Scimago Journal & Country Rank

Astrophysical Letters and Communications

CountryUnited Kingdom
13
H Index
Subject Area and CategoryPhysics and Astronomy
Astronomy and Astrophysics
PublisherGordon & Breach
Publication typeJournals
ISSN08886512
Coverage1988, 1996-2000
Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

CategoryYearQuartile
Astronomy and Astrophysics1997Q2
Astronomy and Astrophysics1998Q3
Astronomy and Astrophysics1999Q4
Astronomy and Astrophysics2000Q4
Astronomy and Astrophysics2001Q4
Astronomy and Astrophysics2002Q4
Astronomy and Astrophysics2003Q4
SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

YearSJR
19990.187
20000.137
20010.146
20020.209
20030.225
Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)19990.148
Cites / Doc. (4 years)20000.118
Cites / Doc. (4 years)20010.123
Cites / Doc. (4 years)20020.268
Cites / Doc. (4 years)20030.235
Cites / Doc. (3 years)19990.148
Cites / Doc. (3 years)20000.091
Cites / Doc. (3 years)20010.144
Cites / Doc. (3 years)20020.356
Cites / Doc. (3 years)20030.361
Cites / Doc. (2 years)19990.090
Cites / Doc. (2 years)20000.104
Cites / Doc. (2 years)20010.121
Cites / Doc. (2 years)20020.722
Cites / Doc. (2 years)20030.000
Total Cites 
Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

CitesYearValue
Self Cites19990
Self Cites20000
Self Cites20010
Self Cites20020
Self Cites20030
Total Cites199946
Total Cites200027
Total Cites200137
Total Cites200247
Total Cites200313
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

CitesYearValue
External Cites per document19990.148
External Cites per document20000.091
External Cites per document20010.144
External Cites per document20020.356
External Cites per document20030.361
Cites per document19990.148
Cites per document20000.091
Cites per document20010.144
Cites per document20020.356
Cites per document20030.361
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
199951.04
200036.11
20010
20020
20030
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

DocumentsYearValue
Non-citable documents19990
Non-citable documents20000
Non-citable documents20010
Non-citable documents20020
Non-citable documents20030
Citable documents1999311
Citable documents2000296
Citable documents2001257
Citable documents2002132
Citable documents200336
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

DocumentsYearValue
Uncited documents1999299
Uncited documents2000279
Uncited documents2001237
Uncited documents2002110
Uncited documents200329
Cited documents199912
Cited documents200017
Cited documents200120
Cited documents200222
Cited documents20037
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