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Related papers: Sub-mm detection of a high redshift Type 2 QSO

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We present the first sub-arcsecond radio observations of the nearby dwarf starburst galaxy NGC 3077 obtained with the MERLIN interferometer. We have detected two resolved sources which are coincident with the positions of two discrete X-ray…

Astrophysics · Physics 2009-11-13 Daniel Rosa-Gonzalez

We present selected results on the X-ray spectroscopy of distant, obscured AGN as obtained with the ultra-deep (~3 Ms) XMM-Newton survey in the Chandra Deep Field South (CDF-S). One of the primary goals of the project is to characterize the…

Cosmology and Nongalactic Astrophysics · Physics 2013-04-15 Andrea Comastri , the XMM-CDFS team

New molecular (13CO J=3-2) and dust continuum (450 and 850 micron) SCUBA maps of the NGC7129 star forming region are presented, complemented by C18O J=3-2 spectra at several positions within the mapped region. The maps include the Herbig…

Astrophysics · Physics 2009-10-31 Andreea S. Font , George F. Mitchell , Goeran Sandell

We report on new Chandra exploratory observations of six candidate Type 2 quasars at z=0.49-0.73 selected among the most [OIII] luminous emitters from the Sloan Digital Sky Survey (SDSS). Under the assumption that [OIII] is a proxy for the…

Astrophysics · Physics 2009-11-11 C. Vignali , D. M. Alexander , A. Comastri

We present detections of emission at 250 GHz (1.2 mm) from two high redshift QSOs from the Sloan Digital Sky Survey sample using the bolometer array at the IRAM 30m telescope. The sources are SDSSp 015048.83+004126.2 at z = 3.7, and SDSSp…

We present results from an XMM-Newton observation of the nearby Seyfert 2 galaxy NGC5643. The nucleus exhibits a very flat X-ray continuum above 2 keV, together with a prominent K-alpha fluorescent iron line. This indicates heavy…

Astrophysics · Physics 2009-11-10 M. Guainazzi , P. Rodriguez-Pascual , A. C. Fabian , K. Iwasawa , G. Matt

We present catalogs for the ~2 Ms Chandra Deep Field-North, currently the deepest X-ray observation of the Universe in the 0.5-8.0 keV band. Five hundred and three (503) X-ray sources are detected over an ~448 sq.arcmin area in up to seven…

This white paper emphasizes the potential of QSO absorption lines in the rest-frame far/extreme UV at rest-frame wavelengths from ~500 to 2000 A. In this wavelength range, species such as Ne VIII, Na IX, and Mg X can be detected, providing…

Cosmology and Nongalactic Astrophysics · Physics 2013-03-04 Todd Tripp

Recent X-ray surveys with Chandra and XMM-Newton have found several genuine Type II quasars, the long sought-after population of high-luminosity (high-redshift) Seyfert 2 galaxies, and a sizable number of Type II quasar candidates. However,…

Astrophysics · Physics 2007-05-23 C. Vignali , D. M. Alexander , A. Comastri

We present the multi-wavelength counterparts of 850-$\mu$m selected submillimetre sources over a 2-deg$^2$ field centred on the North Ecliptic Pole. In order to overcome the large beam size (15 arcsec) of the 850-$\mu$m images, deep optical…

We report the serendipitous detection of two 3 mm continuum sources found in deep ALMA Band 3 observations to study intermediate redshift galaxies in the COSMOS field. One is near a foreground galaxy at 1.3", but is a previously unknown…

We report the discovery of a group of galaxies at redshift 2.38. We imaged about 10% of a claimed supercluster of QSO absorption-lines at z=2.38 (Francis & Hewett 1993). In this small field (2 arcmin radius) we detect two Ly-alpha emitting…

We report observations of three SDSS z>6 QSOs at 250 GHz (1.2mm) using the 117-channel Max-Planck Millimeter Bolometer (MAMBO-2) array at the IRAM 30-meter telescope. J1148+5251 (z=6.41) and J1048+4637 (z=6.23) were detected with 250 GHz…

Astrophysics · Physics 2009-11-07 F. Bertoldi , C. L. Carilli , P. Cox , X. Fan , M. A. Strauss , A. Beelen , A. Omont , R. Zylka

A significant fraction of the sub-damped Lyman-alpha (sub-DLA) absorption systems in quasar spectra appear to be metal-rich, many with even super-solar element abundances. This raises the question whether some sub-DLAs may harbor active…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-24 G. Chartas , V. P. Kulkarni , A. Asper

The 30-year recurrent symbiotic nova V3890 Sgr exploded 2019 August 28 and was observed with multiple X-ray telescopes. An XMM-Newton observation during the SSS phase captured a high degree of X-ray variability including a deep dip in the…

High Energy Astrophysical Phenomena · Physics 2022-03-14 J. -U. Ness , A. P. Beardmore , P. Bezak , A. Dobrotka , J. J. Drake , B. Vander Meulen , J. P. Osborne , M. Orio , K. L. Page , C. Pinto , K. P. Singh , S. Starrfield

We present sensitive radio continuum imaging at 1.4 GHz and 4.9 GHz of seven high redshift QSOs selected for having a 240 GHz continuum detection, which is thought to be thermal dust emission. We detect radio continuum emission from four of…

Astrophysics · Physics 2009-10-31 M. S. Yun , C. L. Carilli , R. Kawabe , Y. Tutui , K. Kohno , K. Ohta

We present millimeter wavelength detections of three faint sources that are most likely high-redshift starburst galaxies. For one of the sources, which was previously discovered with SCUBA at 850 mu m, we present a detection with the IRAM…

The CDF-S is the deepest X-ray image available and will remain so for the near future. We provide a spectroscopic (64.5%; 64% with spectral classifications) and photometric redshift catalog for the full 7 Ms sample, but much of our analysis…

Astrophysics of Galaxies · Physics 2020-01-22 A. J. Barger , L. L. Cowie , F. E. Bauer , J. Gonzalez-Lopez

We report the \Suzaku/XIS and HXD and \Chandra/ACIS-I results on the X-ray spectra of the Phoenix cluster at the redshift $z=0.596$. The spectrum of the intracluster medium (ICM) is well-reproduced with the emissions from a low temperature…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Shutaro Ueda , Kiyoshi Hayashida , Naohisa Anabuki , Hiroshi Nakajima , Katsuji Koyama , Hiroshi Tsunemi

(abridged) This paper is the second part of a work investigating the properties of dusty tori in AGN by means of multi-component SED fitting. It focuses on low luminosity, low redshift (z < 0.25) AGN selected among emission line galaxies as…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Evanthia Hatziminaoglou , Jacopo Fritz , Tom Jarrett
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