T Nakano,J Makino
T Nakano
In this Letter, we show that a massive black hole (MBH) that falls into the center of a galaxy on the dynamical timescale leaves a weak cusp (rho~r-1&solm0;2) around it, which is in good agreement with the recent observations of luminous el...
S Molendi,De Grandi S,R Fusco-Femiano et al.
S Molendi et al.
We present results from a BeppoSAX observation of the rich cluster Abell 2319. The broadband spectrum (2-50 keV) of the cluster can be adequately represented by an optically thin thermal emission model with a temperature of 9.6+/-0.3 keV an...
X-Rays from the Highly Polarized Broad Absorption Line QSO CSO 755 [0.03%]
CSO 755发出的强线偏振宽吸积盘类本质耀变体的X射线辐射
WN Brandt,A Comastri,SC Gallagher et al.
WN Brandt et al.
We present results from a BeppoSAX observation of the broad absorption line (BAL) QSO CSO 755, which was observed as part of our program to investigate the X-ray properties of highly polarized BAL QSOs. CSO 755 is clearly detected by the Be...
H Pérez-De-Tejada
H Pérez-De-Tejada
A discussion is presented to examine the role of viscous forces in the transport of solar wind momentum to the ionospheric plasma of weakly magnetized planets (Venus and Mars). Observational data are used to make a comparison of the Reynold...
R Cameron,I Sammis I
R Cameron
We examine the great (solar) flare of 1990 May 24 that occurred in active region NOAA 6063. The Big Bear Solar Observatory videomagnetograph Stokes V and I images show a change in the longitudinal field before and after the flare. Since the...
Relation between Flare-associated X-Ray Ejections and Coronal Mass Ejections [0.03%]
耀斑相关的X射线爆发与日冕物质抛射的关系
N Nitta,S Akiyama
N Nitta
In an attempt to identify the direct signatures of coronal mass ejections (CMEs) in soft X-ray wavelengths, we have searched for plasma ejections in Yohkoh soft X-ray telescope (SXT) images in a total of 17 limb flares, and compared the res...
AJ Weinberger,EE Becklin,G Schneider et al.
AJ Weinberger et al.
Coronagraphic imaging with the Near-Infrared Camera and Multiobject Spectrometer on the Hubble Space Telescope reveals a large, approximately 400 AU (4&arcsec;) radius, circumstellar disk around the Herbig Ae/Be star HD 141569. A reflected ...
CD Koresko,GA Blake,ME Brown et al.
CD Koresko et al.
We present an infrared imaging study of the low-mass pre-main-sequence binary system Haro 6-10. This system is one of a handful in which the optically visible primary has the characteristics of a normal T Tauri star, while the secondary is ...
H Heiselberg,M Hjorth-Jensen
H Heiselberg
Using the most recent realistic effective interactions for nuclear matter with a smooth extrapolation to high densities including causality, we constrain the equation of state and calculate maximum masses of rotating neutron stars. First- a...
B Chaboyer,P Demarque,DB Guenther
B Chaboyer
A grid of stellar evolution models for Procyon A has been calculated. These models include the best physics available to us (including the latest opacities and equation of state) and are based on the revised astrometric mass of Girard et al...