Variable Sodium Absorption in a Low-extinction Type Ia Supernova (2009)
Simon, Joshua D., Gal-Yam, Avishay, Gnat, Orly, Quimby, Robert M., Ganeshalingam, Mohan, Silverman, Jeffrey M., ...
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 it may suggest the...
Variable Sodium Absorption in a Low-Extinction Type Ia Supernova (2009)
Simon, Joshua D., Gal-Yam, Avishay, Gnat, Orly, Quimby, Robert M., Ganeshalingam, Mohan, Silverman, Jeffrey M., ...
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 it may suggest the...
Variable sodium absorption in a low-extinction type Ia supernova (2009)
Simon, Joshua D., Gal-Yam, Avishay, Gnat, Orly, Quimby, Robert M., Ganeshalingam, Mohan, Silverman, Jeffrey M., ...
Metal-Absorption Column Densities in Fast Radiative Shocks (2008)
In this paper we present computations of the integrated metal-ion column densities produced in the post-shock cooling layers behind fast, radiative shock-waves. For this purpose, we have constructed...
On the connection between metal absorbers and quasar nebulae (2008)
Chelouche, Doron, Ménard, Brice, Bowen, David V., Gnat, Orly
We establish a simple model for the distribution of cool (~10^4 K) gas around L* galaxies using the properties of strong Mg II absorption line systems as observational constraints. Our analysis...
On the Connection Between Metal Absorbers and Quasar Nebulae (2007)
Chelouche, Doron, Ménard, Brice, Bowen, David V., Gnat, Orly
We establish a simple model for the distribution of cold gas around L* galaxies using a large set of observational constraints on the properties of strong MgII absorber systems. Our analysis suggests...
Time-Dependent Ionization in Radiatively Cooling Gas (2006)
We present new computations of the equilibrium and non-equilibrium cooling efficiencies and ionization states for low-density radiatively cooling gas containing cosmic abundances of the elements H,...
Photoionized Gas in Dark-Matter Minihalos in the Galactic Halo and Local Group (2004)
(Abridged) We present computations of the metals photoionization structures of pressure supported gas clouds in gravitationally dominant DM minihalos in the extended Galactic halo or LG environment....
Studies of multiple stellar systems - IV. The triple-lined spectroscopic system Gliese 644 (2001)
Mazeh, Tsevi, Latham, David W., Goldberg, Elad, Torres, Guillermo, Stefanik, Robert P., Henry, Todd J., ...
We present a radial-velocity study of the triple-lined system Gliese 644 and derive spectroscopic elements for the inner and outer orbits with periods of 2.9655 and 627 days. We also utilize old...