eta Carinae: Testing a Binary Orbit Model with the Hubble Space Telescope/Space Telescope Imaging Spectrograph [0.03%]
Eta 星际_carinae：用哈勃空间望远镜/空间望远镜成像光谱仪检测二元轨道模型
K Davidson,K Ishibashi,TR Gull et al.
K Davidson et al.
Ground-based spectroscopy of eta Car shows periodic changes in some emission-line wavelengths. These variations have been cited as strong evidence that this object is a 5.5 yr binary system and have been used to produce specific orbit model...
Does Turbulence in the Iron Convection Zone Cause the Massive Outbursts of eta Carinae? [0.03%]
铁对流区的湍流会引发Eta Carinae大爆发吗？
RB Stothers
RB Stothers
Taken at face value, the observed properties of the central object in eta Carinae suggest a very massive, hot main-sequence star, only slightly evolved. If this is so, the star's extraordinarily high steady rate of mass loss must dynamicall...
TR Geballe,F Najarro,DF Figer
TR Geballe
H- and K-band moderate-resolution and 4 µm high-resolution spectra have been obtained for FMM 362, a bright star in the Quintuplet Cluster near the Galactic center. The spectral features in these bands closely match those of the Pistol Sta...
Formation of Millisecond Pulsars with Heavy White Dwarf Companions: Extreme Mass Transfer on Subthermal Timescales [0.03%]
毫秒脉冲星与重白矮星伴星的形成：亚热时标的极端质量传输
TM Tauris,van Den Heuvel EP,GJ Savonije
TM Tauris
We have performed detailed numerical calculations of the nonconservative evolution of close X-ray binary systems with intermediate-mass (2.0-6.0 M middle dot in circle) donor stars and a 1.3 M middle dot in circle accreting neutron star. We...
TA Sigut,JD Landstreet,SL Shorlin
TA Sigut
Emission in the 4d-->4f transitions of Mn ii (multiplet 13, lambdalambda6122-6132), in the 4f-->6g transitions of P ii, and in lambda6149.5 of Hg ii has been detected in the spectrum of the helium-weak star 3 Centauri A (B5 III-IVp). Weaker...
EV Held,I Saviane I,Y Momany et al.
EV Held et al.
We report the discovery of a significant old population in the dwarf spheroidal (dSph) galaxy Leo I as a result of a wide-area search with the ESO New Technology Telescope. Studies of the stellar content of Local Group dwarf galaxies have s...
Chandra X-Ray Detection of the Radio Hot Spots of 3C 295 [0.03%]
钱德拉X射线观测冷却流量空洞群3C 295中的_radio hot spots
DE Harris,PE Nulsen,TJ Ponman et al.
DE Harris et al.
An observation of the radio galaxy 3C 295 during the calibration phase of the Chandra X-Ray Observatory reveals X-ray emission from the core of the galaxy, from each of the two prominent radio hot spots, and from the previously known cluste...
GT Birk,H Lesch
GT Birk
The extended nonthermal X-ray emission of extragalactic jets like Centaurus A can only be explained by in situ particle acceleration. The only energy source in the entire jet region is the magnetic field. Magnetic reconnection can convert t...
Comparing the Evolution of the Galaxy Disk Sizes with Cold Dark Matter Models: The Hubble Deep Field [0.03%]
用冷暗物质模型与哈勃深场恒星形成历史比较盘状星系尺寸的演化
E Giallongo,N Menci,F Poli et al.
E Giallongo et al.
The intrinsic sizes of the field galaxies with I-19) galaxies is skewed with respect to the CDM predictions, and an excess of small-size disks (Rd
Conversion of Neutron Stars to Strange Stars as the Central Engine of Gamma-Ray Bursts [0.03%]
中子星转换为奇异夸克星作为伽马射线暴的中心发动机
I Bombaci I,B Datta
I Bombaci I
We study the conversion of a neutron star to a strange star as a possible energy source for gamma-ray bursts. We use different recent models for the equation of state of neutron star matter and strange quark matter. We show that the total a...