Class information for:
Level 1: ISM INDIVIDUAL ORION NEBULA//ISM INDIVIDUAL OBJECTS ORION NEBULA//H II REGIONS

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
6429 1484 37.5 59%


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
6429 1                   ISM INDIVIDUAL ORION NEBULA//ISM INDIVIDUAL OBJECTS ORION NEBULA//H II REGIONS 1484

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 ISM INDIVIDUAL ORION NEBULA authKW 1097442 5% 68% 79
2 ISM INDIVIDUAL OBJECTS ORION NEBULA authKW 193166 1% 72% 13
3 H II REGIONS authKW 191752 10% 6% 153
4 ISM MOLECULES authKW 166275 15% 4% 225
5 ISM INDIVIDUAL NGC 2024 authKW 165963 1% 73% 11
6 INFRARED ISM LINES AND BANDS authKW 153220 4% 13% 57
7 ISM INDIVIDUAL ORION IRC2 authKW 151501 1% 82% 9
8 ISM INDIVIDUAL OBJECTS NGC 2024 authKW 126018 0% 88% 7
9 ISM INDIVIDUAL ORION authKW 119887 1% 45% 13
10 ISM INDIVIDUAL OBJECTS OMC1 authKW 119703 1% 73% 8

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 80998 95% 0% 1412
2 Optics 33 4% 0% 52
3 Engineering, Aerospace 2 0% 0% 6
4 Instruments & Instrumentation -1 1% 0% 11
5 Spectroscopy -1 0% 0% 7
6 Meteorology & Atmospheric Sciences -2 0% 0% 7
7 Multidisciplinary Sciences -2 0% 0% 1
8 Geosciences, Multidisciplinary -6 1% 0% 8
9 Physics, Fluids & Plasmas -7 0% 0% 1
10 Physics, Applied -7 2% 0% 34

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 RADIOASTRON ASTROFIS 38598 2% 6% 32
2 900 LEILANI ST 20575 0% 100% 1
3 ABT MUNCHBERG 20575 0% 100% 1
4 ASTRON PROGRAM EARTH ENVIRONM SCI 20575 0% 100% 1
5 ASTRON SONDERFOR BEREICH RADIOASTRON 131 20575 0% 100% 1
6 ASTRON SONDERSFOR BEREICH RADIOASTRON 131 20575 0% 100% 1
7 ASTROPHYS MEGURO KU 20575 0% 100% 1
8 ASTROPHYS OPT PHYS 20575 0% 100% 1
9 CEADSMCNRS AIM 20575 0% 100% 1
10 CNRSUMR 8112OBSERV PARIS 20575 0% 100% 1

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 92916 40% 1% 594
2 ASTRONOMY & ASTROPHYSICS 22559 16% 0% 236
3 IAU SYMPOSIA 10270 4% 1% 63
4 MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 9685 10% 0% 145
5 ASTRONOMICAL JOURNAL 7381 5% 1% 72
6 ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS 6976 2% 1% 28
7 REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA 5272 1% 1% 18
8 ASTROPHYSICS AND SPACE SCIENCE 3987 3% 0% 50
9 INFRARED PHYSICS 3888 1% 1% 14
10 PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 2604 2% 0% 26

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 ISM INDIVIDUAL ORION NEBULA 1097442 5% 68% 79 Search ISM+INDIVIDUAL+ORION+NEBULA Search ISM+INDIVIDUAL+ORION+NEBULA
2 ISM INDIVIDUAL OBJECTS ORION NEBULA 193166 1% 72% 13 Search ISM+INDIVIDUAL+OBJECTS+ORION+NEBULA Search ISM+INDIVIDUAL+OBJECTS+ORION+NEBULA
3 H II REGIONS 191752 10% 6% 153 Search H+II+REGIONS Search H+II+REGIONS
4 ISM MOLECULES 166275 15% 4% 225 Search ISM+MOLECULES Search ISM+MOLECULES
5 ISM INDIVIDUAL NGC 2024 165963 1% 73% 11 Search ISM+INDIVIDUAL+NGC+2024 Search ISM+INDIVIDUAL+NGC+2024
6 INFRARED ISM LINES AND BANDS 153220 4% 13% 57 Search INFRARED+ISM+LINES+AND+BANDS Search INFRARED+ISM+LINES+AND+BANDS
7 ISM INDIVIDUAL ORION IRC2 151501 1% 82% 9 Search ISM+INDIVIDUAL+ORION+IRC2 Search ISM+INDIVIDUAL+ORION+IRC2
8 ISM INDIVIDUAL OBJECTS NGC 2024 126018 0% 88% 7 Search ISM+INDIVIDUAL+OBJECTS+NGC+2024 Search ISM+INDIVIDUAL+OBJECTS+NGC+2024
9 ISM INDIVIDUAL ORION 119887 1% 45% 13 Search ISM+INDIVIDUAL+ORION Search ISM+INDIVIDUAL+ORION
10 ISM INDIVIDUAL OBJECTS OMC1 119703 1% 73% 8 Search ISM+INDIVIDUAL+OBJECTS+OMC1 Search ISM+INDIVIDUAL+OBJECTS+OMC1

