Class information for:
Level 1: X RAYS DIFFUSE BACKGROUND//QUASARS GENERAL//X RAYS GALAXIES

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
2610 2121 63.6 82%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
71 27454 GALAXIES ACTIVE//GALAXIES SEYFERT//QUASARS GENERAL

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 X RAYS DIFFUSE BACKGROUND Author keyword 74 55% 4% 92
2 QUASARS GENERAL Author keyword 63 19% 14% 293
3 X RAYS GALAXIES Author keyword 45 17% 12% 244
4 GALAXIES NUCLEI Author keyword 32 14% 10% 218
5 QUASARS GENERAL Author keyword 29 11% 12% 259
6 X RAYS GENERAL Author keyword 22 12% 8% 169
7 X RAYS DIFFUSE BACKGROUND Author keyword 19 31% 2% 52
8 GALAXIES SEYFERT Author keyword 14 11% 5% 116
9 QUASARS SUPERMASSIVE BLACK HOLES Author keyword 10 31% 1% 27
10 GALAXIES BULGES Author keyword 10 23% 2% 38

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 X RAYS DIFFUSE BACKGROUND 74 55% 4% 92 Search X+RAYS++DIFFUSE+BACKGROUND Search X+RAYS++DIFFUSE+BACKGROUND
2 QUASARS GENERAL 63 19% 14% 293 Search QUASARS+GENERAL Search QUASARS+GENERAL
3 X RAYS GALAXIES 45 17% 12% 244 Search X+RAYS+GALAXIES Search X+RAYS+GALAXIES
4 GALAXIES NUCLEI 32 14% 10% 218 Search GALAXIES+NUCLEI Search GALAXIES+NUCLEI
5 QUASARS GENERAL 29 11% 12% 259 Search QUASARS++GENERAL Search QUASARS++GENERAL
6 X RAYS GENERAL 22 12% 8% 169 Search X+RAYS++GENERAL Search X+RAYS++GENERAL
7 X RAYS DIFFUSE BACKGROUND 19 31% 2% 52 Search X+RAYS+DIFFUSE+BACKGROUND Search X+RAYS+DIFFUSE+BACKGROUND
8 GALAXIES SEYFERT 14 11% 5% 116 Search GALAXIES+SEYFERT Search GALAXIES+SEYFERT
9 QUASARS SUPERMASSIVE BLACK HOLES 10 31% 1% 27 Search QUASARS+SUPERMASSIVE+BLACK+HOLES Search QUASARS+SUPERMASSIVE+BLACK+HOLES
10 GALAXIES BULGES 10 23% 2% 38 Search GALAXIES++BULGES Search GALAXIES++BULGES

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 HELLAS2XMM SURVEY 160 81% 5% 97
2 SUPERMASSIVE BLACK HOLES 136 27% 20% 428
3 HOST GALAXIES 84 21% 17% 355
4 N LOG S 71 56% 4% 86
5 BH SIGMA RELATION 63 54% 4% 81
6 DEEP FIELD SOUTH 60 26% 9% 195
7 RAY SELECTED AGN 55 92% 1% 22
8 NORTH SURVEY 54 72% 2% 43
9 OPTICAL IDENTIFICATION 46 53% 3% 61
10 BULGE MASS 44 52% 3% 60

Journals

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
THE M-sigma AND M-L RELATIONS IN GALACTIC BULGES, AND DETERMINATIONS OF THEIR INTRINSIC SCATTER 2009 474 114 46%
Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies 2013 234 723 24%
The synthesis of the cosmic X-ray background in the Chandra and XMM-Newton era 2007 335 95 69%
Cosmic X-ray surveys of distant active galaxies The demographics, physics, and ecology of growing supermassive black holes 2015 4 489 60%
The Chandra Deep Field North survey. XIII. 2 Ms point-source catalogs 2003 542 76 68%
Local supermassive black holes, relics of active galactic nuclei and the X-ray background 2004 715 83 49%
A unified, merger-driven model of the origin of starbursts, quasars, the cosmic X-ray background, supermassive black holes, and galaxy spheroids 2006 772 268 32%
An observational determination of the bolometric quasar luminosity function 2007 407 160 46%
Absorption properties and evolution of active galactic nuclei 2008 167 128 73%
SELF-CONSISTENT MODELS OF THE AGN AND BLACK HOLE POPULATIONS: DUTY CYCLES, ACCRETION RATES, AND THE MEAN RADIATIVE EFFICIENCY 2009 148 138 62%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 YALE ASTRON ASTROPHYS 9 17% 2.3% 49
2 PUPIN S 3 37% 0.3% 7
3 SPACE COSM EVOLUT 3 12% 0.9% 19
4 BEECROFT COSMOL PARTICLE ASTROPHYS 2 67% 0.1% 2
5 MERCANTILE HOUSE 2 67% 0.1% 2
6 PHCH 2 67% 0.1% 2
7 OSSERVATORIO ASTRON BOLOGNA 2 11% 0.9% 19
8 PHYS XRAY ASTRON GRP 2 40% 0.2% 4
9 GALAXY EVOLUT 2 13% 0.6% 12
10 CU MONTE ST ANGELO 1 100% 0.1% 2

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000230729 GALAXIES INDIVIDUAL IC 2497//QUASARS INDIVIDUAL I ZW 1//GALAXIES FUNDAMENTAL PARAMETERS CLASSIFICATION COLORS LUMINOSITIES MASSES RADII ETC
2 0.0000194137 QUASARS GENERAL//QUASARS GENERAL//QUASARS ABSORPTION LINES
3 0.0000185957 GALAXIES NUCLEI//QUASARS INDIVIDUAL SDSS J153636220441270//CENTRAL COMPACT OBJECTS
4 0.0000179460 ASSOCIATED INAF//CSIRO RADIOPHYS//CYLINDRICAL PARABOLIC REFLECTORS
5 0.0000153129 QUASARS EMISSION LINES//QUASARS EMISSION LINES//GALAXIES SEYFERT
6 0.0000151823 INFRARED GALAXIES//SUBMILLIMETER GALAXIES//INFRARED GALAXIES
7 0.0000144131 GALAXIES SEYFERT//GALAXIES INDIVIDUAL NGC 1068//GALAXIES NUCLEI
8 0.0000137852 X RAYS GALAXIES//GALAXIES SEYFERT//GALAXIES ACTIVE
9 0.0000137241 GALAXIES HIGH REDSHIFT//GALAXIES EVOLUTION//GALAXIES FORMATION
10 0.0000101589 X RAYS BINARIES//GALAXIES INDIVIDUAL ESO 243 49//X RAYS INDIVIDUAL HLX 1