Active galactic nucleus

Results: 462



#Item
221Electromagnetic radiation / X-ray telescopes / Radiography / Quasar / Radio astronomy / Nuclear Spectroscopic Telescope Array / Active galactic nucleus / X-ray / Compton Gamma Ray Observatory / Spacecraft / Astronomy / Space telescopes

D RAFT VERSION AUGUST 19, 2014 Preprint typeset using LATEX style emulateapj v[removed]WEAK HARD X-RAY EMISSION FROM BROAD ABSORPTION LINE QUASARS: EVIDENCE FOR INTRINSIC X-RAY WEAKNESS B. L UO , 1,2 W. N. B RANDT, 1,2 D

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Source URL: www.nustar.caltech.edu

Language: English - Date: 2014-09-29 15:19:23
222Large-scale structure of the cosmos / Particle physics / Plasma physics / X-ray astronomy / Dark matter / Active galactic nucleus / International X-ray Observatory / X-ray telescope / Redshift / Physics / Astronomy / Physical cosmology

6 Soft X-ray and ultra-violet metal-line emission from the gas around galaxies The gas around galaxies is diffuse and much fainter than the galaxies themselves. A large fraction of the gas has temperatures between 104.5

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Source URL: home.strw.leidenuniv.nl

Language: English - Date: 2012-03-13 09:22:05
223X-ray telescopes / Astronomy / European Space Agency / Plasma physics / Radiography / X-ray astronomy / Active galactic nucleus / Nuclear Spectroscopic Telescope Array / XMM-Newton / Physics / Space telescopes / Spacecraft

Preprint typeset using LATEX style emulateapj v[removed]THE NUSTAR VIEW OF NEARBY COMPTON-THICK AGN: THE CASES OF NGC 424, NGC 1320 AND IC[removed]arXiv:1408.5414v1 [astro-ph.HE] 22 Aug 2014

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Source URL: www.nustar.caltech.edu

Language: English - Date: 2014-09-29 15:19:23
224Matter / Exotic matter / Active galactic nucleus / Stellar evolution / Galaxy / Structure formation / White dwarf / Redshift / Physics / Physical cosmology / Astronomy

The growth of galaxies and their gaseous haloes Freeke van de Voort The growth of galaxies and

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Source URL: home.strw.leidenuniv.nl

Language: English - Date: 2012-03-13 09:23:59
225Physical cosmology / Large-scale structure of the cosmos / Exotic matter / Galaxies / Dark matter / Active galactic nucleus / Galaxy groups and clusters / Quasar / Accretion / Physics / Astronomy / Stellar evolution

2 The rates and modes of gas accretion onto galaxies and their gaseous haloes We study the rate at which gas accretes onto galaxies and haloes and investigate whether the accreted gas was shocked to high temperatures bef

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Source URL: home.strw.leidenuniv.nl

Language: English - Date: 2012-03-13 09:13:49
226Dark matter / Exotic matter / Stellar evolution / Astrophysics / Galaxy groups and clusters / Galaxy formation and evolution / Galaxy / Active galactic nucleus / Physical cosmology / Physics / Astronomy / Large-scale structure of the cosmos

4 Properties of gas in and around galaxy haloes We study the properties of gas inside and around galaxy haloes as a function of radius and halo mass, focusing mostly on z = 2, but also showing some results for z = 0. For

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Source URL: home.strw.leidenuniv.nl

Language: English - Date: 2012-03-13 09:15:02
227Radiography / Plasma physics / Space telescopes / X-ray telescopes / X-ray astronomy / Active galactic nucleus / Nuclear Spectroscopic Telescope Array / Seyfert galaxy / 3C 273 / Astronomy / Electromagnetic radiation / Science

D RAFT VERSION AUGUST 25, 2014 Preprint typeset using LATEX style emulateapj v[removed]NUSTAR REVEALS THE COMPTONIZING CORONA OF THE BROAD-LINE RADIO GALAXY 3C 382 D. R. BALLANTYNE 1 , J. M. B OLLENBACHER 1, L. W. B RE

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Source URL: www.nustar.caltech.edu

Language: English - Date: 2014-09-29 15:19:23
228Large-scale structure of the cosmos / Stellar evolution / Exotic matter / Dark matter / Active galactic nucleus / Galaxy groups and clusters / Quasar / Accretion / Black hole / Physics / Astronomy / Galaxies

3 The drop in the cosmic star formation rate below redshift 2 is caused by a change in the mode of gas accretion and by active galactic nucleus feedback

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Source URL: home.strw.leidenuniv.nl

Language: English - Date: 2012-03-13 09:14:25
229Radiography / Observational astronomy / X-ray astronomy / Electromagnetic radiation / Plasma physics / X-ray telescope / Nuclear Spectroscopic Telescope Array / Spectroscopy / Active galactic nucleus / Physics / Astronomy / Science

MNRAS 443, 1723–[removed]doi:[removed]mnras/stu1246 The NuSTAR spectrum of Mrk 335: extreme relativistic effects within two gravitational radii of the event horizon?

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Source URL: www.nustar.caltech.edu

Language: English - Date: 2014-09-29 15:24:42
230Large-scale structure of the cosmos / Galaxies / Stellar evolution / Radio astronomy / Dark matter / Active galactic nucleus / Galaxy groups and clusters / Galaxy formation and evolution / Quasar / Physics / Astronomy / Physical cosmology

1 Introduction Galaxy formation has undergone fast development in the past few decades, both theoretically and observationally. The number of observed galaxies is expanding rapidly and observations are pushing to lower m

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Source URL: home.strw.leidenuniv.nl

Language: English - Date: 2012-03-13 09:12:07
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