10.4k citations
- Carnegie ObservatoriesUS2.7k papers
- California Institute of TechnologyUS914 papers
- Space Telescope Science InstituteUS659 papers
- Center for Astrophysics Harvard & SmithsonianUS619 papers
- University of ArizonaUS595 papers
- University of California, BerkeleyUS532 papers
- University of California, Santa CruzUS523 papers
- Princeton UniversityUS503 papers
- Department of Terrestrial MagnetismUS499 papers
- Centre National de la Recherche ScientifiqueFR493 papers
- Max Planck Institute for AstronomyDE429 papers
- Johns Hopkins UniversityUS414 papers
Showing 2009 · astro-ph.HEShow all
3 papers · 2 filters
astro-ph.HE2009★ 162 cited
Variable Sodium Absorption in a Low-Extinction Type Ia Supernova
Joshua D. Simon, Avishay Gal-Yam, Orly Gnat +18
Recent observations have revealed that some Type Ia supernovae exhibit narrow, time-variable Na I D absorption features. The origin of the absorbing material is controversial, but…
astro-ph.HE2009★ 134 cited
The He-rich core-collapse supernova 2007Y: Observations from X-ray to Radio Wavelengths
Maximilian Stritzinger, Paolo Mazzali, Mark M. Phillips +21
A detailed study spanning approximately a year has been conducted on the Type Ib supernova 2007Y. Imaging was obtained from X-ray to radio wavelengths, and a comprehensive set of m…
astro-ph.HE2009★ 154 cited
An Intermediate Luminosity Transient in NGC300: The Eruption of a Dust-Enshrouded Massive Star
E. Berger, A. M. Soderberg, R. A. Chevalier +10
[abridged] We present multi-epoch high-resolution optical spectroscopy, UV/radio/X-ray imaging, and archival Hubble and Spitzer observations of an intermediate luminosity optical t…