Å. Hjalmarson

1.4k total citations
46 papers, 1.1k citations indexed

About

Å. Hjalmarson is a scholar working on Astronomy and Astrophysics, Cardiology and Cardiovascular Medicine and Spectroscopy. According to data from OpenAlex, Å. Hjalmarson has authored 46 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Astronomy and Astrophysics, 16 papers in Cardiology and Cardiovascular Medicine and 10 papers in Spectroscopy. Recurrent topics in Å. Hjalmarson's work include Astrophysics and Star Formation Studies (15 papers), Cardiac Imaging and Diagnostics (7 papers) and Molecular Spectroscopy and Structure (7 papers). Å. Hjalmarson is often cited by papers focused on Astrophysics and Star Formation Studies (15 papers), Cardiac Imaging and Diagnostics (7 papers) and Molecular Spectroscopy and Structure (7 papers). Å. Hjalmarson collaborates with scholars based in Sweden, United Kingdom and United States. Å. Hjalmarson's co-authors include Per Friberg, Johan Herlitz, Thomas Karlsson, Bernhard Svanberg, B. Höglund, William M. Irvine, Mona From Attebring, W. M. Irvine, Serena Tonstad and R. D. Sweet and has published in prestigious journals such as JAMA, The Astrophysical Journal and European Heart Journal.

In The Last Decade

Å. Hjalmarson

46 papers receiving 1.0k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Å. Hjalmarson Sweden 19 368 269 239 233 191 46 1.1k
W.T. Armstrong United States 17 333 0.9× 38 0.1× 570 2.4× 523 2.2× 159 0.8× 31 2.3k
Alison Offer United Kingdom 21 122 0.3× 301 1.1× 159 0.7× 218 0.9× 416 2.2× 41 1.4k
M. J. Jamieson United States 21 129 0.4× 107 0.4× 60 0.3× 942 4.0× 537 2.8× 96 2.1k
Jeffrey F. Friedman United States 18 247 0.7× 178 0.7× 38 0.2× 96 0.4× 307 1.6× 52 896
B. Franzke Germany 28 498 1.4× 296 1.1× 104 0.4× 42 0.2× 1.3k 6.6× 118 2.7k
Ichiro Yamaguchi Japan 25 384 1.0× 630 2.3× 25 0.1× 610 2.6× 554 2.9× 205 2.8k
Margaret D. Wilson United States 26 854 2.3× 83 0.3× 680 2.8× 61 0.3× 8 0.0× 48 2.2k
Christopher Morley United Kingdom 13 67 0.2× 100 0.4× 33 0.1× 253 1.1× 184 1.0× 25 1.1k
Åke Hjalmarson Sweden 34 270 0.7× 96 0.4× 128 0.5× 4.8k 20.6× 39 0.2× 151 6.1k
S. Johansson Sweden 18 138 0.4× 122 0.5× 235 1.0× 39 0.2× 253 1.3× 42 1.2k

Countries citing papers authored by Å. Hjalmarson

Since Specialization
Citations

This map shows the geographic impact of Å. Hjalmarson's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Å. Hjalmarson with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Å. Hjalmarson more than expected).

Fields of papers citing papers by Å. Hjalmarson

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Å. Hjalmarson. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Å. Hjalmarson. The network helps show where Å. Hjalmarson may publish in the future.

