搜索结果: 1-11 共查到“空间天文学 Optical”相关记录11条 . 查询时间(0.187 秒)
The optical/UV excess of isolated neutron stars in the RCS model
pulsars: individual RX J1308.6+2127 stars:neutron
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2011/9/28
The X-ray dim isolated neutron stars (XDINSs) are peculiar pulsar-like objects, characterized by their very well Planck-like spectrum. In studying their spectral energy distributions, the optical/UV e...
Optical Spectroscopic ATLAS of the MOJAVE/2cm AGN Sample (1)
Max-Planck/Institut fur Radioastronomie Bonn Germany
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2011/10/10
We present an optical spectroscopic atlas at intermediate resolution (8-15A) for 123 core-dominated radio-loud active galactic nuclei with relativistic jets, drawn from the MOJAVE/2cm sample at 15GHz....
The relation of optical/UV and X-ray emission in low-luminosity active galactic nuclei
relation optical/UV X-ray emission low-luminosity active galactic nuclei
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2011/10/9
We study the relation of optical/UV and X-ray emission in the low luminosity active galactic nuclei (LLAGNs), using a sample of 49 sources including 28 local Seyfert galaxies and 21 low-ionization nuc...
Multiwavelength campaign on Mrk 509. IV. Optical-UV-X-ray variability and the nature of the soft X-ray excess
galaxies: active – galaxies: nuclei – galaxies: Seyfert – quasars: individual: Mrk 509 – X-rays: galaxies
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2011/9/27
We present the analysis of XMM-Newton and Swift optical-UV and X-ray observations of the Seyfert-1/QSO Mrk 509, part of an unprecedented multi-wavelength campaign, investigating the nuclear environmen...
Discovering the missing 2.2optical variability and optical/near-IR colors
Discovering missing quasars combining variability optical/near-IR colors
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2011/9/27
The identifications of quasars in the redshift range 2.2icient as their optical colors are indistinguishable from those of stars. Recent studies have proposed to use opt...
AGN Surveys via Optical Variability, X-ray, and mid-IR Detection in HST Fields
X-ray HST Fields mid-IR Detection
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2009/7/9
AGN Surveys via Optical Variability, X-ray, and mid-IR Detection in HST Fields。
OTELO：optical data for X-ray sources in the groth strip
optical data groth strip X-ray sources
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2009/7/1
OTELO：optical data for X-ray sources in the groth strip。
Optical and near IR galaxy number counts in the GOYA survey. The ages of ellipticals
GOYA survey Optical IR galaxy
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2009/7/1
Optical and near IR galaxy number counts in the GOYA survey. The ages of ellipticals。
Optical variability of infrared power law-selected galaxies & X-ray sources in the goods-south field
X-ray sources infrared power
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2009/7/1
Optical variability of infrared power law-selected galaxies & X-ray sources in the goods-south field。
Am cvn systems as optical, x-ray and gwr sources
Am cvn systems optical x-ray gwr sources
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2009/6/17
Am cvn systems as optical, x-ray and gwr sources。
The Optical and Near-Infrared Counterpart of IRAS 18476+2054
Near-Infrared The Optical IRAS 18476+2054
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2009/6/16
The Optical and Near-Infrared Counterpart of IRAS 18476+2054。