Class information for:
Level 1: STARS PRE MAIN SEQUENCE//PROTOPLANETARY DISKS//CIRCUMSTELLAR MATTER

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
119 4310 50.2 73%


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
19 3       ASTRONOMY & ASTROPHYSICS//ASTROPHYSICAL JOURNAL//ASTRON 118981
239 2             PLANETARY SYSTEMS//STARS PRE MAIN SEQUENCE//PLANETS AND SATELLITES FORMATION 20042
119 1                   STARS PRE MAIN SEQUENCE//PROTOPLANETARY DISKS//CIRCUMSTELLAR MATTER 4310

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 STARS PRE MAIN SEQUENCE authKW 7456120 51% 48% 2179
2 PROTOPLANETARY DISKS authKW 1823793 14% 44% 582
3 CIRCUMSTELLAR MATTER authKW 1262683 22% 19% 935
4 STARS VARIABLES T TAURI HERBIG AE BE authKW 1049742 4% 78% 189
5 PLANETARY SYSTEMS PROTOPLANETARY DISKS authKW 749501 6% 43% 248
6 STARS FORMATION authKW 547089 19% 9% 829
7 INFRARED STARS authKW 362678 10% 12% 420
8 ACCRETION ACCRETION DISKS authKW 309446 12% 8% 533
9 STARS CIRCUMSTELLAR MATTER authKW 264242 5% 19% 197
10 ASTRONOMY & ASTROPHYSICS WoSSC 254178 99% 1% 4260

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 254178 99% 1% 4260
2 Engineering, Ocean -1 0% 0% 1
3 Engineering, Aerospace -1 0% 0% 6
4 Multidisciplinary Sciences -8 0% 0% 2
5 History -12 0% 0% 1
6 Geosciences, Multidisciplinary -17 1% 0% 24
7 Oceanography -19 0% 0% 1
8 Meteorology & Atmospheric Sciences -20 0% 0% 7
9 Geochemistry & Geophysics -26 0% 0% 3
10 Computer Science, Interdisciplinary Applications -28 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 186892 30% 2% 1287
2 UMI FCA 132379 1% 69% 27
3 EXOPLANETS STELLAR ASTROPHYS 109997 1% 30% 52
4 LEIDEN OBSERV 103853 5% 8% 194
5 ASTROPHYS GRENOBLE 83744 1% 18% 64
6 VV SOBOLEV ASTRON 76950 1% 45% 24
7 RADIOASTRON ASTROFIS 76922 2% 14% 77
8 UMR 5571 72790 1% 21% 50
9 IPAG 62010 2% 10% 84
10 PROMOT INTEGRATED SCI 60426 0% 53% 16

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 ASTRONOMY & ASTROPHYSICS 185333 27% 2% 1148
2 ASTROPHYSICAL JOURNAL 154976 30% 2% 1310
3 ASTRONOMICAL JOURNAL 69156 9% 3% 374
4 ASTROPHYSICAL JOURNAL LETTERS 30708 4% 3% 164
5 MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 20336 8% 1% 359
6 ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS 19117 2% 3% 79
7 IAU SYMPOSIA 10304 3% 1% 108
8 REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA 8070 1% 3% 38
9 ASTROPHYSICS 7719 0% 7% 16
10 ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES 6436 1% 2% 58

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 STARS PRE MAIN SEQUENCE 7456120 51% 48% 2179 Search STARS+PRE+MAIN+SEQUENCE Search STARS+PRE+MAIN+SEQUENCE
2 PROTOPLANETARY DISKS 1823793 14% 44% 582 Search PROTOPLANETARY+DISKS Search PROTOPLANETARY+DISKS
3 CIRCUMSTELLAR MATTER 1262683 22% 19% 935 Search CIRCUMSTELLAR+MATTER Search CIRCUMSTELLAR+MATTER
4 STARS VARIABLES T TAURI HERBIG AE BE 1049742 4% 78% 189 Search STARS+VARIABLES+T+TAURI+HERBIG+AE+BE Search STARS+VARIABLES+T+TAURI+HERBIG+AE+BE
5 PLANETARY SYSTEMS PROTOPLANETARY DISKS 749501 6% 43% 248 Search PLANETARY+SYSTEMS+PROTOPLANETARY+DISKS Search PLANETARY+SYSTEMS+PROTOPLANETARY+DISKS
6 STARS FORMATION 547089 19% 9% 829 Search STARS+FORMATION Search STARS+FORMATION
7 INFRARED STARS 362678 10% 12% 420 Search INFRARED+STARS Search INFRARED+STARS
8 ACCRETION ACCRETION DISKS 309446 12% 8% 533 Search ACCRETION+ACCRETION+DISKS Search ACCRETION+ACCRETION+DISKS
9 STARS CIRCUMSTELLAR MATTER 264242 5% 19% 197 Search STARS+CIRCUMSTELLAR+MATTER Search STARS+CIRCUMSTELLAR+MATTER
10 STARS INDIVIDUAL TW HYA 242406 1% 93% 37 Search STARS+INDIVIDUAL+TW+HYA Search STARS+INDIVIDUAL+TW+HYA

