Class information for:
Level 1: STARS FORMATION//MASERS//H II REGIONS

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
138 1                   STARS FORMATION//MASERS//H II REGIONS 4210

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 STARS FORMATION authKW 3095141 46% 21% 1946
2 MASERS authKW 1938112 15% 40% 642
3 H II REGIONS authKW 1867963 19% 31% 803
4 RADIO LINES ISM authKW 968505 12% 25% 514
5 ISM MOLECULES authKW 796315 20% 13% 830
6 ISM CLOUDS authKW 541010 15% 12% 613
7 ISM JETS AND OUTFLOWS authKW 527139 12% 14% 487
8 ISM HII REGIONS authKW 312322 3% 32% 131
9 STARS MASSIVE authKW 281809 4% 20% 185
10 RADIOASTRON ASTROFIS address 266488 3% 25% 145

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Astronomy & Astrophysics 249454 99% 1% 4158
2 Engineering, Aerospace -6 0% 0% 2
3 Multidisciplinary Sciences -10 0% 0% 1
4 Physics, Fluids & Plasmas -22 0% 0% 1
5 Computer Science, Artificial Intelligence -26 0% 0% 1
6 Geochemistry & Geophysics -27 0% 0% 2
7 Spectroscopy -28 0% 0% 1
8 Physics, Multidisciplinary -29 1% 0% 32
9 Meteorology & Atmospheric Sciences -30 0% 0% 1
10 Instruments & Instrumentation -36 0% 0% 2

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 RADIOASTRON ASTROFIS 266488 3% 25% 145
2 ASTRON 107169 23% 1% 972
3 MIZUSAWA VLBI OBSERV 78606 1% 31% 34
4 AUSTRALIA TELESCOPE IL 76467 3% 9% 118
5 QINGHAI STN 69658 0% 85% 11
6 RADIO ASTRON 57894 2% 8% 103
7 ASTRO SPACE 52545 2% 10% 74
8 ASTROPHYS 52117 8% 2% 319
9 PURPLE MT OBSERV 46705 3% 6% 108
10 OASU UMR5804 46627 0% 69% 9

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ASTROPHYSICAL JOURNAL 163243 31% 2% 1326
2 ASTRONOMY & ASTROPHYSICS 161570 25% 2% 1051
3 MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 59806 15% 1% 611
4 ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 31337 3% 3% 142
5 ASTRONOMY REPORTS 26448 2% 4% 86
6 ASTRONOMICAL JOURNAL 25406 5% 2% 224
7 ASTROPHYSICAL JOURNAL LETTERS 8780 2% 1% 88
8 PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 8097 2% 2% 65
9 IAU SYMPOSIA 8041 2% 1% 93
10 ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES 7287 1% 2% 60

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 STARS FORMATION 3095141 46% 21% 1946 Search STARS+FORMATION Search STARS+FORMATION
2 MASERS 1938112 15% 40% 642 Search MASERS Search MASERS
3 H II REGIONS 1867963 19% 31% 803 Search H+II+REGIONS Search H+II+REGIONS
4 RADIO LINES ISM 968505 12% 25% 514 Search RADIO+LINES+ISM Search RADIO+LINES+ISM
5 ISM MOLECULES 796315 20% 13% 830 Search ISM+MOLECULES Search ISM+MOLECULES
6 ISM CLOUDS 541010 15% 12% 613 Search ISM+CLOUDS Search ISM+CLOUDS
7 ISM JETS AND OUTFLOWS 527139 12% 14% 487 Search ISM+JETS+AND+OUTFLOWS Search ISM+JETS+AND+OUTFLOWS
8 ISM HII REGIONS 312322 3% 32% 131 Search ISM+HII+REGIONS Search ISM+HII+REGIONS
9 STARS MASSIVE 281809 4% 20% 185 Search STARS+MASSIVE Search STARS+MASSIVE
10 ISM KINEMATICS AND DYNAMICS 256735 6% 13% 271 Search ISM+KINEMATICS+AND+DYNAMICS Search ISM+KINEMATICS+AND+DYNAMICS

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 1


rank cluster_id2 link
1 18123 ISM GLOBULES//H II REGIONS//ISM INDIVIDUAL ROSETTE NEBULA
2 5031 ISM INDIVIDUAL ORION NEBULA//ISM INDIVIDUAL OBJECTS ORION KL//ISM INDIVIDUAL ORION KLEINMANN LOW
3 213 STARS FORMATION//ISM CLOUDS//ISM MOLECULES
4 5966 ISM JETS AND OUTFLOWS//ISM HERBIG HARO OBJECTS//HERBIG HARO OBJECTS
5 20858 GALACTIC KINEMATICS//GALAXY KINEMATICS AND DYNAMICS//PULKOVO ASTRON OBSERV
6 17674 MASERS//GALAXIES INDIVIDUAL NGC 4258//MASER EMISSION
7 19669 OPEN CLUSTERS AND ASSOCIATIONS GENERAL//OPEN CLUSTERS AND ASSOCIATIONS INDIVIDUAL NGC 3603//STARS KINEMATICS AND DYNAMICS
8 27492 RADIO RECOMBINATION LINES//ACTIVE DIPOLE//CII REGIONS
9 3728 ISM CLOUDS//ISM STRUCTURE//ISM KINEMATICS AND DYNAMICS
10 2238 ASTROCHEMISTRY//ISM MOLECULES//MOLECULAR PROCESSES

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