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相关论文: Integral field optical spectroscopy of a represent…

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We present a 2D study of the internal extinction on (sub)kiloparsec scales of a sample of local (z<0.1) (U)LIRGs, based on near-infrared Pa_a, Br_d, and Br_g line ratios, obtained with VLT-SINFONI integral-field spectroscopy. The 2D…

宇宙学与河外天体物理 · 物理学 2013-09-11 J. Piqueras López , L. Colina , S. Arribas , A. Alonso-Herrero

We report the results of a systematic near-infrared spectroscopic survey using the Subaru, VLT and Keck Telescopes of a sample of high redshift Ultra-luminous Infrared Galaxies (ULIRGs) mainly composed of submillimeter-selected galaxies.…

We investigate the instantaneous star formation rates (SFR) and extinction properties for a large (N=274), near-infrared (2.2 micron) + mid-infrared (24 micron) selected sample of normal to ultra-luminous infrared galaxies (ULIRGs)…

We present a 2D study of star formation at kpc and sub-kpc scales of a sample of local (z<0.1) U/LIRGs, based on near-IR VLT-SINFONI observations. We obtained integrated measurements of the star formation rate (SFR) and star formation rate…

We present the analysis of infrared HST and Spitzer data for a sample of 13 FRII radio galaxies at 0.03<z<0.11 that are classified as narrow-line radio galaxies (NLRG). In the context of the unified schemes for active galactic nuclei (AGN),…

星系天体物理 · 物理学 2015-06-18 E. A. Ramírez , C. N. Tadhunter , D. Dicken , M. Rose , D. Axon , W. Sparks , C. Packham

We analyze high-resolution (400pc) 220GHz continuum and CO(2-1) ALMA observations of a representative sample of 23 local (z<0.165) ULIRG systems (34 individual nuclei) as part of the "Physics of ULIRGs with MUSE and ALMA" (PUMA) project.…

Using deep J, H and Ks-band observations, we have studied the near-infrared (nIR) extinction of the Nuclear Bulge (NB) and we find significant, complex variations on small physical scales. We have applied a new variable nIR colour excess…

星系天体物理 · 物理学 2009-11-13 Andrew J. Gosling , Reba M. Bandyopadhyay , Katherine M. Blundell

We present photometry in U, B, V, R and I continuum bands and in H$\alpha$ and H$\beta$ emission lines for a sample of 336 circumnuclear star forming regions (CNSFR) located in early type spiral galaxies with different levels of activity in…

星系天体物理 · 物理学 2017-01-04 Mar Álvarez-Álvarez , Angeles I. Díaz , Elena Terlevich , Roberto Terlevich

We present near-infrared spectroscopy for a complete sample of 33 ultraluminous infrared galaxies at a resolution of R\approx 1000. Most of the wavelength range from 1.80-2.20 microns in the rest frame is covered, including the Pa-alpha and…

天体物理学 · 物理学 2012-08-27 T. W. Murphy, , B. T. Soifer , K. Matthews , L. Armus , J. R. Kiger

We perform photometric measurements on a large HST snapshot imaging survey sample of 97 ultraluminous infrared galaxies (ULIRGs). We select putative nuclei from bright clumps in all the sample targets, mainly based on a quantitative…

天体物理学 · 物理学 2009-11-06 J. Cui , X. -Y. Xia , Z. -G. Deng , S. Mao , Z. -L. Zou

We present a new, high resolution (5" per pixel) near-infrared extinction map of the Nuclear Bulge using data from the UKIDSS-GPS. Using photometry from the J, H and K-bands we show that the extinction law parameter is also highly variable…

天体物理学 · 物理学 2011-04-11 Andrew J. Gosling , Katherine M. Blundell , Reba M. Bandyopadhyay , Phil Lucas

We present a study of the optical spectral properties of 115 ultraluminous infrared galaxies (ULIRGs) in the southern sky. Using the optical spectra obtained at CTIO 4 m and provided by the 2dF Galaxy Redshift Survey and the 6dF Galaxy…

宇宙学与河外天体物理 · 物理学 2015-05-27 Jong Chul Lee , Ho Seong Hwang , Myung Gyoon Lee , Minjin Kim , Sang Chul Kim

We have determined the ratios of total to selective extinction directly from observations in the optical V band and near-infrared J band toward the Galactic center. The OGLE (Optical Gravitational Lensing Experiment) Galactic bulge fields…

We present a high spatial (diffraction-limited) resolution (~0.3") mid-infrared (MIR) spectroscopic study of the nuclei and star-forming regions of 4 local luminous infrared galaxies (LIRGs) using T-ReCS on the Gemini South telescope. We…

宇宙学与河外天体物理 · 物理学 2015-05-14 T. Diaz-Santos , A. Alonso-Herrero , L. Colina , C. Packham , N. A. Levenson , M. Pereira-Santaella , P. F. Roche , C. M. Telesco

We use high spectral resolution (R > 8000) data covering 3800-13000\r{A} to study the physical conditions of the broad line region (BLR) of nine nearby Seyfert 1 galaxies. Up to six broad HI lines are present in each spectrum. A comparison…

We present an analysis of 2.05 $\mu$m Hubble Space Telescope (HST) polarimetric data for a sample of 13 nearby Fanaroff-Riley type II (FRII) 3CR radio sources ($0.03<z<0.11$) that are classified as narrow line radio galaxies (NLRG) at…

星系天体物理 · 物理学 2015-06-22 E. A. Ramírez , C. N. Tadhunter , D. Axon , D. Batcheldor , C. Packham , E. Lopez-Rodriguez , W. Sparks , S. Young

Aims. We study the analogy between local U/LIRGs and high-z massive SFGs by comparing basic H{\alpha} structural characteristics, such as size, and luminosity (and SFR) surface density, in an homogeneous way (i.e. same tracer and size…

We report the first results of a low resolution mid-infrared spectroscopic survey of an unbiased, far-infrared selected sample of 60 ultraluminous infrared galaxies, using ISOPHOT-S on board ISO. We use the ratio of the 7.7um `PAH' emission…

天体物理学 · 物理学 2010-03-19 D. Lutz , H. W. W. Spoon , D. Rigopoulou , A. F. M. Moorwood , R. Genzel

We present the results of our ALMA $\lesssim$0.5 kpc-resolution dense molecular line (HCN and HCO$^{+}$ J=2-1, J=3-2, and J=4-3) observations of 12 nearby (ultra)luminous infrared galaxies ([U]LIRGs). After matching beam sizes of all…

星系天体物理 · 物理学 2023-07-31 Masatoshi Imanishi , Shunsuke Baba , Kouichiro Nakanishi , Takuma Izumi

We report the results from a comprehensive study of 74 ultraluminous infrared galaxies (ULIRGs) and 34 Palomar-Green (PG) quasars within z ~ 0.3$ observed with the Spitzer Infrared Spectrograph (IRS). The contribution of nuclear activity to…

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