ALMA Papers from April May 2014 links and summaries
Resolved images of the protoplanetary disk around HD 100546 with ALMA Jaime E. Pineda et al. Although this object showed indications of ongoing or recent planet formation neither gas nor mm continuum emission had been seen. ALMA images a gas disk to 350AU, and dust to 60 AU. The truncated dust disk may relate to a protoplanet candidate identified by NACO/VLT observations. Future high resolution ALMA data could reveal the presence of a planet through the detection of circumplanetary disk material. 2011.0.00863.S
ALMA Observation of 158 micron CII Line and Dust Continuum of a z=7 Normally Star-forming Galaxy in the Epoch of Reionization Kazuaki Ota et al (including F. Walter and J. Hodge). ALMA observations of the [CII] line and far-infrared (FIR) continuum of a normally star-forming galaxy in the reionization epoch, the z=6.96 Ly-alpha emitter (LAE) IOK-1 are presented--the galaxy was not detected in both [CII] and continuum. Results suggest that LAEs in the reionization epoch have significantly lower gas and dust enrichment than AGN-powered systems and starbursts at similar/lower redshifts, as well as local star-forming galaxies. 2011.0.00767.S (Not enough executions in Cycle 0 spreadsheet)
ALMA observations of the kinematics and chemistry of disc formation Johan E. Lindberg, et al. present ALMA observations of dust from four disks and C17O rotation measurements toward IRS7B. Methanol is detected weakly in the disk, more strongly in the outflow. Authors propose that the envelope region housing complex organics is quenched by the growing disk. ADS/JAO.ALMA#2011.0.00628.S.
An ALMA Early Science survey of molecular absorption lines toward PKS1830-211 -- Analysis of the absorption profiles S. Muller, others including J. Ott. 42 different species plus 14 different rare isotopologues have been detected toward the SW image, and 14 species toward the NE line-of-sight. The abundances of CH, H2O, HCO+, HCN, and NH3 relative to H2 are found to be comparable to those in the Galactic diffuse medium. The ground-state line of ortho-water has the deepest absorption of all molecules and therefor may have the best potential for detecting diffuse molecular gas in absorption at high redshift. Project 00405
ALMA Imaging of Gas and Dust in a Galaxy Protocluster at Redshift 5.3 Dominik A. Riechers and authors, 5 NA and 1 ALMA. ALMA imaging of strong [CII], OH and rest-frame 157.7 um continuum emission toward the center of the galaxy protocluster associated with the z=5.3 submillimeter galaxy (SMG) suggests that AzTEC -3 forms stars at Sigma_SFR approaching the Eddington limit for radiation pressure supported disks. The SED is consistent with expectations for young starbursts without significant older stellar populations. This suggests that these galaxies are significantly metal-enriched, but not heavily dust-obscured, "normal" star-forming galaxies at z>5, showing that ALMA can detect the interstellar medium in "typical" galaxies in the very early universe. Project 00064 Thanks Braatz and Lacy.
X-Ray Emission from Star-Forming Galaxies - Signatures of Cosmic Rays and Magnetic Fields Jennifer Schober, Dominik R. G. Schleicher, Ralf S. Klessen. Using the ALMA LABOCA E-CDF-S Submm Survey (ALESS) (Hodge et al. 2013; Karim et al. 2013), the authors suggest that the mean magnetic energy of young galaxies is similar to the one in local galaxies. This points toward an early generation of galactic magnetic fields, which is in agreement with current dynamo evolution models. Note that the ALMA program is not cited specifically. ADS/JAO.ALMA#2011.1.00294.S.