389 citations
- Carnegie ObservatoriesUS17 papers
- Geophysical LaboratoryUS9 papers
- University of California, BerkeleyUS7 papers
- California Institute of TechnologyUS5 papers
- Center for Astrophysics Harvard & SmithsonianUS3 papers
- Goddard Space Flight CenterUS3 papers
- Leiden UniversityNL3 papers
- Princeton UniversityUS3 papers
- Stockholm UniversitySE3 papers
- The University of Texas at AustinUS3 papers
- University of California, IrvineUS3 papers
- Bhabha Atomic Research CentreIN2 papers
7 papers · 1 filter
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…
The Growth of Black Holes: Insights From Obscured Active Galaxies
Jenny E. Greene, Nadia L. Zakamska, Xin Liu +2
Obscured or narrow-line active galaxies offer an unobstructed view of the quasar environment in the presence of a luminous and vigorously accreting black hole. We exploit the large…
Spectroscopic study of the N159/N160 complex in the Large Magellanic Cloud
Cecilia Fariña, Guillermo L. Bosch, Nidia I. Morrell +2
We present a spectroscopic study of the N159/N160 massive-star forming region south of 30 Doradus in the Large Magellanic Cloud, classifying a total of 189 stars in the field of th…
Radiatively Inefficient Accretion in Nearby Galaxies
Luis C. Ho
We use new central stellar velocity dispersions and nuclear X-ray and Halpha luminosities for the Palomar survey of nearby galaxies to investigate the distribution of nuclear bolom…
Eclipsing Binary Stars as Tests of Stellar Evolutionary Models and Stellar Ages
Keivan G. Stassun, Leslie Hebb, Mercedes Lopez-Morales +1
Eclipsing binary stars provide highly accurate measurements of the fundamental physical properties of stars. They therefore serve as stringent tests of the predictions of evolution…
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…