Class information for:
Level 1: X RAYS GALAXIES//GALAXIES SEYFERT//GALAXIES ACTIVE

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
1813 2405 42.0 75%


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 GALAXIES Author keyword 185 21% 32% 773
2 GALAXIES SEYFERT Author keyword 177 25% 25% 605
3 GALAXIES ACTIVE Author keyword 136 11% 50% 1210
4 X RAYS GALAXIES Author keyword 126 27% 16% 394
5 GALAXIES SEYFERT Author keyword 64 23% 10% 243
6 GALAXIES INDIVIDUAL MCG 6 30 15 Author keyword 56 85% 1% 29
7 GALAXIES INDIVIDUAL MCG 6 30 15 Author keyword 38 89% 1% 17
8 GALAXIES INDIVIDUAL NGC 3516 Author keyword 27 71% 1% 22
9 GALAXIES INDIVIDUAL NGC 3783 Author keyword 27 74% 1% 20
10 GALAXIES INDIVIDUAL MCG 6 30 15 Author keyword 24 82% 1% 14

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 GALAXIES 185 21% 32% 773 Search X+RAYS++GALAXIES Search X+RAYS++GALAXIES
2 GALAXIES SEYFERT 177 25% 25% 605 Search GALAXIES++SEYFERT Search GALAXIES++SEYFERT
3 GALAXIES ACTIVE 136 11% 50% 1210 Search GALAXIES++ACTIVE Search GALAXIES++ACTIVE
4 X RAYS GALAXIES 126 27% 16% 394 Search X+RAYS+GALAXIES Search X+RAYS+GALAXIES
5 GALAXIES SEYFERT 64 23% 10% 243 Search GALAXIES+SEYFERT Search GALAXIES+SEYFERT
6 GALAXIES INDIVIDUAL MCG 6 30 15 56 85% 1% 29 Search GALAXIES++INDIVIDUAL++MCG+6+30+15 Search GALAXIES++INDIVIDUAL++MCG+6+30+15
7 GALAXIES INDIVIDUAL MCG 6 30 15 38 89% 1% 17 Search GALAXIES++INDIVIDUAL+MCG+6+30+15 Search GALAXIES++INDIVIDUAL+MCG+6+30+15
8 GALAXIES INDIVIDUAL NGC 3516 27 71% 1% 22 Search GALAXIES++INDIVIDUAL+NGC+3516 Search GALAXIES++INDIVIDUAL+NGC+3516
9 GALAXIES INDIVIDUAL NGC 3783 27 74% 1% 20 Search GALAXIES++INDIVIDUAL+NGC+3783 Search GALAXIES++INDIVIDUAL+NGC+3783
10 GALAXIES INDIVIDUAL MCG 6 30 15 24 82% 1% 14 Search GALAXIES+INDIVIDUAL+MCG+6+30+15 Search GALAXIES+INDIVIDUAL+MCG+6+30+15

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 COLD MATTER 302 65% 12% 289
2 MCG 6 30 15 219 69% 8% 186
3 SEYFERT 1 GALAXIES 164 43% 12% 288
4 ACTIVE GALACTIC NUCLEI 142 11% 52% 1253
5 IRON K 91 94% 1% 32
6 X RAY REFLECTION 90 51% 5% 126
7 1H 0707 495 89 92% 1% 35
8 COMPTON REFLECTION 87 68% 3% 77
9 IRON LINE 77 42% 6% 140
10 WARM ABSORBER 77 68% 3% 67

Journals

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
An XMM-Newton survey of broad iron lines in Seyfert galaxies 2007 214 133 89%
ASCA observations of Seyfert 1 galaxies. III. The evidence for absorption and emission due to photoionized gas 1998 260 123 76%
Relativistic X-ray lines from the inner accretion disks around black holes 2007 167 132 68%
Measuring Black Hole Spin Using X-Ray Reflection Spectroscopy 2014 19 69 54%
Broad iron lines in active Galactic nuclei 2000 254 72 76%
X-ray absorption and reflection in active galactic nuclei 2009 79 244 80%
A comprehensive spectral and variability study of narrow-line Seyfert 1 galaxies observed by ASCA. II. Spectral analysis and correlations 1999 202 105 60%
A long hard look at MCG-6-30-15 with XMM-Newton - II. Detailed EPIC analysis and modelling 2004 112 111 89%
The soft X-ray properties of a complete sample of optically selected quasars .2. Final results 1997 391 80 60%
A structure for quasars 2000 416 102 37%

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 DEP ASTROFIS 22 68% 0.8% 19
2 XRAY ASTRON GRP 14 31% 1.6% 38
3 ASTROBIOL CSIC INTA 12 45% 0.9% 21
4 XMM NEWTON SCI OPERAT 10 22% 1.7% 41
5 PHYS GEOG SCI 10 14% 2.6% 63
6 ASTRON OFF 8 45% 0.6% 14
7 XRAY OBSERVAT ASTRON GRP 7 28% 0.9% 22
8 RSSD ESA 4 75% 0.1% 3
9 DTU SPACE SPACE 4 29% 0.5% 12
10 ASTROPHYS COMPUTAT SCI 3 14% 1.0% 23

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000289307 QUASARS EMISSION LINES//QUASARS EMISSION LINES//GALAXIES SEYFERT
2 0.0000169144 BLACK HOLE PHYSICS//X RAYS BINARIES//STARS INDIVIDUAL CYGNUS X 1
3 0.0000161264 QUASARS GENERAL//QUASARS GENERAL//QUASARS ABSORPTION LINES
4 0.0000161255 GALAXIES SEYFERT//GALAXIES INDIVIDUAL NGC 1068//GALAXIES NUCLEI
5 0.0000137852 X RAYS DIFFUSE BACKGROUND//QUASARS GENERAL//X RAYS GALAXIES
6 0.0000107325 RADIATION DRAG//ASTROPHYSICAL JETS//ASTRON ASTROPHYS PROGRAMME
7 0.0000069921 BL LACERTAE OBJECTS GENERAL//BL LACERTAE OBJECTS GENERAL//GALAXIES ACTIVE
8 0.0000062472 GALAXIES INDIVIDUAL CENTAURUS A//GALAXIES INDIVIDUAL CENTAURUS A//GALAXIES INDIVIDUAL NGC 5128
9 0.0000057702 GALAXIES INDIVIDUAL NGC 4258//MASERS//GALAXIES INDIVIDUAL NGC 3079
10 0.0000051225 QUASI MOSAICITY//LAUE LENS//HARD X RAY POLARIMETRY