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

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
38 31753 41.7 65%


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
38 2             STARS FORMATION//ISM CLOUDS//ISM MOLECULES 31753
224 1                   STARS FORMATION//MASERS//H II REGIONS 3881
367 1                   STARS WOLF RAYET//STARS EARLY TYPE//STARS MASS LOSS 3583
864 1                   ASTROCHEMISTRY//ISM MOLECULES//MOLECULAR PROCESSES 2998
1170 1                   STARS FORMATION//ISM CLOUDS//ISM GLOBULES 2805
1744 1                   ISM JETS AND OUTFLOWS//ISM HERBIG HARO OBJECTS//HERBIG HARO OBJECTS 2510
2426 1                   ISM LINES AND BANDS//DUST EXTINCTION//ISM MOLECULES 2248
2788 1                   SUPERNOVA REMNANTS//ISM SUPERNOVA REMNANTS//X RAYS ISM 2147
3545 1                   ISM CLOUDS//ISM STRUCTURE//ISM KINEMATICS AND DYNAMICS 1961
6429 1                   ISM INDIVIDUAL ORION NEBULA//ISM INDIVIDUAL OBJECTS ORION NEBULA//H II REGIONS 1484
6699 1                   GALAXY HALO//ISM BUBBLES//ISM STRUCTURE 1454
7171 1                   ISM ABUNDANCES//ISM MOLECULES//ISM CLOUDS 1397
11090 1                   STARS INDIVIDUAL ETA CARINAE//STARS INDIVIDUAL ETA CAR//STARS INDIVIDUAL P CYGNI 1008
11155 1                   GALAXIES MAGNETIC FIELDS//ISM MAGNETIC FIELDS//GALAXIES SPIRAL 1004
15017 1                   ISM GLOBULES//ISM INDIVIDUAL OBJECTS NGC 3372//H II REGIONS 736
15025 1                   ISM MAGNETIC FIELDS//POLARIZATION//DUST EXTINCTION 735
19349 1                   X RAYS DIFFUSE BACKGROUND//X RAYS ISM//SOLAR WIND CHARGE EXCHANGE 509
21251 1                   ULTRAVIOLET ISM//ISM INDIVIDUAL OBJECTS ORION ERIDANUS//TECHNIQUES ULTRAVIOLET 427
21451 1                   ISM BUBBLES//STARS INDIVIDUAL HD 56925//STARS WOLF RAYET 418
27634 1                   RADIO RECOMBINATION LINES//CII REGIONS//ASTRON TECH STR 25 225
30551 1                   CIENCIAS CAT//CIENCIAS EXPT FIS//CLOUD EVAPORATION 167
37491 1                   FRANCE ASTROPHYS THEOR 98 BIS BD ARAGO//INTENSITY RATIO CO C 12 COC 13//QUASARS ABSORPTION LINES QUASARS INDIVIDUAL Q 1100 264 56

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 FORMATION authKW 3229569 17% 62% 5468
2 ISM CLOUDS authKW 3053695 13% 80% 3993
3 ISM MOLECULES authKW 2950769 14% 70% 4385
4 ASTRONOMY & ASTROPHYSICS WoSSC 1657241 93% 6% 29555
5 ASTROPHYSICAL JOURNAL journal 1163055 31% 13% 9740
6 RADIO LINES ISM authKW 1026002 5% 73% 1461
7 ISM JETS AND OUTFLOWS authKW 988988 6% 56% 1842
8 ISM KINEMATICS AND DYNAMICS authKW 863695 4% 66% 1363
9 ISM STRUCTURE authKW 858999 4% 68% 1315
10 H II REGIONS authKW 847157 5% 59% 1489

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 1657241 93% 6% 29555
2 Physics, Atomic, Molecular & Chemical 304 3% 0% 835
3 Engineering, Aerospace 36 0% 0% 123
4 Spectroscopy -0 1% 0% 228
5 Meteorology & Atmospheric Sciences -21 1% 0% 171
6 Computer Science, Cybernetics -26 0% 0% 1
7 History & Philosophy of Science -28 0% 0% 5
8 Microscopy -35 0% 0% 1
9 Remote Sensing -40 0% 0% 10
10 Physics, Fluids & Plasmas -43 0% 0% 95

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 474371 18% 9% 5592
2 RADIOASTRON ASTROFIS 171143 1% 57% 312
3 ASTROPHYS 111003 4% 9% 1272
4 PHYS ASTRON 94351 13% 3% 4067
5 LEIDEN OBSERV 89287 2% 19% 490
6 ASTROPHYS SPACE ASTRON 84425 1% 28% 316
7 ASTRON ASTROPHYS 82922 4% 8% 1162
8 UMR 8112 79776 1% 38% 219
9 HERZBERG ASTROPHYS 73162 1% 24% 322
10 LERMA 69378 1% 23% 322

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 1163055 31% 13% 9740
2 ASTRONOMY & ASTROPHYSICS 873476 21% 14% 6775
3 MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 313209 12% 9% 3804
4 IAU SYMPOSIA 192750 4% 16% 1263
5 ASTRONOMICAL JOURNAL 120397 4% 10% 1347
6 ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 91167 2% 14% 669
7 ASTROPHYSICS AND SPACE SCIENCE 76528 3% 8% 1014
8 REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA 60756 1% 23% 283
9 PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 46135 1% 11% 430
10 ASTROPHYSICAL JOURNAL LETTERS 42942 2% 9% 530

