C. Krämer

29.1k citations

122 papers · 4.2k indexed · 3 hit papers · h-index 34

Impact in

Astronomy and Astrophysics top 0.5%
- Astrophysics and Star Formation Studies
- Galaxies: Formation, Evolution, Phenomena
- Stellar, planetary, and galactic studies
- Astrophysical Phenomena and Observations
Instrumentation top 2%
- Astronomy and Astrophysical Research

Papers in ⓘ

Astronomy and Astrophysics 109
- Astrophysics and Star Formation Studies 95
- Stellar, planetary, and galactic studies 60
- Galaxies: Formation, Evolution, Phenomena 58
- Astrophysical Phenomena and Observations 14
Instrumentation 14
- Astronomy and Astrophysical Research 14

Co-authors: K. Schüster (26 shared papers)Adam K. Leroy (17 shared papers)S. García‐Burillo (25 shared papers)A. Usero (9 shared papers)Frank Bigiel (9 shared papers)B. Mookerjea (19 shared papers)J. Stützki (23 shared papers)Fabian Walter (5 shared papers)
Journals: Astronomy and Astrophysics (46 papers)The Astrophysical Journal (12 papers)Monthly Notices of the Royal Astronomical Society (8 papers)The Astrophysical Journal Letters (5 papers)The Astronomical Journal (2 papers)
Partner nations: Germany Spain France

In The Last Decade

C. Krämer

113 papers receiving 4.0k citations

Hit Papers

align trajectories log scale

Molecular and atomic gas along and across the main sequence of star-forming galaxies 2016 · 164 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2016 Monthly Notices of the Royal Astronomical Society
2012 The Astrophysical Journal
2009 The Astronomical Journal

Peers

Countries citing papers authored by C. Krämer

Since Specialization

Citations

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

Fields of papers citing papers by C. Krämer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by C. Krämer. 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 C. Krämer. The network helps show where C. Krämer may publish in the future.

