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  1. Article

    Open Access

    JWST detection of a supernova associated with GRB 221009A without an r-process signature

    Identifying the sites of r-process nucleosynthesis, a primary mechanism of heavy element production, is a key goal of astrophysics. The discovery of the brightest gamma-ray burst (GRB) to date, GRB 221009A, pr...

    Peter K. Blanchard, V. Ashley Villar, Ryan Chornock, Tanmoy Laskar… in Nature Astronomy (2024)

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  2. Article

    Open Access

    Heavy-element production in a compact object merger observed by JWST

    The mergers of binary compact objects such as neutron stars and black holes are of central interest to several areas of astrophysics, including as the progenitors of gamma-ray bursts (GRBs)1, sources of high-freq...

    Andrew J. Levan, Benjamin P. Gompertz, Om Sharan Salafia, Mattia Bulla… in Nature (2024)

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  3. No Access

    Chapter and Conference Paper

    Classifying Gamma-Ray Burst X-Ray Afterglows with a Variational Autoencoder

    Today, over 1500 gamma-ray burst (GRB) afterglows have been observed by The Neil Gehrels Swift Observatory, with light curves displaying different morphologies in the succession of decay regimes with time. We ...

    Eliot Ayache, Tanmoy Laskar in Machine Learning for Astrophysics (2023)

  4. No Access

    Article

    The Birth of a Relativistic Jet Following the Disruption of a Star by a Cosmological Black Hole

    A black hole can launch a powerful relativistic jet after it tidally disrupts a star. If this jet fortuitously aligns with our line of sight, the overall brightness is Doppler boosted by several orders of magn...

    Dheeraj R. Pasham, Matteo Lucchini, Tanmoy Laskar, Benjamin P. Gompertz… in Nature Astronomy (2023)

  5. No Access

    Article

    A kilonova following a long-duration gamma-ray burst at 350 Mpc

    Gamma-ray bursts (GRBs) are divided into two populations1,2; long GRBs that derive from the core collapse of massive stars (for example, ref. 3) and short GRBs that form in the merger of two compact objects4,5. A...

    Jillian C. Rastinejad, Benjamin P. Gompertz, Andrew J. Levan, Wen-fai Fong… in Nature (2022)