Temporal and Spectral Analysis of the Unique and Second Brightest Gamma-Ray Burst GRB 230307A: Insights from GECAM and Fermi/GBM Observations

Autor: Moradi, R., Wang, C. W., Zhang, B., Wang, Y., Xiong, S. -L., Yi, S. -X., Tan, W. -J., Karlica, M., Zhang, S. -N.

In this study, we present the pulse profile of the unique and the second brightest gamma-ray burst GRB 230307A, and analyze its temporal behavior using a joint GECAM--Fermi/GBM time-resolved spectral analysis. The utilization of GECAM data is advanta

Externí odkaz: http://arxiv.org/abs/2410.17189

Evidence of mini-jet emission in a large emission zone from a magnetically-dominated gamma-ray burst jet

Autor: Yi, S. -X., Wang, C. -W., Shao, X. -Y., Moradi, R., Gao, H., Zhang, B., Xiong, S. -L., Zhang, S. -N., Tan, W. -J., Liu, J. -C., Xue, W. -C., Zhang, Y. -Q., Zheng, C., Wang, Y., Zhang, P., An, Z. -H., Cai, C., Feng, P. -Y., Gong, K., Guo, D. -Y., Huang, Y., Li, B., Li, X. -B., Li, X. -Q., Liu, X. -J., Liu, Y. -Q., Ma, X., Peng, W. -X., Qiao, R., Song, L. -M., Wang, J., Wang, P., Wen, X. -Y., Xiao, S., Xu, Y. -B., Yang, S., Yi, Q. -B., Zhang, D. -L., Zhang, F., Zhang, H. -M., Zhang, J. -P., Zhang, Z., Zhao, X. -Y., Zhao, Y., Zheng, S. -J.

The second brightest GRB in history, GRB230307A provides an ideal laboratory to study the details of GRB prompt emission thanks to its extraordinarily high photon statistics and its single broad pulse overall shape characterized by an energy-dependen

Externí odkaz: http://arxiv.org/abs/2310.07205

Revisiting the Properties of GW190814 and Its Formation History

Autor: Lyu, F., Yuan, L., Wu, D. H., Guo, W. H., Wang, Y. Z., Yi, S. X., Tang, Q. W., Hu, R. -C., Zhu, J. -P., Shu, X. W., Qin, Y., Liang, E. W.

GW190814 was reported during LIGO's and Virgo's third observing run with the most asymmetric component masses (a $\sim 23$ $M_{\odot}$ black hole and a $\sim2.6$ $M_{\odot}$ compact object). Under the assumption that this event is a binary black hole

Externí odkaz: http://arxiv.org/abs/2308.09893

A simulation study on the constraints of the Hubble constant using sub-threshold GW observation on double neutron star mergers

Autor: Du, Y. F., Yi, S. X., Zhang, S. N., Zhang, Shu

Gravitational waves observation with electromagnetic counterparts provides an approach to measure the Hubble constant which is also known as the bright siren method. Great hope has been put into this method to arbitrate the Hubble tension. In this st

Externí odkaz: http://arxiv.org/abs/2302.09764

Observational constraints on the optical and near-infrared emission from the neutron star-black hole binary merger S190814bv

Autor: Ackley, K., Amati, L., Barbieri, C., Bauer, F. E., Benetti, S., Bernardini, M. G., Bhirombhakdi, K., Botticella, M. T., Branchesi, M., Brocato, E., Bruun, S. H., Bulla, M., Campana, S., Cappellaro, E., Castro-Tirado, A. J., Chambers, K. C., Chaty, S., Chen, T. -W., Ciolfi, R., Coleiro, A., Copperwheat, C. M., Covino, S., Cutter, R., D'Ammando, F., D'Avanzo, P., De Cesare, G., D'Elia, V., Della Valle, M., Denneau, L., De Pasquale, M., Dhillon, V. S., Dyer, M. J., Elias-Rosa, N., Evans, P. A., Eyles-Ferris, R. A. J., Fiore, A., Fraser, M., Fruchter, A. S., Fynbo, J. P. U., Galbany, L., Gall, C., Galloway, D. K., Getman, F. I., Ghirlanda, G., Gillanders, J. H., Gomboc, A., Gompertz, B. P., González-Fernández, C., González-Gaitán, S., Grado, A., Greco, G., Gromadzki, M., Groot, P. J., Gutiérrez, C. P., Heikkilä, T., Heintz, K. E., Hjorth, J., Hu, Y. -D., Huber, M. E., Inserra, C., Izzo, L., Japelj, J., Jerkstrand, A., Jin, Z. P., Jonker, P. G., Kankare, E., Kann, D. A., Kennedy, M., Kim, S., Klose, S., Kool, E. C., Kotak, R., Kuncarayakti, H., Lamb, G. P., Leloudas, G., Levan, A. J., Longo, F., Lowe, T. B., Lyman, J. D., Magnier, E., Maguire, K., Maiorano, E., Mandel, I., Mapelli, M., Mattila, S., McBrien, O. R., Melandri, A., Michałowski, M. J., Milvang-Jensen, B., Moran, S., Nicastro, L., Nicholl, M., Guelbenzu, A. Nicuesa, Nuttal, L., Oates, S. R., O'Brien, P. T., Onori, F., Palazzi, E., Patricelli, B., Perego, A., Torres, M. A. P., Perley, D. A., Pian, E., Pignata, G., Piranomonte, S., Poshyachinda, S., Possenti, A., Pumo, M. L., Quirola-Vásquez, J., Ragosta, F., Ramsay, G., Rau, A., Rest, A., Reynolds, T. M., Rosetti, S. S., Rossi, A., Rosswog, S., Sabha, N. B., Carracedo, A. Sagués, Salafia, O. S., Salmon, L., Salvaterra, R., Savaglio, S., Sbordone, L., Schady, P., Schipani, P., Schultz, A. S. B., Schweyer, T., Smartt, S. J., Smith, K. W., Smith, M., Sollerman, J., Srivastav, S., Stanway, E. R., Starling, R. L. C., Steeghs, D., Stratta, G., Stubbs, C. W., Tanvir, N. R., Testa, V., Thrane, E., Tonry, J. L., Turatto, M., Ulaczyk, K., van der Horst, A. J., Vergani, S. D., Walton, N. A., Watson, D., Wiersema, K., Wiik, K., Wyrzykowski, L., Yang, S., Yi, S. -X., Young, D. R.

Publikováno v: A&A 643, A113 (2020)

On 2019 August 14, the LIGO and Virgo interferometers detected a high-significance event labelled S190814bv. Preliminary analysis of the GW data suggests that the event was likely due to the merger of a compact binary system formed by a BH and a NS.

Externí odkaz: http://arxiv.org/abs/2002.01950