Ann E. Hornschemeier

16.2k citations

97 papers · 3.9k · 1 hit paper · h-index 33

Impact in

Instrumentation top 1%
- Astronomy and Astrophysical Research
Astronomy and Astrophysics top 0.5%
- Galaxies: Formation, Evolution, Phenomena
- Astrophysical Phenomena and Observations
- Gamma-ray bursts and supernovae
- Stellar, planetary, and galactic studies
- Astrophysics and Star Formation Studies
- Radio Astronomy Observations and Technology

Papers in

Astronomy and Astrophysics 93
- Galaxies: Formation, Evolution, Phenomena 74
- Astrophysical Phenomena and Observations 72
- Gamma-ray bursts and supernovae 28
- Stellar, planetary, and galactic studies 15
- Astrophysics and Star Formation Studies 9
- Pulsars and Gravitational Waves Research 5
Nuclear and High Energy Physics 45
- Astrophysics and Cosmic Phenomena 40

Co-authors: William Nielsen Brandt (29 shared papers)GORDON P. GARMIRE (23 shared papers)F. E. Bauer (22 shared papers)D. M. Alexander (23 shared papers)Donald P. Schneider (17 shared papers)Andrew F. Ptak (36 shared papers)Amy J. Barger (8 shared papers)L. L. Cowie (8 shared papers)
Journals: The Astrophysical Journal (35 papers)The Astronomical Journal (17 papers)Monthly Notices of the Royal Astronomical Society (8 papers)Astronomy and Astrophysics (2 papers)The Astrophysical Journal Supplement Series (2 papers)
Partner nations: United States Greece United Kingdom

In The Last Decade

Ann E. Hornschemeier

91 papers receiving 3.8k citations

Ann E. Hornschemeier's Hit Papers

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The Chandra Deep Field North Survey. XIII. 2 Ms Point-Source Catalogs 2003 · 447 citations

What are hit papers?

Paper score: A paper's citations measured against the top-1% bar of its own field and year: the square root of citations ÷ bar, so 1 means right at the bar and 2 means four times its citations. The bar blends the citation counts that enter the top 1% of the paper's subfields in its year (weighted 89.5%), of those subfields over all years (0.5%) and of its year across all fields (10%); a subfield and year with fewer than 400 papers takes its year's bar. Papers from 2026 are not scored yet: in an unfinished year, when a paper appeared matters more than how it is cited.

Hit paper: A paper cited at least 1.5× the top-1% bar of its field and year: a paper score of at least √1.5.

2003 The Astronomical Journal

Peers

Countries citing papers authored by Ann E. Hornschemeier

Since Specialization

Citations

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

Fields of papers citing papers by Ann E. Hornschemeier

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ann E. Hornschemeier. 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 Ann E. Hornschemeier. The network helps show where Ann E. Hornschemeier may publish in the future.

