Class information for:
Level 1: FINE STRUCTURE CONSTANT//QUASAR SPECTRA//VARYING FINE STRUCTURE CONSTANT

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
12834 815 40.9 67%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
19 35367 JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS//COSMIC MICROWAVE BACKGROUND//COSMOLOGICAL PERTURBATION THEORY

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 FINE STRUCTURE CONSTANT Author keyword 5 24% 2% 18
2 QUASAR SPECTRA Author keyword 4 67% 0% 4
3 VARYING FINE STRUCTURE CONSTANT Author keyword 4 75% 0% 3
4 LARGE NUMBER HYPOTHESIS Author keyword 3 57% 0% 4
5 VARYING FUNDAMENTAL CONSTANTS Author keyword 3 100% 0% 3
6 VARIATION OF FUNDAMENTAL CONSTANTS Author keyword 3 45% 1% 5
7 ASTROPHYSICAL OBSERVATIONS Author keyword 2 67% 0% 2
8 FUNDAMENTAL COUPLINGS Author keyword 2 67% 0% 2
9 GRP ASTROFIS RELATIVIDAD COSMOL Address 2 67% 0% 2
10 TIME VARIATION OF PHYSICAL CONSTANTS Author keyword 2 67% 0% 2

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 FINE STRUCTURE CONSTANT 5 24% 2% 18 Search FINE+STRUCTURE+CONSTANT Search FINE+STRUCTURE+CONSTANT
2 QUASAR SPECTRA 4 67% 0% 4 Search QUASAR+SPECTRA Search QUASAR+SPECTRA
3 VARYING FINE STRUCTURE CONSTANT 4 75% 0% 3 Search VARYING+FINE+STRUCTURE+CONSTANT Search VARYING+FINE+STRUCTURE+CONSTANT
4 LARGE NUMBER HYPOTHESIS 3 57% 0% 4 Search LARGE+NUMBER+HYPOTHESIS Search LARGE+NUMBER+HYPOTHESIS
5 VARYING FUNDAMENTAL CONSTANTS 3 100% 0% 3 Search VARYING+FUNDAMENTAL+CONSTANTS Search VARYING+FUNDAMENTAL+CONSTANTS
6 VARIATION OF FUNDAMENTAL CONSTANTS 3 45% 1% 5 Search VARIATION+OF+FUNDAMENTAL+CONSTANTS Search VARIATION+OF+FUNDAMENTAL+CONSTANTS
7 ASTROPHYSICAL OBSERVATIONS 2 67% 0% 2 Search ASTROPHYSICAL+OBSERVATIONS Search ASTROPHYSICAL+OBSERVATIONS
8 FUNDAMENTAL COUPLINGS 2 67% 0% 2 Search FUNDAMENTAL+COUPLINGS Search FUNDAMENTAL+COUPLINGS
9 TIME VARIATION OF PHYSICAL CONSTANTS 2 67% 0% 2 Search TIME+VARIATION+OF+PHYSICAL+CONSTANTS Search TIME+VARIATION+OF+PHYSICAL+CONSTANTS
10 VARIABLE SPEED OF LIGHT 2 67% 0% 2 Search VARIABLE+SPEED+OF+LIGHT Search VARIABLE+SPEED+OF+LIGHT

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 FINE STRUCTURE CONSTANT 219 48% 41% 331
2 FUNDAMENTAL CONSTANTS 149 54% 23% 189
3 QSO ABSORPTION LINES 139 81% 10% 83
4 TIME VARIATION 127 47% 25% 202
5 PHYSICAL CONSTANTS 89 59% 12% 99
6 UVES LARGE PROGRAM 48 100% 2% 17
7 ELECTRON MASS RATIO 48 61% 6% 51
8 SPACE TIME VARIATION 38 51% 7% 53
9 VARYING ALPHA 36 66% 4% 33
10 VARYING CONSTANTS 26 80% 2% 16

Journals

Reviews


Title Publ. year Cit. Active references % act. ref.
to same field
The fundamental constants and their variation: observational and theoretical status 2003 632 197 52%
Environmental dependence of masses and coupling constants 2008 89 96 63%
Further evidence for a variable fine-structure constant from Keck/HIRES QSO absorption spectra 2003 329 80 44%
Microwave and submillimeter molecular transitions and their dependence on fundamental constants 2013 14 70 54%
Oklo reactors and implications for nuclear science 2014 5 67 48%
Possible evidence for a variable fine-structure constant from QSO absorption lines: motivations, analysis and results 2001 180 78 53%
Astronomical measurements and constraints on the variability of fundamental constants 2007 39 148 53%
DO THE FUNDAMENTAL CONSTANTS CHANGE WITH TIME? 2008 10 46 83%
New varying speed of light theories 2003 108 135 39%
Fundamental constants and their time variation 2011 3 4 100%

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 GRP ASTROFIS RELATIVIDAD COSMOL 2 67% 0.2% 2
2 FRE 2435 CNRS 1 50% 0.2% 2
3 LASERS LIFE BIOPHOTON 1 14% 0.7% 6
4 GRP GRAVITAC ASTROFIS COSMOL 1 33% 0.2% 2
5 CARRERA INVESTIGADOR CIENT TECNOL 1 50% 0.1% 1
6 CENTRO ASTROFIS 1 50% 0.1% 1
7 CH MAILLETTES 51 1 50% 0.1% 1
8 CRECO 1 50% 0.1% 1
9 FS ASTRON 1 50% 0.1% 1
10 LOLS 1 50% 0.1% 1

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000144640 SCALAR TENSOR COSMOLOGY//CONFORMAL FRAMES//GENERAL RELATIVITY LIMIT
2 0.0000128262 LNE SYRTE//INNOVAT SPACE TIME PROJECT//HORLOGE ATOM
3 0.0000084841 DARK ENERGY//DARK ENERGY THEORY//HOLOGRAPHIC DARK ENERGY
4 0.0000079778 BIG BANG NUCLEOSYNTHESIS//COSMOLOGICAL NEUTRINOS//NEUTRINO PROPERTIES
5 0.0000075499 GEN RELAT GRAVITAT//EFFECTIVE METRICS//GEN RELATIV GRAVITAT
6 0.0000066685 NONACCELERATOR PARTICLE PHYS GRP//NON ACCELERATOR PARTICLE PHYS GRP//FRANCIUM
7 0.0000060725 PHYS INTERDISCIPLINARY NANOSTRUCT SCI TE//PHYS MOL ATMOSPHERE ASTROPHYS//TERM VALUE
8 0.0000059232 MODIFIED GRAVITY//MASSIVE GRAVITY//PARTICLE COSMOL
9 0.0000057865 LORENTZ VIOLATION//CPT VIOLATION//LORENTZ INVARIANCE VIOLATION
10 0.0000057525 JANUS COSMOLOGICAL MODEL//BIMETRIC MODEL//GRAVITY IN A FLAT SPACE TIME