Class information for:
Level 2: STARS FORMATION//ISM CLOUDS//ISM MOLECULES

Basic class information
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
23 4 ASTRONOMY & ASTROPHYSICS//ASTROPHYSICAL JOURNAL//ASTRON 393400
1 3       ASTRONOMY & ASTROPHYSICS//ASTROPHYSICAL JOURNAL//ASTRON 234120
63 2             STARS FORMATION//ISM CLOUDS//ISM MOLECULES 28877
76 1                   STARS PRE MAIN SEQUENCE//PROTOPLANETARY DISKS//CIRCUMSTELLAR MATTER 4619
138 1                   STARS FORMATION//MASERS//H II REGIONS 4210
213 1                   STARS FORMATION//ISM CLOUDS//ISM MOLECULES 3938
2238 1                   ASTROCHEMISTRY//ISM MOLECULES//MOLECULAR PROCESSES 2347
2728 1                   ISM LINES AND BANDS//DUST EXTINCTION//ISM MOLECULES 2195
3728 1                   ISM CLOUDS//ISM STRUCTURE//ISM KINEMATICS AND DYNAMICS 1955
4383 1                   GALAXY HALO//ISM BUBBLES//ISM STRUCTURE 1826
5031 1                   ISM INDIVIDUAL ORION NEBULA//ISM INDIVIDUAL OBJECTS ORION KL//ISM INDIVIDUAL ORION KLEINMANN LOW 1712
5966 1                   ISM JETS AND OUTFLOWS//ISM HERBIG HARO OBJECTS//HERBIG HARO OBJECTS 1580
7411 1                   ISM ABUNDANCES//ULTRAVIOLET ISM//ISM MOLECULES 1397
11437 1                   GALAXIES MAGNETIC FIELDS//ISM MAGNETIC FIELDS//TECHNIQUES POLARIMETRIC 1009
18123 1                   ISM GLOBULES//H II REGIONS//ISM INDIVIDUAL ROSETTE NEBULA 591
19669 1                   OPEN CLUSTERS AND ASSOCIATIONS GENERAL//OPEN CLUSTERS AND ASSOCIATIONS INDIVIDUAL NGC 3603//STARS KINEMATICS AND DYNAMICS 518
22198 1                   ULTRAVIOLET ISM//ISM INDIVIDUAL IC 405//ISM INDIVIDUAL IC 63 413
24949 1                   INFRARED ABSORPTION BANDS//POLARIZANCE FRINGES IN WAVE PLATES//DUST EXTINCTION 319
27492 1                   RADIO RECOMBINATION LINES//ACTIVE DIPOLE//CII REGIONS 248

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 STARS FORMATION authKW 5165018 23% 72% 6588
2 ISM CLOUDS authKW 3312790 14% 77% 3973
3 ISM MOLECULES authKW 3276949 15% 68% 4411
4 STARS PRE MAIN SEQUENCE authKW 2947358 12% 77% 3536
5 ASTRONOMY & ASTROPHYSICS WoSSC 1511334 93% 5% 26832
6 ISM JETS AND OUTFLOWS authKW 1224225 7% 58% 1945
7 ASTROPHYSICAL JOURNAL journal 1188949 32% 12% 9370
8 ASTROCHEMISTRY authKW 1095148 5% 65% 1555
9 RADIO LINES ISM authKW 1027957 5% 68% 1388
10 ISM STRUCTURE authKW 918316 5% 65% 1301

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Astronomy & Astrophysics 1511334 93% 5% 26832
2 Physics, Atomic, Molecular & Chemical 368 3% 0% 807
3 Engineering, Aerospace 24 0% 0% 106
4 Spectroscopy -0 1% 0% 198
5 Engineering, Ocean -18 0% 0% 1
6 Computer Science, Cybernetics -24 0% 0% 1
7 Meteorology & Atmospheric Sciences -29 0% 0% 140
8 Microscopy -29 0% 0% 2
9 History & Philosophy of Science -32 0% 0% 1
10 Humanities, Multidisciplinary -37 0% 0% 1

