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相关论文: OAO/ISLE Near-IR Spectroscopy of IRAS Galaxies

200 篇论文

We present Chandra observations of the enigmatic galaxy IRAS00317-2142, which is classified as a star-forming galaxy on the basis of the ionization level of its emission lines. However, a weak broad H\alpha wing and a high X-ray luminosity…

天体物理学 · 物理学 2016-08-30 I. Georgantopoulos , A. Zezas , M. J. Ward

We present a spatially resolved analysis of ionized gas at the nuclear region of the nearby galaxy NGC 1068. While NGC 1068 has been known to have gas outflows driven by its active galactic nucleus (AGN), more complex kinematical signatures…

星系天体物理 · 物理学 2021-02-24 Jaejin Shin , Jong-Hak Woo , Minjin Kim , Junfeng Wang

We present 3 mm observations obtained with the IRAM 30-m telescope for ten nearby gas-rich active galaxies spanning three orders of magnitude in infrared luminosity. Emission lines of HCO+(1-0), HCN(1-0), and C2H(1-0) were simultaneously…

宇宙学与河外天体物理 · 物理学 2015-05-30 Xuejian Jiang , Junzhi Wang , Qiusheng Gu

We present low resolution Spitzer-IRS spectra of 40 ETGs, selected from a sample of 65 ETGs showing emission lines in their optical spectra. We homogeneously extract the mid-infrared (MIR) spectra, and after the proper subtraction of a…

宇宙学与河外天体物理 · 物理学 2015-05-20 P. Panuzzo , R. Rampazzo , A. Bressan , O. Vega , F. Annibali , L. M. Buson , M. S. Clemens , W. W. Zeilinger

Using the Far Ultraviolet Spectroscopic Explorer (FUSE) we have obtained 87 spectra of 57 low-redshift (z<0.15) active galactic nuclei (AGN). This sample comprises 53 Type 1 AGN and 4 Type 2. All the Type 1 objects show broad O VI 1034…

天体物理学 · 物理学 2017-08-23 Gerard A. Kriss , the FUSE AGN Working Group

We present an analysis of 3D spectra of Mrk 533, observed with the integral-field spectrograph MPFS and using the Fabry Perot Interferometer (FPI) of the SAO RAS 6-m telescope. We found emissions of gas from the active Sy 2 nucleus in the…

天体物理学 · 物理学 2008-11-26 A. A. Smirnova , N. Gavrilovic , A. V. Moiseev , L. C. Popovic , V. L. Afanasiev , P. Jovanovic , M. Dacic

The observation of the Narrow-Line Seyfert 1 galaxy IRAS13349+2438 performed by XMM-Newton European Photon Imaging Camera between 0.3-10 keV, is presented here. The broadband spectrum of the source is dominated at low energies (E < 2 keV)…

天体物理学 · 物理学 2009-11-10 A. L. Longinotti , M. Cappi , K. Nandra , M. Dadina , S. Pellegrini , ;

The biconical radiation pattern extending from an active galactic nucleus (AGN) may strongly photoionize the circumnuclear interstellar medium (ISM) and stimulate emission from the narrow line region (NLR). Observations of the NLR may…

Gamma-ray lines from cosmic sources provide unique isotopic information, since they originate from energy level transitions in the atomic nucleus. Gamma-ray telescopes explored this astronomical window in the past three decades, detecting…

天体物理学 · 物理学 2009-11-10 Roland Diehl , Nikos Prantzos , Peter von Ballmoos

We use the SAURON and GMOS integral field spectrographs to observe the active galactic nucleus (AGN) powered outflow in NGC 1266. This unusual galaxy is relatively nearby (D=30 Mpc), allowing us to investigate the process of AGN feedback in…

We report the detection of a heavily obscured Active Galactic Nucleus (AGN) in the luminous infrared galaxy (LIRG) NGC 6286, identified in a 17.5 ks NuSTAR observation. The source is in an early merging stage, and was targeted as part of…

This is the fourth in our series of papers investigating radio-excess galaxies, which have radio emission associated with an active nucleus but which do not fit into the traditional categories of either radio-loud or radio-quiet active…

天体物理学 · 物理学 2008-11-26 Catherine L. Buchanan , Peter J. McGregor , Geoffrey V. Bicknell , Michael A. Dopita

We present J-band long-slit spectroscopic observation of NGC 1068 classified as a Seyfert 2 galaxy. J-band observations with OAO/ISLE provide clear detection of spatially extended [Fe II]1.257um and [P II]1.188um lines. We found that [Fe…

宇宙学与河外天体物理 · 物理学 2015-05-20 Tetsuya Hashimoto , Tohru Nagao , Kenshi Yanagisawa , Kenta Matsuoka , Nobuo Araki

We present ISO PHOT-S spectra of four galaxies known or suspected to host a central AGN, selected from the initial Iras/Rosat sample of Boller et al. (1992). Two of them had no obvious Seyfert features in their previous optical spectra:…

天体物理学 · 物理学 2016-08-30 Michel Dennefeld , Thomas Boller , Dimitra Rigopoulou , Henrik Spoon

We present near infrared ISAAC VLT observations of nine (0.01<z<0.06) Active Galactic Nuclei selected from the Hamburg/ESO Survey and the Veron-Cetty & Veron catalog. Hydrogen recombination lines Pa$\alpha$ and Br$\gamma$ are observed in…

天体物理学 · 物理学 2009-11-11 S. Fischer , C. Iserlohe , J. Zuther , T. Bertram , C. Straubmeier , R. Schoedel , A. Eckart

We present the data and our analysis of MIR fine-structure emission lines detected in Spitzer/IRS high-res spectra of 202 local LIRGs observed as part of the GOALS project. We detect emission lines of [SIV], [NeII], [NeV], [NeIII],…

We present the first results of our program to study a sample of local luminous infrared galaxies (LIRGs, L_IR = 10^11-10^12 L_sun) with the Spitzer infrared spectrograph (IRS). In these proceedings we investigate the behavior of the 9.7 um…

星系天体物理 · 物理学 2010-05-07 M. Pereira-Santaella , A. Alonso-Herrero , G. H. Rieke , L. Colina

Spectral energy distribution and its variability are basic tools for understanding the physical processes operating in active galactic nuclei (AGN). In this paper we report the results of a one-year near infra red (NIR) and optical…

高能天体物理现象 · 物理学 2015-06-16 R. Nesci , G. Tosti , T. Pursimo , R. Ojha , M. Kadler

We report the detection of the 1_{10}-1_{11} ground state transition of ortho-H_2D^+ at 372.421 GHz in emission from the young stellar object NGC 1333 IRAS 4A. Detailed excitation models with a power-law temperature and density structure…

天体物理学 · 物理学 2009-10-31 Ronald Stark , Floris F. S. van der Tak , Ewine F. van Dishoeck

We present BeppoSAX observations of 6 ``type-2'' LINER and ``transition'' galaxies (NGC3379, NGC3627, NGC4125, NGC4374, NGC5195 and NGC5879)from the Ho et al. (1997) spectroscopic sample of nearby galaxies. All objects are detected in the…

天体物理学 · 物理学 2016-08-30 I. Georgantopoulos , F. Panessa , A. Akylas , A. Zezas , M. Cappi , A. Comastri