OSSERVATORIO ASTRONOMICO DI PALERMO GIUSEPPE S. VAIANA

ATTIVITA` SCIENTIFICA

Palermo Astronomy Preprints

1998


    1. ROSAT PSPC Observation of the NE Region of the Vela SNR. III: The Two-Component Nature of the X-ray Emission and its implications on the ISM
      F. Bocchino, A. Maggio, S. Sciortino, Astronomy and Astrophysics, in press (Preprint N. /98).
    2. X-ray Source Detection in Epic Images using Wavelet Transforms
      F. Damiani, A. Maggio, G. Micela, S. Sciortino, in Proceedings of the First XMM Workshop, "Science with XMM"
      (held in ESA/ESTEC, Noordwijk, NL, Sept. 30 - Oct. 2 1998) (Preprint N. 12/98).
    3. The Nature of the Shell Type SNR X-ray Emission
      F. Bocchino, A. Maggio, S. Sciortino, F. Reale, in Proceedings of the First XMM Workshop, "Science with XMM"
      (held in ESA/ESTEC, Noordwijk, NL, Sept. 30 - Oct. 2 1998) (Preprint N. 12/98).
    4. Plasma thermal structure and metallicity of stellar coronae observed with XMM/EPIC
      A. Maggio, S. Orlando, F. Favata,
      G. Micela , G. Peres, S. Sciortino, in Proceedings of the First XMM Workshop, "Science with XMM"
      (held in ESA/ESTEC, Noordwijk, NL, Sept. 30 - Oct. 2 1998) (Preprint N. 12/98).
    5. X-ray Spectroscopy of the active dM stars: AD Leo and EV Lac
      S. Sciortino, A. Maggio, F. Favata, S. Orlando, 1998, A&A, in press (Preprint N. 11/98).
    6. Analysis and comparison of loop structures imaged with NIXT and Yohkoh/SXT, V. Di Matteo, F. Reale, G. Peres, L. Golub, A&A, in press (Preprint N. 10/98)
    7. Effects on UV Line Observations of plasma flows confined in coronal loops,
      S. Orlando, G. Peres, 1998, Physics and Chemistry of the Earth, in press
    8. Deep ROSAT HRI observations of the Pleiades -- TAB. 2
      G. Micela
      S. Sciortino, F. R. Harnden Jr., Kashyap V., Rosner R. Prosser C. F., Damiani F., Stauffer J. Caillault J.-P., A&A in press (Preprint N. 8/98).
    9. X-ray Emission, Stellar Populations and Determination of IMF S. Sciortino, G. Micela. F. Damiani, E. Flaccomio, F. Favata to apper in Proceedings of the meeting "Evolving Evolution", Carloforte, May 1998 -
    10. X-ray spectroscopy of the weak-lined T Tauri star HD 283572 F. Favata, G. Micela, S. Sciortino, 1998, A&A, 337, 413
    11. Physics of Coronal Loops, F. Reale, to appear in Memorie SAIt (Preprint N. 7/98).
    12. Loop Modeling of Coronal X-ray Spectra. V. One- and Two-loop model fitting of G-type star ROSAT/PSPC spectra .
      R. Ventura, A. Maggio, G. Peres to appear in Astronomy and Astrophysics (Preprint N. 6/98)
    13. The evolutionary status of activity-selected solar-type stars and of T-Tauri stars as derived from Hipparcos parallaxes: evidence for long-lived T-Tauri disks? . F. Favata, G. Micela, S. Sciortino, F. D'Antona to appear in Astronomy and Astrophysics (ESA Preprint N. X/98)
    14. Determination of the length of coronal loops from the decay of X-ray flares - II. Stellar flares observed with ROSAT/PSPC. F. Reale, G. Micela to appear in Astronomy and Astrophysics (Preprint N. 5/98)
    15. A Deep X-ray Survey of the PMS Population of the Upper Sco-Cen Association S. Sciortino, F. Damiani, G. Micela, F. Favata Proc. of The Non-Sleeping Universe, Porto, 24-26 Nov. 1997 (Preprint N. 4/98).
    16. BeppoSAX and ROSAT Observations of the Supernova Remnant RCW86 F. Bocchino, F. Favata, A. Maggio and S. Sciortino, Proc. of The Active X-Ray Sky, Roma, 21-24 October 1997 (Preprint N. 4/98).
    17. X-Ray Variability and Rotation in the Pleiades Cluster G. Micela, S. Sciortino,F.R. Harnden Jr, and R. Rosner Proc. of The Non-Sleeping Universe, Porto, 24-26 Nov. 1997 (Preprint N. 4/98).