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 VAN DER WERF, PP , GOSS, WM , O'DELL, CR , (2013) TEARING THE VEIL: INTERACTION OF THE ORION NEBULA WITH ITS NEUTRAL ENVIRONMENT.ASTROPHYSICAL JOURNAL. VOL. 762. ISSUE 2. P. - 79 79% 12
2 O'DELL, CR , FERLAND, GJ , HENNEY, WJ , PEIMBERT, M , GARCIA-DIAZ, MT , RUBIN, RH , (2015) THE NATURE AND FREQUENCY OF OUTFLOWS FROM STARS IN THE CENTRAL ORION NEBULA CLUSTER.ASTRONOMICAL JOURNAL. VOL. 150. ISSUE 4. P. - 78 74% 1
3 GENZEL, R , STUTZKI, J , (1989) THE ORION MOLECULAR CLOUD AND STAR-FORMING REGION.ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS. VOL. 27. ISSUE . P. 41 -85 104 62% 399
4 NISSEN, HD , CUNNINGHAM, NJ , GUSTAFSSON, M , BALLY, J , LEMAIRE, JL , FAVRE, C , FIELD, D , (2012) A 3D VIEW OF THE OUTFLOW IN THE ORION MOLECULAR CLOUD 1 (OMC-1).ASTRONOMY & ASTROPHYSICS. VOL. 540. ISSUE . P. - 51 77% 13
5 O'DELL, CR , HENNEY, WJ , ABEL, NP , FERLAND, GJ , ARTHUR, SJ , (2009) THE THREE-DIMENSIONAL DYNAMIC STRUCTURE OF THE INNER ORION NEBULA.ASTRONOMICAL JOURNAL. VOL. 137. ISSUE 1. P. 367 -382 62 68% 20
6 O'DELL, CR , (2001) THE ORION NEBULA AND ITS ASSOCIATED POPULATION.ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS. VOL. 39. ISSUE . P. 99 -136 82 55% 156
7 HOLLENBACH, DJ , TIELENS, AGGM , (1999) PHOTODISSOCIATION REGIONS IN THE INTERSTELLAR MEDIUM OF GALAXIES.REVIEWS OF MODERN PHYSICS. VOL. 71. ISSUE 1. P. 173 -230 126 30% 342
8 TIELENS, AGGM , HOLLENBACH, DJ , (1997) DENSE PHOTODISSOCIATION REGIONS (PDRS).ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS. VOL. 35. ISSUE . P. 179 -215 88 43% 296
9 HIROTA, T , KIM, MK , KURONO, Y , HONMA, M , (2015) ALMA IMAGING OF MILLIMETER/SUBMILLIMETER CONTINUUM EMISSION IN ORION KL.ASTROPHYSICAL JOURNAL. VOL. 801. ISSUE 2. P. - 37 80% 3
10 HIROTA, T , KIM, MK , HONMA, M , (2016) ALMA OBSERVATION OF THE 658 GHZ VIBRATIONALLY EXCITED H2O MASER IN ORION KL SOURCE I.ASTROPHYSICAL JOURNAL. VOL. 817. ISSUE 2. P. - 37 71% 1

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 15017 ISM GLOBULES//ISM INDIVIDUAL OBJECTS NGC 3372//H II REGIONS
3 27634 RADIO RECOMBINATION LINES//CII REGIONS//ASTRON TECH STR 25
4 224 STARS FORMATION//MASERS//H II REGIONS
5 864 ASTROCHEMISTRY//ISM MOLECULES//MOLECULAR PROCESSES
6 7171 ISM ABUNDANCES//ISM MOLECULES//ISM CLOUDS
7 37491 FRANCE ASTROPHYS THEOR 98 BIS BD ARAGO//INTENSITY RATIO CO C 12 COC 13//QUASARS ABSORPTION LINES QUASARS INDIVIDUAL Q 1100 264
8 15025 ISM MAGNETIC FIELDS//POLARIZATION//DUST EXTINCTION
9 1170 STARS FORMATION//ISM CLOUDS//ISM GLOBULES
10 9893 GALAXIES INDIVIDUAL M82//GALAXIES INDIVIDUAL NGC 253//GALAXIES STARBURST

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