搜索结果: 1-15 共查到“空间天文学 AGN”相关记录15条 . 查询时间(0.059 秒)
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....
Intrinsic disc emission and the Soft X-ray Excess in AGN
X-rays: accretion discs black hole physics
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2011/10/18
Narrow Line Seyfert 1 (NLS1) galaxies have low mass black holes and mass accretion rates close to (or exceeding) Eddington, so a standard blackbody accretion disc should peak in the EUV. However, the ...
Average Heating Rate of Hot Atmospheres in Distant Clusters by Radio AGN: Evidence for Continuous AGN Heating
Average Heating Atmospheres Distant Clusters Evidence Continuous Heating
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2011/10/9
We examine atmospheric heating by radio active galactic nuclei (AGN) in distant X-ray clusters by cross correlating clusters selected from the 400 Square Degree (400SD) X-ray Cluster survey with radio...
From the Blazar Sequence to the Blazar Envelope: Revisiting the Relativistic Jet Dichotomy in Radio-loud AGN
Blazar Envelope Revisiting Relativistic Jet Dichotomy Radio-loud AGN
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2011/10/21
We revisit the concept of a blazar sequence that relates the synchrotron peak frequency ({\nu}peak) in blazars with synchrotron peak luminosity (Lpeak, in {\nu}L{\nu}) using a large sample of radio-lo...
Narrow-line Seyfert 1 galaxies: an amasing class of AGN
Masers – Galaxies: active – Galaxies: nuclei – Galaxies: Seyfert – Radio lines: galaxies
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2011/10/21
Narrow-line Seyfert 1 (NLS1) galaxies are a class of active galactic nuclei (AGN) that have all the properties of type 1 Seyfert galaxies but show peculiar characteristics, including the narrowest Bal...
Host Galaxy Properties of the Swift BAT Ultra Hard X-ray Selected AGN
Galaxy Properties Swift Hard X-ray Selected AGN
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2011/9/29
We have assembled the largest sample of ultra hard X-ray selected (14-195 keV) AGN with host galaxy optical data to date, with 185 nearby (z<0.05), moderate luminosity AGN from the Swift BAT sample. T...
X-ray Eclipse of the AGN in NGC 1365: Measuring the Source Size
X-ray Eclipse NGC 1365 Source Size
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2009/7/9
X-ray Eclipse of the AGN in NGC 1365: Measuring the Source Size。
A Near-infrared view of the Narrow Line Region of AGN
Near-infrared Narrow Line Region
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2009/7/9
A Near-infrared view of the Narrow Line Region of AGN。
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。
Eigenvector 1：Towards AGN Spectroscopic Unification
Eigenvector 1 AGN Spectroscopic Unification
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2009/7/1
Eigenvector 1：Towards AGN Spectroscopic Unification。
Measuring the inhomogeneous obscuration of AGN with mid-infrared observations
AGN mid-infrared
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2009/7/1
Measuring the inhomogeneous obscuration of AGN with mid-infrared observations。
Accretion Processes in AGN：The X-Ray View
AGN X-Ray View
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2009/7/1
Accretion Processes in AGN：The X-Ray View。
Agn unification and the x-ray and infrared backgrounds
x-ray infrared backgrounds
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2009/6/25
Agn unification and the x-ray and infrared backgrounds。
THE GRAVITATIONAL MICROLENS INFLUENCE ON X-RAY SPECTRAL LINE GENERATED BY AN AGN ACCRETION DISC
GRAVITATIONAL MICROLENS X-RAY SPECTRAL LINE AGN ACCRETION DISC
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2009/3/13
The influence of gravitational microlensing on the X-ray spectral
line profiles originated from a relativistic accretion disc has been studied. Using
a disc model, we show that microlensing can indu...
THE GRAVITATIONAL MICROLENS INFLUENCE ON X-RAY SPECTRAL LINE GENERATED BY AN AGN ACCRETION DISC
GRAVITATIONAL MICROLENS X-RAY SPECTRAL LINE AGN ACCRETION DISC
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2009/3/13
The influence of gravitational microlensing on the X-ray spectral
line profiles originated from a relativistic accretion disc has been studied. Using
a disc model, we show that microlensing can indu...