A. J. Apponi

3.8k total citations
69 papers, 2.9k citations indexed

About

A. J. Apponi is a scholar working on Spectroscopy, Astronomy and Astrophysics and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, A. J. Apponi has authored 69 papers receiving a total of 2.9k indexed citations (citations by other indexed papers that have themselves been cited), including 48 papers in Spectroscopy, 43 papers in Astronomy and Astrophysics and 40 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in A. J. Apponi's work include Molecular Spectroscopy and Structure (48 papers), Astrophysics and Star Formation Studies (40 papers) and Advanced Chemical Physics Studies (39 papers). A. J. Apponi is often cited by papers focused on Molecular Spectroscopy and Structure (48 papers), Astrophysics and Star Formation Studies (40 papers) and Advanced Chemical Physics Studies (39 papers). A. J. Apponi collaborates with scholars based in United States, Spain and France. A. J. Apponi's co-authors include L. M. Ziurys, Michael McCarthy, P. Thaddeus, L. M. Ziurys, C. A. Gottlieb, J. Cernicharo, M. Guélin, D. T. Halfen, N. J. Woolf and B. E. Turner and has published in prestigious journals such as Nature, The Journal of Chemical Physics and The Astrophysical Journal.

In The Last Decade

A. J. Apponi

67 papers receiving 2.9k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
A. J. Apponi United States 36 1.8k 1.7k 1.4k 855 305 69 2.9k
C. A. Gottlieb United States 28 1.9k 1.0× 1.5k 0.9× 910 0.7× 777 0.9× 165 0.5× 55 2.5k
C. A. Gottlieb United States 37 2.7k 1.5× 2.5k 1.5× 1.9k 1.4× 1.2k 1.4× 343 1.1× 98 4.3k
M. Guélin France 40 2.5k 1.4× 2.7k 1.6× 3.1k 2.3× 1.5k 1.7× 273 0.9× 148 5.1k
Norio Kaifu Japan 32 1.5k 0.9× 1.8k 1.1× 2.1k 1.6× 978 1.1× 112 0.4× 115 3.3k
Ryan C. Fortenberry United States 31 2.5k 1.4× 2.3k 1.4× 848 0.6× 1.2k 1.4× 319 1.0× 241 3.6k
Sven Thorwirth Germany 30 1.6k 0.9× 2.4k 1.4× 1.9k 1.4× 1.1k 1.3× 245 0.8× 146 3.5k
R. Thissen France 31 1.4k 0.8× 1.1k 0.7× 926 0.7× 558 0.7× 100 0.3× 112 2.6k
F. Pauzat France 26 1.3k 0.7× 885 0.5× 742 0.5× 488 0.6× 177 0.6× 86 1.9k
O. Dutuit France 31 1.6k 0.9× 1.2k 0.7× 706 0.5× 546 0.6× 82 0.3× 81 2.6k
F. J. Lovas United States 37 3.0k 1.7× 3.3k 2.0× 1.1k 0.8× 1.3k 1.6× 352 1.2× 103 4.5k

Countries citing papers authored by A. J. Apponi

Since Specialization
Citations

This map shows the geographic impact of A. J. Apponi'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 A. J. Apponi with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites A. J. Apponi more than expected).

Fields of papers citing papers by A. J. Apponi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by A. J. Apponi. 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 A. J. Apponi. The network helps show where A. J. Apponi may publish in the future.

