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How stable are the impact factors of major astrophysics journals

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arxiv 2503.12372 v2 pith:CSJL5EMJ submitted 2025-03-16 astro-ph.IM physics.pop-phphysics.soc-ph

classification astro-ph.IMphysics.pop-phphysics.soc-ph
keywords impactfactorfactorsapjlapjsastrophysicsdecadejournals
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We examine the long-term trends in impact factor over the past decade (2015-2014) for seven flagship journals widely used in Astrophysics: ApJ, AJ, ApJL, ApJS,A &A, JCAP, and MNRAS. We check the variation of both the traditional impact factor as well as the median-based impact factor, which we had studied in a previous work. We find that ApJS exhibits the largest drop in impact factor from 14.9 to 9.0, while ApJ and MNRAS show a steady decline from 6.7 to 5.2 and 5.6 to 5.0, respectively. However, the impact factors for AJ and ApJL have shown a steady increase from 4.55 to 5.35 and 6.4 to 9.7, respectively. The median-based impact factors are much more stable showing variations of at most $\pm 1$ within the last decade.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. A meta-analysis of impact factors of particle physics journals using NASA/ADS

    hep-ex 2025-07 conditional novelty 5.0 of 10

    ADS-based impact factors for 16 particle physics journals broadly track official Clarivate values, with PTEP and ARNPS inflated by single outlier papers.

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