Research

I am broadly interested in understanding the nature and origin of various transient (time-domain) astrophysical phenomena, such as peculiar supernoave (Ca-rich SNe, superluminous SNe, fast-evolving transients), fast radio bursts (FRBs), and gamma-ray bursts (GRBs). Driven by observational data, I aim to constrain and model the underlying physical mechanisms producing such dramatic events, while proposing model-predictions that may be tested against future observations.

In particular, I have worked on different aspects of compact-object mergers, including NS-NS mergers (which are the likely progenitors of short GRBs, the production site of heavy r-process material in the universe, and are prime targets for near-future GW detections), and their oft forgotten siblings — WD-NS mergers. The latter are extremely interesting (and comparatively unexplored) events which may produce peculiar SNe (possibly related to the so-called Ca-rich transients), pulsar-planets, and recycled isolated millisecond pulsars, and have been the focus of attention in much of my recent work.

Selected Publications:

for a complete and up-to-date list of publications, search for me on ADS or arXiv.

[9]  Margalit B., Metzger B. D., Thompson T. A., Nicholl M., Sukhbold T., “The GRB-SLSN Connection: mis-aligned magnetars, weak jet emergence, and observational signatures”, submitted to MNRAS (2017)

[8]  Metzger B. D., Berger E., Margalit B.“Millisecond Magnetar Birth Connects FRB 121102 to Superluminous Supernovae and Long Duration Gamma-ray Bursts”, ApJL, 841, 14 (2017)

[7]  Margalit B., Metzger B. D., “Merger of a white dwarf-neutron star binary to 1029 carat diamonds: origin of the pulsar planets”, MNRAS, 465, 2790 (2017)

[6]  Margalit B., Metzger B. D., “Time-dependent models of accretion discs with nuclear burning following the tidal disruption of a white dwarf by a neutron star”, MNRAS, 461, 1154 (2016)

[5] Margalit B., Loeb A., “Inferring the Distances of Fast Radio Bursts Through Associated 21-cm Absorption”, MNRAS Letters, 460, L25 (2016)

[4] Margalit B., Shaviv N. J., “Constraining MOND Using the Vertical Motion of Stars in the Solar Neighborhood”, MNRAS, 456, 1163 (2016)

[3] Metzger B. D., Margalit B., Kasen D., Quataert E., “The diversity of transients from magnetar birth in core collapse supernovae”, MNRAS, 454, 3311 (2015)

[2] Margalit B., Metzger B. D., Beloborodov A. M., “Does the Collapse of a Supramassive Neutron Star Leave a Debris Disk?”, PRL, 115, 171101 (2015)

[1] Margalit B., Piran T., “Radio Flares of Compact Binary Mergers: the Affect of Non-Trivial Outflow Geometry”, MNRAS, 452, 3419 (2015)