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 SICILIA-AGUILAR, A , BANZATTI, A , CARMONA, A , STOLKER, T , KAMA, M , MENDIGUTIA, I , GARUFI, A , FLAHERTY, K , VAN DER MAREL, N , GREAVES, J , (2016) A 'ROSETTA STONE' FOR PROTOPLANETARY DISKS: THE SYNERGY OF MULTI-WAVELENGTH OBSERVATIONS.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA. VOL. 33. ISSUE . P. - 322 88% 0
2 ANDREWS, SM , (2015) OBSERVATIONS OF SOLIDS IN PROTOPLANETARY DISKS.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC. VOL. 127. ISSUE 956. P. 961 -993 333 63% 11
3 WILLIAMS, JP , CIEZA, LA , (2011) PROTOPLANETARY DISKS AND THEIR EVOLUTION.ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, VOL 49. VOL. 49. ISSUE . P. 67 -117 184 61% 375
4 HARTMANN, L , HERCZEG, G , CALVET, N , (2016) ACCRETION ONTO PRE-MAIN-SEQUENCE STARS.ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, VOL 54. VOL. 54. ISSUE . P. 135 -180 209 72% 2
5 WRIGHT, CM , MADDISON, ST , WILNER, DJ , BURTON, MG , LOMMEN, D , VAN DISHOECK, EF , PINILLA, P , BOURKE, TL , MENARD, F , WALSH, C , (2015) RESOLVING STRUCTURE OF THE DISC AROUND HD100546 AT 7 MM WITH ATCA.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. VOL. 453. ISSUE 1. P. 414 -438 200 80% 5
6 OWEN, JE , (2016) THE ORIGIN AND EVOLUTION OF TRANSITION DISCS: SUCCESSES, PROBLEMS, AND OPEN QUESTIONS.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA. VOL. 33. ISSUE . P. - 116 83% 8
7 ANDREWS, SM , WILNER, DJ , ESPAILLAT, C , HUGHES, AM , DULLEMOND, CP , MCCLURE, MK , QI, CH , BROWN, JM , (2011) RESOLVED IMAGES OF LARGE CAVITIES IN PROTOPLANETARY TRANSITION DISKS.ASTROPHYSICAL JOURNAL. VOL. 732. ISSUE 1. P. - 147 67% 224
8 ANDREWS, SM , ROSENFELD, KA , KRAUS, AL , WILNER, DJ , (2013) THE MASS DEPENDENCE BETWEEN PROTOPLANETARY DISKS AND THEIR STELLAR HOSTS.ASTROPHYSICAL JOURNAL. VOL. 771. ISSUE 2. P. - 151 66% 106
9 CASASSUS, S , (2016) RESOLVED OBSERVATIONS OF TRANSITION DISKS.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA. VOL. 33. ISSUE . P. - 115 82% 4
10 ARDILA, DR , HERCZEG, GJ , GREGORY, SG , INGLEBY, L , FRANCE, K , BROWN, A , EDWARDS, S , JOHNS-KRULL, C , LINSKY, JL , YANG, H , ET AL (2013) HOT GAS LINES IN T TAURI STARS.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES. VOL. 207. ISSUE 1. P. - 140 81% 18

Classes with closest relation at Level 1


Rank Class id link
1 1744 ISM JETS AND OUTFLOWS//ISM HERBIG HARO OBJECTS//HERBIG HARO OBJECTS
2 8804 CIRCUMSTELLAR MATTER//STARS INDIVIDUAL BETA PICTORIS//STARS INDIVIDUAL FOMALHAUT
3 700 STARS LOW MASS BROWN DWARFS//BROWN DWARFS//STARS LOW MASS
4 1170 STARS FORMATION//ISM CLOUDS//ISM GLOBULES
5 4398 INSTABILITIES//PROTOPLANETARY DISKS//ACCRETION ACCRETION DISKS
6 15017 ISM GLOBULES//ISM INDIVIDUAL OBJECTS NGC 3372//H II REGIONS
7 3376 PLANETS AND SATELLITES FORMATION//PLANETARY SYSTEMS FORMATION//PLANET DISK INTERACTIONS
8 35803 STARS INDIVIDUAL EPSILON AURIGAE//STARS INDIVIDUAL 1SWASP J14074793 3945426 ASAS J140748 39457//EE CEP
9 6429 ISM INDIVIDUAL ORION NEBULA//ISM INDIVIDUAL OBJECTS ORION NEBULA//H II REGIONS
10 370 STARS ACTIVITY//STARS CORONAE//STARS LATE TYPE

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