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- Lectures
- Institute of Astronomy and Astrophysics
- Location
R1203 of the Astronomy-Mathematics Building, National Taiwan University
- Speaker Name
Chin-Ping Hu [National Changhua University of Education]
- State
Definitive
- Url
2024-09-04 14:20 - 15:20
![Add To Calendar](https://www.google.com/calendar/render?action=TEMPLATE&trp=true&sf=true&output=xml&dates=20240904T1420SSZ/20240904T1520SSZ&text=Unveiling the Connection between Fast Radio Bursts and Magnetars&location=R1203 of the Astronomy-Mathematics Building, National Taiwan University&details=<div class="ck-content"><p><strong style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 204);color:rgb(0, 0, 0);font-family:Arial, Helvetica, sans-serif;font-size:14.4px;font-style:normal;font-variant-caps:normal;font-variant-ligatures:normal;letter-spacing:normal;orphans:2;text-align:left;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;">Colloquium</strong><br><span style="background-color:rgb(255,255,204);color:rgb(0,0,0);"><span style="-webkit-text-stroke-width:0px;display:inline !important;float:none;font-family:Arial, Helvetica, sans-serif;font-size:14.4px;font-style:normal;font-variant-caps:normal;font-variant-ligatures:normal;font-weight:400;letter-spacing:normal;orphans:2;text-align:left;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;">Unveiling the Connection between Fast Radio Bursts and Magnetars</span></span></p><div class="toggleit" style="-webkit-text-stroke-width:0px;background-color:rgb(255, 255, 204);color:rgb(0, 0, 0);font-family:Arial, Helvetica, sans-serif;font-size:14.4px;font-style:normal;font-variant-caps:normal;font-variant-ligatures:normal;font-weight:400;letter-spacing:normal;margin:0px;orphans:2;padding:0px;text-align:left;text-decoration-color:initial;text-decoration-style:initial;text-decoration-thickness:initial;text-indent:0px;text-transform:none;white-space:normal;widows:2;word-spacing:0px;"><p><span style="color:rgb(102,102,0);"><span class="clickHere" style="background-image:url("../_img/icon_arrow_open_666600.gif");background-position:right bottom;background-repeat:no-repeat;cursor:pointer;padding-right:11px;"><u>Abstract</u></span></span></p><p class="click2show" style="color:rgb(0, 51, 0);display:block;line-height:1.5;margin:10px 0px 0px;padding:0px;text-indent:2em;">Fast Radio Bursts (FRBs) remain one of the most enigmatic astrophysical phenomena of this decade, with their origins still largely unknown despite numerous theoretical models being proposed. Magnetars, neutron stars with extremely high magnetic fields and diverse X-ray emissions, stand out as promising sources of part of FRBs. In this talk, I will focus on observational evidence linking FRBs to magnetars, particularly through our recent observations of the FRB-emitting magnetar SGR 1935+2154. Thanks to high-cadence observations carried out by the NICER and NuSTAR, we observed two spin-up glitches within nine hours during an outburst associated with an intermediate flare, a forest of X-ray bursts, rapid spectral changes, and an FRB. These phenomena suggest that rapid changes in rotational frequency might trigger these energetic events, offering valuable insights and directing future observational strategies.</p></div></div>){kind=icon}
Colloquium
Unveiling the Connection between Fast Radio Bursts and Magnetars
Abstract
Fast Radio Bursts (FRBs) remain one of the most enigmatic astrophysical phenomena of this decade, with their origins still largely unknown despite numerous theoretical models being proposed. Magnetars, neutron stars with extremely high magnetic fields and diverse X-ray emissions, stand out as promising sources of part of FRBs. In this talk, I will focus on observational evidence linking FRBs to magnetars, particularly through our recent observations of the FRB-emitting magnetar SGR 1935+2154. Thanks to high-cadence observations carried out by the NICER and NuSTAR, we observed two spin-up glitches within nine hours during an outburst associated with an intermediate flare, a forest of X-ray bursts, rapid spectral changes, and an FRB. These phenomena suggest that rapid changes in rotational frequency might trigger these energetic events, offering valuable insights and directing future observational strategies.
