Class information for:
Level 1: QUASARS EMISSION LINES//GALAXIES ACTIVE//QUASARS GENERAL

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
1637 2560 44.9 72%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
19 4 ASTRONOMY & ASTROPHYSICS//ASTROPHYSICAL JOURNAL//ASTRON 523489
8 3       ASTRONOMY & ASTROPHYSICS//ASTROPHYSICAL JOURNAL//MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 146114
215 2             X RAYS BINARIES//BLACK HOLE PHYSICS//ACCRETION ACCRETION DISKS 20680
1637 1                   QUASARS EMISSION LINES//GALAXIES ACTIVE//QUASARS GENERAL 2560

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 QUASARS EMISSION LINES authKW 2774494 20% 46% 505
2 GALAXIES ACTIVE authKW 994558 39% 8% 991
3 QUASARS GENERAL authKW 903548 22% 14% 556
4 GALAXIES SEYFERT authKW 728354 18% 13% 461
5 QUASARS ABSORPTION LINES authKW 587581 13% 15% 340
6 GALAXIES NUCLEI authKW 460507 17% 9% 424
7 GALAXIES INDIVIDUAL NGC 5548 authKW 375748 2% 57% 55
8 ULTRAVIOLET GALAXIES authKW 177227 5% 12% 126
9 ASTROPHYSICAL JOURNAL journal 174869 42% 1% 1070
10 ASTRONOMY & ASTROPHYSICS WoSSC 148882 98% 1% 2513

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 Astronomy & Astrophysics 148882 98% 1% 2513
2 Engineering, Aerospace 7 0% 0% 12
3 Poetry 2 0% 0% 1
4 Meteorology & Atmospheric Sciences 2 1% 0% 25
5 Multidisciplinary Sciences -1 0% 0% 4
6 Geosciences, Multidisciplinary -2 1% 0% 25
7 Physics, Multidisciplinary -5 1% 0% 34
8 Physics, Fluids & Plasmas -11 0% 0% 2
9 Spectroscopy -15 0% 0% 2
10 Geochemistry & Geophysics -17 0% 0% 1

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ASTRON 88994 27% 1% 685
2 WISE OBSERV 67214 2% 12% 46
3 CRIMEAN 61060 1% 39% 13
4 COSMOL ASTROPARTICLE PHYS 40656 2% 6% 53
5 GALAXIES COSMOL 40234 2% 8% 45
6 CRIMEAN BRANCH 38740 1% 25% 13
7 FOUNTAINWOOD OBSERV 35778 0% 100% 3
8 PHYS FJS 149 35778 0% 100% 3
9 ASTROFIS VALPARAISO 35772 0% 50% 6
10 YUGOSLAVIA BRANCH 30818 1% 17% 15

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 ASTROPHYSICAL JOURNAL 174869 42% 1% 1070
2 MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 49983 17% 1% 430
3 ASTRONOMY & ASTROPHYSICS 19308 11% 1% 288
4 ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 16247 3% 2% 80
5 ASTRONOMICAL JOURNAL 9599 4% 1% 108
6 IAU SYMPOSIA 8619 3% 1% 76
7 NEW ASTRONOMY REVIEWS 6061 1% 2% 25
8 PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 5595 2% 1% 50
9 ASTRONOMICHESKII ZHURNAL 5030 1% 1% 30
10 ASTROPHYSICAL JOURNAL LETTERS 4567 2% 1% 49

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 QUASARS EMISSION LINES 2774494 20% 46% 505 Search QUASARS+EMISSION+LINES Search QUASARS+EMISSION+LINES
2 GALAXIES ACTIVE 994558 39% 8% 991 Search GALAXIES+ACTIVE Search GALAXIES+ACTIVE
3 QUASARS GENERAL 903548 22% 14% 556 Search QUASARS+GENERAL Search QUASARS+GENERAL
4 GALAXIES SEYFERT 728354 18% 13% 461 Search GALAXIES+SEYFERT Search GALAXIES+SEYFERT
5 QUASARS ABSORPTION LINES 587581 13% 15% 340 Search QUASARS+ABSORPTION+LINES Search QUASARS+ABSORPTION+LINES
6 GALAXIES NUCLEI 460507 17% 9% 424 Search GALAXIES+NUCLEI Search GALAXIES+NUCLEI
7 GALAXIES INDIVIDUAL NGC 5548 375748 2% 57% 55 Search GALAXIES+INDIVIDUAL+NGC+5548 Search GALAXIES+INDIVIDUAL+NGC+5548
8 ULTRAVIOLET GALAXIES 177227 5% 12% 126 Search ULTRAVIOLET+GALAXIES Search ULTRAVIOLET+GALAXIES
9 LINE PROFILES 130000 7% 7% 168 Search LINE+PROFILES Search LINE+PROFILES
10 GALAXIES QUASARS EMISSION LINES 122164 1% 41% 25 Search GALAXIES+QUASARS+EMISSION+LINES Search GALAXIES+QUASARS+EMISSION+LINES

