... Optical: Large filamentary loop, brightest to the NE, not well defined to the S or W. X-ray: Shell in soft X-rays. ... VLA observations of CL4. ADS . ... 1985, ApJ, 295, 456. ... Fe X ] and [Fe XIV ] spectroscopy. ... Greidanus & Strom 1992, A&A, 257, 265. ... ROSAT and optical observations of W. ADS . ... ASCA observations of compact X-ray source in S. ADS . ... 1999, A&AS, 137, 7. ... 2001, ApJ, 550, 1023. ... Far-UV spectroscopy, Halpha and other optical observations of NE region. ...

... 349Stickel+ III/175 Optical spectroscopy of radio sources (Stickel+, 1989-94) ================================================================================ Optical spectroscopy of 1Jy, S4 and S5 radio source identifications STICKEL M., KUEHR H., FRIED J.W. " sign for lower redshift limit 14- 18 F5.3 --- z []? ... Of the 54 radio sources with previously published identifications, 50 optical counterparts have been confirmed while for 4 sources new identifications are proposed. ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... The Optical Counterpart of the X-ray Transient . RX J0117.6-7330: Spectroscopy and Photometry . ... We conducted spectroscopic and photometric observations of the optical companion of the X-ray transient RX J0117.6-7330 in the Small Magellanic Cloud, during a quiescent state. ... galaxies: Magellanic Clouds--stars: individual (RX J0117.6-7330)--X-ray: binaries . ... High-resolution Optical Spectroscopy . ...

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

... Emission Line Properties of AGN from a post-COSTAR FOS HST Spectral Atlas" . ... Emission line measurements: - FORMAT , and DATA . ... Evidence for a Strong NV/CIV Correlation Between Emission and Absorption Lines in AGN" . ... Emission Line Properties of AGN from a pre-COSTAR FOS HST Spectral Atlas" . ... The Hubble/ROSAT Continuum and Ultraviolet Line Emission Study (H/RCULES) of AGN enables characterization of: . Spectral energy distributions from X-ray to Radio. ... Emission line properties. ...

... Field of interest: data analysis and interpretation of X-ray observations of BHC and NS systems, astrophysics of compact objects and related phenomena: X-ray , optical and radio observations , shocks and stellar winds, emission mechanism, the spectral and timing analysis of the X-ray emission from microquasars ( signature of accreting BH), atoll- and Z-sources ( signature of accreting NS), modeling of INTEGRAL images % . ...

... LABORATORY OF RADIO ASTRONOMICAL OBSERVATIONS . Radio sources identification is one of the most important tasks of the current radio astrophysics. ... Optical idetification. ... Optical identifications of subsample of steep spectra radio sources from RC catalog using 6m SAO telescope of SAO RAS: optical observations. ... Astronomy Reports. ... Identification of radio sources with data of various radio catalogs allows one to construct continual spectrum of the object and its radio structure. ...

As was the case with the northern HDF, there is likely to be lively interaction and competition among groups interpreting the HDF-S data and carrying out follow-up observations. ... Here we provide a clearinghouse of links to web pages by various groups who are carrying out HDF-S research and observations. We invite anyone contemplating follow-up observations or detailed analysis to share information through this web page. ... Main HST HDF-S page . ... Main AAO HDF-S page . ...

Next: The Criteria Up: Survey Methods Previous: Survey Methods . The Deep X-ray Radio Blazar Survey (DXRBS) uses a cross-correlation of all serendipitous sources in the publicly available database of ROSAT sources, WGACAT (White, Giommi & Angelini 1995), having quality flag (to avoid problematic detections) with a number of publicly available radio catalogs. ... All sources with radio spectral index at a few GHz were selected as blazar candidates. ... 1997). ...

An X-ray/radio sample of Active Galactic Nuclei Nuria Fonseca Bonilla Tutor: Stefano Bianchi Matteo Guainazzi An X-ray/radio sample of Active Galactic Nuclei Brief introduction Results Conclusions An X-ray/radio sample of Active Galactic Nuclei 1. ... Classification of AGN radio loud (powerful jets): e.g: radio galaxies, quasars, blazars... radio quiet radio quiet quasars (RQQs) Veron `06: MABS < -23 Seyfert Veron `06: MABS > -23 An X-ray/radio sample of Active Galactic Nuclei 3. ...

... Supernova Remnant E0102 72 from Radio to X-Ray . ... The shape of supernova remnant E0102-72 , however, is giving astronomers a clue about how tremendous explosions disperse elements and interact with surrounded gas. ... Radio waves , shown in red, trace high-energy electrons spiraling around magnetic field lines in the shock wave expanding out from the detonated star. ... Publications with keywords: radio - supernova remnant - shock wave - supernova . ... The Elusive Jellyfish Nebula . ...

