Conference Proceedings

Peer-reviewed conference proceedings:


Published in 2022


  • Development of tools for SALT/RSS spectropolarimetry reductions: applica ion to the blazar 3C279

Justin Cooper, Brian van Soelen and Richard J. Britto

Pre-published on: January 26, 2022

DOI: https://doi.org/10.22323/1.401.0056

https://pos.sissa.it/401/056/


  • Optical Spectropolarimetry Observations of the BL Lac-type object PKS 0537-441 after a period of quiescence

J. Barnard, B. van Soelen, J. Cooper, R. J. Britto, J.P. Marais, I. van der Westhuizen, D. Buckley, H. Schutte, M. Böttcher, B. Vaidya, S. Achariya and A. Martin-Carrillo

Pre-published on: December 20, 2021

DOI: https://doi.org/10.22323/1.401.0009

https://pos.sissa.it/401/009/


Published in 2018


    • Fits to the spectra of broad-line region of active galactic nuclei and opacities for two-photon pair production

M. Ntshatsha, S. Razzaque and R. J. Britto

High Energy Astrophysics in Southern Africa – HEASA2018

1-3 August, 2018, Parys, Free State, South Africa

PoS(HEASA2018)049

  • Transient emission of selected CRTS Cataclysmic Variables

H. Szegedi, A. Odendaal, P. Meintjes, B. van Soelen, J.P. Marais, A. Rajoelimanana, M.M. Nyamai, R. J. Britto, L. Hanlon, D. Murphy, A. Martin-Carrillo, M. Motsoaledi and J.R. Thorstensen

The Golden Age of Cataclysmic Variables and Related Objects IV

11-16 September, 2017, Palermo, Italy

Published on: September 13, 2018

DOI: https://doi.org/10.22323/1.315.0021

https://pos.sissa.it/315/021/


Published in 2017


  • Studies of optical/gamma-ray flares of blazar 4C +01.02: Recent updates from the 2016-2017 observations

Richard J. Britto (on behalf of the Fermi-LAT Collaboration), Johannes P. Marais, Brian van Soelen,

Markus Boettcher, Hester M. Schutte, David Buckley, Abe Facone

Proccedings of the 5th Annual Conference on High Energy Astrophysics in Southern Africa (HEASA 2017),

University of Witwatersrand, Johannesburg, 3-6 October 2017

PoS(HEASA2017)013


  • SALT Spectropolarimetry and Self-Consistent SED and Polarization Modeling of Blazars

M. Böttcher, H. Schutte, B. van Soelen, R. J. Britto (on behalf of the Fermi-LAT Collaboration), J. P. Marais, and D. A. H. Buckley

Proceedings of the 7th International Fermi Symposium, held 15-20 October 2017,

in Garmisch-Partenkirchen, Germany (IFS2017).

PoS(IFS2017)021


  • SALT Spectropolarimetry and Self-Consistent SED and Polarization Modeling of Blazars

M. Böttcher, B. van Soelen, R. J. Britto (on behalf of the Fermi-LAT Collaboration), D. A. H. Buckley, J. P. Marais and H. Schutte

Proceeding of the “Polarised Emission from Astrophysical Jets” conference,

12–16 June 2017, Ierapetra, Greece, Galaxies 2017, 5, 52

doi:10.3390/galaxies5030052


Published in 2016


  • Production of High Energy Radiation in the Relativistic Jets of Fermi-LAT Blazars

R. J. Britto (on behalf of the Fermi-LAT Collaboration), P. J. Meintjes and B. van Soelen

Proccedings of the MONDELLO WORKSHOP 2016 - Frontier Research in Astrophysics

23-28 May 2016, Palermo, Italy

PoS(FRAPWS2016)055


  • New Discoveries and Surprises Revealed through SALT Spectroscopy of the Unclassified Fermi-LAT Sources

B. Van Soelen, L. Klindt, J. P. Marais, R. J. Britto, P. Meintjes, P. Vaisanen, L. Hanlon, D. Murphy

Proceedings of the MONDELLO WORKSHOP 2016 - Frontier Research in Astrophysics

23-28 May 2016, Palermo, Italy

PoS(FRAPWS2016)034


  • Observations of the flaring Fermi-LAT blazar 4C +01.02 and prospects in spectro-polarimetry with SALT-RSS

R. J. Britto (on behalf of the Fermi-LAT Collaboration), J. P. Marais, P. J. Meintjes, B. van Soelen, M. Böttcher, D. A. H. Buckley, S. Crawford, A. Rajoelimanana

Proceedings of the 4th Annual Conference on High Energy Astrophysics in Southern Africa (HEASA 2016),

25–26 August 2016, SAAO, Cape Town, South Africa,

Eds. M. Boettcher, D. Buckley, S. Colafrancesco, P. Meintjes and S. Razzaque.

