中文
相关论文

相关论文: Integral field spectroscopy of QSO host galaxies

200 篇论文

We describe the advantages of using Integral Field Spectroscopy to observe deep fields of galaxy. The VIMOS Integral Field Unit is particularly suitable for this kind of studies thanks to its large field-of-view (~ 1 arcmin^2). After a…

天体物理学 · 物理学 2009-11-10 S. Foucaud , M. Scodeggio , A. Zanichelli , B. Garilli , E. Giallongo

(Abridged) We describe a new method to extract spectra of stars from observations of crowded stellar fields with integral field spectroscopy (IFS). Our approach extends the well-established concept of crowded field photometry in images into…

天体物理仪器与方法 · 物理学 2015-06-12 Sebastian Kamann , Lutz Wisotzki , Martin M. Roth

We explore the use of Integral Field Spectroscopy (IFS) to observe extrasolar planet transits. Although this technique should find its full potential in space observations (e.g. JWST, TPF), we have tested its basics with ground based time…

We present the first sub-kpc 0.7" (~ 850 pc) resolution 12CO(1-0) molecular line observations of the ISM in the host galaxy of the QSO I Zw 1. The observations were obtained with the BIMA mm-interferometer in its compact A configuration.…

天体物理学 · 物理学 2009-11-10 J. G. Staguhn , E. Schinnerer , A. Eckart , J. Scharwächter

Recent targeted studies of associated HI absorption in radio galaxies are starting to map out the location, and potential cosmological evolution, of the cold gas in the host galaxies of Active Galactic Nuclei (AGN). The observed 21 cm…

宇宙学与河外天体物理 · 物理学 2015-06-11 J. R. Allison , E. M. Sadler , S. J. Curran , S. N. Reeves

2 micron broad- and narrow-band imaging with the Gemini-N telescope of five z~4.7 QSOs, has resolved both the host galaxies and [O II] emission-line gas. The resolved fluxes of the host galaxies fall within the extrapolated spread of the…

天体物理学 · 物理学 2009-11-07 J. B. Hutchings

Past millimeter-wave galaxy surveys have primarily probed the brightest starburst galaxies only and suffered heavily from confusion. The interpretation of existing surveys has also been hindered by the lack of reliable redshift indicators…

天体物理仪器与方法 · 物理学 2025-12-05 Attila Kovács , Garrett K. Keating , Thomas R. Greve , Timothy Norton

We publish the survey for galaxies in 20 fields containing ultraviolet bright quasars (with z_em 0.1 to 0.5) that can be used to study the association between galaxies and absorption systems from the low-z intergalactic medium (IGM). The…

宇宙学与河外天体物理 · 物理学 2015-05-27 J. Xavier Prochaska , B. Weiner , H. -W. Chen , K. L. Cooksey , J. S. Mulchaey

(abridged) Spectroscopic observations of high-redshift galaxies slowly reveal the same complexity of the interstellar medium (ISM) as expected from resolved observations in nearby galaxies. While providing a wealth of diagnostics, such…

星系天体物理 · 物理学 2022-11-09 Vianney Lebouteiller , Lise Ramambason

We present results from the first on-sky demonstration of a prototype astronomical integrated photonic spectrograph (IPS) using the Anglo-Australian Telescope near-infrared imaging spectrometer (IRIS2) at Siding Spring Observatory to…

天体物理仪器与方法 · 物理学 2018-05-23 N. Cvetojevic , J. S. Lawrence , S. C. Ellis , J. Bland-Hawthorn , R. Haynes , A. Horton

High resolution rest frame UV quasar absorption spectra covering low and high ionization species, as well as the Lyman series lines, provide remarkably detailed information about the gaseous phases of galaxies and their environments. For…

天体物理学 · 物理学 2007-05-23 Jane C. Charlton

Infrared spectroscopy in the mid- and far-infrared provides powerful diagnostics for studying the emission regions in active galaxies. The large variety of ionic fine structure lines can probe gas conditions in a variety of physical…

天体物理学 · 物理学 2007-09-27 Luigi Spinoglio

We present integrated optical spectrophotometry for a sample of 417 nearby galaxies. Our observations consist of spatially integrated, S/N=10-100 spectroscopy between 3600 and 6900 Angstroms at ~8 Angstroms FWHM resolution. In addition, we…

天体物理学 · 物理学 2009-11-11 John Moustakas , Robert C. Kennicutt

We investigate multicolour imaging data of a complete sample of low redshift (z<0.2) QSO host galaxies. The sample was imaged in four optical (BVRi) and three near-infrared bands (JHKs), and in addition spectroscopic data is available for a…

天体物理学 · 物理学 2007-05-23 K. Jahnke , B. Kuhlbrodt , E. Orndahl , L. Wisotzki

We have undertaken a project to investigate the host galaxies and environments of a sample of quasars at z~4. In this paper, we describe deep near-infrared imaging of 34 targets using the Magellan I and Gemini North telescopes. We discuss…

宇宙学与河外天体物理 · 物理学 2014-11-20 K. K. McLeod , Jill Bechtold

The combination of two-dimensional kinematics and gravitational lens modelling permits detailed reconstruction of the phase-space structure of early-type galaxies and sets constraints on the dark-matter distribution in their inner regions.…

天体物理学 · 物理学 2015-05-13 Oliver Czoske , Matteo Barnabe , Leon Koopmans

The likely merger process and the properties of the stellar populations in the I Zw 1 host galaxy are analyzed on the basis of multi-wavelength observations (with the ISAAC camera at the Very Large Telescope (VLT/UT1) of the European…

天体物理学 · 物理学 2017-01-18 J. Scharwaechter , A. Eckart , S. Pfalzner , J. Moultaka , C. Straubmeier , J. Staguhn , E. Schinnerer

We present two-dimensional, integral field spectroscopy covering the rest-frame wavelengths of strong optical emission lines in nine sub-mm-luminous galaxies (SMGs) at 2.0<z<2.7. The GEMINI-NIFS and VLT-SINFONI imaging spectroscopy allows…

We present multi object optical spectroscopy of the galaxies in the environment of 12 low-redshift (z < 0.5) quasars and of 11 inactive massive galaxies chosen to match the properties of the quasar host galaxies to probe physical…

星系天体物理 · 物理学 2022-12-21 D. Bettoni , R. Falomo , S. Paiano , J. K. Kotilainen , M. B. Stone