Class information for:
Level 1: PLANETARY NEBULAE GENERAL//ISM PLANETARY NEBULAE GENERAL//STARS AGB AND POST AGB

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
514 3292 38.3 62%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
5 40754 ASTRONOMY & ASTROPHYSICS//STARS ABUNDANCES//STARS AGB AND POST AGB

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 PLANETARY NEBULAE GENERAL Author keyword 830 62% 26% 849
2 ISM PLANETARY NEBULAE GENERAL Author keyword 65 64% 2% 63
3 STARS AGB AND POST AGB Author keyword 59 14% 12% 389
4 PLANETARY NEBULAE Author keyword 54 39% 3% 107
5 PLANETARY NEBULAE INDIVIDUAL NGC 7293 Author keyword 35 89% 0% 16
6 PLANETARY NEBULAE INDIVIDUAL Author keyword 31 92% 0% 12
7 NEBULAE PLANETARY Author keyword 29 71% 1% 24
8 ISM ABUNDANCES Author keyword 20 10% 6% 183
9 ISM PLANETARY NEBULAE Author keyword 18 65% 1% 17
10 SCI EDUC ASTRON Address 18 83% 0% 10

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 PLANETARY NEBULAE GENERAL 830 62% 26% 849 Search PLANETARY+NEBULAE++GENERAL Search PLANETARY+NEBULAE++GENERAL
2 ISM PLANETARY NEBULAE GENERAL 65 64% 2% 63 Search ISM++PLANETARY+NEBULAE++GENERAL Search ISM++PLANETARY+NEBULAE++GENERAL
3 STARS AGB AND POST AGB 59 14% 12% 389 Search STARS++AGB+AND+POST+AGB Search STARS++AGB+AND+POST+AGB
4 PLANETARY NEBULAE 54 39% 3% 107 Search PLANETARY+NEBULAE Search PLANETARY+NEBULAE
5 PLANETARY NEBULAE INDIVIDUAL NGC 7293 35 89% 0% 16 Search PLANETARY+NEBULAE++INDIVIDUAL+NGC+7293 Search PLANETARY+NEBULAE++INDIVIDUAL+NGC+7293
6 PLANETARY NEBULAE INDIVIDUAL 31 92% 0% 12 Search PLANETARY+NEBULAE++INDIVIDUAL Search PLANETARY+NEBULAE++INDIVIDUAL
7 NEBULAE PLANETARY 29 71% 1% 24 Search NEBULAE++PLANETARY Search NEBULAE++PLANETARY
8 ISM ABUNDANCES 20 10% 6% 183 Search ISM++ABUNDANCES Search ISM++ABUNDANCES
9 ISM PLANETARY NEBULAE 18 65% 1% 17 Search ISM++PLANETARY+NEBULAE Search ISM++PLANETARY+NEBULAE
10 PLANETARY NEBULAE INDIVIDUAL NGC 6543 17 100% 0% 8 Search PLANETARY+NEBULAE++INDIVIDUAL+NGC+6543 Search PLANETARY+NEBULAE++INDIVIDUAL+NGC+6543

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 CENTRAL STARS 441 82% 8% 258
2 STATISTICAL DISTANCE SCALE 196 100% 2% 50
3 APPARENT MAGNITUDES 106 100% 1% 31
4 NGC 6543 92 82% 2% 54
5 NGC 7027 87 60% 3% 95
6 PLANETARY NEBULAE 86 20% 12% 388
7 RADIATION GASDYNAMICS 85 81% 2% 51
8 NGC 7293 81 87% 1% 40
9 GASEOUS NEBULAE 75 52% 3% 102
10 OPTICAL RECOMBINATION LINES 73 76% 2% 51

Journals

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
Shapes and shaping of planetary nebulae 2002 315 199 66%
The Origin and Shaping of Planetary Nebulae: Putting the Binary Hypothesis to the Test 2009 119 192 65%
NGC 6153: a super-metal-rich planetary nebula? 2000 181 83 71%
A CATALOG OF ABSOLUTE FLUXES AND DISTANCES OF PLANETARY-NEBULAE 1992 357 49 94%
Properties that cannot be explained by the progenitors of planetary nebulae 1997 108 100 77%
ELEMENTAL ABUNDANCES FOR A SAMPLE OF SOUTHERN GALACTIC PLANETARY-NEBULAE 1994 367 85 73%
Binary planetary nebulae nuclei towards the Galactic bulge II. A penchant for bipolarity and low-ionisation structures 2009 52 87 80%
The Macquarie/AAO/Strasbourg H alpha Planetary Nebula Catalogue: MASH 2006 87 64 75%
The abundances of light neutron-capture elements in planetary nebulae. II. s-process enrichments and interpretation 2008 38 256 75%
Binary planetary nebulae nuclei towards the Galactic bulge I. Sample discovery, period distribution, and binary fraction 2009 70 72 46%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 SCI EDUC ASTRON 18 83% 0.3% 10
2 POSTBUS 800 9 64% 0.3% 9
3 ASTON METEOROL 6 71% 0.2% 5
4 LEHRSTUHL ASTROPHYS 6 43% 0.3% 10
5 ANAL NUMER ASTROFIS 4 29% 0.3% 11
6 URA 173 ASTROPHYS EXTRAGALACT COSMOL 3 100% 0.1% 3
7 ASTRON ASTROPHYS ASTROPHOTON 3 18% 0.5% 15
8 ASTRON GEOFIS AV MIGUEL STEFANO 4200 2 67% 0.1% 2
9 ASTRON GEOFIS CAIXA POSTAL 30627 2 67% 0.1% 2
10 CIENCIAS FIS MATEMAT ASTRON 2 67% 0.1% 2

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000152023 STARS INDIVIDUAL HD 56126//POST AGB SUPERGIANTS//STARS VARIABLES OTHER RV TAURI
2 0.0000101831 STARS INDIVIDUAL V4334 SGR//STARS INDIVIDUAL V652 HER//STARS INDIVIDUAL R CRB
3 0.0000097133 STARS AGB AND POST AGB//RADIO LINES STARS//STARS CARBON
4 0.0000095119 BINARIES SYMBIOTIC//STARS BINARIES SYMBIOTIC//BINARIES SYMBIOTIC
5 0.0000064427 WHITE DWARFS//STARS WHITE DWARFS//STARS INDIVIDUAL V471 TAURI
6 0.0000056367 ISM INDIVIDUAL ORION NEBULA//ISM INDIVIDUAL ORION KLEINMANN LOW//ISM INDIVIDUAL ORION
7 0.0000047321 SUBDWARFS//STARS SUBDWARFS//STARS HOT SUBDWARFS
8 0.0000045682 GALAXIES IRREGULAR//GALAXIES DWARF//GALAXIES COMPACT
9 0.0000044588 STARS INDIVIDUAL ETA CARINAE//STARS INDIVIDUAL ETA CARINAE//STARS INDIVIDUAL ETA CARINAE
10 0.0000039383 CCD PHOTOMETRY//ASTROPHYSICAL INSTRUMENTATIONS//GALAXIES INDIVIDUAL NGC 4102