PoS(HEASA 2016)021


  • Characterising the Fermi-LAT BCUs: Optical Spectroscopy and Neural Networks

B. van Soelen, J. P. Marais, R. J. Britto, G. Chiaro, L. Klindt, P. J. Meintjes, David Salvetti

Proceedings of the 4th Annual Conference on High Energy Astrophysics in Southern Africa (HEASA 2016),

25–26 August 2016, SAAO, Cape Town, South Africa,

Eds. M. Boettcher, D. Buckley, S. Colafrancesco, P. Meintjes and S. Razzaque.

PoS(HEASA 2016)019


Published in 2015


  • Fermi-LAT Observation of 3C 454.3 during its May-July 2014 Outburst

R. J. Britto, S. Buson, B. Lott, S. Razzaque and E. Bottacini, (on behalf of the Fermi-LAT Collaboration)

Proceedings of the 3rd Annual Conference on High Energy

Astrophysics in Southern Africa (HEASA2015), 18-20 June 2015, Johannesburg,

South Africa, Eds. M. Boettcher, D. Buckley, S. Colafrancesco, P. Meintjes and S. Razzaque

PoS(HEASA 2015)021


  • Study of flaring quasars using optical/gamma-ray correlations

Richard Britto

Proceedings of Science, SALT Science Conference 2015

STIAS, Stellenbosch, South Africa, 1-5 June 2015

PoS(SSC2015)032


Feraol F. Dirirsa, Richard J. Britto and Soebur Razzaque, on behalf of the Fermi-LAT Collaboration

Proceedings of the 60th Annual Conference of the South African Institute of Physics (SAIP2015),

edited by Makaiko Chithambo (RU) and André Venter (NMMU) (2015), pp. 284 – 289, ISBN: 978-0-620-70714-5.

Available online at http://events.saip.org.za/getFile.py/access?resId=0&materialId=5&confId=53


  • Possible extragalactic astrophysical counterparts of IceCube neutrino events

Reetanjali Moharana, Richard J. Britto and Soebur Razzaque

Proceedings of the 60th Annual Conference of the South African Institute of Physics (SAIP2015),

edited by Makaiko Chithambo (RU) and André Venter (NMMU) (2015), pp. 314 – 319., ISBN: 978a-0-620-70714-5.

Available online at http://events.saip.org.za/getFile.py/access?resId=0&materialId=5&confId=53


Published in 2014


Richard J. G. Britto, Soebur Razzaque and Benoit Lott, on behalf of the Fermi-LAT Collaboration

Published in the Proceedings of SAIP2014, the 59th Annual Conference of the South African Institute of Physics, ISBN: 978-0-620-65391-6


Published in 2011


  • Observations with the High Altitude Gamma-Ray (HAGAR) telescope array in the Indian Himalayas

R. J. Britto, B. S. Acharya, G. C. Anupama, N. Bhatt, P. Bhattacharjee, S. Bhattacharya, V. R. Chitnis, R. Cowsik, N. Dorji, S. K. Duhan, K. S. Gothe, P. U. Kamath, R. Koul, P. K. Mahesh, A. Mitra, B. K. Nagesh, N. K. Parma, T. P. Prabhu, R. C. Rannot, S. K. Rao, L. Saha, F. Saleem, A. K. Saxena, S. K. Sharma, A. Shukla, B. B. Singh, R. Srinivasan, G. Srinivasulu, P. V. Sudersanan, A. K. Tickoo, D. Tsewang, S. S. Upadhya, P. R. Vishwanath, K. K. Yadav

Proc. of “European Cosmic Ray Symposium”, Turku, Finland, August 3-6, 2010

Astrophys. Space Sci. Trans., 7, 501-505, 2011


Non peer-reviewed conference proceedings:


