Scattering of emission lines in galaxy cluster cores: measuring electron temperature
arXiv:1403.8107 · doi:10.1093/mnras/stu675
Abstract
The central galaxies of some clusters can be strong emitters in the Ly and H lines. This emission may arise either from the cool/warm gas located in the cool core of the cluster or from the bright AGN within the central galaxy. The luminosities of such lines can be as high as erg/s. This emission originating from the core of the cluster will get Thomson scattered by hot electrons of the intra-cluster medium (ICM) with an optical depth 0.01 giving rise to very broad ( 15%) features in the scattered spectrum. We discuss the possibility of measuring the electron density and temperature using information on the flux and width of the highly broadened line features.
arXiv comment9 pages, 5 figures, accepted in MNRAS
References in corpus (35)
- An Observational Determination of the Bolometric Quasar Luminosity Function
- Evolution of Buoyant Bubbles in M87
- Intracluster Medium Entropy Profiles for a Chandra Archival Sample of Galaxy Clusters
- The ROSAT Brightest Cluster Sample (BCS): -- III. Optical spectra of the central cluster galaxies
- The detection of molecular gas in the central galaxies of cooling-flow clusters
- Diffuse Light in the Virgo Cluster
- On the Nature of the NGC 1275 System
- Cold molecular gas in cooling flow clusters of galaxies
- On the Origin of the Extended Halpha Filaments in Cooling Flow Clusters
- A Massive, Cooling-Flow-Induced Starburst in the Core of a Highly Luminous Galaxy Cluster
- The ghost of a dwarf galaxy: fossils of the hierarchical formation of the nearby spiral galaxy NGC 5907
- Resurrecting the Red from the Dead: Optical Properties of BCGs in X-ray Luminous Clusters
- Candidate Type II Quasars from the SDSS: III. Spectropolarimetry Reveals Hidden Type I Nuclei
- An optical spectroscopic survey of the 3CR sample of radio galaxies with z<0.3. I. Presentation of the data
- Optical and Near-Infrared Color Profiles in Nearby Early-Type Galaxies and The Implied Age and Metallicity Gradients
- HST Observations of Vibrationally-Excited Molecular Hydrogen in Cluster Cooling Flow Nebulae
- On the origin and excitation of the extended nebula surrounding NGC 1275
- Optical Colors of Intracluster Light in the Virgo Cluster Core
- Chandra X-ray observations of the 3C295 cluster core
- Optical Spectroscopy of Halpha Filaments in Cool Core Clusters: Kinematics, Reddening, and Sources of Ionization
- The SAURON project - XIII. SAURON-GALEX study of early-type galaxies: the ultraviolet colour-magnitude relations and Fundamental Planes
- The Herschel Virgo Cluster Survey: X.The relationship between cold dust and molecular gas content in Virgo spirals
- Pahs, Ionized Gas, and Molecular Hydrogen in Brightest Cluster Galaxies of Cool Core Clusters of Galaxies
- Ionized nebulae surrounding brightest cluster galaxies
- Removing Internal Reflections from Deep Imaging Datasets
- The profile of a narrow line after single scattering by Maxwellian electrons: relativistic corrections to the kernel of the integral kinetic equation
- On the Origin of the UV Continuum Emission from the High Redshift Radio Galaxy 3C256
- Herschel observations of the Centaurus cluster - the dynamics of cold gas in a cool core
- Herschel observations of extended atomic gas in the core of the Perseus cluster
- Contribution of the accretion disk, hot corona, and obscuring torus to the luminosity of Seyfert galaxies: INTEGRAL and Spitzer observations
- Measuring large-scale structure with quasars in narrow-band filter surveys
- Constraining the past X-ray luminosity of AGN in clusters of galaxies: the role of resonant scattering
- A Method for Mapping the Temperature Profile of X-ray Clusters Through Radio Observations
- HST/STIS Spectroscopy of the Lyman-Alpha Emission Line in the Central Dominant Galaxies in A426, A1795, and A2597: Constraints on Clouds in the Intracluster Medium
- Polarized Scattering in the Vicinty of Galaxies