Results 121 to 130 of about 6,949,336 (206)
Improved technique for quasar composite spectra generation [PDF]
Proceedings of VI European Summer School on Experimental Nuclear Astrophysics — PoS(ENAS 6), 2013 Ganna Ivashchenko +2 more
openaire +1 more source
, 2003 We present J-H-K' photometry for a sample of 45 high redshift quasars found by the Sloan Digital Sky Survey. The sample was originally selected on the basis of optical colors and spans a redshift range from 3.6 to 5.03.
D. Harbeck +19 more
core +1 more source
XMM-Newton observations of the two X-ray weak quasars PG 1411+442 and Mrk 304
, 2004 We present the results of XMM-Newton observations of two X-ray weak quasars, PG 1411+442 and Mrk 304 . In both cases the spectra can basically be represented by hard power laws with photon indices typical for radio-quiet quasars, heavily intrinsically ...
Ferrero, E. +6 more
core +1 more source
A study of algal modelling - the development and application of a general algal model in Quasar [PDF]
, 1994 H.J. de Lange
openalex
Outflow and hot dust emission in high redshift quasars
, 2013 Correlations of hot dust emission with outflow properties are investigated, based on a large z similar to 2 non-broad absorption line quasar sample built from the Wide-field Infrared Survey and the Sloan Digital Sky Survey data releases.
Wang, Tinggui +11 more
core
Evidence for quasar fast outflows being accelerated at the scale of tens of parsecs. [PDF]
Sci Adv, 2022 He Z +16 more
europepmc +1 more source
Bioinformation and Neutrino Communication. [PDF]
Bioinformation, 2022 Shapshak P.
europepmc +1 more source
Broad band energy distribution of ROSAT detected quasars. Pt. 2 Radio-quiet objects
, 1997 A database of radio-quiet quasers detected with ROSAT is presented containing 846 quasars seen in the All-Sky Survey and/or in pointed PSPC observations. About #propor to#70% of the objects have been detected in X-rays for the first time.
Siebert, J. +4 more
core