搜索结果: 1-15 共查到“天体物理学 observed”相关记录15条 . 查询时间(0.023 秒)
Kneelike structure in the spectrum of the heavy component of cosmic rays observed with KASCADE-Grande
ultra-high energy cosmic rays KASCADE-Grande composition extensive air shower
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2011/10/20
We report the observation of a steepening in the cosmic ray energy spectrum of heavy primary particles at about $8 \times 10^{16}$ eV. This structure is also seen in the all-particle energy spectrum, ...
Estimates of Densities and Filling Factors from a Cooling Time Analysis of Solar Microflares Observed with RHESSI
Estimates Densities Filling Factors Solar Microflares
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2011/10/12
We use more than 4,500 microflares from the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) microflare data set (Christe et al., 2008, Ap. J., 677, 1385) to estimate electron densities a...
Global Distribution of Fe K alpha Lines in the Galactic Center Region Observed with the Suzaku Satellite
Galaxy: Center—Inter stellar medium— X-ray spectra
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2011/10/9
We have surveyed spatial profiles of the Fe K$\alpha$ lines in the Galactic center diffuse X-rays (GCDX), including the transient region from the GCDX to the Galactic ridge X-ray emission (GRXE), with...
Continuous upflows and sporadic downflows observed in active regions
Sun : corona – Sun: transition region – Sun : UV radiation
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2011/9/30
We present a study of the temporal evolution of coronal loops in active regions and its implications for the dynamics in coronal loops. We analyzed images of the Atmospheric Imaging Assembly (AIA) on ...
The Genesis of an Impulsive Coronal Mass Ejection observed at Ultra-High Cadence by AIA on SDO
Impulsive Coronal Ultra-High Cadence AIA on SDO
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2011/1/11
The study of fast, eruptive events in the low solar corona is one of the science objectives of the Atmospheric Imaging Assembly (AIA) imagers on the recently launched Solar Dynamics Observatory (SDO),...
Directional correlations between UHECRs and neutrinos observed with IceCube
Directional correlations neutrinos observed
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2010/11/10
Ultra-high energy cosmic rays (UHECR) above an energy threshold of tens of EeV might undergo only small deflections due to interstellar magnetic fields. Their arrival directions would then point to re...
The similarity of observed X-ray coronae associated with L* disc and elliptical galaxies
galaxies:formation – galaxies haloes – galaxies cooling flows – galaxies intergalactic intergalactic
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2010/11/12
The existence of hot, X-ray luminous gaseous coronae surrounding present day L? galaxies
is a generic prediction of galaxy formation theory in the cold dark matter cosmogony.
While extended X-ray em...
Hadronic- and electromagnetic cores of air-showers observed by hybrid experiments at high mountains
High Energy Astrophysical Phenomena (astro-ph.HE)
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2011/1/4
Characteristics of the high energy families (bundle of high energy e, gamma) and hadrons in the air-showers detected in the hybrid experiment together with emulsion chamber and AS-array at Mt.Chacalta...
Positron annihilation spectrum from the Galactic Centre region observed by SPI/INTEGRAL, revisited: annihilation in a cooling ISM?
High Energy Astrophysical Phenomena (astro-ph.HE)
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2010/12/24
We analyse SPI/INTEGRAL data on the 511 keV line from the Galactic Centre, accumulated over ~6 years of observations.
Multiwavelength modeling of TeV AGN observed by H.E.S.S.
Multiwavelength modeling H.E.S.S. TeV AGN
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2009/7/9
Multiwavelength modeling of TeV AGN observed by H.E.S.S.。
Predicted chemical evolution for spiral disks from their observed rotation curves
chemical evolution rotation curves spiral disks
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2009/6/25
Predicted chemical evolution for spiral disks from their observed rotation curves。
The new x-ray pulsar j1802.7 {2017 observed by bepposax
x-ray pulsar j1802.7 {2017 bepposax
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2009/6/17
The new x-ray pulsar j1802.7 {2017 observed by bepposax。
A new view of the supersoft x-ray source cal 87 observed With xmm-newton
supersoft x-ray source cal 87 xmm-newton
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2009/6/17
A new view of the supersoft x-ray source cal 87 observed With xmm-newton。
Physical Scenarios for Supersonic Gas Flows Observed in H II Regions
Supersonic Gas Flows H II Regions
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2009/6/16
Physical Scenarios for Supersonic Gas Flows Observed in H II Regions。
ECLIPSE OF JUPITER SATELLITE IO BY EUROPA ON APRIL 3,1991 OBSERVED AT BELGRADE OBSERVATORY
JUPITER SATELLITE ECLIPSE
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2009/4/21
ECLIPSE OF JUPITER SATELLITE IO BY EUROPA ON APRIL 3,1991 OBSERVED AT BELGRADE OBSERVATORY。