Johnson O. Urama

University of Nigeria

Publishing since 1999, latest 2024

Astronomy and Astrophysics
Oceanography
Geophysics
Aerospace Engineering
Biomedical Engineering
Archeology

Publications: 351999–2024
Citations: 379to those papers
h-index: 11i10-index 12
Field-weighted impact: 0.741.00 is the world average
World top 10%: 6%2 of 35 scored papers
Open access: 71%25 papers free to read

2 other works — preprints, datasets and the like — are listed but not counted.

By year

Papers, and the citations to them

Publications, left axisCitations to that year’s papers, right axis2026 still in progress

Career

On their papers

Every institution they have given on a paper.

Publications

35 in all

The ORT and the uGMRT pulsar monitoring program: Pulsar timing irregularities & the Gaussian process realisation
2024Publications of the Astronomical Society of AustraliaJournalOpen accessSenior author4 citations10.1017/pasa.2024.96
Principal Component Analysis of Ground Level Enhancement of Cosmic Ray Events
2023

Download CV:PDFWord

Citations received each year

Peerford

To all their work, old papers included. Google Scholar also counts citations from theses, books and web pages, so its line runs higher.

What they work on

From the classification of each paper

Subfields

Astronomy and Astrophysics3086%
Oceanography1234%
Geophysics617%
Aerospace Engineering514%
Biomedical Engineering514%
Archeology39%
Atomic and Molecular Physics, and Optics39%
Anthropology26%
Atmospheric Science26%
Nuclear and High Energy Physics26%

Physical Sciences
Social Sciences

Topics most written on

Pulsars and Gravitational Waves Research20
Geophysics and Gravity Measurements12
Superconducting Materials and Applications5
Astrophysical Phenomena and Observations4
Historical Astronomy and Related Studies4
Radio Wave Propagation Studies4
Advanced Frequency and Time Standards3
Gamma-ray bursts and supernovae3
GNSS positioning and interference3
High-pressure geophysics and materials3
Historical and Architectural Studies3
History and Developments in Astronomy3

Who they write with

Their most frequent co-authors, and the papers those co-authors share

Where their co-authors are

51% of their papers have a co-author abroad

papers co-written1234567Home

Most frequent partner countries

South Africa9
United States7
China4
United Kingdom3
Netherlands3
Russia3
Australia2
India2

Papers with at least one author in that country.

Institutions written with most

Hartebeesthoek Radio Astronomy ObservatoryZA6 papers
Ebonyi State UniversityNG4 papers
Chinese Academy of SciencesCN3 papers
P.N. Lebedev Physical Institute of the Russian Academy of SciencesRU3 papers
Astro Space CenterRU3 papers
Xinjiang Astronomical ObservatoryCN3 papers
National Office for Technology Acquisition and PromotionNG3 papers
University of ManchesterGB2 papers
Space Research Organisation NetherlandsNL2 papers
National Centre for Radio AstrophysicsIN2 papers

Where they publish

Proceedings of the International Astronomical Union6
Monthly Notices of the Royal Astronomical Society4
Research in Astronomy and Astrophysics3
The Astrophysical Journal3
Advances in Space Research2
Astrophysics and Space Science2

Development goals addressed

From each paper’s title and abstract

14Life below water3
16Peace, justice and strong institutions3
7Affordable and clean energy2
11Sustainable cities and communities1
13Climate action1
17Partnerships for the goals1

Most cited

Evidence for Free Precession in the Pulsar B1642−03
The Astrophysical Journal
200169 citationsOpen access · Bronze
A strong – correlation in radio pulsars with implications for torque variations
Monthly Notices of the Royal Astronomical Society Letters
200645 citationsOpen access · Bronze
TEMPORAL AND SPECTRAL EVOLUTION IN X- AND γ-RAYS OF MAGNETAR 1E 1547.0–5408 SINCE ITS 2008 OCTOBER OUTBURST: THE DISCOVERY OF A TRANSIENT HARD PULSED COMPONENT AFTER ITS 2009 JANUARY OUTBURST
The Astrophysical Journal

Research in Astronomy and Astrophysics

On the pulsar spin frequency derivatives and the glitch activity

2022Astrophysics and Space ScienceJournalOpen accessSenior author2 citations10.1007/s10509-022-04059-0

The Pan-African School for Emerging Astronomers

2021Nature AstronomyJournalSenior author2 citations10.1038/s41550-021-01301-7

On the distributions of pulsar glitch sizes and the inter-glitch time intervals

2019Research in Astronomy and AstrophysicsJournalOpen access18 citations10.1088/1674-4527/19/6/89