Co-authors

The 25 scholars most cited alongside C. Krämer, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with C. Krämer Line = papers co-authored together C. Krämer links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 122 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	HERACLES: THE HERA CO LINE EXTRAGALACTIC SURVEY The Astronomical Journal ·Adam K. Leroy, Fabian Walter, Frank Bigiel, A. Usero, (unknown), E. Brinks, W. J. G. de Blok, Robert C. Kennicutt, K. Schüster, C. Krämer, H. Wiesemeyer, H. Roussel Hit paper breakdown →	2009	354
2	A CONSTANT MOLECULAR GAS DEPLETION TIME IN NEARBY DISK GALAXIES The Astrophysical Journal Letters ·Frank Bigiel, Adam K. Leroy, Fabian Walter, E. Brinks, W. J. G. de Blok, C. Krämer, Hans‐Walter Rix, Andreas Schruba, K. Schüster, A. Usero, H. Wiesemeyer	2011	256
3	Molecular and atomic gas along and across the main sequence of star-forming galaxies Monthly Notices of the Royal Astronomical Society ·A. Saintonge, Barbara Catinella, L. Cortese, R. Genzel, Riccardo Giovanelli, Martha P. Haynes, Steven Janowiecki, C. Krämer, Katharina Lutz, David Schiminovich, L. J. Tacconi, Stijn Wuyts, Gioacchino Accurso Hit paper breakdown →	2016	164
4	THE IMPACT OF INTERACTIONS, BARS, BULGES, AND ACTIVE GALACTIC NUCLEI ON STAR FORMATION EFFICIENCY IN LOCAL MASSIVE GALAXIES The Astrophysical Journal ·A. Saintonge, L. J. Tacconi, Silvia Fabello, Jing Wang, Barbara Catinella, R. Genzel, J. Graciá‐Carpio, C. Krämer, Seán Moran, Timothy M. Heckman, David Schiminovich, K. Schüster, Stijn Wuyts Hit paper breakdown →	2012	159
5	THE PdBI ARCSECOND WHIRLPOOL SURVEY (PAWS): ENVIRONMENTAL DEPENDENCE OF GIANT MOLECULAR CLOUD PROPERTIES IN M51 The Astrophysical Journal ·Dario Colombo, Annie Hughes, Eva Schinnerer, Sharon E. Meidt, Adam K. Leroy, J. Pety, Clare L. Dobbs, S. García‐Burillo, G. Dumas, Todd A. Thompson, Karl F. Schuster, C. Krämer	2014	147
6	LOW CO LUMINOSITIES IN DWARF GALAXIES The Astronomical Journal ·Andreas Schruba, Adam K. Leroy, Fabian Walter, Frank Bigiel, E. Brinks, W. J. G. de Blok, C. Krämer, Erik Rosolowsky, Karin Sandström, K. Schüster, A. Usero, (unknown), H. Wiesemeyer	2012	141
7	The EMIR multi-band mm-wave receiver for the IRAM 30-m telescope Astronomy and Astrophysics ·M. Carter, B. Lazareff, D. Maier, J.-Y. Chenu, Anne-Laure Fontana, Yves Bortolotti, C. Boucher, A. Navarrini, Steve Blanchet, A. Greve, D. John, C. Krämer, Francis Morel, S. Navarro, J. Peñalver, K. Schüster, C. Thum	2011	139
8	A new view of the Cygnus X region Astronomy and Astrophysics ·N. Schneider, R. Simon, H. Jakob, F. Motte, M. Miller, C. Krämer, J. Stützki	2006	124
9	THE PdBI ARCSECOND WHIRLPOOL SURVEY (PAWS). I. A CLOUD-SCALE/MULTI-WAVELENGTH VIEW OF THE INTERSTELLAR MEDIUM IN A GRAND-DESIGN SPIRAL GALAXY The Astrophysical Journal ·Eva Schinnerer, Sharon E. Meidt, J. Pety, Annie Hughes, Dario Colombo, S. García‐Burillo, K. Schüster, G. Dumas, Clare L. Dobbs, Adam K. Leroy, C. Krämer, Todd A. Thompson, Michael W. Regan	2013	120
10	GAS KINEMATICS ON GIANT MOLECULAR CLOUD SCALES IN M51 WITH PAWS: CLOUD STABILIZATION THROUGH DYNAMICAL PRESSURE The Astrophysical Journal ·Sharon E. Meidt, Eva Schinnerer, S. García‐Burillo, Annie Hughes, Dario Colombo, J. Pety, Clare L. Dobbs, K. Schüster, C. Krämer, Adam K. Leroy, Galle Dumas, Todd A. Thompson	2013	94
11	Deriving a multivariate αCO conversion function using the [CII]/CO(1-0) ratio and its application to molecular gas scaling relations Monthly Notices of the Royal Astronomical Society ·Gioacchino Accurso, A. Saintonge, Barbara Catinella, L. Cortese, Romeel Davé, Steven Hailey Dunsheath, R. Genzel, J. Graciá‐Carpio, Timothy M. Heckman, Jimmy Jimmy, C. Krämer, Cheng Li, Katharina Lutz, David Schiminovich, K. Schüster, A. Sternberg, E. Sturm, L. J. Tacconi, Kim‐Vy Tran, Jing Wang	2017	92
12	Cloud-scale ISM Structure and Star Formation in M51 The Astrophysical Journal ·Adam K. Leroy, Eva Schinnerer, Annie Hughes, J. M. Diederik Kruijssen, Sharon E. Meidt, Andreas Schruba, Jiayi Sun, Frank Bigiel, G. Aniano, Guillermo A. Blanc, Alberto D. Bolatto, Mélanie Chevance, Dario Colombo, Molly Gallagher, S. García‐Burillo, C. Krämer, Miguel Querejeta, J. Pety, Todd A. Thompson, A. Usero	2017	81
13	A complete $^\mathsf{{12}}$CO 2-1 map of M 51 with HERA Astronomy and Astrophysics ·K. Schüster, C. Krämer, M. Hitschfeld, S. García‐Burillo, B. Mookerjea	2006	79
14	Dynamics of cluster-forming hub-filament systems Astronomy and Astrophysics ·S. P. Treviño-Morales, A. Fuente, Á. Sánchez-Monge, J. Kainulainen, P. Didelon, S. Suri, N. Schneider, Javier Ballesteros‐Paredes, Yueh-Ning Lee, P. Hennebelle, P. Pilleri, M. C. González-García, C. Krämer, S. García‐Burillo, A. Luna, J. R. Goicoechea, Pascal Tremblin, Sam Geen	2019	75
15	THE PLATEAU DE BURE + 30 m ARCSECOND WHIRLPOOL SURVEY REVEALS A THICK DISK OF DIFFUSE MOLECULAR GAS IN THE M51 GALAXY The Astrophysical Journal ·J. Pety, Eva Schinnerer, Adam K. Leroy, Annie Hughes, Sharon E. Meidt, Dario Colombo, G. Dumas, S. García‐Burillo, K. Schüster, C. Krämer, Clare L. Dobbs, Todd A. Thompson	2013	75
16	The IRAM M33 CO(2-1) Survey - A complete census of the molecular gas out to 7 kpc arXiv (Cornell University) ·C. Druard, J. Braine, K. Schüster, N. Schneider, P. Gratier, S. Bontemps, M. Boquien, F. Combes, E. Corbelli, C. Henkel, F. Herpin, C. Krämer, F. van der Tak, P. van der Werf	2014	70
17	Giant molecular clouds in the Local Group galaxy M 33 Astronomy and Astrophysics ·P. Gratier, J. Braine, Nemesio Rodríguez-Fernández, K. Schüster, C. Krämer, E. Corbelli, F. Combes, N. Brouillet, P. van der Werf, M. Röllig	2011	70
18	Radio Emission from Galactic and Extragalactic Compact Sources H. Ungerechts, C. Krämer, B. Leflóch, S. Coutinõ de León, F. Masset, R. Moreno, G. Paubert, Dénis Reynaud, A. Sievers, W. Wild	1997	65
19	THE EMPIRE SURVEY: SYSTEMATIC VARIATIONS IN THE DENSE GAS FRACTION AND STAR FORMATION EFFICIENCY FROM FULL-DISK MAPPING OF M51 The Astrophysical Journal Letters ·Frank Bigiel, Adam K. Leroy, María J. Jiménez-Donaire, J. Pety, A. Usero, D. Cormier, Alberto D. Bolatto, S. García‐Burillo, Dario Colombo, Manuel González-García, Annie Hughes, Amanda A. Kepley, C. Krämer, Karin Sandström, Eva Schinnerer, Andreas Schruba, K. Schuster, Neven Tomičić, Laura K. Zschaechner	2016	63
20	EMPIRE: The IRAM 30 m Dense Gas Survey of Nearby Galaxies The Astrophysical Journal ·María J. Jiménez-Donaire, Frank Bigiel, Adam K. Leroy, A. Usero, D. Cormier, Johannes Puschnig, Molly Gallagher, Amanda A. Kepley, Alberto D. Bolatto, S. García‐Burillo, Annie Hughes, C. Krämer, J. Pety, Eva Schinnerer, Andreas Schruba, K. Schüster, Fabian Walter	2019	62

