Astronomy and Astrophysics research group

Astronomy and Astrophysics research group

 

Main research focus and other areas of research interest of the RG: Radio Astronomy: Astrophysics of Compact Objects, Pulsar Timing, Galactic and extragalactic radio sources, Optical and X-ray Astronomy: Star formation and stellar evolution, Asteroseismology, Cosmic rays

 

Title of most recent research project: Multi-wavelength Study of Blazars across Cosmic Time

 

Other current or completed research projects

  • Pan-African Planetary and Space Science Network

(PAPSSN) – Intra-Africa Academic Mobility Programme

  • Focus on Africa Space Science for Future Development (FAST4Future)

Name of the Coordinator: Prof. Augustine A. Ubachukwu.

UNN email address of the RG:

UNN email address of the coordinator: augustine.ubachukwu@unn.edu.ng

Current webpage of the RG:

Phone number of the RG: +234 (0) 8037734303

Phone number of the coordinator: +234 (0) 8037734303

Base Faculty/Institute/Center of the RG: Faculty of Physical Sciences

Department of the Coordinator: Department of Physics and Astronomy

 

List and brief profiles of members (one paragraph per member) with their UNN website url to their detailed CVs (hyperlinks are OK)

1 Prof. Augustine A. Ubachukwu
2 Finbarr Chidi, Odo hails from Enugu State of Nigeria. He holds a PhD degree in astrophysics from University of Nigeria and currently teaches Physics & Astronomy at the university. He is a team member of the Pan-African School of Emerging Astronomer and Assistant

Editor-in-Chief of Publication of the Astronomical Society of Nigeria
3 Dr Innocent O. Eya is a lecturer in the Department of Science Laboratory Technology (Physics/Electronics technique), Faculty of Physical Sciences, University of Nigeria, Nsukka, Nigeria, where he teaches undergraduate physics courses. He coordinates the Physics/Electronics Techniques of the department, where he reports directly to the Head of the Department. He is a Consortium Board member and UNN Local Contact Person (LCP) of the Pan African Planetary and Space Science Network (PAPSSN) and also a member of the Focus on Africa Space Science and Technology for Future Development (FAST4Future). His research interests are the Astrophysics of compact objects, Pulsar Timing, Galactic and extragalactic radio sources and Atmospheric cosmic ray counts, where he has done some work on neutron star rotational irregularities, especially in Pulsar Glitches. Also, he has collaborated with researchers in Extragalactic Astronomy, especially in the unification of Active Galactic Nuclei (AGN).
4 Christian Ikechukwu Eze is a lecturer I at the Department of Physics and Astronomy, University of Nigeria, Nsukka, Nigeria (UNN) and formerly, a Consortium Board member and UNN Local Contact Person (LCP) of the Pan African Planetary and Space Science Network (PAPSSN). He is also a Ph.D. student at the Nicolaus Copernicus Astronomical Center (CAMK) of the Polish Academy of Sciences, Warsaw, Poland and a scholar at the Geoplanet Doctoral School, Warsaw, Poland. Christian is a member of some international consortia/collaborations and professional organizations such as Focus on Africa Space Science and Technology 4 Future development (FAST4Future), African Astronomical Society (AFAS) and Astronomical Society of Nigeria (ASN). His research areas include: Asteroseismology, Stellar Variability, Neutron stars and Active Galactic Nuclei (AGN).

eze.christian@unn.edu.ng
5 Dr. Evaristus  Iyida is a lecturer and researcher in the Department of Physics and Astronomy, University of Nigeria. He holds B.Sc (Physics and Astronomy), M.Sc., Ph.D (Astrophysics) obtained from the Department of Physics and Astronomy, University of Nigeria, Nsukka. His research interests are in the broad areas of Extra-galactic Astronomy/Evolution of active galactic nuclei, Forbush Decreases/Reductions in the galactic cosmic ray and Phenomenology of timing irregularities in Pulsars. Dr. Evaristus Iyida has published many research works in peer-reviewed journals both locally and internationally.

uzochukwu.iyida@unn.edu.ng

 

 

 

