搜索结果: 1-15 共查到“理学 X-ray source”相关记录18条 . 查询时间(0.136 秒)
Ultraluminous X-ray source 1E 0953.8+6918 (M81 X-9): an intermediate-mass black hole candidate and its environs
binaries bubbles
font style='font-size:12px;'>
2014/12/26
We present a ROSAT and ASCA study of the Einstein source X-9 and its relation to a shock-heated shell-like optical nebula in a tidal arm of the M81 group of interacting galaxies. Our ASCA observation ...
Correction for the Flux Measurement Bias in X-Ray Source Detection
Abell 2125 NGC 4594
font style='font-size:12px;'>
2014/12/24
With a high spatial resolution imaging instrument such as the Chandra ACIS, one can confidently identify an X-ray source with only a few detected counts. The detection threshold of such sources, howev...
VLA and XMM-Newton Observations of the SNR W41/TeV Gamma-Ray Source HESS J1834–087
W41 HESS
font style='font-size:12px;'>
2014/12/23
The recently discovered extended TeV source HESS J1834-087 is associated with both a diffuse X-ray enhancement and a molecular cloud, projected at the center of an old radio supernova remnant, G23.3-0...
CANGAROO-III observation of TeV gamma rays from the unidentified gamma-ray source HESS J1614-518
CANGAROO-III observation unidentified gamma-ray source HESS J1614-518
font style='font-size:12px;'>
2011/10/12
We report the detection, with the CANGAROO-III imaging atmospheric Cherenkov telescope array, of a very high energy gamma-ray signal from the unidentified gamma-ray source HESS J1614-518, which was di...
Swift monitoring of the central X-ray source in RCW 103
pulsars: general – stars: neutron – X-rays: individual: 1E 161348–5055
font style='font-size:12px;'>
2011/10/11
The X-ray source 1E 161348-5055 lies at the centre of the 2-kyr-old supernova remnant RCW 103. Owing to its 24-ks modulation, orders-of-magnitude flux variability over a few months/years, and lack of ...
Large-scale radio nebula around the Ultra-Luminous X-ray Source IC 342 X-1
Large-scale radio nebula the Ultra-Luminous X-ray Source IC 342 X-1
font style='font-size:12px;'>
2011/1/10
We present discovery of a radio nebula associated with the ultraluminous X-ray source (ULX) IC 342 X-1 using the Very Large Array (VLA). Taking the surrounding nebula as a calorimeter, one can constra...
Discovery and follow-up studies of the extended, off-plane, VHE gamma-ray source HESS J1507-622
follow-up studies off-plane VHE gamma-ray source HESS J1507-622
font style='font-size:12px;'>
2011/1/10
Context: The detection of gamma-rays in the very-high-energy (VHE) range (100 GeV-100 TeV) offers the possibility of studying the parent population of ultrarelativistic particles found in astrophysica...
A Large Catalogue of Ultraluminous X-ray Source Candidates in Nearby Galaxies
X-rays binaries black hole physics
font style='font-size:12px;'>
2010/11/9
Since their discovery, Ultraluminous X-ray sources (ULXs) have attracted attention due to their combination of extreme luminosities and extra-nuclear locations. However, they are a fairly rare phenome...
Optical variability of the ultraluminous X-ray source NGC 1313 X-2
stars individual (NGC 1313 X-2) – X-rays binaries – X-rays individuals (NGC 1313 X-2)
font style='font-size:12px;'>
2010/11/12
We analyzed the longest phase-connected photometric dataset available for NGC 1313 X-2,looking for the 6 day modulation reported by Liu et al. (2009). The folded B band light curve shows a 6 days per...
Exploring the Nature of the Brightest Hyper-luminous X-ray Source
accretion accretion disks – X-rays binaries – X-rays individual (ESO 243-49 HLX-1)
font style='font-size:12px;'>
2010/11/11
The small subset of hyper-luminous X-ray sources with luminosities in excess of 1041 erg s−1 are hard to explain without the presence of an intermediate mass black hole, as significantly super-...
Compact X-ray source could rival accelerators（图）
X-ray source accelerators
font style='font-size:12px;'>
2010/12/1
A compact source of high-quality X-ray pulses has been unveiled by an international team of researchers. The group claims that the source – which is contained in a vacuum chamber about 1 m3 – produces...
A Simple Xray Spectrometer and PCbased Data Acquisition System for Newly Developed Xray Source Based on Laser Compton Scattering
laser Compton scattering Si(Li) detector energy resolustion
font style='font-size:12px;'>
2009/10/28
A simple Xray spectrometer and a PCBased Data Acquisition System(DAS) have been developed newly in Shanghai Institute of Applied Physics(SINAP), Chinese Academy of Sciences(CA...
In Search of a Radio Counterpart for the Ultraluminous X-Ray Source at the Nucleus of M33
Radio Counterpart Nucleus of M33 Ultraluminous X-Ray
font style='font-size:12px;'>
2009/6/18
In Search of a Radio Counterpart for the Ultraluminous X-Ray Source at the Nucleus of M33。
Chandra monitoring observation of the antennae Galaxies：the x-ray source populations and the shape of Their luminosity function
antennae Galaxies luminosity function x-ray source
font style='font-size:12px;'>
2009/6/17
Chandra monitoring observation of the antennae Galaxies：the x-ray source populations and the shape of Their luminosity function。
A new interpretation of the low radial velocity Determined from the heii emission line in the galactic Supersoft x-ray source rx j0019.8+2156
low radial velocity Supersoft x-ray heii emission line rx j0019.8+2156
font style='font-size:12px;'>
2009/6/17
A new interpretation of the low radial velocity Determined from the heii emission line in the galactic Supersoft x-ray source rx j0019.8+2156。