Mohanraj Senniappan

About Mohanraj

Born in Tamilnadu, India
B.Sc., Physics from PSG College of Arts and Science, Coimbatore, TN, India
M.Sc., Physics from CHRIST (Deemed to be University), Bangalore, India
Since 2017, pursuing doctoral studies in the Data Intensive Astroparticle Physics group, under the guidance of Yvonne Becherini
Along with his doctoral studies, he works as a laboratory teaching assistant in the Physics department @LnU, Sweden

Teaching

Autumn 2021

1FY801 - Atom och Kärnfysik
1FY110 - Optik för Optiker
1FY808 - Elektricitetslära och magnetism
0FY100 - Fysik Bas 1a, Basår

Spring 2021

0FY101 - Fysik Bas 1b, Basår (Online)
1FY804 - Mekanik (Online)

Autumn 2020

1FY801 - Atom och Kärnfysik
1FY808 - Elektricitetslära och magnetism

Spring 2020

0FY100 - Fysik Bas 1b, Basår (Online)
1FY804 - Mekanik (Online)

Autumn 2019

0FY100 - Fysik Bas 1a, Basår
1FY801 - Atom och Kärnfysik
1FY808 - Elektricitetslära och magnetism

Spring 2019

1FY804 - Mekanik

Autumn 2018

1FY808 - Elektricitetslära och magnetism

Spring 2018

1FY804 - Mekanik

Research

Mohanraj's research interest primarily concerns high energy astrophysics experiments.

The ALTO/CoMET R&D project at Linnaeus University

ALTO is an R&D project aiming to build a Very-High-Energy gamma-ray observatory based on Water Cherenkov technology. He is responsible for Gamma/Hadron shower separation and Monte Carlo simulation monitoring in this project.

The H.E.S.S. collaboration

High Energy Stereoscopic System (H.E.S.S.) is a major ground-based gamma-ray observatory based on Air Cherenkov Technique. In this collaboration, he is an active member of the "Transients" working group and involved in Neutrino-Gamma and Gamma-ray Burst (GRB) team.

Previously he was a research scholar at TIFR - INO graduate school.

Seminars

Half-way PhD seminar: Optimising the detection of soft-spectrum gamma-ray sources with day & night observations, 14 Sep 2020.

Participation in schools/workshops

The 2nd Thai-CTA workshop on Astroparticle Physics (Virtual), 16 - 27 August 2021
ENCCS/CSC Practical Deep Learning workshop (Virtual), 16 - 17 February 2021
Cosmic Explosions, 27 May - 5 June 2019
DIAS Summer School on High Energy Astrophysics, 19 - 29 June 2018
Second ASTERICS-OBELICS International School, 3 - 8 June 2018

Conference oral presentations

GRB observations by H.E.S.S., Digitala Astronomdagarna 2021
Expected performance of the ALTO particle detector array
designed for 200 GeV - 50 TeV gamma-ray astronomy, ICRC 2021 (Virtual), 12 - 23 July 2021
Observing soft-spectrum gamma-ray sources with the future ALTO observatory, Partikeldagarna, (virtual), 23 Nov - 25 Nov 2020
Observing the sky continuously at extreme photon energies with ALTO/COMET, Partikeldagarna, 2 - 3 Oct 2019
Summer school participants presentation: Signal over Background discrimination for the ALTO observatory, Cosmic Explosions, 27 May - 5 Jun 2019

Conference posters

VI Big Data Conference (Virtual), 3- 4 Dec 2020
V Big Data Conference @ LNU, 5 - 6 Dec 2019
Astronomdagarna, 24 - 26 Oct 2019
IV Big Data Conference @ LNU, 29 - 30 Nov 2018

Conference participation

Partikeldagarna, 16 - 18 Oct 2018
III Big Data Conference @ LNU, 1 Dec 2017

Invited talk

CHRIST (Deemed to be University) Alumnus Talk, 11 July 2019

Skills

General: Data analysis chain management & exploration, Machine learning, HPCC
Tools: Python, ROOT (C++ framework)
Languages: Tamil (C2), English (C1), Svenska (A1)

Publications

Selected publications

Punch, M., Senniappan, M., Becherini, Y., Kukec Mezek, G., Thoudam, S., et al. (2023). Sensitivity to point-like sources of the ALTO atmospheric particle detector array, designed for 200GeV-50TeV gamma-ray astronomy. Journal of High Energy Astrophysics. 39. 1-13.
Status: Published
Senniappan, M., Becherini, Y., Punch, M., Thoudam, S., Bylund, T., et al. (2022). Expected performance of the ALTO particle detector array designed for 200 GeV - 50 TeV gamma-ray astronomy. Proceedings of Science : 37th International Cosmic Ray Conference (ICRC 2021), July 12th – 23rd, 2021 Online – Berlin, German.
Senniappan, M., Becherini, Y., Punch, M., Thoudam, S., Bylund, T., et al. (2021). Signal extraction in atmospheric shower arrays designed for 200 GeV–50 TeV γ-ray astronomy. Journal of Instrumentation. 16 (07).
Status: Published
Panchal, N., Senniappan, M., Kumar, A., Dey, T., Majumder, G., et al. (2017). A compact cosmic muon veto detector and possible use with the Iron Calorimeter detector for neutrinos. Journal of Instrumentation. 12.
Status: Published