Members Google Scholar Citation links

  Name link
1 Prof. Augustine A. Ubachukwu https://scholar.google.com/citations?user=qj1tUXQAAAAJ&hl=en
2 Dr Finbarr Chidi https://scholar.google.com/citations?user=Bp79QT8AAAAJ&hl=en
3 Dr Innocent O. Eya https://scholar.google.com/citations?hl=en&user=GeSohl4AAAAJ
4 Eze, Christian Ikechukwu https://scholar.google.com/citations?hl=en&user=RP87MKkAAAAJ
5 Dr. Evaristus  Iyida https://scholar.google.com/citations?user=7_LT0DUAAAAJ&hl=en&oi=ao
6 Prof. Augustine Ejikeme Chukwude https://scholar.google.com/citations?user=JIQ5lFwAAAAJ&hl=en
7 Prof. Johnson O. Urama https://scholar.google.com/citations?user=TemvFB8AAAAJ&hl=en
8 Dr. O Okike https://scholar.google.com/citations?user=WV2oQ6oAAAAJ&hl=en
9 Dr. Jibrin A. Alhassan https://scholar.google.com/citations?user=EdLCcaoAAAAJ&hl=en

 

 

Members Researchgate links

  Name link
1 Dr Innocent O. Eya https://www.researchgate.net/profile/Innocent_Eya
2 Eze, Christian Ikechukwu https://www.researchgate.net/profile/Christian-Eze-4
3 Dr. Evaristus  Iyida https://www.researchgate.net/profile/Evaristus-Iyida

 

10 key publications of the RG from 2019 till date

  1. A Alhassan., O. Okike & A.E Chukwude, 2022, “Testing the Simultaneity of Forbush Decreases with Algorithm-Selected Forbush Event Catalogue” J. Astrophys. Astr. 43:6 https://doi.org/10.1007/s12036-021-09790-8
  2. Okike & J.A Alhassan. 2022 “Preliminary Investigation of the Multivariate Relations between Program Selected Forbush Decreases, Worldwide Lightning Frequency, Sunspot Number and other Solar-Terrestrial Drivers” Eur. Phys. J. Plus 137:317, https://doi.org/10.1140/epjp/s13360-022-02514-z
  3. O. Eya., J. A. Alhassan., E. U. Iyida ., A. E. Chukwude & J. O. Urama. 2022, “On the Pulsar Spin Frequency Derivatives and the Glitch Activity” Astrophys. and Space Science.  367:28 https://doi.org/10.1007/s10509-022-04059-0
  4. A Alhassan., O. Okike & A.E Chukwude, 2022, “Testing the Empirical Relationship between Forbush Decreases and Cosmic Ray Diurnal Anisotropy” Res. Astron. Astrophys, 22:055014. https://doi.org/10.1088/1674-4527/ac5ee9
  5. E. Ugwoke ., A. A. Ubachukwu., J. O. Urama., O. Okike., J. A. Alhassan & A. E. Chukwude, 2022, “Analysis of Ground Level Enhancement Events of 1989 September 29; 2001 April 15 and 2005 January 20” Res. Astron. Astrophys, 23:035017, 22:105008, https://doi.org/10.1088/1674-4527/ac8b58
  6. U. Iyida, I.O. Eya & C.I. Eze, 2022, “Testing the Consistency of Unified Scheme of        Seyfert Galaxies” J. Astron. Space Sci. 39 (2), 43-50.
  7. U. Iyida, C.I. Eze & F.C. Odo, 2022, “On the evolution of Seyfert galaxies, BL   Lacertae objects and flat-spectrum radio quasars” Astrophysics and Space  science, 367, 11 https://doi.org/10.1007/s10509-022-04042-9
  8. U. Iyida, F.C. Odo, A.E. Chukwude & A.A. Ubachukwu, 2022, “Multi-frequency study of spectral indices of BL Lacertae objects and flat-spectrum radio quasars” New Astronomy. 90, 101666, https://doi.org/10.1016/j.newast.2021.101666
  9. I. Eze, E. U. Iyida, I. O. Eya, 2022, “On the fractional glitch recoveries and pulsar spin properties”Astronomische Nachrichten, 343 (5), e210086. https://doi.org/10.1002/asna.20210086

10. C. J. Ugwu., J. O. Chibueze ., J. Morgan., T. Csengeri., A. E. Chukwude., D. J. van der Walt & J. A. Alhassan 2023, “Probing gas kinematics towards the high-mass protostellar object G358.46 −0.39”, MNRAS 520, 4747–4759,  https://doi.org/10.1093/mnras/stad376