277 citations · 1.2k across the 28 of their papers we have counts for
28 papers
A possible surviving companion of the SN Ia in the Galactic SNR G272.2-3.2
Pilar Ruiz-Lapuente, Jonay I. González Hernández, Régis Cartier +4
We use the {\it Gaia} EDR3 to explore the Galactic supernova remnant SNR G272.2-3.2, produced by the explosion of a Type Ia supernova (SNIa), about 7,500 years ago, to search for a…
Tycho's supernova: the view from {\it Gaia}
Pilar Ruiz-Lapuente, Jonay I. González Hernández, Roger Mor +6
SN 1572 (Tycho Brahe's supernova) clearly belongs to the Ia (thermonuclear) type. It was produced by the explosion of a white dwarf in a binary system. Its remnant has been the fir…
No surviving companion in Kepler's supernova
Pilar Ruiz-Lapuente, Francesco Damiani, Luigi R. Bedin +5
We have surveyed Kepler's supernova remnant in search of the companion star of the explosion. We have gone as deep as 2.6 solar luminosities in the stars within 20% of the radius o…
The origin of the cosmic gamma-ray background in the MeV range
Pilar Ruiz-Lapuente, Lih-Sin The, Dieter Hartmann +5
There has been much debate about the origin of the diffuse --ray background in the MeV range. At lower energies, AGNs and Seyfert galaxies can explain the background, but not ab…
Origin of Galactic Type-Ia supernovae: SN 1572 and SN 1006
J. I. González Hernández, P. Ruiz-Lapuente, H. M. Tabernero +4
We have been searching for surviving companions of progenitors of Galactic Type-Ia supernovae, in particular SN 1572 and SN 1006. These companion stars are expected to show peculia…
Improved Hubble Space Telescope Proper Motions for Tycho-G and Other Stars in the Remnant of Tycho's Supernova 1572
L. R. Bedin, P. Ruiz-Lapuente, J. I. Gonzalez Hernandez +4
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 Tycho's supernova (SN…