中文
相关论文

相关论文: {\lambda} = 2 mm spectroscopy observations toward …

200 篇论文

We present 1.4 pc resolution observations of 256 GHz nuclear radio continuum and HCN ($J=3 \to 2$) in the molecular torus of NGC 1068. The integrated radio continuum emission has a flat spectrum consistent with free-free emission and…

We present high spatial resolution (5.1" x 2.7") OVRO millimeter array observations of HCN (J=1-0) and HCO+ (J=1-0) emission in the inner 3 pc of the galaxy. The HCN and HCO+ emission of the circumnuclear disk (CND) is distributed in a…

天体物理学 · 物理学 2009-11-10 M. H. Christopher , N. Z. Scoville , S. R. Stolovy , Min S. Yun

We have used the Xco conversion factor, Local Thermal Equilibrium and Large Velocity Gradient approximation to parametrize the cold and warm phase of the interstellar medium from five different low transitions of CO in the central 21"(kpc)…

宇宙学与河外天体物理 · 物理学 2015-05-27 Nuria Piñol-Ferrer , Kambiz Fathi , Andreas Lundgren , Glenn van de Ven

We performed stellar population synthesis on the nuclear and extended regions of NGC 1068 by means of near-infrared spectroscopy to disentangle their spectral energy distribution components. This is the first time that such a technique is…

宇宙学与河外天体物理 · 物理学 2015-05-19 Lucimara Martins , Rogério Riffel , Alberto Rodríguez-Ardila , Ruth Gruenwald , Ronaldo de Souza

In order to constrain the properties of dense and warm gas around active galactic nuclei, we have searched Infrared Space Observatory spectra of local active galactic nuclei for the signature of the 4.7micron fundamental ro-vibrational band…

天体物理学 · 物理学 2009-11-10 D. Lutz , E. Sturm , R. Genzel , H. W. W. Spoon , G. J. Stacey

We report 350 and 230 GHz observations of molecular gas and dust in the starburst nucleus of NGC 253 at 20-40 pc (1"-2") resolution. The data contain CO(3-2), HCN(4-3), CO(2-1), 13CO(2-1), C18O(2-1), and continuum at 0.87 mm and 1.3 mm…

宇宙学与河外天体物理 · 物理学 2015-05-27 Kazushi Sakamoto , Rui-Qing Mao , Satoki Matsushita , Alison B. Peck , Tsuyoshi Sawada , Martina C. Wiedner

We present the results of our ALMA Cycle 4 high-spatial-resolution (0.04-0.07") observations, at HCN J=3-2 and HCO+ J=3-2 lines, of the nucleus of NGC 1068, the nearby prototypical type 2 active galactic nucleus (AGN). Our previous ALMA…

星系天体物理 · 物理学 2018-02-14 Masatoshi Imanishi , Kouichiro Nakanishi , Takuma Izumi , Keiichi Wada

We investigated the kinematic and excitation structure of the NGC 1068 narrow-line region (NLR). We obtained profiles of several emission lines, [OIII]$\lambda$5007, H$\beta$, [OI]$\lambda$6300 and [FeVII]$\lambda$6087 at high-velocity…

星系天体物理 · 物理学 2015-05-13 Shinobu Ozaki

We present the first K-band bispectrum speckle interferometry of NGC 1068 with an angular resolution of 76 mas (~5.5pc). This angular resolution allows us to attribute the measured flux to only one of the nuclear sources seen at radio…

天体物理学 · 物理学 2007-05-23 M. Wittkowski , Y. Balega , T. Beckert , W. J. Duschl , K. -H. Hofmann , G. Weigelt

We report the first detection of galactic spiral structure by means of thermal emission from magnetically aligned dust grains. Our 89 $\mu$m polarimetric imaging of NGC 1068 with the High-resolution Airborne Wideband Camera/Polarimeter…

The purpose of this paper is to describe a method for determining a cooling template for galaxies, using nearby galaxies, and applicable to future observations of distant galaxies. We observed two starburst galaxies (NGC 253 and Henize…

天体物理学 · 物理学 2009-11-10 E. Bayet , M. Gerin , T. G. Phillips , A. Contursi

We present the results of a series of observations of the near- and mid-infrared polarisation properties of the Seyfert 2 galaxy NGC1068. Our data agree well with previously published results in showing the need for a separate polarisation…

天体物理学 · 物理学 2011-03-10 S. L. Lumsden , T. J. T. Moore , C. Smith , T. Fujiyoshi , J. Bland-Hawthorn , M. J. Ward

We present the kinematics of the ionized gas over the inner 140 arcsec (10 kpc) of NGC 1068 from observations with the HIFI Fabry-Perot interferometer. There is clear evidence for density wave streaming and bar-driven streaming across the…

天体物理学 · 物理学 2011-03-10 W. Dehnen , J. Bland-Hawthorn , A. Quirrenbach , G. Cecil

We present high resolution (R = 75,000-100,000) mid-infrared spectra of the high-mass embedded young star IRS 1 in the NGC 7538 star-forming region. Absorption lines from many rotational states of C2H2, 13C12CH2, CH3, CH4, NH3, HCN, HNCO,…

星系天体物理 · 物理学 2012-08-27 C. Knez , J. H. Lacy , N. J. Evans , II , E. F. van Dishoeck , M. J. Richter

Recent developments in (sub-)millimeter facilities have drastically changed the amount of information obtained from extragalactic spectral scans. In this paper, we present a feature extraction technique using principal component analysis…

We present near-infrared interferometric data on the Seyfert 2 galaxy NGC 1068, obtained with the GRAVITY instrument on the European Southern Observatory Very Large Telescope Interferometer. The extensive baseline coverage from 5 to 60…

Multiple molecular lines are useful for studying the physical properties of multiphase star-forming gas in different types of galaxies. We probe the molecular gas throughout the disc of the spiral galaxy NGC~5033, hosting an active galactic…

星系天体物理 · 物理学 2021-05-25 Selçuk Topal

We present observations of the $^{12}$CO(6-5) line and 686GHz continuum emission in NGC253 with the Submillimeter Array at an angular resolution of ~4arcsec. The $^{12}$CO(6-5) emission is clearly detected along the disk and follows the…

We present the first high-resolution, soft-X-ray spectrum of the prototypical Seyfert 2 galaxy, NGC 1068. This spectrum was obtained with the XMM-Newton Reflection Grating Spectrometer. Emission lines from H-like and He-like low-Z ions…

天体物理学 · 物理学 2009-11-07 A. Kinkhabwala , M. Sako , E. Behar , S. M. Kahn , F. Paerels , A. C. Brinkman , J. S. Kaastra , M. F. Gu , D. A. Liedahl

We present a study of the nearby Seyfert galaxy NGC 1068 using mid- and far- infrared data acquired with the IRAC, IRS, and MIPS instruments aboard the Spitzer Space Telescope. The images show extensive 8 um and 24 um emission coinciding…