LM Ziurys,C Savage,MA Brewster et al.
LM Ziurys et al.
Observations of comet Hale-Bopp (C/1995 O1) have been carried out near perihelion (1997 March) at millimeter wavelengths using the NRAO 12 m telescope. The J=1-->0, 2-->1, and 3-->2 lines of HCN at 88, 177, and 265 GHz were measured in the ...
P Dmitruk,DO Gómez
P Dmitruk
We report preliminary results from a series of numerical simulations of the reduced magnetohydrodynamic equations used to describe the dynamics of magnetic loops in active regions of the solar corona. A stationary velocity field is applied ...
Large-Scale Mapping Observations of the C i (3P1-3P0) and CO (J = 3-2) Lines toward the Orion A Molecular Cloud [0.03%]
猎户A星云中性碳和一氧化碳的分布与物理化学性质研究
M Ikeda,H Maezawa,T Ito et al.
M Ikeda et al.
Large-scale mapping observations of the 3P1-3P0 fine-structure transition of atomic carbon (C i, 492 GHz) and the J=3-2 transition of CO (346 GHz) toward the Orion A molecular cloud have been carried out with the Mount Fuji submillimeter-wa...
Superhumps in a Peculiar SU Ursae Majoris-Type Dwarf Nova, ER Ursae Majoris [0.03%]
怪异的SU Ursae Majoris型小Nova ER大熊座中的超凸包
W Gao,Z Li,X Wu et al.
W Gao et al.
We report the photometry of a peculiar SU Ursae Majoris-type dwarf nova, ER Ursae Majoris, for 10 nights during 1998 December and 1999 March, covering a complete rise to the supermaximum and a normal outburst cycle. Superhumps have been fou...
XD Li,S Ray,J Dey et al.
XD Li et al.
The discovery of kilohertz quasi-periodic oscillations (kHz QPOs) in low-mass X-ray binaries (LMXBs) with the Rossi X-Ray Timing Explorer has stimulated extensive studies of these sources. Recently, Osherovich & Titarchuk suggested a new mo...
PM Woods,C Kouveliotou,van Paradijs J et al.
PM Woods et al.
We present evidence for burst emission from SGR 1900+14 with a power-law high-energy spectrum extending beyond 500 keV. Unlike previous detections of high-energy photons during bursts from soft gamma repeaters (SGRs), these emissions are no...
Supranova Events from Spun-up Neutron Stars: An Explosion in Search of an Observation [0.03%]
高转动中子星的超新星事件：一场寻找观测支持的爆炸现象
M Vietri,L Stella
M Vietri
We consider a formation scenario for supramassive neutron stars (SMNSs) that takes place through mass and angular momentum transfer from a close companion during a low-mass X-ray binary phase, with the ensuing suppression of the magnetic fi...
H Janka,T Eberl,M Ruffert et al.
H Janka et al.
Hydrodynamic simulations of the merger of stellar mass black hole-neutron star binaries are compared with mergers of binary neutron stars. The simulations are Newtonian but take into account the emission and back-reaction of gravitational w...
S Heinz,MC Begelman
S Heinz
We propose that gamma-ray bursts (GRBs) are produced by a shower of heavy blobs running into circumstellar material at highly relativistic speeds. The gamma-ray emission is produced in the shocks these bullets drive into the surrounding med...
Cooling Flow Star Formation and the Apparent Stellar Ages of Elliptical Galaxies [0.03%]
冷却流恒星形成以及椭圆星团中恒星的表观年龄问题
WG Mathews,F Brighenti
WG Mathews
Simple theoretical arguments indicate that cooled interstellar gas in bright elliptical galaxies forms into a young stellar population having a bottom-heavy but optically luminous initial mass function extending to approximately 2 M middle ...