[PDF] Top 20 On the selection of high-z quasars using LOFAR observations
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On the selection of high-z quasars using LOFAR observations
... candidate quasars are unresolved, not close to a bright neighbor and not ...the quasars photometry and to filter out contaminants from our ...candidate quasars SEDs from our ... See full document
9
Mid-infrared luminous quasars in the GOODS-Herschel fields: a large population of heavily obscured, Compton-thick quasars at z approximate to 2
... SMBH, observations in this band can poten- tially identify the elusive CT AGN missed by X-ray surveys ...the selection of AGN in the MIR band is almost unbiased against obscured ...of using the IR ... See full document
21
LOFAR-Boötes: properties of high- and low-excitation radio galaxies at 0.5 < z < 2.0
... large high-redshift samples requires a method independent from spectroscopy for the separation of HERGs and ...Quasar- selection techniques based on Mid-infrared (MIR) colours (Stern et ...all high ... See full document
25
LOFAR Discovery of a Radio Halo in the High-redshift Galaxy Cluster PSZ2 G099.86+58.45
... the high-redshift galaxy cluster PSZ2 G099.86+58.45 (z = ...(JVLA) observations, which enable us to constrain the radio spectral index to be α < ∼ ...at high redshift depends strongly on ... See full document
6
First Data Release of the COSMOS Lyα Mapping and Tomography Observations: 3D Lyα Forest Tomography at 2.05 < z < 2.55
... a high-confidence redshift de- rived from multiple spectral ...redshifts z > 2 (Figure 4). These high-redshift sources can be further classified into 262 galaxies (95%) and 15 broad-line ... See full document
20
Euclid preparation. V. Predicted yield of redshift 7 z 9 quasars from the wide survey
... of z = 24.1 by DR1; hence, selection will be somewhat worse over z = 7 – 8 than assumed in ...< z < 9, which would potentially include the first discoveries at z > 8, from the ... See full document
18
Dust in high-z radio-loud AGN
... ing quasars as astrometric reference sources and the absolute flux calibration was achieved by observing the planet ...The observations were made in beam-switching mode with a beam throw of 70 00 , and the ... See full document
10
First discoveries of z > 6 quasars with the DECam Legacy Survey and UKIRT hemisphere survey
... evolution. High-redshift quasars are the most promising tracers with which to address these issues ( ...their selection is heavily contaminated by cool ...100 quasars at z ... See full document
8
LOFAR observations of the XMM-LSS field
... Previous observations with LOFAR have shown that us- ing the Dutch stations with no direction-dependent cal- ibration, ∼ 20 − 25” resolution high quality images are achievable ...area LOFAR ... See full document
24
LoTSS/HETDEX: Optical quasars. I. Low-frequency radio properties of optically selected quasars
... the LOFAR H-ATLAS/NGP survey to investigate the low-frequency radio properties of op- tically selected quasars from the Sloan Digital Sky Survey – Baryon Oscillation Spectroscopic Survey (SDSS-BOSS; Pâris ... See full document
17
LOFAR VLBI studies at 55 MHz of 4C 43.15, a z = 2.4 radio galaxy
... and high-redshift sources is that the cosmic microwave background (CMB) temper- ature is higher, and could provide more inverse Compton losses at high frequencies from scattering with CMB ...at high ... See full document
12
Unveiling Cosmic Dawn: the synergetic role of space and ground-based telescopes
... of z > 7 galaxies and quasars will come from the planned near infrared missions of the next decade, JWST, Euclid and WFIRST, in combination with wide field optical surveys from space (Euclid) and from ... See full document
8
XMM-Newton observations of Extremely Red Objects and the link with luminous, X-ray obscured quasars
... at high redshifts is the most likely mechanism to explain the observed X-ray to optical ...+ z) ...a high-z AGN can be strongly reduced, and the observed magnitudes are mainly due to starlight ... See full document
13
Simulating the 21 cm forest detectable with LOFAR and SKA in the spectra of high z GRBs
... e.g. high-z quasars, similarly to what is presently done at lower redshift with the Ly α forest (for a review see Meiksin ...of high- z radio-loud sources ...at z = ... See full document
5
The Lockman Hole project: LOFAR observations and spectral index properties of low-frequency radio sources
... frequencies. LOFAR is therefore an ideal instrument to detect these ...including high- z ( z > 2) radio galaxies (HzRGs; Blumenthal & Miley 1979; Miley & De Breuck 2008), remnant ... See full document
24
Discovery of 16 new z ∼ 5 5 quasars: filling in the redshift gap of quasar color selection
... ( z > 5 ) quasars are important tracers to study the early ...and high contaminants from cool dwarfs when using color ...300,000 quasars are now known ( ...290 quasars are ... See full document
10
Studies on the Selection of Plastic Woven Sacks for Storage of Food Commodities
... polymers, selection of alternatives to jute sacks or most suitable packaging material can ultimately result in improved shelf-life and better quality while reducing costs, particularly by avoiding undue food ... See full document
6
Initial deep LOFAR observations of epoch of reionization windows. I. The north celestial pole
... In order to efficiently and accurately solve the multi-source calibration problem, we have developed algorithms and soft- ware based on Expectation Maximization (Yatawatta et al. 2009, 2012; Kazemi et al. 2011b). We have ... See full document
17
Scanning electron microscope observations on the morphology of Tylenchorhynchus aduncus
... The main additional characters to those already report- ed for this species are irregular areolations only on the anterior part of the lateral field, the much mo[r] ... See full document
8
Observations on the Oxygen Uptake of Isolated Plant Tissue: II. The Effect of Inhibitors
... The three treated samples were allowed to respire for one hour in an M/300 solution of cyanide in M/30 phosphate, when their average oxygen uptake was 8 /¿l./gm./hr., giving an inhibi[r] ... See full document
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