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 SULENTIC, JW , MARZIANI, P , DULTZIN-HACYAN, D , (2000) PHENOMENOLOGY OF BROAD EMISSION LINES IN ACTIVE GALACTIC NUCLEI.ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS. VOL. 38. ISSUE . P. 521 -571 202 67% 200
2 DE ROSA, G , PETERSON, BM , ELY, J , KRISS, GA , CRENSHAW, DM , HORNE, K , KORISTA, KT , NETZER, H , POGGE, RW , AREVALO, P , ET AL (2015) SPACE TELESCOPE AND OPTICAL REVERBERATION MAPPING PROJECT. I. ULTRAVIOLET OBSERVATIONS OF THE SEYFERT 1 GALAXY NGC 5548 WITH THE COSMIC ORIGINS SPECTROGRAPH ON HUBBLE SPACE TELESCOPE.ASTROPHYSICAL JOURNAL. VOL. 806. ISSUE 1. P. - 83 77% 10
3 NEGRETE, CA , DULTZIN, D , MARZIANI, P , SULENTIC, JW , (2014) A NEW METHOD TO OBTAIN THE BROAD LINE REGION SIZE OF HIGH REDSHIFT QUASARS.ASTROPHYSICAL JOURNAL. VOL. 794. ISSUE 1. P. - 84 87% 4
4 DU, P , HU, C , LU, KX , HUANG, YK , CHENG, C , QIU, J , LI, YR , ZHANG, YW , FAN, XL , BAI, JM , ET AL (2015) SUPERMASSIVE BLACK HOLES WITH HIGH ACCRETION RATES IN ACTIVE GALACTIC NUCLEI. IV. H BETA TIME LAGS AND IMPLICATIONS FOR SUPER-EDDINGTON ACCRETION.ASTROPHYSICAL JOURNAL. VOL. 806. ISSUE 1. P. - 82 76% 9
5 MARZIANI, P , SULENTIC, JW , PLAUCHU-FRAYN, I , DEL OLMO, A , (2013) IS MGII LAMBDA 2800 A RELIABLE VIRIAL BROADENING ESTIMATOR FOR QUASARS?.ASTRONOMY & ASTROPHYSICS. VOL. 555. ISSUE . P. - 89 79% 10
6 GASKELL, CM , GOOSMANN, RW , (2016) THE CASE FOR INFLOW OF THE BROAD-LINE REGION OF ACTIVE GALACTIC NUCLEI.ASTROPHYSICS AND SPACE SCIENCE. VOL. 361. ISSUE 2. P. - 70 86% 2
7 GOAD, MR , KORISTA, KT , RUFF, AJ , (2012) THE BROAD EMISSION-LINE REGION: THE CONFLUENCE OF THE OUTER ACCRETION DISC WITH THE INNER EDGE OF THE DUSTY TORUS.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. VOL. 426. ISSUE 4. P. 3086-3111 90 74% 32
8 LI, YR , WANG, JM , HO, LC , DU, P , BAI, JM , (2013) A BAYESIAN APPROACH TO ESTIMATE THE SIZE AND STRUCTURE OF THE BROAD-LINE REGION IN ACTIVE GALACTIC NUCLEI USING REVERBERATION MAPPING DATA.ASTROPHYSICAL JOURNAL. VOL. 779. ISSUE 2. P. - 86 81% 9
9 SCHIMOIA, JS , SIEGEL, M , SPENCER, M , STARKEY, D , SUNG, HI , TEEMS, KG , TREU, T , TURNER, CS , UTTLEY, P , VILLFORTH, C , ET AL (2016) SPACE TELESCOPE AND OPTICAL REVERBERATION MAPPING PROJECT. III. OPTICAL CONTINUUM EMISSION AND BROADBAND TIME DELAYS IN NGC 5548.ASTROPHYSICAL JOURNAL. VOL. 821. ISSUE 1. P. - 68 67% 7
10 ZHANG, XG , (2013) CORRELATION BETWEEN THE LINE WIDTH AND THE LINE FLUX OF THE DOUBLE-PEAKED BROAD H ALPHA OF 3C390.3.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. VOL. 429. ISSUE 3. P. 2274-2286 82 87% 1

Classes with closest relation at Level 1


Rank Class id link
1 1235 X RAYS GALAXIES//GALAXIES SEYFERT//GALAXIES ACTIVE
2 963 QUASARS GENERAL//GALAXIES ACTIVE//X RAYS GALAXIES
3 193 GALAXIES SEYFERT//GALAXIES NUCLEI//INFRARED GALAXIES
4 6427 QUASARS GENERAL//ASTRONOMY & ASTROPHYSICS//QUASARS
5 11304 BLACK HOLE PHYSICS//GALAXIES NUCLEI//QUASARS INDIVIDUAL SDSS J153636220441270
6 142 BL LACERTAE OBJECTS GENERAL//GALAXIES JETS//GALAXIES ACTIVE
7 1383 QUASARS ABSORPTION LINES//INTERGALACTIC MEDIUM//GALAXIES QUASARS ABSORPTION LINES
8 2855 GRAVITATIONAL LENSING//GRAVITATIONAL LENSING STRONG//QUASARS INDIVIDUAL Q22370305
9 35139 3D SPECTROSCOPY OF GALAXIES VELOCITY FIELD HII REGIONS//CATALOGS ACTIVE//FOLLOW UP OBSERVATIONS
10 5581 BLACK HOLE PHYSICS//ACCRETION ACCRETION DISKS//ACCRETION DISKS

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