D Buzasi,J Catanzarite,R Laher et al.
D Buzasi et al.
We have used the star camera on the Wide-Field Infrared Explorer satellite to observe the K0 III star alpha UMa, and we report the apparent detection of 10 oscillation modes. The lowest frequency mode is at 1.82 µHz, and it appears to be t...
The RR Lyrae Star U Comae as a Test for Nonlinear Pulsation Models [0.03%]
非线性脉动模型检验中的RR Lyrae星U Comaelocking
G Bono,V Castellani V,M Marconi
G Bono
We use high-precision multiband photometric data of the first-overtone RR Lyrae star U Comae to investigate the predictive capability of full-amplitude, nonlinear, convective hydrodynamical models. The main outcome of this investigation is ...
A Feldmeier,I Shlosman I
A Feldmeier
Line-driven winds from hot stars and accretion disks are thought to follow a unique, critical solution that corresponds to a maximum mass-loss rate and a particular velocity law. We show that in the presence of negative velocity gradients, ...
E Göğüş,PM Woods,C Kouveliotou et al.
E Göğüş et al.
We present statistics of SGR 1806-20 bursts, combining 290 events detected with the Rossi X-Ray Timing Explorer/Proportional Counter Array, 111 events detected with the Burst and Transient Source Experiment, and 134 events detected with the...
A Spatially Resolved Plerionic X-Ray Nebula around PSR B0540-69 [0.03%]
脉冲星B0540-69周围的弥散X射线 nebula 的空间分辨分布
EV Gotthelf,QD Wang
EV Gotthelf
We present a high-resolution Chandra X-ray observation of PSR B0540-69, the Crab-like 50 ms pulsar in the Large Magellanic Cloud. We use phase-resolved imaging to decompose the extended X-ray emission, as expected of a synchrotron nebula, f...
DA Buote
DA Buote
The inhomogeneous cooling flow scenario predicts the existence of large quantities of gas in massive elliptical galaxies, groups, and clusters that have cooled and dropped out of the flow. Using spatially resolved, deprojected X-ray spectra...
JL Turner,SC Beck,PT Ho
JL Turner
We present 1.3 cm and 2 cm subarcsecond resolution VLA images of the dwarf galaxy NGC 5253. Within the central starburst, we detect high-brightness [Tb&parl0;2 cm&parr0; approximately 100-12,000 K] radio continuum sources. These appear to b...
DJ Burke,CA Collins,RG Mann
DJ Burke
The K-band Hubble diagram of brightest cluster galaxies (BCGs) is presented for a large, X-ray-selected cluster sample extending out to z=0.8. The controversy over the degree of BCG evolution is shown to be due to sample selection since the...
Resolved Spectroscopy of the Narrow-Line Region in NGC 1068: Kinematics of the Ionized Gas [0.03%]
NGC 1068窄线区域的解析光谱：电离气体的动力学
DM Crenshaw,SB Kraemer
DM Crenshaw
We have determined the radial velocities of the [O iii]-emitting gas in the inner narrow-line region of the Seyfert 2 galaxy NGC 1068, along a slit at position angle 202 degrees, from STIS observations at a spatial resolution of 0&farcs;1 a...
CL Carilli,GB Taylor
CL Carilli
Images of neutral hydrogen 21 cm absorption and radio continuum emission at 1.4 GHz from Mrk 273 were made using the Very Long Baseline Array and Very Large Array. These images reveal a gas disk associated with the northern nuclear region w...