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 FORMATION 3229569 17% 62% 5468 Search STARS+FORMATION Search STARS+FORMATION
2 ISM CLOUDS 3053695 13% 80% 3993 Search ISM+CLOUDS Search ISM+CLOUDS
3 ISM MOLECULES 2950769 14% 70% 4385 Search ISM+MOLECULES Search ISM+MOLECULES
4 RADIO LINES ISM 1026002 5% 73% 1461 Search RADIO+LINES+ISM Search RADIO+LINES+ISM
5 ISM JETS AND OUTFLOWS 988988 6% 56% 1842 Search ISM+JETS+AND+OUTFLOWS Search ISM+JETS+AND+OUTFLOWS
6 ISM KINEMATICS AND DYNAMICS 863695 4% 66% 1363 Search ISM+KINEMATICS+AND+DYNAMICS Search ISM+KINEMATICS+AND+DYNAMICS
7 ISM STRUCTURE 858999 4% 68% 1315 Search ISM+STRUCTURE Search ISM+STRUCTURE
8 H II REGIONS 847157 5% 59% 1489 Search H+II+REGIONS Search H+II+REGIONS
9 ISM ABUNDANCES 776708 5% 54% 1507 Search ISM+ABUNDANCES Search ISM+ABUNDANCES
10 ASTROCHEMISTRY 757806 4% 59% 1333 Search ASTROCHEMISTRY Search ASTROCHEMISTRY

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 MCKEE, CF , OSTRIKER, EC , (2007) THEORY OF STAR FORMATION.ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS. VOL. 45. ISSUE . P. 565 -687 411 68% 856
2 MAC LOW, MM , KLESSEN, RS , (2004) CONTROL OF STAR FORMATION BY SUPERSONIC TURBULENCE.REVIEWS OF MODERN PHYSICS. VOL. 76. ISSUE 1. P. 125 -194 393 71% 827
3 TIELENS, AGGM , (2013) THE MOLECULAR UNIVERSE.REVIEWS OF MODERN PHYSICS. VOL. 85. ISSUE 3. P. 1021 -1081 347 74% 116
4 KRUMHOLZ, MR , (2014) THE BIG PROBLEMS IN STAR FORMATION: THE STAR FORMATION RATE, STELLAR CLUSTERING, AND THE INITIAL MASS FUNCTION.PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS. VOL. 539. ISSUE 2. P. 49 -134 418 62% 31
5 BERGIN, EA , TAFALLA, M , (2007) COLD DARK CLOUDS: THE INITIAL CONDITIONS FOR STAR FORMATION.ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS. VOL. 45. ISSUE . P. 339 -396 250 94% 378
6 VAN DER HUCHT, KA , (2001) THE VIITH CATALOGUE OF GALACTIC WOLF-RAYET STARS.NEW ASTRONOMY REVIEWS. VOL. 45. ISSUE 3. P. 135 -232 336 80% 458
7 HEYER, M , DAME, TM , (2015) MOLECULAR CLOUDS IN THE MILKY WAY.ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, VOL 53. VOL. 53. ISSUE . P. 583 -629 237 90% 21
8 REIPURTH, B , BALLY, J , (2001) HERBIG-HARO FLOWS: PROBES OF EARLY STELLAR EVOLUTION.ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS. VOL. 39. ISSUE . P. 403 -455 321 85% 376
9 WRIGHT, MCH , HULL, CLH , PLAMBECK, RL , KWON, W , BOWER, GC , CARPENTER, JM , CRUTCHER, RM , FIEGE, JD , FRANZMANN, E , HAKOBIAN, NS , ET AL (2014) TADPOL: A 1.3 MM SURVEY OF DUST POLARIZATION IN STAR-FORMING CORES AND REGIONS.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES. VOL. 213. ISSUE 1. P. - 234 95% 34
10 PULS, J , VINK, JS , NAJARRO, F , (2008) MASS LOSS FROM HOT MASSIVE STARS.ASTRONOMY AND ASTROPHYSICS REVIEW. VOL. 16. ISSUE 3-4. P. 209 -325 278 86% 175

Classes with closest relation at Level 2


Rank Class id link
1 239 PLANETARY SYSTEMS//STARS PRE MAIN SEQUENCE//PLANETS AND SATELLITES FORMATION
2 159 WHITE DWARFS//NOVAE CATACLYSMIC VARIABLES//STARS AGB AND POST AGB
3 158 GLOBULAR CLUSTERS GENERAL//ASTRONOMY & ASTROPHYSICS//STARS ABUNDANCES
4 404 BL LACERTAE OBJECTS GENERAL//GAMMA RAYS OBSERVATIONS//RADIATION MECHANISMS NON THERMAL
5 0 GALAXIES EVOLUTION//ASTRONOMY & ASTROPHYSICS//MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
6 221 ASTRONOMY & ASTROPHYSICS//STARS ACTIVITY//STARS OSCILLATIONS
7 215 X RAYS BINARIES//BLACK HOLE PHYSICS//ACCRETION ACCRETION DISKS
8 3641 RADIO ASTRONOMY//INSTRUMENTATION INTERFEROMETERS//TECHNIQUES INTERFEROMETRIC
9 638 METEORITICS & PLANETARY SCIENCE//COMETS//METEORS
10 3709 BLOCKED IMPURITY BAND BIB//BLOCKED IMPURITY BAND DETECTOR//CRYOGENIC READOUT ELECTRONICS

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