Publications (7)
CASA 6: Modular Integration in Python
Ryan Raba, Darrell Schiebel, Bjorn Emonts +6
CASA, the Common Astronomy Software Applications, is the primary data processing software for the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G. Jansky Very La…
New Damped Lya Metallicities from ESI Spectroscopy of Five Palomar Sky Survey Quasars
Jason X. Prochaska, Sandra Castro, S. G. Djorgovski
This paper presents chemical abundance measurements for 12 new z>3 damped Lya systems discovered toward five quasars from the Palomar Sky Survey. We determine HI column densities f…
High resolution infrared spectra of bulge globular clusters: Liller~1 and NGC 6553
Livia Origlia, R. Michael Rich, Sandra Castro
Using the NIRSPEC spectrograph at Keck II, we have obtained echelle spectra covering the range 1.5-1.8um for 2 of the brightest giants in Liller 1 and NGC 6553, old metal rich glob…
Evidence for overdensity around z_em > 4 quasars from the proximity effect
Rodney Nascimento Guimaraes, Patrick Petitjean, Emmanuel Beaumont Rollinde +5
We study the density field around z_em > 4 quasars using high quality medium spectral resolution ESI-Keck spectra (R~4300, SNR > 25) of 45 high-redshift quasars selected from a tot…
Draco 119: A Remarkable Heavy Element-deficient Giant
Jon. P. Fulbright, R. Michael Rich, Sandra Castro
We report the abundance analysis of new high S/N spectra of the most metal-poor ([Fe/H] ) star presently known to be a member of a dwarf galaxy, the Draco dSph red giant,…
CASA, the Common Astronomy Software Applications for Radio Astronomy
THE CASA TEAM, Ben Bean, Sanjay Bhatnagar +46
CASA, the Common Astronomy Software Applications, is the primary data processing software for the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G. Jansky Very La…
Damped and sub-damped Lyman-? absorbers in z > 4 QSOs
Rodney Guimaraes, Patrick Petitjean, Reinaldo Ramos De Carvalho +5
We present the results of a survey for damped (DLA, log N(H I) > 20.3) and sub-damped Lyman-? systems (19.5 < log N(H I) < 20.3) at z > 2.55 along the lines-of-sight to 77 quasars…