Published in 2016


R. J. Britto*, E. Bottacini*, M. Böttcher, D. A. H. Buckley, S. Buson*, B. Lott*, J. P. Marais, P. J. Meintjes, S. Razzaque*, B. van Soelen (on behalf of the Fermi-LAT Collaboration)

SF2A-2016: Proceedings of the Annual meeting of the French Society of Astronomy and

Astrophysics. Eds.: C. Reylé, J. Richard, L. Cambrésy, M. Deleuil, E. Pécontal, L. Tresse and I. Vauglin,

held 14–17 June, 2016 at the Centre de Recherche Astrophysique de Lyon, pp.93–101

http://adsabs.harvard.edu/abs/2016sf2a.conf...93B


  • Search for extragalactic astrophysical counterparts of IceCube neutrino events

Reetanjali Moharana, Richard J. G. Britto and Soebur Razzaque

Appeared in the 34th International Cosmic Ray Conference Proceedings (ICRC 2015), The Hague, The Netherlands)

arXiv:1602.03694 [astro-ph.HE]


Published in 2015


  • Spectral Studies of Flaring FSRQs at GeV Energies Using Pass 8 Fermi-LAT Data

Richard Britto, Soebur Razzaque and Benoit Lott, on behalf of the Fermi-LAT Collaboration

7 pages, 4 figures, 4 tables, 2014 Fermi Symposium proceedings - eConf C14102,

arXiv:1502.07624 [astro-ph.HE]


Published in 2014


  • Spectral studies of FSRQs: constraining absorption models in the BLR at GeV energies

R. J. Britto, S. Razzaque, and B. Lott, on behalf of the Fermi-LAT Collaboration

High Energy Astrophysics in Southern Africa 2014 (HEASA2015): A multi-frequency perspective of new frontiers in High Energy Astrophysics in Southern Africa

Boyden Observatory, April 24–25, 2014, Editors: B. van Soelen and P.J. Meintjes, Mem. S.A. It. Vol. 86, 23


Published in 2012


  • VHE Gamma-Ray Astronomy in India: Status of HIGRO and Participation in CTA

R. J. Britto, B. S. Acharya, J. M. Ahire, G. C. Anupama, N. Bhatt, P. Bhattacharjee, S. Bhattacharyya, V. R. Chitnis, R. Cowsik, N. Dorji, S. K. Duhan, K. S. Gothe, P. U. Kamath, R. Koul, P. K. Mahesh, P. Majumdar, J. Manoharan, A. Mitra, B. K. Nagesh, N. K. Parmar, T. P. Prabhu, R. C. Rannot, S. K. Rao, L. Saha, F. Saleem, A. K. Saxena, S. K. Sharma, A. Shukla, B. B. Singh, R. Srinivasan, G. Srinivasulu, P. V. Sudersanan, A. K. Tichoo, D. Tsewang, S. S. Upadhya, P. R. Vishwanath, K. K. Yadav

SF2A-2012: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics,

Eds.: S. Boissier, P. de Laverny, N. Nardetto, R. Samadi, D. Valls-Gabaud and H. Wozniak, pp.571-577


Published in 2011


  • Data analysis method for the search of point sources of gamma rays with the HAGAR telescope array

R. J. Britto, B. S. Acharya, G. C. Anupama, P. Bhattacharjee, V. R. Chitnis, R. Cowsik, N. Dorji, S. K. Duhan, K. S. Gothe, P. U. Kamath, P. K. Mahesh, J. Manoharan, B. K. Nagesh, N. K. Parmar, T. P. Prabhu, S. K. Rao, L. Saha, F. Saleem, A. K. Saxena, S. K. Sharma, A. Shukla, B. B. Singh, R. Srinivasan, G. Srinivasulu, P. V. Sudersanan, D. Tsewang, S. S. Upadhya, P. R. Vishwanath

Proceedings of the 32rd International Cosmic Ray Conference, held in Beijing, China, 11-18 August 2011 .


