Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Arbutina Bojan"'
Autor:
Arbutina Bojan, Wadhwa Surjit
Publikováno v:
Serbian Astronomical Journal, Vol 2024, Iss 208, Pp 1-15 (2024)
Contact binaries are close binary systems in which both components fill their inner Roche lobes so that the stars are in direct contact, and in potential mass and energy exchange. The most common such systems of low mass are the so-called W UMa-ty
Externí odkaz:
https://doaj.org/article/9efba1f2054c411fbee257a0da493f4e
Autor:
Wadhwa, Surjit S., Landin, Natalia R., Arbutina, Bojan, Tothill, Nicholas F. H., De Horta, Ain Y., Filipovic, Miroslav D., Petrovic, Jelena, Djurasevic, Gojko
With the ever-increasing number of light curve solutions of contact binary systems increasing number of potential bright red nova progenitors are being reported. There remains, however, only one confirmed event. In the present study we undertake a co
Externí odkaz:
http://arxiv.org/abs/2411.02020
We present an analytical model of $\Sigma-D$ relation for supernova remnants (SNRs) evolving in a clumpy medium. The model and its approximations were developed using the hydrodynamic simulations of SNRs in environments of low-density bubbles and clu
Externí odkaz:
http://arxiv.org/abs/2409.07905
Autor:
Arbutina, Bojan, Wadhwa, Surjit
Publikováno v:
Serb. Astron. J., vol.208, p.1 (2024)
Contact binaries are close binary systems in which both components fill their inner Roche lobes so that the stars are in direct contact and in potential mass and energy exchange. The most common such systems of low-mass are the so-called W UMa-type.
Externí odkaz:
http://arxiv.org/abs/2404.03821
Autor:
Wadhwa, Surjit S., Landin, Natalia R., Kostic, Petar, Vince, Oliver, Arbutina, Bojan, De Horta, Ain Y., Filipovic, Miroslav D., Tothill, Nicholas F. H., Petrovic, Jelena, Djuravsevic, Gojko
The orbital stability of contact binary systems has been receiving considerable attention recently. Theoretical studies indicate that merger is likely to occur at very low mass ratios, but the actual mass ratio at which merger may take place is likel
Externí odkaz:
http://arxiv.org/abs/2310.06255
Autor:
Arbutina, Bojan
Publikováno v:
Eur. Phys. J. Plus, 138, 863 (2023)
Diffusive shock acceleration (DSA) of particles at collisionless shocks is the major accepted paradigm about the origin of cosmic rays (CRs). As a theory it was developed during the late 1970s in the so-called test-particle case. If one considers the
Externí odkaz:
http://arxiv.org/abs/2309.08772
Autor:
Wadhwa, Surjit S., Arbutina, Bojan, Petrovic, Jelena, Filipovic, Miroslav D., De Horta, Ain Y., Tothill, Nick F. H., Djuravsevic, Gojko
Multi-band (B, V and R) photometric and spectroscopic observations of six poorly studied contact binaries carried out at the Western Sydney University and Las Cumbres Observatory were analysed using a recent version of the Wilson-Devenney code. All s
Externí odkaz:
http://arxiv.org/abs/2308.09998
Autor:
Filipović, Miroslav D., Dai, Shi, Arbutina, Bojan, Hurley-Walker, Natasha, Brose, Robert, Becker, Werner, Sano, Hidetoshi, Urošević, Dejan, Jarrett, T. H., Hopkins, Andrew M., Alsaberi, Rami Z. E., Alsulami, R., Bordiu, Cristobal, Ball, Brianna, Bufano, Filomena, Burger-Scheidlin, Christopher, Crawford, Evan, English, Jayanne, Haberl, Frank, Ingallinera, Adriano, Kapinska, Anna D., Kavanagh, Patrick J., Koribalski, Bärbel S., Kothes, Roland, Lazarević, Sanja, Mackey, Jonathan, Rowell, Gavin, Leahy, Denis, Loru, Sara, Macgregor, Peter J., Nicastro, Luciano, Norris, Ray P., Riggi, Simone, Sasaki, Manami, Stupar, Milorad, Trigilio, Corrado, Umana, Grazia, Vernstrom, Tessa, Vukotić, Branislav
We present the serendipitous detection of a new Galactic Supernova Remnant (SNR), G288.8-6.3 using data from the Australian Square Kilometre Array Pathfinder (ASKAP)-Evolutionary Map of the Universe (EMU) survey. Using multi-frequency analysis, we co
Externí odkaz:
http://arxiv.org/abs/2308.08716
Autor:
Wadhwa, Surjit S., Arbutina, Bojan, Tothill, Nick F. H., Filipovic, Miroslav D., De Horta, Ain Y., Petrovic, Jelena, Djurasevic, Gojko
Photometric observations and analysis of twelve previously poorly studied contact binary systems is presented. All show total eclipses and have extremely low mass ratios ranging from 0.072 to 0.15. Also, all show characteristics of orbital instabilit
Externí odkaz:
http://arxiv.org/abs/2306.15190
Autor:
Arbutina, Bojan
A well-known paradigm about the origin of Galactic cosmic rays (CRs) is that these high-energy particles are accelerated in the process of diffusive shock acceleration (DSA) at collisionless shocks (at least up to the so-called "knee"energy of $10^{1
Externí odkaz:
http://arxiv.org/abs/2304.05168