Co-authorship network of co-authors of A. J. Apponi

This figure shows the co-authorship network connecting the top 25 collaborators of A. J. Apponi. A scholar is included among the top collaborators of A. J. Apponi 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 A. J. Apponi. A. J. Apponi 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.
Remijan, Anthony J., Stefanie N. Milam, Maria Womack, et al.. (2008). The Distribution, Excitation, and Formation of Cometary Molecules: Methanol, Methyl Cyanide, and Ethylene Glycol. The Astrophysical Journal. 689(1). 613–621. 16 indexed citations
2.
Ziurys, L. M., Stefanie N. Milam, A. J. Apponi, & N. J. Woolf. (2007). Chemical complexity in the winds of the oxygen-rich supergiant star VY Canis Majoris. Nature. 447(7148). 1094–1097. 103 indexed citations
3.
Milam, Stefanie N., Anthony J. Remijan, Maria Womack, et al.. (2006). Formaldehyde in Comets C/1995 O1 (Hale‐Bopp), C/2002 T7 (LINEAR), and C/2001 Q4 (NEAT): Investigating the Cometary Origin of H2CO. The Astrophysical Journal. 649(2). 1169–1177. 35 indexed citations
4.
Pagani, L., A. Bacmann, F. Motte, et al.. (2004). L183 (L134N) Revisited. Astronomy and Astrophysics. 417(2). 605–613. 49 indexed citations
5.
Pagani, L., J. R. Pardo, A. J. Apponi, A. Bacmann, & S. Cabrit. (2004). L183 (L134N) revisited. Astronomy and Astrophysics. 429(1). 181–192. 54 indexed citations
6.
Pagani, L., G. Lagache, A. Bacmann, et al.. (2003). L183 (L134N) Revisited. Astronomy and Astrophysics. 406(3). L59–L62. 29 indexed citations
7.
Pagani, L., et al.. (2002). On the frequency of the CS (J: 2$\rightarrow$1) and (J: 5$\rightarrow$4) transitions. Astronomy and Astrophysics. 381(3). 1094–1094. 1 indexed citations
8.
Halfen, D. T., A. J. Apponi, & L. M. Ziurys. (2002). Laboratory Detection and Pure Rotational Spectrum of the C[CLC]a[/CLC]C Radical ([ITAL]X[/ITAL] [TSUP]3[/TSUP]Σ[TSUP]−[/TSUP]). The Astrophysical Journal. 577(1). L67–L70. 18 indexed citations
9.
Pagani, L., et al.. (2001). Research Note On the frequency of the CS (J: 2$\rightarrow$1) and (J: 5$\rightarrow$4) transitions. Astronomy and Astrophysics. 380(1). 384–387. 3 indexed citations
10.
Halfen, D. T., A. J. Apponi, & L. M. Ziurys. (2001). Evaluating the N/O Chemical Network: The Distribution of N2O and NO in the Sagittarius B2 Complex. The Astrophysical Journal. 561(1). 244–253. 43 indexed citations
11.
Apponi, A. J., Michael McCarthy, C. A. Gottlieb, & P. Thaddeus. (2000). The Radio Spectra of S[CLC]i[/CLC]CCH, S[CLC]i[/CLC]CN, and S[CLC]i[/CLC]NC. The Astrophysical Journal. 536(1). L55–L58. 52 indexed citations
12.
Guélin, M., S. Müller, J. Cernicharo, et al.. (2000). Astronomical detection of the free radical SiCN. 363. 12 indexed citations
13.
Apponi, A. J., Michael McCarthy, C. A. Gottlieb, & P. Thaddeus. (2000). Laboratory Detection of Four New Cumulene Carbenes: H2C7, H2C8, H2C9, and D2C10. The Astrophysical Journal. 530(1). 357–361. 33 indexed citations
14.
McCarthy, Michael, A. J. Apponi, C. A. Gottlieb, & P. Thaddeus. (2000). Laboratory Detection of Five New Linear Silicon Carbides: SiC3, SiC5, SiC6, SiC7, and SiC8. The Astrophysical Journal. 538(2). 766–772. 59 indexed citations
15.
Ziurys, L. M., et al.. (1999). Cyanide Chemistry in Comet Hale-Bopp (C/1995 O1). The Astrophysical Journal. 527(1). L67–L71. 52 indexed citations
16.
McCarthy, Michael, A. J. Apponi, Vernita Gordon, et al.. (1999). Rotational spectrum and theoretical structure of the carbene HC4N. The Journal of Chemical Physics. 111(15). 6750–6754. 17 indexed citations
17.
Linnartz, H., T. Motylewski, John P. Maier, et al.. (1999). Electronic Ground and Excited State Spectroscopy of C6H and C6D. Journal of Molecular Spectroscopy. 197(1). 1–11. 53 indexed citations
18.
McCarthy, Michael, A. J. Apponi, & P. Thaddeus. (1999). A second rhomboidal isomer of SiC3. The Journal of Chemical Physics. 111(16). 7175–7178. 43 indexed citations
19.
Apponi, A. J., M. A. Brewster, & L. M. Ziurys. (1998). Rotational spectroscopy of LiCCH ( ) in its ground and v5 vibrational states. Chemical Physics Letters. 298(1-3). 161–169. 11 indexed citations
20.
Apponi, A. J., et al.. (1997). Comet C/1995 O1 (Hale-Bopp). International Astronomical Union Circular. 6586. 1. 1 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by C. A. Gottlieb Breakdown of academic impact, for papers by C. A. Gottlieb Breakdown of academic impact, for papers by M. Guélin Breakdown of academic impact, for papers by Norio Kaifu Breakdown of academic impact, for papers by Ryan C. Fortenberry Breakdown of academic impact, for papers by Sven Thorwirth Breakdown of academic impact, for papers by R. Thissen Breakdown of academic impact, for papers by F. Pauzat Breakdown of academic impact, for papers by O. Dutuit Breakdown of academic impact, for papers by F. J. Lovas
Rankless by CCL
2026