Astrophysical: Supernovae

  • Publication
    GRB 081007 and GRB 090424: The Surrounding Medium, Outflows, and Supernovae
    We discuss the results of the analysis of multi-wavelength data for the afterglows of GRB 081007 and GRB 090424, two bursts detected by Swift. One of them, GRB...
  • Talk
    HaGS: a survey of star forming galaxies in the local Universe
    I will present results from a survey of the star formation properties of nearby galaxies, using H alpha narrow-band imaging. The first half of the talk will...
  • Publication
    Improved distance determination to M 51 from supernovae 2011dh and 2005cs
    Aims: The appearance of two recent supernovae, SN 2011dh and 2005cs, both in M 51, provides an opportunity to derive an improved distance to their host galaxy...
  • Publication
    Improved Hubble Space Telescope proper motions for Tycho-G and other stars in the remnant of Tycho's Supernova 1572
    With archival and new Hubble Space Telescope observations, we have refined the space-velocity measurements of the stars in the central region of the remnant of...
  • Publication
    Incompressibility of hot nuclear matter, general relativistic stellar collapse and shock propagation
    Research was carried out on the effect of considering two extreme kinds of Skyrme-type nuclear interactions on the outcome of stellar core collapsing models...
  • Talk
    Interacting Binary Stars and Stellar Populations
    Spectroscopic analysis of stellar populations is widely used to understand the history of many systems including globular clusters, nuclear star clusters, dwarf...
  • Publication
    Interstellar and intergalactic gas in the direction of SN 1993J in M81
    During the first few nights following its discovery, we observed the interstellar Ca II and Na I lines towards supernova 1993J at high spectral resolution (full...
  • Publication
    LEGUS Discovery of a Light Echo Around Supernova 2012aw
    We have discovered a luminous light echo around the normal Type II-Plateau Supernova (SN) 2012aw in Messier 95 (M95; NGC 3351), detected in images obtained...
  • Publication
    Lensed Type Ia Supernova "Encore" at z = 2: The First Instance of Two Multiply Imaged Supernovae in the Same Host Galaxy
    A bright (m F150W,AB = 24 mag), z = 1.95 supernova (SN) candidate was discovered in JWST/NIRCam imaging acquired on 2023 November 17. The SN is quintuply imaged...