Co-authorship network of co-authors of Å. Hjalmarson

This figure shows the co-authorship network connecting the top 25 collaborators of Å. Hjalmarson. A scholar is included among the top collaborators of Å. Hjalmarson based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Å. Hjalmarson. Å. Hjalmarson is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Sandqvist, Aa., Bengt Larsson, Å. Hjalmarson, et al.. (2015). HerschelHIFI observations of the Sgr A +50 km s-1Cloud. Astronomy and Astrophysics. 584. A118–A118. 9 indexed citations
2.
Wirström, E. S., Å. Hjalmarson, J. H. Black, et al.. (2011). Observational tests of interstellar methanol formation. Astronomy and Astrophysics. 533. A24–A24. 59 indexed citations
3.
Tønnesen, Philip, Serena Tonstad, Å. Hjalmarson, et al.. (2003). A multicentre, randomized, double‐blind, placebo‐controlled, 1‐year study of bupropion SR for smoking cessation. Journal of Internal Medicine. 254(2). 184–192. 116 indexed citations
4.
5.
Nummelin, A., P. Bergman, Å. Hjalmarson, et al.. (1998). Abundances Of Ethylene Oxide And Acetaldehyde In Hot Molecular Cloud Cores. PubMed. 337(1). 275–86. 34 indexed citations
6.
Bengtson, A, Thomas Karlsson, Å. Hjalmarson, & Johan Herlitz. (1996). Complications prior to revascularization among patients waiting for coronary artery bypass grafting and percutaneous transluminal coronary angioplasty. European Heart Journal. 17(12). 1846–1851. 25 indexed citations
7.
Sjöland, Helén, Kenneth Caidahl, Leon Lurje, Å. Hjalmarson, & Johan Herlitz. (1995). Metoprolol treatment for two years after coronary bypass grafting: effects on exercise capacity and signs of myocardial ischaemia.. Heart. 74(3). 235–241. 19 indexed citations
8.
Karlson, Björn W., Johan Herlitz, & Å. Hjalmarson. (1994). Impact of clinical trials on the use of beta blockers after acute myocardial infarction and its relation to other risk indicators for death and 1‐year mortality rate. Clinical Cardiology. 17(6). 311–316. 21 indexed citations
9.
Herlitz, Johan, et al.. (1993). Characteristics and prognosis in hypertensives with acute chest pain. European Journal of Internal Medicine. 4(15). 35–44. 4 indexed citations
10.
Fu, L.-X., et al.. (1993). Free radical scavenging enzymes and G protein mediated receptor signalling systems in ischaemically preconditioned porcine myocardium. Cardiovascular Research. 27(4). 612–616. 19 indexed citations
11.
Fu, L.-X., Arnfinn Ilebekk, Gunnar Aksnes, et al.. (1992). Oxygen free radical injury and Gs mediated signal transduction in the stunned porcine myocardium. Cardiovascular Research. 26(5). 449–455. 10 indexed citations
12.
Hjalmarson, Å. & Finn Waagstein. (1991). New therapeutic strategies in chronic heart failure: challenge of long-term beta-blockade. European Heart Journal. 12(suppl F). 63–69. 21 indexed citations
13.
Friberg, Per, et al.. (1988). Methanol In Dark Clouds. PubMed. 195. 281–9. 21 indexed citations
14.
Bergh, C.‐H., et al.. (1988). The Effect of Diabetes on Phosphatidylinositol Turnover and Calcium Influx in Myocardium. Hormone and Metabolic Research. 20(7). 381–386. 17 indexed citations
15.
Herlitz, Johan, A Bengtson, Å. Hjalmarson, & Lars Wilhelmsen. (1988). Body temperature in acute myocardial infarction and its relation to early intervention with metoprolol. International Journal of Cardiology. 20(1). 65–71. 7 indexed citations
16.
Hjalmarson, Å.. (1985). Astrochemistry - observational aspects.. European Southern Observatory Conference and Workshop Proceedings. 22. 285–324. 1 indexed citations
17.
Andersson, C., J. Elldér, Per Friberg, et al.. (1985). The spectra of Orion A and IRC + 10216 between 72.2 and 91.1 GHz.. PubMed. 60(1). 135–68. 2 indexed citations
18.
Irvine, William M., Per Friberg, Å. Hjalmarson, et al.. (1984). Confirmation of the Existence of Two New Interstellar Molecules: C 3 H and C 3 O. Bulletin of the American Astronomical Society. 16. 877. 3 indexed citations
19.
Broten, N. W., J. M. MacLeod, L. W. Avery, et al.. (1984). The detection of interstellar methylcyanoacetylene. The Astrophysical Journal. 276(1). L25–L25. 68 indexed citations
20.
Pontén, J., B. Biber, T Bjurö, et al.. (1982). β‐Receptor Blockade and Spinal Anaesthesia. Withdrawal versus Continuation of Long‐term Therapy. Acta Anaesthesiologica Scandinavica. 26(s76). 62–69. 20 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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