Article in journal (Refereed)

Punch, M., Senniappan, M., Becherini, Y., Kukec Mezek, G., Thoudam, S., et al. (2023). Sensitivity to point-like sources of the ALTO atmospheric particle detector array, designed for 200GeV-50TeV gamma-ray astronomy. Journal of High Energy Astrophysics. 39. 1-13.
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Armand, C., et al. (2022). Search for Dark Matter Annihilation Signals in the HESS Inner Galaxy Survey. Physical Review Letters. 129 (11).
Status: Published
Aharonian, F., Benkhali, F.A., Anguener, E.O., Ashkar, H., Backes, M., et al. (2022). Time-resolved hadronic particle acceleration in the recurrent nova RS Ophiuchi. Science. 376 (6588). 77-80.
Status: Published
Senniappan, M., Becherini, Y., Punch, M., Thoudam, S., Bylund, T., et al. (2021). Signal extraction in atmospheric shower arrays designed for 200 GeV–50 TeV γ-ray astronomy. Journal of Instrumentation. 16 (07).
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Arcaro, C., et al. (2021). Searching for TeV Gamma-Ray Emission from SGR 1935+2154 during Its 2020 X-Ray and Radio Bursting Phase. Astrophysical Journal. 919 (2).
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Ashkar, H., et al. (2021). H.E.S.S. Follow-up Observations of Binary Black Hole Coalescence Events during the Second and Third Gravitational-wave Observing Runs of Advanced LIGO and Advanced Virgo. Astrophysical Journal. 923 (1).
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Arcaro, C., et al. (2021). LMC N132D : A mature supernova remnant with a power-law gamma-ray spectrum extending beyond 8 TeV. Astronomy and Astrophysics. 655.
Status: Published
Adams, C.B., Benbow, W., Brill, A., Buckley, J.H., Capasso, M., et al. (2021). Observation of the Gamma-Ray Binary HESS J0632+057 with the HESS, MAGIC, and VERITAS Telescopes. Astrophysical Journal. 923 (2).
Status: Published
Abdallah, H., Adam, R., Aharonian, F., Benkhali, F.A., Anguner, E.O., et al. (2021). Search for dark matter annihilation in the Wolf-Lundmark-Melotte dwarf irregular galaxy with HESS. Physical Review D : covering particles, fields, gravitation, and cosmology. 103 (10).
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Arcaro, C., et al. (2021). Evidence of 100 TeV gamma-ray emission from HESS J1702-420 : A new PeVatron candidate. Astronomy and Astrophysics. 653.
Status: Published
Abdalla, H., Adam, R., Aharonian, F., Benkhali, F.A., Anguner, E.O., et al. (2021). HESS and MAGIC observations of a sudden cessation of a very-high-energy gamma-ray flare in PKS 1510-089 in May 2016. Astronomy and Astrophysics. 648.
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Arcaro, C., et al. (2021). Revealing x-ray and gamma ray temporal and spectral similarities in the GRB 190829A afterglow. Science. 372 (6546). 1081-1085.
Status: Published
Abdalla, H., Aharonian, F., Ait Benkhali, F., Anguner, E.O., Arcaro, C., et al. (2021). Search for Dark Matter Annihilation Signals from Unidentified Fermi-LAT Objects with HESS. Astrophysical Journal. 918 (1).
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Arcaro, C., et al. (2021). TeV Emission of Galactic Plane Sources with HAWC and HESS. Astrophysical Journal. 917 (1).
Status: Published
Abdalla, H., Adam, R., Aharonian, F., Benkhali, F.A., Anguner, E.O., et al. (2020). An extreme particle accelerator in the Galactic plane : HESS J1826-130. Astronomy and Astrophysics. 644. 1-8.
Status: Published
Abdalla, H., Adam, R., Aharonian, F., Benkhali, F.A., Anguner, E.O., et al. (2020). Resolving acceleration to very high energies along the jet of Centaurus A. Nature. 582 (7812). 356-359.
Status: Published
Abdalla, H., Aharonian, F., Ait Benkhali, F., Anguner, E.O., Arakawa, M., et al. (2020). Resolving the Crab pulsar wind nebula at teraelectronvolt energies. Nature Astronomy. 4 (2). 167-173.
Status: Published
Abdallah, H., Adam, R., Aharonian, F., Benkhali, F.A., Anguner, E.O., et al. (2020). Search for dark matter signals towards a selection of recently detected DES dwarf galaxy satellites of the Milky Way with HESS. Physical Review D : covering particles, fields, gravitation, and cosmology. 102 (6). 1-20.
Status: Published
Abdalla, H., Adam, R., Aharonian, F., Benkhali, F.A., Anguner, E.O., et al. (2020). Detection of very-high-energy gamma-ray emission from the colliding wind binary eta Car with HESS. Astronomy and Astrophysics. 635. 1-8.
Status: Published
Abdalla, H., Adam, R., Aharonian, F., Benkhali, F.A., Anguner, E.O., et al. (2020). HESS detection of very high-energy gamma-ray emission from the quasar PKS 0736+017. Astronomy and Astrophysics. 633. 1-11.
