منابع مشابه
Radio continuum imaging of FIR luminous
We present sensitive imaging at 1.4 GHz of the two highest redshift far-infrared (FIR) luminous QSOs SDSS J114816.65+525150.2 (z = 6.42) and SDSS J104845.05+463718.3 (z = 6.2). Radio continuum emission is detected from J1148+5251 with S1.4 = 55 ± 12μJy, while J1048+4637 is marginally detected with S1.4 = 26±12μJy. Comparison of the radio and FIR luminosities shows that both sources follow the r...
متن کاملRadio Agns among Luminous Infrared Galaxies
An analysis of radio and FIR emission in over 1500 IRAS selected galaxies produces a good linear correlation between radio and FIR luminosity, indicating that star formation in normal eld galaxies dominates the infrared luminosity in the local volume. Galaxies with clear radio-excess (deened as having at least 5 times larger radio ux over expected from FIR) are identiied as hosting a radio AGN,...
متن کاملIntra-night Optical Variability of Luminous Radio Quiet QSOs
In the present paper we report the detection of intra-night variability in some of the radio-quiet quasi-stellar objects (RQQSOs) and one lobe dominated radio-loud quasi-stellar object (LDQ). To study intra-night variability, we carried out photometric monitoring of seven RQQSOs and one LDQ in Johnson V-passband using 1.2 meter optical/IR telescope at Gurushikhar, Mount Abu, India. Observations...
متن کاملRadio images of four luminous blue variable stars
We have used the Australia Telescope Compact Array to image four southern luminous blue variable stars: AG Car, He3-519, HR Car and WRA 751, at wavelengths of 3 and 6 cm, and resolutions of 1 and 2 arcsec respectively. With the partial exception of HR Car, all radio images show an unresolved stellar core surrounded by a large ionized gaseous nebula, and agree well with published Ha and [N II] o...
متن کاملThe host galaxies of luminous radio - quiet quasars
We present the results of a deep K-band imaging study which reveals the host galaxies around a sample of 14 luminous radio-quiet quasars. The K-band images, obtained at UKIRT, are of sufficient quality to allow accurate modelling of the underlying host galaxy. Initially, the basic structure of the hosts is revealed using a modified Clean deconvolution routine optimised for this analysis. Two of...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1917
ISSN: 0036-8733
DOI: 10.1038/scientificamerican08251917-126supp