ENTRAINMENT FACTOR OF INDIVIDUAL GLITCH FRACTIONAL MOMENT OF INERTIA

2019Revista Mexicana de Astronomía y AstrofísicaJournalOpen access1 citation10.22201/ia.01851101p.2019.55.01.01

Predicting gravitational lensing by stellar remnants

2017Monthly Notices of the Royal Astronomical SocietyJournalOpen access15 citations10.1093/mnras/stx2985

H2CO Observations Towards CH3OH Maser Sources

2012Proceedings of the International Astronomical UnionJournalOpen access1 citation10.1017/s1743921313000719

On the glitch evolution of pulsars

2012Proceedings of the International Astronomical UnionJournalOpen accessFirst author0 citations10.1017/s1743921312024775

Seasonal variation of surface refractivity over Nigeria

2011Advances in Space ResearchJournalSenior author11 citations10.1016/j.asr.2011.08.025

Traditional rites and their celestial alignments in parts of south-eastern Nigeria

2011Proceedings of the International Astronomical UnionJournalOpen accessFirst author1 citation10.1017/s1743921311012841

Observations of microglitches in Hartebeesthoek Radio Astronomy Observatory radio pulsars

2010Monthly Notices of the Royal Astronomical SocietyJournalOpen accessSenior author22 citations10.1111/j.1365-2966.2010.16789.x

The African Cultural Astronomy Project

2009Proceedings of the International Astronomical UnionJournalOpen accessFirst author4 citations10.1017/s1743921311002134

African Cultural Astronomy

2007Astrophysics and space science proceedingsBook23 citations10.1007/978-1-4020-6639-9

Astronomy and Culture in Nigeria

2007Astrophysics and space science proceedingsBook chapterFirst authorCorresponding4 citations10.1007/978-1-4020-6639-9_17

Radio pulsar spin-down stability

2007Advances in Space ResearchJournalFirst authorCorresponding0 citations10.1016/j.asr.2007.01.048

A strong – correlation in radio pulsars with implications for torque variations

2006Monthly Notices of the Royal Astronomical Society LettersJournalOpen accessFirst author45 citations10.1111/j.1745-3933.2006.00192.x

Monitoring of Pulse Intensity and Mode Changing for PSR B0329+54

2006天文和天体物理学研究：英文版JournalOpen access7 citations10.1088/1009-9271/6/s2/14

Radio pulsar spin-down stability

2006cospJournalFirst authorCorresponding0 citations

Extremely large telescopes and the extremely small sources

2005Proceedings of the International Astronomical UnionJournalOpen accessFirst authorCorresponding0 citations10.1017/s1743921306000603

Extremely large telescopes and the developing nations

2005Proceedings of the International Astronomical UnionJournalOpen accessFirst author0 citations10.1017/s1743921306001025

Glitch monitoring in PSRs B1046-58 and B1737-30

2002Monthly Notices of the Royal Astronomical SocietyJournalFirst authorCorresponding20 citations10.1046/j.1365-8711.2002.05099.x

Evidence for Free Precession in the Pulsar B1642−03

2001The Astrophysical JournalJournalOpen accessSenior author69 citations10.1086/320438

The Challenges of Astronomy in Nigeria

2001Physica ScriptaJournalOpen accessFirst authorCorresponding1 citation10.1238/physica.topical.097a00020

Evidence for Free Precession in the Pulsar B1642–03

2000International Astronomical Union ColloquiumJournalOpen accessSenior author5 citations10.1017/s0252921100059145

Glitch Behavior of the Pulsar B1822–09 in the Range 0.1–2.3 GHz

2000International Astronomical Union ColloquiumJournalOpen accessSenior author1 citation10.1017/s0252921100059182

Vela-size glitch rates in youthful pulsars

1999Monthly Notices of the Royal Astronomical SocietyJournalOpen accessFirst author26 citations10.1046/j.1365-8711.1999.02902.x

Astrophysics and space science proceedings

International Astronomical Union Colloquium2

How it can be read

71% free to read

Hybrid 2 · 6%Open in a subscription journal
Bronze 21 · 60%Free to read, no open licence
Green 2 · 6%A copy in a repository
Closed 10 · 29%Behind a paywall

Who funds it

7 of 35 papers name a funder

National Aeronautics and Space Administration3
Goddard Space Flight Center2
National Science Foundation2
Abdus Salam International Centre for Theoretical Physics1
Alfred P. Sloan Foundation1
Brookhaven National Laboratory1
College of Engineering, Michigan State University1
European Space Agency1

World top 10%Open access · Bronze

Vela-size glitch rates in youthful pulsars

Monthly Notices of the Royal Astronomical Society

199926 citationsOpen access · Bronze

Angular Momentum Transfer and Fractional Moment of Inertia in Pulsar Glitches

The Astrophysical Journal

201723 citationsOpen access · Bronze