... 2000 April 14 . Supernova Remnant E0102-72 from Radio to X-Ray . Credit: X-ray ( NASA / CXC / SAO ); optical ( NASA / HST ); radio: ( ATNF / ATCA ) . ... The shape of supernova remnant E0102-72 , however, is giving astronomers a clue about how tremendous explosions disperse elements and interact with surrounded gas. ... X-rays , shown in blue, show relatively hot gas that has been heated to millions of degrees . ... About APOD | ... NASA Technical Rep.: ... A service of: LHEA at NASA / GSFC . ...

CHIANTI - an atomic database for emission lines. ... K.P.Dere, E.Landi, H.E.Mason, B.C.Monsignori-Fossi, P.R.Young, 1997, A , 125, 149 . Article: Available from ADS . The Arcetri Spectral Code for thin plasmas . E.Landi M.Landini 1998, A , 133, 1 . ... E.Landi, M.Landini K.P.Dere, P.R.Young, H.E.Mason, 1999, A , 135, 339 . ... K.P.Dere, E.Landi, P.R.Young, G.Del Zanna, 2001, ApJS, 134, 331 . ... G.Del Zanna, B.J.I.Bromage, E.Landi, M.Landini, 2001, A , 379, 708 . ...

New Opportunities 2010 and Beyond: The High-Energy/Radio Connection High Energy Missions Timeline XMM, Suzaku.. ... Hard X-ray Sky EXIST Wide-Field Hard X-ray Imaging: EXIST ·~20X more sensitive than Swift or INTEGRAL and cover full sky ·Detect ~104 sources, 10 positions, 3-600 keV spectra ·unique temporal survey: full sky imaging each orbit High Energy Telescope HET (10-600keV) (6 x 3 coded aperture telescopes; 131o x 65o FoV) Low Energy Telescope LET (3-30 ...

... OH, = 18 cm Nancay Radio Telescope, OH 18-cm line observations , since 1969 F, Jy 6 4 2 0 0 -1 -2 0 -1 -2 0 -2 -4 -6 30 40 50 1612 MHz I HU Pup August 5, 2009 1665 MHz 4 2 0 0.5 0.0 - 0.5 -1.0 -1.5 1.0 0.5 0.0 - 0.5 4 3 2 1 0 -1 1667 MHz I I 1.0 0.5 0.0 0.5 0.0 22-meter telescope, Pushchino Radio Astronomy Observatory H2O F, Jy 1.0 0.5 0.0 0.4 0.2 0.0 -0.2 -0.4 0.4 0.2 0.0 -0.2 -0.4 -0.6 0.6 0.4 0.2 0.0 -0.2 -0.4 -70 -60 -50 -40 -30 -20 -10 0 Mira-type star R Leo. ...

Our understanding of star formation in galaxies is facilitated by observations, at multiple wavelengths, of emission which traces stellar populations. ... Using optical integral field spectroscopy, my work aims to better understand the local SFR calibrations, which use H-alpha and radio continuum emission, when applied to different regions of a galaxy, as well as to galaxies as a whole. ...

... We present several applications of the AIPS++ environment as applied to the development of the Green Bank Telescope as well as current astrophysical problems. ... In particular, the Green Bank Telescope (GBT) project requires AIPS++ as an analysis environment. To accommodate and facilitate the GBT development, several sets of tools have been fashioned within AIPS++ at several points along the data path, from general calibration routines and data quality assessment to analysis and modeling. ...

Individual papers from the VSOP Symposium Proceedings, "Astrophysical Phenomena Revealed by Space VLBI", eds H. Hirabayashi, P.G. Edwards and D.W. Murphy (ISAS), can be downloaded as gzipped postscript files by clicking on the links below. ... Multi-Epoch Global+VSOP/HALCA Observations of Virgo A at lambda 6 cm . ... Space-VLBI Observations of the Core-Jet in the Nearby Spiral Galaxy M81 . ... H. Hirabayashi, P.G. Edwards, B.G. Piner et al. ... Pentachromatic VSOP and VLBA Survey of GPS Sources . ...

... R-band images obtained at 0.8 arcsec seeing conditions have allowed us to separate foreground star from point-like extragalactic source and estimate their brightness separately. ... To study the nature and properties of the source, we observed it under high spatial resolution. ... CONCLUSION RTT150 optical observations with sub-arcsecond seeing and low resolution spectra confirm the hypothesis of superposition of a radio source onto a `normal' F/G galactic star proposed by [1]. ...

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...