Status: Published
Abdalla, H., Adam, R., Aharonian, F., Benkhali, F.A., Anguner, E.O., et al. (2020). HESS and Fermi-LAT observations of PSR B1259-63/LS 2883 during its 2014 and 2017 periastron passages. Astronomy and Astrophysics. 633. 1-14.
Status: Published
Abdalla, H., Adam, R., Aharonian, F., Benkhali, F.A., Anguner, E.O., et al. (2020). Probing the Magnetic Field in the GW170817 Outflow Using HESS Observations. Astrophysical Journal Letters. 894 (2). 1-5.
Status: Published
Abdalla, H., Adam, R., Aharonian, F., Benkhali, F.A., Anguner, E.O., et al. (2020). Simultaneous observations of the blazar PKS 2155-304 from ultra-violet to TeV energies. Astronomy and Astrophysics. 639. 1-13.
Status: Published
Abdalla, H., Adam, R., Aharonian, F., Benkhali, F.A., Anguner, E.O., et al. (2020). Very high energy gamma-ray emission from two blazars of unknown redshift and upper limits on their distance. Monthly notices of the Royal Astronomical Society. 494 (4). 5590-5602.
Status: Published
Abdalla, H., Adam, R., Aharonian, F., Benkhali, F.A., Anguner, E.O., et al. (2019). A very-high-energy component deep in the gamma-ray burst afterglow. Nature. 575 (7783). 464-467.
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Arakawa, M., et al. (2019). HESS and Suzaku observations of the Vela X pulsar wind nebula. Astronomy and Astrophysics. 627. 1-16.
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Arakawa, M., et al. (2019). The 2014TeV gamma-Ray Flare of Mrk 501 Seen with HESS : Temporal and Spectral Constraints on Lorentz Invariance Violation. Astrophysical Journal. 870 (2).
Status: Published
Abdalla, H., Adam, R., Aharonian, F., Benkhali, F.A., Anguner, E.O., et al. (2019). Constraints on the emission region of 3C 279 during strong flares in 2014 and 2015 through VHE gamma-ray observations with HESS. Astronomy and Astrophysics. 627. 1-19.
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguener, E.O., Arakawa, M., et al. (2019). Upper limits on very-high-energy gamma-ray emission from core-collapse supernovae observed with HESS. Astronomy and Astrophysics. 626. 1-11.
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Arakawa, M., et al. (2019). Particle transport within the pulsar wind nebula HESS J1825-137. Astronomy and Astrophysics. 621.
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Arakawa, M., et al. (2019). VHE gamma-ray discovery and multiwavelength study of the blazar 1ES 2322-409. Monthly notices of the Royal Astronomical Society. 482 (3). 3011-3022.
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Arakawa, M., et al. (2019). HESS observations of the flaring gravitationally lensed galaxy PKS 1830-211. Monthly notices of the Royal Astronomical Society. 486 (3). 3886-3891.
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Arakawa, M., et al. (2018). Searches for gamma-ray lines and 'pure WIMP' spectra from Dark Matter annihilations in dwarf galaxies with HESS. Journal of Cosmology and Astroparticle Physics. (11).
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Arakawa, M., et al. (2018). First ground-based measurement of sub-20 GeV to 100 GeV gamma-Rays from the Vela pulsar with HESS II. Astronomy and Astrophysics. 620.
Status: Published
Abdalla, H., Aharonian, F., Benkhali, F.A., Anguner, E.O., Arakawa, M., et al. (2018). The starburst galaxy NGC 253 revisited by HESS and Fermi-LAT. Astronomy and Astrophysics. 617.
Status: Published
Panchal, N., Senniappan, M., Kumar, A., Dey, T., Majumder, G., et al. (2017). A compact cosmic muon veto detector and possible use with the Iron Calorimeter detector for neutrinos. Journal of Instrumentation. 12.
Status: Published

Conference paper (Refereed)

Becherini, Y., Bylund, T., Ernenwein, J., Kukec Mezek, G., Punch, M., et al. (2022). The CoMET multiperspective event tracker for wide field-of-view gamma-ray astronomy. Proceedings of Science : 37th International Cosmic Ray Conference (ICRC 2021), July 12th – 23rd, 2021 Online – Berlin, German.
Senniappan, M., Becherini, Y., Punch, M., Thoudam, S., Bylund, T., et al. (2022). Expected performance of the ALTO particle detector array designed for 200 GeV - 50 TeV gamma-ray astronomy. Proceedings of Science : 37th International Cosmic Ray Conference (ICRC 2021), July 12th – 23rd, 2021 Online – Berlin, German.
Bylund, T., Kukec Mezek, G., Senniappan, M., Becherini, Y., Punch, M., et al. (2021). Studies of Gamma-Ray Shower Reconstruction UsingDeep Learning. Proceedings of Science : 37th International Cosmic Ray Conference (ICRC 2021), July 12th – 23rd, 2021 Online – Berlin, German.