  • Status of the Himalayan Gamma-Ray Observatory (HIGRO) and observation with HAGAR at very high energies

R. J. Britto, B. S. Acharya, G. C. Anupama, N. Bhatt, P. Bhattacharjee, S. Bhattacharya, V. R. Chitnis, R. Cowsik, N. Dorji, S. K. Duhan, K. S. Gothe, P. U. Kamath, R. Koul, P. K. Mahesh, J. Manoharan A. Mitra, B. K. Nagesh, N. K. Parma, T. P. Prabhu, R. C. Rannot, S. K. Rao, L. Saha, F. Saleem, A. K. Saxena, S. K. Sharma, A. Shukla, B. B. Singh, R. Srinivasan, G. Srinivasulu, P. V. Sudersanan, A. K. Tickoo, D. Tsewang, S. S. Upadhya, P. R. Vishwanath, K. K. Yadav

SF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics,

Eds.: G. Alecian, K. Belkacem, R. Samadi and D. Valls-Gabaud, pp.539-543


  • Data analysis method for the search of point sources of gamma rays with the HAGAR telescope array

R. J. Britto, B. S. Acharya, G. C. Anupama, P. Bhattacharjee, V. R. Chitnis, R. Cowsik, N. Dorji, S. K. Duhan, K. S. Gothe, P. U. Kamath, P. K. Mahesh, J. Manoharan, B. K. Nagesh, N. K. Parmar, T. P. Prabhu, S. K. Rao, L. Saha, F. Saleem, A. K. Saxena, S. K. Sharma, A. Shukla, B. B. Singh, R. Srinivasan, G. Srinivasulu, P. V. Sudersanan, D. Tsewang, S. S. Upadhya, P. R. Vishwanath

SF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics,

Eds.: G. Alecian, K. Belkacem, R. Samadi and D. Valls-Gabaud, pp.535-538


Published in 2010


  • Towards new analysis of Gamma-Ray sources at HImalayan Gamma-Ray Observatory (HIGRO) in Northern India

Richard J. Britto (on behalf of HIGRO collaboration)

SF2A-2010: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics held June 21-29, 2010 in Marseille, France.

Eds.: S. Boissier, M. Heydari-Malayeri, R. Samadi and D. Valls-Gabaud, p.137

(4 pages, available at http://adsabs.harvard.edu/abs/2010sf2a.conf..137B)


  • Observations with the High Altitute GAmma-Ray (HAGAR) telescope array in the Indian Himalayas

Richard J. Britto (on behalf of HIGRO collaboration)

SF2A-2010: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, held June 21-29, 2010 in Marseille, France.

Eds.: S. Boissier, M. Heydari-Malayeri, R. Samadi and D. Valls-Gabaud, p.133

(2 pages, available at http://adsabs.harvard.edu/abs/2010sf2a.conf..133B)


Published in 2009


  • Observation of Crab Nebula with the HAGAR telescope system at Hanle in the Himalayas

Richard J. Britto (on behalf of HIGRO collaboration)

Proceedings of the “31st International Cosmic Ray Conference” (ICRC),

held in Lόdź, Poland, July 7-15, 2009, paper # icrc0958

(4 pages, proceeding available at http://icrc2009.uni.lodz.pl/proc/pdf/icrc0958.pdf)


  • Gamma-ray source observation with the HAGAR telescope system at Hanle in the Himalayas

Richard J. Britto (on behalf of HIGRO collaboration)

SF2A-2009: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, held in Besançon, France, 29 June-4 July 2009

Eds.: M. Heydari-Malayeri, C. Reylé and R. Samadi, p.131

(4 pages, available at http://adsabs.harvard.edu/abs/2009sf2a.conf..131B)


Published in 2007


  • Study of the Galactic anticentre region at 100 GeV with CELESTE

R. Britto for the CELESTE collaboration

SF2A-2007: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics held in Grenoble, France, July 2-6, 2007

Eds.: J. Bouvier, A. Chalabaev, and C. Charbonnel, p.154

(4 pages, available at http://adsabs.harvard.edu/abs/2007sf2a.conf..154B)


Published in 2005


  • Search for galactic diffuse emission with CELESTE

R. Britto, A. Jacholkowska for the CELESTE collaboration

Proceeding of the 7th Workshop “Towards a Network of Atmospheric Cherenkov Detectors”, held in Palaiseau, France, 27-29 Apr 2005.

Published in “Palaiseau 2005, Towards a network of atmospheric Cherenkov detectors”, pp. 123-127