Co-authors

The 25 scholars most cited alongside Ann E. Hornschemeier, 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 Ann E. Hornschemeier Line = papers co-authored together Ann E. Hornschemeier 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 97 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	The Chandra Deep Field North Survey. XIII. 2 Ms Point-Source Catalogs The Astronomical Journal ·D. M. Alexander, F. E. Bauer, William Nielsen Brandt, Donald P. Schneider, Ann E. Hornschemeier, C. Vignali, Amy J. Barger, Patrick S. Broos, L. L. Cowie, GORDON P. GARMIRE, Leisa K. Townsley, M. W. Bautz, G. Chartas, W. L. W. Sargent Hit paper breakdown →	2003	447
2	The Chandra Deep Field North Survey. V. 1 M[CLC]s[/CLC] Source Catalogs The Astronomical Journal ·William Nielsen Brandt, D. M. Alexander, Ann E. Hornschemeier, GORDON P. GARMIRE, Donald P. Schneider, Amy J. Barger, F. E. Bauer, Patrick S. Broos, L. L. Cowie, Leisa K. Townsley, David N. Burrows, G. Chartas, Eric D. Feigelson, R. E. Griffiths, John A. Nousek, W. L. W. Sargent	2001	221
3	Optical and Infrared Properties of the 2 Ms Chandra Deep Field North X-Ray Sources The Astronomical Journal ·Amy J. Barger, L. L. Cowie, P. Capak, D. M. Alexander, F. E. Bauer, Enrique Fernandez, William Nielsen Brandt, GORDON P. GARMIRE, Ann E. Hornschemeier	2003	199
4	The Fall of Active Galactic Nuclei and the Rise of Star-forming Galaxies: A Close Look at the Chandra Deep Field X-Ray Number Counts The Astronomical Journal ·F. E. Bauer, D. M. Alexander, William Nielsen Brandt, Donald P. Schneider, Ezequiel Treister, Ann E. Hornschemeier, GORDON P. GARMIRE	2004	179
5	The Relationship of Hard X‐Ray and Optical Line Emission in Low‐Redshift Active Galactic Nuclei The Astrophysical Journal ·Timothy M. Heckman, Andrew F. Ptak, Ann E. Hornschemeier, Guinevere Kauffmann	2005	169
6	TheChandraDeep Survey of the Hubble Deep Field–North Area. II. Results from the Caltech Faint Field Galaxy Redshift Survey Area The Astrophysical Journal ·Ann E. Hornschemeier, William Nielsen Brandt, GORDON P. GARMIRE, Donald P. Schneider, Amy J. Barger, Patrick S. Broos, L. L. Cowie, Leisa K. Townsley, M. W. Bautz, David N. Burrows, G. Chartas, Eric D. Feigelson, R. E. Griffiths, D. Lumb, John A. Nousek, Lawrence W. Ramsey, W. L. W. Sargent	2001	164
7	THE EVOLUTION OF NORMAL GALAXY X-RAY EMISSION THROUGH COSMIC HISTORY: CONSTRAINTS FROM THE 6 MS CHANDRA DEEP FIELD-SOUTH The Astrophysical Journal ·Bret D. Lehmer, Antara Basu‐Zych, S. Mineo, William Nielsen Brandt, Rafael T. Eufrasio, Tassos Fragos, Ann E. Hornschemeier, Bin Luo, Yongquan Xue, F. E. Bauer, M. Gilfanov, P. Ranalli, Donald P. Schneider, Ohad Shemmer, Paolo Tozzi, Jonathan R. Trump, C. Vignali, J.-X. Wang, Mihoko Yukita, A. Zezas	2016	149
8	X-Ray, Optical, and Infrared Imaging and Spectral Properties of the 1 M[CLC]s[/CLC] Chandra Deep Field North Sources The Astronomical Journal ·Amy J. Barger, L. L. Cowie, William Nielsen Brandt, P. Capak, GORDON P. GARMIRE, Ann E. Hornschemeier, A. T. Steffen, E. H. Wehner	2002	139
9	THE 4 MsCHANDRADEEP FIELD-SOUTH NUMBER COUNTS APPORTIONED BY SOURCE CLASS: PERVASIVE ACTIVE GALACTIC NUCLEI AND THE ASCENT OF NORMAL GALAXIES The Astrophysical Journal ·Bret D. Lehmer, Yongquan Xue, William Nielsen Brandt, D. M. Alexander, F. E. Bauer, M. Brusa, A. Comastri, R. Gilli, Ann E. Hornschemeier, Bin Luo, Maurizio Paolillo, Andrew F. Ptak, Ohad Shemmer, Donald P. Schneider, Paolo Tozzi, C. Vignali	2012	138
10	The Chandra Deep Field North Survey. XIV. X-Ray–Detected Obscured AGN[CLC]s[/CLC] and Starburst Galaxies in the Bright Submillimeter Source Population The Astronomical Journal ·D. M. Alexander, F. E. Bauer, William Nielsen Brandt, Ann E. Hornschemeier, C. Vignali, GORDON P. GARMIRE, Donald P. Schneider, G. Chartas, S. C. Gallagher	2003	107
11	The Evolution of Disk Galaxies in the GOODS-South Field: Number Densities and Size Distribution The Astrophysical Journal ·Swara Ravindranath, Henry C. Ferguson, C.J. Conselice, Mauro Giavalisco, M. Dickinson, E. Chatzichristou, D. F. de Mello, S. Michael Fall, Jonathan P. Gardner, Norman A. Grogin, Ann E. Hornschemeier, Shardha Jogee, Anton M. Koekemoer, Claudia Kretchmer, Mario Livio, B. Mobasher, Rachel S. Somerville	2004	100
12	The [ITAL]CHANDRA[/ITAL][ITAL]Chandra[/ITAL] Deep Survey of the Hubble Deep Field North Area. IV. An Ultradeep Image of the HDF-N The Astronomical Journal ·William Nielsen Brandt, Ann E. Hornschemeier, D. M. Alexander, GORDON P. GARMIRE, Donald P. Schneider, Patrick S. Broos, Leisa K. Townsley, Marshall W. Bautz, Eric D. Feigelson, R. E. Griffiths	2001	92
13	The ultraluminous X-ray sources NGC 1313 X-1 and X-2: a broadband study with NuSTAR and XMM-Newton Technical University of Denmark, DTU Orbit (Technical University of Denmark, DTU) ·Matteo Bachetti, Vikram Rana, Dominic J. Walton, D. Barret, Fiona A. Harrison, Steven E. Boggs, Finn E. Christensen, William W. Craig, A. Fabian, Felix S. Fürst, Brian W. Grefenstette, Charles J. Hailey, Ann E. Hornschemeier, Kristin Kruse Madsen, Jon M. Miller, Andrew F. Ptak, D. Stern, Natalie A. Webb, William W. Zhang	2013	91
14	X-Ray Binary Luminosity Function Scaling Relations for Local Galaxies Based on Subgalactic Modeling Maryland Shared Open Access Repository (USMAI Consortium) ·Bret D. Lehmer, Rafael T. Eufrasio, P. Tzanavaris, Antara Basu‐Zych, Tassos Fragos, Andrea H. Prestwich, Mihoko Yukita, A. Zezas, Ann E. Hornschemeier, Andrew F. Ptak	2019	83
15	Supermassive Black Hole Accretion History Inferred from a Large Sample of [ITAL]CHANDRA[/ITAL][ITAL]Chandra[/ITAL] Hard X-Ray Sources The Astronomical Journal ·Amy J. Barger, L. L. Cowie, M. W. Bautz, William Nielsen Brandt, GORDON P. GARMIRE, Ann E. Hornschemeier, R. Ivison, Frazer N. Owen	2001	77
16	The Chandra Deep Field North Survey. XII. The Link between Faint X-Ray and Radio Source Populations The Astronomical Journal ·F. E. Bauer, D. M. Alexander, William Nielsen Brandt, Ann E. Hornschemeier, C. Vignali, GORDON P. GARMIRE, Donald P. Schneider	2002	72
17	A census of ultraluminous X-ray sources in the local Universe Monthly Notices of the Royal Astronomical Society ·Konstantinos Kovlakas, A. Zezas, Jeff J. Andrews, Antara Basu‐Zych, Tassos Fragos, Ann E. Hornschemeier, Bret D. Lehmer, Andrew F. Ptak	2020	66
18	A spectroscopic survey of dwarf galaxies in the Coma cluster: stellar populations, environment and downsizing Monthly Notices of the Royal Astronomical Society ·Russell J. Smith, John R. Lucey, Michael James Hudson, Steven P. Allanson, Terry J. Bridges, Ann E. Hornschemeier, Ronald O. Marzke, Neal A. Miller	2008	63
19	The 2–8 [CLC]ke[/CLC]V X-Ray Number Counts Determined from [ITAL]Chandra[/ITAL] Blank Field Observations The Astrophysical Journal ·L. L. Cowie, GORDON P. GARMIRE, Marshall W. Bautz, Amy J. Barger, William Nielsen Brandt, Ann E. Hornschemeier	2002	57
20	The Infrared Properties of Hickson Compact Groups The Astronomical Journal ·Kelsey E. Johnson, J. E. Hibbard, S. C. Gallagher, J. C. Charlton, Ann E. Hornschemeier, T. H. Jarrett, Amy E. Reines	2007	56

