OSSERVATORIO ASTRONOMICO DI PALERMO GIUSEPPE S. VAIANA
ATTIVITA` SCIENTIFICA
Palermo Astronomy Preprints
1998
- 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).
- 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).
- 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).
- 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).
- 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).
- 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)
- 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
- 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).
- 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 -
- X-ray spectroscopy of the weak-lined T Tauri star HD
283572 F. Favata, G. Micela, S. Sciortino, 1998, A&A, 337, 413
- Physics of Coronal Loops, F.
Reale, to appear in Memorie SAIt (Preprint N. 7/98).
- 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)
- 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)
- 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)
- 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).
- 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).
- 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).
- 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).
- 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)
- 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)
- 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)
- 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)
- 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)
- 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)
- 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)
- 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)
- 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)
- 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)
- 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)