Astronomy and Astrophysics

Top Research Topics at Astronomy and Astrophysics?

The scientific interests tackled in the journal are Astrophysics, Astronomy, Stars, Galaxy and Spectral line. The Astrophysics works featured in it incorporate elements from Context (language use) and Emission spectrum. Astronomy studies presented in the journal focus on topics such as Light curve, Elliptical galaxy, Luminous infrared galaxy, Photometry (optics) and Stellar evolution.

Metallicity, T Tauri star, Radial velocity, Stellar mass and Open cluster are all topics related to Stars research discussed. The journal tackles issues in Galaxy, particularly in the topics of Redshift, Galaxy cluster, Active galactic nucleus, Spiral galaxy and Galaxy formation and evolution.

• Astrophysics (96.54%)
• Astronomy (37.69%)
• Stars (19.41%)

What are the most cited papers published in the journal?

• Planck 2015 results - XIII. Cosmological parameters (7964 citations)
• Astropy: A community Python package for astronomy (6535 citations)
• Gaia Data Release 2 Summary of the contents and survey properties (6446 citations)

Research areas of the most cited articles at Astronomy and Astrophysics:

The main points discussed in the most cited publications deal with Astrophysics, Astronomy, Stars, Galaxy and Spectral line. The most cited articles focus on Astrophysics research which is adjacent to topics in Context (language use). While Open cluster is the key highlight in the most cited papers, thet also covered some subjects on Star cluster and Globular cluster.

What topics the last edition of the journal is best known for?

• Astrophysics
• Quantum mechanics
• Optics

The previous edition focused in particular on these issues:

The journal explores disciplines such as Astrophysics, Galaxy, Stars, Context (language use) and Spectral line. The Astrophysics research presented places emphasis on topics like Planet, Star formation, Redshift, Line (formation) and Luminosity. The journal primarily discusses Planet topics, particularly Exoplanet and Planetary system.

As a part of the journal, discussions in Galaxy involve topics like Stellar mass, Active galactic nucleus and Galaxy formation and evolution. It concentrates on Stars topics that focus on Metallicity, Milky Way and Stellar evolution.

The most cited articles from the last journal are:

• Gaia Early Data Release 3. The astrometric solution (132 citations)
• KiDS-1000 Cosmology: Multi-probe weak gravitational lensing and spectroscopic galaxy clustering constraints (111 citations)
• Gaia Early Data Release 3: Parallax bias versus magnitude, colour, and position (98 citations)

Papers citation over time

A key indicator for each journal is its effectiveness in reaching other researchers with the papers published at that venue.

The chart below presents the interquartile range (first quartile 25%, median 50% and third quartile 75%) of the number of citations of articles over time.

Top authors and change over time

The top authors publishing in Astronomy and Astrophysics (based on the number of publications) are:

• Francoise Combes (388 papers) published 19 papers at the last edition, 2 more than at the previous edition,
• Nuno C. Santos (337 papers) published 19 papers at the last edition, 2 less than at the previous edition,
• E. F. van Dishoeck (321 papers) published 16 papers at the last edition, 1 more than at the previous edition,
• Sami K. Solanki (307 papers) published 4 papers at the last edition, 9 less than at the previous edition,
• José Cernicharo (285 papers) published 21 papers at the last edition, 8 more than at the previous edition.

The overall trend for top authors publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top authors.

Top affiliations and change over time

Only papers with recognized affiliations are considered

The top affiliations publishing in Astronomy and Astrophysics (based on the number of publications) are:

• Max Planck Society (8121 papers) published 163 papers at the last edition, 252 less than at the previous edition,
• INAF (4990 papers) published 52 papers at the last edition, 42 less than at the previous edition,
• Spanish National Research Council (3527 papers) published 63 papers at the last edition, 30 less than at the previous edition,
• European Southern Observatory (3260 papers) published 47 papers at the last edition, 40 less than at the previous edition,
• Centre national de la recherche scientifique (3089 papers) published 26 papers at the last edition, 4 less than at the previous edition.

The overall trend for top affiliations publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top affiliations.

Publication chance based on affiliation

The publication chance index shows the ratio of articles published by the best research institutions in the journal edition to all articles published within that journal. The best research institutions were selected based on the largest number of articles published during all editions of the journal.

The chart below presents the percentage ratio of articles from top institutions (based on their ranking of total papers).Top affiliations were grouped by their rank into the following tiers: top 1-10, top 11-20, top 21-50, and top 51+. Only articles with a recognized affiliation are considered.

During the most recent 2021 edition, 79.11% of publications had an unrecognized affiliation. Out of the publications with recognized affiliations, 66.52% were posted by at least one author from the top 10 institutions publishing in the journal. Another 10.13% included authors affiliated with research institutions from the top 11-20 affiliations. Institutions from the 21-50 range included 9.25% of all publications and 14.10% were from other institutions.

Returning Authors Index

A very common phenomenon observed among researchers publishing scientific articles is the intentional selection of journals they have already attended in the past. In particular, it is worth analyzing the case when the authors participate in the same journal from year to year.

The Returning Authors Index presented below illustrates the ratio of authors who participated in both a given as well as the previous edition of the journal in relation to all participants in a given year.

Returning Institution Index

The graph below shows the Returning Institution Index, illustrating the ratio of institutions that participated in both a given and the previous edition of the conference in relation to all affiliations present in a given year.

The experience to innovation index

Our experience to innovation index was created to show a cross-section of the experience level of authors publishing in a journal. The index includes the authors publishing at the last edition of a journal, grouped by total number of publications throughout their academic career (P) and the total number of citations of these publications ever received (C).

The group intervals were selected empirically to best show the diversity of the authors' experiences, their labels were selected as a convenience, not as judgment. The authors were divided into the following groups:

• Novice - P < 5 or C < 25 (the number of publications less than 5 or the number of citations less than 25),
• Competent - P < 10 or C < 100 (the number of publications less than 10 or the number of citations less than 100),
• Experienced - P < 25 or C < 625 (the number of publications less than 25 or the number of citations less than 625),
• Master - P < 50 or C < 2500 (the number of publications less than 50 or the number of citations less than 2500),
• Star - P ≥ 50 and C ≥ 2500 (both the number of publications greater than 50 and the number of citations greater than 2500).

The chart below illustrates experience levels of first authors in cases of publications with multiple authors.