About C. Krämer

C. Krämer is a scholar working on Astronomy and Astrophysics, Instrumentation, Spectroscopy, Atmospheric Science and Nuclear and High Energy Physics, having authored 122 papers that have together received 4.2k indexed citations. Recurring topics across this work include Astrophysics and Star Formation Studies (95 papers), Stellar, planetary, and galactic studies (60 papers), Galaxies: Formation, Evolution, Phenomena (58 papers), Molecular Spectroscopy and Structure (16 papers), Astrophysical Phenomena and Observations (14 papers), Astronomy and Astrophysical Research (14 papers), Atmospheric Ozone and Climate (13 papers) and Astrophysics and Cosmic Phenomena (10 papers). The work is most often cited by research in Astronomy and Astrophysics (4.0k citations), Instrumentation (511 citations), Spectroscopy (728 citations), Nuclear and High Energy Physics (319 citations) and Atmospheric Science (374 citations). C. Krämer has collaborated with scholars based in Germany, Spain and France. Frequent co-authors include K. Schüster, Adam K. Leroy, S. García‐Burillo, A. Usero, Frank Bigiel, B. Mookerjea, J. Stützki, Fabian Walter, H. Wiesemeyer and J. Pety. Their work appears in journals such as Astronomy and Astrophysics, The Astrophysical Journal, Monthly Notices of the Royal Astronomical Society, The Astrophysical Journal Letters and The Astronomical Journal.

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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