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Astrophysics Research Centre

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Other papers, not those focusing on nebular analysis or SLSNe:

A kilonova as the electromagnetic counterpart to a gravitational-wave source (Smartt+2017) The discovery of the first kilonova AT2017gfo. I carried out the light curve fitting to derive first estimates of ejecta mass and expansion velocities.

Hydrogen-rich supernovae beyond the neutrino-driven core-collapse paradigm (Terreran+2017) Discovery a a truly remarkable Type II SN that looks like a scaled-up version of a BSG explosion like SN 1987A, but emits 100 times more energy.

Multi-messenger Observations of a Binary Neutron Star Merger (Abbott+2017) The cross-consortium paper on the kilonova discovery, summarizing the view from all data from a global perspective.

Inelastic e+Mg collision data and its impact on modelling stellar and supernova spectra (Barklem+2017) Magnesium lines play a key role in the diagnosis of CCSN spectra. The Mg I] 4571 line is almost always strong, and helps us diagnose important ratios like Mg/O that are determined by convective processes as well as nuclear cross section. In fact, the solar Mg/O ratio has long been somewhat of a conundrum as stellar evolution models tend to produce too low values (see Arnett book for a good discussion of this). Here, new accurate collision strengths were calculated by the Uppsala atomic physics group, and the impact of these on SN modelling was tested with SUMO. As a reminder of a lesson we learn but keep forgetting, the models are only as good as the atomic data; here new cross section lead to up to a factor 2 different Mg I lines in SUMO.

Discovery of Molecular Hydrogen in SN 1987A (Fransson+2016) Up until 2016, only CO and SiO had been unambigously detected in SN spectra. Here, H2 was added as a third molecule in this group, using high-quality data for SN 1987A. H2 is important because it has a large UV opacity that will significantly change the radiation transport in the H zones. And since H material gets mixed into the core by Rayleigh Taylor, this affects not only the envelope but also the core. Future models need to consider this molecular opacity.

A Search for an Optical Counterpart to the Gravitational-wave Event GW151226 (Smartt+2016)

SN 2015BN: A Detailed Multi-wavelength View of a Nearby Superluminous Supernova(Nicholl+2016)

Constraints on Explosive Silicon Burning in Core-collapse Supernovae from Measured Ni/Fe Ratios (Jerkstrand+2015)

PESSTO: survey description and products from the first data release by the Public ESO Spectroscopic Survey of Transient Objects

On the triple peaks of SNHunt248 in NGC 5806

A comparative study of Type II-P and II-L supernova rise times as exemplified by the case of LSQ13cuw

The Destruction of the Circumstellar Ring of SN 1987A

SN 2009ip at late times - an interacting transient at +2 years

OGLE-2013-SN-079: A Lonely Supernova Consistent with a Helium Shell Detonation

A stubbornly large mass of cold dust in the ejecta of Supernova 1987A

Spitzer observations of SN 2014J and properties of mid-IR emission in Type Ia Supernovae

SN 2012ec: mass of the progenitor from PESSTO follow-up of the photospheric phase

Optical and near-infrared observations of SN 2011dh - The first 100 days

SN2012ca: a stripped envelope core-collapse SN interacting with dense circumstellar medium

Late Spectral Evolution of the Ejecta and Reverse Shock in SN 1987A

The Morphology of the Ejecta in Supernova 1987A: A Study over Time and Wavelength

SN 2009ip à la PESSTO: no evidence for core collapse yet

Comparison of progenitor mass estimates for the Type IIP SN 2012A

X-ray illumination of the ejecta of supernova 1987A

users/ajerkstrand/other.txt · Last modified: 2018/05/09 11:03 by Anders Jerkstrand

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