, 1069-1075, 1978.
2. Audard, M., M. Güdel, and R. Mewe, The XMM-Newton view of stellar coronae: flare heating in the coronae of HR 1099, Astron. Astrophys., 365, L318-L323, 2001a.
3. Audard, M., E. Behar, M. Güdel, et al., The XMM-Newton view of stellar coronae: high-resolution X-ray spectroscopy of Capella, Astron. Astrophys., 365, L329-L335, 2001b.
4. Audard, M., M. Güdel, A. Sres, et al., A study of coronal abundances in RS CVn binaries, Astron. Astrophys., 398, 1137-1149, 2003.
5. Brinkman, A. C., E. Behar, M. Güdel, et al., First light measurements with the XMM-Newton reflection grating spectrometers: evidence for an inverse first ionisation potential effect and anomalous Ne abundance in the coronae of HR 1099, Astron. Astrophys., 365, L324-L328, 2001.
6. Brown, G. V., P. Beiersdorfer, H. Chen, et al., Diagnostic utility of the relative intensity of 3C to 3D in Fe XVII, Astrophys. J., 557, L75-L78, 2001.
7. Canizares, C. R., et al., High-resolution X-ray spectra of Capella: initial results from the Chandra High-Energy Transmission Grating Spectrometer, Astrophys. J., 539, L41-L44, 2000.
8. Dere, K. P., E. Landi, P. R. Young, and G. Del Zanna, CHIANTI-An atomic database for emission lines. IV. Extension to X-ray wavelengths, Astrophys. J. Suppl. Ser., 134, 331-354, 2001.
9. Drake, J. J., J. M. Laming, and K. G. Widing, Stellar coronal abundances. II: The first ionization potential effect and its absence in the corona of Procyon, Astrophys. J., 443, 393-415, 1995.
10. Drake, J.J., N. S. Brickhouse, V. Kashyap, et al., Enhanced noble gases in the coronae of active stars, Astrophys. J., 548, L81-L85, 2001.
11. Güdel, M., E. F. Guinan, and S. L. Skinner, The X-ray Sun in time: a study of the long-term evolution of coronae of solar-type stars, Astrophys. J., 483, 947-960, 1997.
12. Güdel, M., J. L. Linsky, A. Brown, and F. Nagase, Flaring and quiescent coronae of UX Arietis: results from ASCA and EUVE campaigns, Astrophys. J., 511, 405-421, 1999.
13. Güdel, M., M. Audard, K. Briggs, et al., The XMM-Newton view of stellar coronae: X-ray spectroscopy of the corona of AB Doradus, Astron. Astrophys., 365, L336-L343, 2001.
14. Kaastra, J. S., R. Mewe, D. A. Liedahl, et al., Emission measure analysis methods: the corona of AR Lacertae revisited, Astron. Astrophys., 314, 547-557, 1996.
15. Laming, J. M., I. Kink, E. Takacs, et al., Emission-line intensity ratios in Fe XVII observed with a microcalorimeter on an electron beam ion trap, Astrophys. J., 545, L161-164, 2000.
16. Linsky, J. L., A. Brown, K. Gayley, et al., Goddard high-resolution spectrograph observations of the local interstellar medium and the deuterium/hydrogen ratio along the line of sight toward Capella, Astrophys. J., 402, 694-709, 1993.
17. Maggio, A., R. Pallavicini, F. Reale, and G. Tagliaferri, Twin X-ray flares and the active corona of AB Dor observed with BeppoSAX, Astron. Astrophys., 356, 627-642, 2000.
18. Mewe, R., J. S. Kaastra, and D. A. Liedahl, Update of MEKA: MEKAL, Legacy, 6, 16, 1995.
19. Mewe, R., J. S. Kaastra, G. H. J. van den Oord, J. Vink, and Y. Tawara, ASCA and EUVE observations of II Pegasi: flaring and quiescent coronal emission, Astron. Astrophys., 320, 147-158, 1997.
20. Ness, J.-U., J. H. M. M. Schmitt, V.Burwitz, et al., Coronal density diagnostics with helium-like triplets: CHANDRA-LETGS observations of Algol, Capella, Procyon, epsilon Eri, alpha Cen A&B, UX Ari, AD Leo, YY Gem, and HR 1099, Astron. Astrophys., 394, 911-926, 2002.
21. Ness, J.-U., and R. Wichmann, CORA - emission line fitting with maximum likelihood, Astron. Nachr., 323, 129-134, 2002.
22. Ness, J.-U., N. S. Brickhouse, J. J. Drake, et al., Modelling the Ne IX triplet spectral region of Capella with the Chandra and XMM-Newton gratings, submitted to Astrophys. J., 2003a.
23. Ness, J.-U., J. H. M. M. Schmitt, M. Audard, et al., Are stellar coronae optically thin in X-rays?, submitted to Astron. Astrophys., 2003b.
24. Pallavicini, R., L. Golub, R. Rosner, et al., Relations among stellar X-ray emission observed from Einstein, stellar rotation and bolometric luminosity, Astrophys. J., 248, 279-290, 1981.
25. Saba, J. L. R., J. T. Schmelz, A. K. Bhatia, and K. T. Strong, Fe XVII soft X-ray lines: theory and data comparisons, Astrophys. J., 510, 1064-1077, 1999.
26. Schmitt, J. H. M. M., R. A. Stern, J. J. Drake, and M. Kürster, CF Tucanae: another case of coronal MAD syndrome?, Astrophys. J., 464, 898-909, 1996.
27. Schmitt, J. H. M. M., Coronae on solar-like stars, Astron. Astrophys., 318, 215-230, 1997.
28. Schmitt, J. H. M. M., A. Collura, S. Sciortino, et al., Einstein Observatory coronal temperatures of late-type stars, Astrophys. J., 365, 704-728, 1990.
29. Singh, K. P., S. A. Drake, N. E. White, and T. Simon, ROSAT observations of five chromospherically active stars, Astron. J., 112, 221-229, 1996.
30. Smith, R. K., N. S. Brickhouse, D. A. Liedahl, and J. C. Raymond, Collisional plasma models with APEC/APED: emission-line diagnostics of hydrogen-like and helium-like ions, Astrophys. J., 556, L91-L95, 2001.
31. Schrijver, C. J., R. Mewe, and F. M. Walter, Coronal activity in F-, G-, and K-type stars. II - Coronal structure and rotation', Astron. Astrophys., 138, 258-266, 1984.
32. Schrijver, C. J., G. H. J. van der Oord, and R. Mewe, The optical thickness of stellar coronae in EUV lines, Astron. Astrophys., 289, L23-L26, 1994.
33. Young, P. R., G. Del Zanna, E. Landi, et al., CHIANTI-an atomic database for emission lines. VI. Proton rates and other improvements, Astrophys. J. Suppl. Ser., 144, 135-152, 2003.