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ASTRON 598165 21% 9% 6020
2 RADIOASTRON ASTROFIS 282031 1% 66% 391
3 LEIDEN OBSERV 216016 3% 27% 751
4 ASTROPHYS 141392 5% 10% 1381
5 ASTRON ASTROPHYS 105282 4% 8% 1261
6 PHYS ASTRON 92838 13% 2% 3882
7 UMR 8112 90881 1% 38% 222
8 ASTROPHYS SPACE ASTRON 88225 1% 26% 309
9 UMR 5804 81781 1% 36% 209
10 RAYMOND BEVERLY SACKLER ASTROPHYS 75269 0% 80% 86

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ASTROPHYSICAL JOURNAL 1188949 32% 12% 9370
2 ASTRONOMY & ASTROPHYSICS 789543 21% 12% 6092
3 MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 297291 12% 8% 3574
4 ASTRONOMICAL JOURNAL 126494 5% 9% 1311
5 IAU SYMPOSIA 98961 3% 11% 852
6 ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 71856 2% 12% 565
7 ASTROPHYSICAL JOURNAL LETTERS 63571 2% 10% 620
8 ASTROPHYSICS AND SPACE SCIENCE 60716 3% 7% 852
9 REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA 45325 1% 18% 231
10 PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 34273 1% 9% 351

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 STARS FORMATION 5165018 23% 72% 6588 Search STARS+FORMATION Search STARS+FORMATION
2 ISM CLOUDS 3312790 14% 77% 3973 Search ISM+CLOUDS Search ISM+CLOUDS
3 ISM MOLECULES 3276949 15% 68% 4411 Search ISM+MOLECULES Search ISM+MOLECULES
4 STARS PRE MAIN SEQUENCE 2947358 12% 77% 3536 Search STARS+PRE+MAIN+SEQUENCE Search STARS+PRE+MAIN+SEQUENCE
5 ISM JETS AND OUTFLOWS 1224225 7% 58% 1945 Search ISM+JETS+AND+OUTFLOWS Search ISM+JETS+AND+OUTFLOWS
6 ASTROCHEMISTRY 1095148 5% 65% 1555 Search ASTROCHEMISTRY Search ASTROCHEMISTRY
7 RADIO LINES ISM 1027957 5% 68% 1388 Search RADIO+LINES+ISM Search RADIO+LINES+ISM
8 ISM STRUCTURE 918316 5% 65% 1301 Search ISM+STRUCTURE Search ISM+STRUCTURE
9 ISM KINEMATICS AND DYNAMICS 907569 5% 62% 1335 Search ISM+KINEMATICS+AND+DYNAMICS Search ISM+KINEMATICS+AND+DYNAMICS
10 ISM ABUNDANCES 814038 5% 51% 1468 Search ISM+ABUNDANCES Search ISM+ABUNDANCES

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.

Classes with closest relation at Level 2


rank cluster_id2 link
1 1036 PLANETARY SYSTEMS//PLANETS AND SATELLITES FORMATION//TECHNIQUES RADIAL VELOCITIES
2 1 ASTRONOMY & ASTROPHYSICS//STARS ABUNDANCES//STARS FUNDAMENTAL PARAMETERS
3 0 GALAXIES EVOLUTION//ASTRONOMY & ASTROPHYSICS//GALAXIES FORMATION
4 365 BLACK HOLE PHYSICS//X RAYS BINARIES//ACCRETION ACCRETION DISKS
5 2022 JOURNAL OF MOLECULAR SPECTROSCOPY//PHYSICS, ATOMIC, MOLECULAR & CHEMICAL//NITROGEN CLUSTERS
6 544 NOVAE CATACLYSMIC VARIABLES//SUPERNOVAE GENERAL//PLANETARY NEBULAE GENERAL
7 1273 COSMIC MICROWAVE BACKGROUND//X RAYS GALAXIES CLUSTERS//GALAXIES CLUSTERS GENERAL
8 123 GAMMA RAYS BURSTS//PULSARS GENERAL//STARS NEUTRON
9 4028 DROP ANALYSIS//PUBLICATIONS BIBLIOGRAPHY//TENSIOGRAPHY
10 1022 JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS//PHYSICS, ATOMIC, MOLECULAR & CHEMICAL//PHYSICAL REVIEW A

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