MG15 - Talk detail |
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Participant |
Zhang, Bing | |||||||
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Institution |
University of Nevada, Las Vegas - 4505 Maryland Parkway, Box 454002 - Las Vegas - Nevada - USA | |||||||
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Session |
GB7 |
Accepted |
Yes |
Order |
7 |
Time |
18:35 | 20' |
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Talk |
Oral abstract |
Title |
GW170817/GRB 170817A/AT2017gfo/afterglow: what did the first NS-NS merger event tell us? | |||||
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Abstract |
I will discuss the theoretical implications of the multi-messenger, multi-wavelength data of the first NS-NS merger event GW170817/GRB 170817A/AT2017gfo/afterglow, including the origin of GRB prompt emission, the 1.7s-delay between the GRB and the merger, the mechanisms of energy injection in the afterglow phase, the origin of the two-component kilonova emission, as well as a possible long-lived central engine in the remnant of the merger. |
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Pdf file |
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Session |
GB1 |
Accepted |
Yes |
Order |
7 |
Time |
18:15 | 25' |
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Talk |
Oral abstract |
Title |
FRB 121102 is special and its interpretation within the cosmic comb model | |||||
| Coauthors | ||||||||
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Abstract |
Dozens of FRB progenitor models have been discussed in the literature. I show that the published FRB data suggest that the repeater FRB121102 is abnormally active than other FRBs, suggesting that it is possible that there is more than one type FRBs. I discuss the cosmic comb model of FRBs and show that it can account for all the available data of FRB 121102. Three predictions are presented to test this model. |
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Pdf file |
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Session |
GB4 |
Accepted |
Yes |
Order |
4 |
Time |
16:15 | 25' + 5' |
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Talk |
Oral abstract |
Title |
On photospheric emission in GRBs | |||||
| Coauthors | ||||||||
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Abstract |
Photosphere emission likely contributes to the observed gamma-ray emission in at least some GRBs. I will present the arguments both in favor of and against the photosphere emission as the dominant emission component in GRBs. I will then argue that the GRB jet composition is diverse among GRBs. Photosphere emission is the dominating emission component in matter-dominated fireballs, but is suppressed in jets that are Poynting-flux-dominated. |
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Pdf file |
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