    18. An Optimized Time Screening Algorithm for ROSAT PSPC and HRI Observations. F. Bocchino, M. Barbera and S. Sciortino, Astronomy and Astrophysics, in press (Preprint N. 3/98).
    19. X-Ray and Optical Observations of the Star Forming Region NGC 2264 . E. Flaccomio, S. Sciortino, G. Micela, F. Damiani, F. Favata, C. Corbally, A. Tomaney, F.R. Harnden Jr., J. Schachter, Proc. of "Cool Stars in Clusters and Associations: Magnetic Activity and Age Indicators, 20-23 May 1997, Palermo, G. Micela, R. Pallavicini, S. Sciortino eds., MemSAIt, in press (Preprint N. 2/98)
    20. X-Ray Observations of the Young Open Cluster zeta Sculptoris . G. Micela, S. Sciortino, F. Favata, R. Pallavicini, J. Pye, Proc. of "Cool Stars in Clusters and Associations: Magnetic Activity and Age Indicators, 20-23 May 1997, Palermo, G. Micela, R. Pallavicini, S. Sciortino eds., MemSAIt, in press (Preprint N. 2/98)
    21. Evolutionary Status of High-Lithium, High Activity Cool Dwarfs . F. Favata, G. Micela, S. Sciortino, F. D'Antona, Proc. of "Cool Stars in Clusters and Associations: Magnetic Activity and Age Indicators, 20-23 May 1997, Palermo, G. Micela, R. Pallavicini, S. Sciortino eds., MemSAIt, in press (Preprint N. 2/98)
    22. X-Ray Emitting PMS Stars in Upper Sco-Cen: the X-Ray Faint Population . F. Favata, S. Sciortino, F. Damiani, G. Micela, Proc. of "Cool Stars in Clusters and Associations: Magnetic Activity and Age Indicators, 20-23 May 1997, Palermo, G. Micela, R. Pallavicini, S. Sciortino eds., MemSAIt, in press (Preprint N. 2/98)
    23. Lithium in Solar-Type Stars of the Old Open Cluster M67 . R. Pallavicini, L. Pasquini, S. Randich, Proc. of "Cool Stars in Clusters and Associations: Magnetic Activity and Age Indicators, 20-23 May 1997, Palermo, G. Micela, R. Pallavicini, S. Sciortino eds., MemSAIt, in press (Preprint N. 2/98)
    24. Stellar Flaring Loops . F. Reale, G. Micela, G. Peres, R. Betta, S. Serio, Proc. of "Cool Stars in Clusters and Associations: Magnetic Activity and Age Indicators, 20-23 May 1997, Palermo, G. Micela, R. Pallavicini, S. Sciortino eds., MemSAIt, in press (Preprint N. 2/98)
    25. Loop Modeling of X-ray Coronae: Solar-Type Stars in Young Clusters and Associations .
      A. Maggio, G. Micela, G. Peres, Proc. of "Cool Stars in Clusters and Associations: Magnetic Activity and Age Indicators, 20-23 May 1997, Palermo, G. Micela, R. Pallavicini, S. Sciortino eds., MemSAIt, in press (Preprint N. 2/98)
    26. Proper Motions and Photographic Photometry in the Field of the Southern Open Cluster NGC 2516 . F. Morale, G. Massone, M. Lattanzi, Proc. of "Cool Stars in Clusters and Associations: Magnetic Activity and Age Indicators, 20-23 May 1997, Palermo, G. Micela, R. Pallavicini, S. Sciortino eds., MemSAIt, in press (Preprint N. 2/98)
    27. A ROSAT Deep Survey of the Galactic Plane 180degree < l < 280degree . J. Pye, J. E. Morley, R. S. Warwick, J. Pilkington,, G. Micela, S. Sciortino, F. Favata, Proc. of "Cool Stars in Clusters and Associations: Magnetic Activity and Age Indicators, 20-23 May 1997, Palermo, G. Micela, R. Pallavicini, S. Sciortino eds., MemSAIt, in press (Preprint N. 2/98)
    28. High Densities and Low Filling Factor . G. Peres, Proc. of "High resolution solar atmospheric dynamics workshop", 3-4 June 1997 , Gloucester (MA), USA, J. Bookbinder, E. De Luca, eds., Pubblications of Astronomical Society of Pacific, in press (Preprint N. 1/98)
    29. Hydrodynamic modeling of coronal plasma and comparison with observations . F. Reale, G. Peres, R. Betta Proc. of "High resolution solar atmospheric dynamics workshop", 3-4 June 1997, Gloucester (MA), USA J. Bookbinder, E. De Luca, eds., Pubblications of Astronomical Society of Pacific, in press (Preprint N. 1/98)