About Ann E. Hornschemeier

Ann E. Hornschemeier is a scholar working on Astronomy and Astrophysics, Nuclear and High Energy Physics, Instrumentation, Radiation and Computational Mechanics, having authored 97 papers that have together received 3.9k indexed citations. Recurring topics across this work include Galaxies: Formation, Evolution, Phenomena (74 papers), Astrophysical Phenomena and Observations (72 papers), Astrophysics and Cosmic Phenomena (40 papers), Gamma-ray bursts and supernovae (28 papers), Stellar, planetary, and galactic studies (15 papers), Astronomy and Astrophysical Research (12 papers), Astrophysics and Star Formation Studies (9 papers) and Pulsars and Gravitational Waves Research (5 papers). The work is most often cited by research in Instrumentation (882 citations), Astronomy and Astrophysics (3.8k citations), Nuclear and High Energy Physics (1.4k citations), Computational Mechanics (83 citations) and Atomic and Molecular Physics, and Optics (114 citations). Ann E. Hornschemeier has collaborated with scholars based in United States, Greece and United Kingdom. Frequent co-authors include William Nielsen Brandt, GORDON P. GARMIRE, F. E. Bauer, D. M. Alexander, Donald P. Schneider, Andrew F. Ptak, Amy J. Barger, L. L. Cowie, C. Vignali and G. Chartas. Their work appears in journals such as The Astrophysical Journal, The Astronomical Journal, Monthly Notices of the Royal Astronomical Society, Astronomy and Astrophysics and The Astrophysical Journal Supplement Series.

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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Ann E. Hornschemeier

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